From 2e3fb275e7415f162c438ee52c03b7fc48292628 Mon Sep 17 00:00:00 2001 From: jameslahm Date: Sat, 23 Apr 2022 09:47:32 +0800 Subject: [PATCH] [test] Move cctest/test-bignum to unittests MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit ... /base/bignum-unittest. Bug: v8:12781 Change-Id: I217dd7c4ef59cf1fdbe83a268d0288c38f0e9d4d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3599401 Reviewed-by: Leszek Swirski Commit-Queue: 王澳 Cr-Commit-Position: refs/heads/main@{#80138} --- test/cctest/BUILD.gn | 1 - test/cctest/test-bignum.cc | 1544 ------------------------ test/unittests/BUILD.gn | 1 + test/unittests/base/bignum-unittest.cc | 1501 +++++++++++++++++++++++ 4 files changed, 1502 insertions(+), 1545 deletions(-) delete mode 100644 test/cctest/test-bignum.cc create mode 100644 test/unittests/base/bignum-unittest.cc diff --git a/test/cctest/BUILD.gn b/test/cctest/BUILD.gn index a48f9c3864..5aa6b2889c 100644 --- a/test/cctest/BUILD.gn +++ b/test/cctest/BUILD.gn @@ -194,7 +194,6 @@ v8_source_set("cctest_sources") { "test-api.h", "test-atomicops.cc", "test-bignum-dtoa.cc", - "test-bignum.cc", "test-circular-queue.cc", "test-code-layout.cc", "test-code-stub-assembler.cc", diff --git a/test/cctest/test-bignum.cc b/test/cctest/test-bignum.cc deleted file mode 100644 index 5fcc1a5450..0000000000 --- a/test/cctest/test-bignum.cc +++ /dev/null @@ -1,1544 +0,0 @@ -// Copyright 2010 the V8 project authors. All rights reserved. -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following -// disclaimer in the documentation and/or other materials provided -// with the distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived -// from this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -#include - -#include "src/base/numbers/bignum.h" -#include "src/base/platform/platform.h" -#include "src/init/v8.h" -#include "test/cctest/cctest.h" - -namespace v8 { -namespace base { -namespace test_bignum { - -static const int kBufferSize = 1024; - -static void AssignHexString(Bignum* bignum, const char* str) { - bignum->AssignHexString(CStrVector(str)); -} - -static void AssignDecimalString(Bignum* bignum, const char* str) { - bignum->AssignDecimalString(CStrVector(str)); -} - -TEST(Assign) { - char buffer[kBufferSize]; - Bignum bignum; - Bignum bignum2; - bignum.AssignUInt16(0); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("0", buffer)); - bignum.AssignUInt16(0xA); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("A", buffer)); - bignum.AssignUInt16(0x20); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("20", buffer)); - - - bignum.AssignUInt64(0); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("0", buffer)); - bignum.AssignUInt64(0xA); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("A", buffer)); - bignum.AssignUInt64(0x20); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("20", buffer)); - bignum.AssignUInt64(0x100); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("100", buffer)); - - // The first real test, since this will not fit into one bigit. - bignum.AssignUInt64(0x12345678); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("12345678", buffer)); - - uint64_t big = 0xFFFF'FFFF'FFFF'FFFF; - bignum.AssignUInt64(big); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("FFFFFFFFFFFFFFFF", buffer)); - - big = 0x1234'5678'9ABC'DEF0; - bignum.AssignUInt64(big); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("123456789ABCDEF0", buffer)); - - bignum2.AssignBignum(bignum); - CHECK(bignum2.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("123456789ABCDEF0", buffer)); - - AssignDecimalString(&bignum, "0"); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("0", buffer)); - - AssignDecimalString(&bignum, "1"); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1", buffer)); - - AssignDecimalString(&bignum, "1234567890"); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("499602D2", buffer)); - - AssignHexString(&bignum, "0"); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("0", buffer)); - - AssignHexString(&bignum, "123456789ABCDEF0"); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("123456789ABCDEF0", buffer)); -} - - -TEST(ShiftLeft) { - char buffer[kBufferSize]; - Bignum bignum; - AssignHexString(&bignum, "0"); - bignum.ShiftLeft(100); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("0", buffer)); - - AssignHexString(&bignum, "1"); - bignum.ShiftLeft(1); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("2", buffer)); - - AssignHexString(&bignum, "1"); - bignum.ShiftLeft(4); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("10", buffer)); - - AssignHexString(&bignum, "1"); - bignum.ShiftLeft(32); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("100000000", buffer)); - - AssignHexString(&bignum, "1"); - bignum.ShiftLeft(64); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("10000000000000000", buffer)); - - AssignHexString(&bignum, "123456789ABCDEF"); - bignum.ShiftLeft(64); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("123456789ABCDEF0000000000000000", buffer)); - bignum.ShiftLeft(1); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("2468ACF13579BDE0000000000000000", buffer)); -} - - -TEST(AddUInt64) { - char buffer[kBufferSize]; - Bignum bignum; - AssignHexString(&bignum, "0"); - bignum.AddUInt64(0xA); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("A", buffer)); - - AssignHexString(&bignum, "1"); - bignum.AddUInt64(0xA); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("B", buffer)); - - AssignHexString(&bignum, "1"); - bignum.AddUInt64(0x100); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("101", buffer)); - - AssignHexString(&bignum, "1"); - bignum.AddUInt64(0xFFFF); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("10000", buffer)); - - AssignHexString(&bignum, "FFFFFFF"); - bignum.AddUInt64(0x1); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("10000000", buffer)); - - AssignHexString(&bignum, "10000000000000000000000000000000000000000000"); - bignum.AddUInt64(0xFFFF); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1000000000000000000000000000000000000000FFFF", buffer)); - - AssignHexString(&bignum, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"); - bignum.AddUInt64(0x1); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("100000000000000000000000000000000000000000000", buffer)); - - bignum.AssignUInt16(0x1); - bignum.ShiftLeft(100); - bignum.AddUInt64(1); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("10000000000000000000000001", buffer)); - - bignum.AssignUInt16(0x1); - bignum.ShiftLeft(100); - bignum.AddUInt64(0xFFFF); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1000000000000000000000FFFF", buffer)); - - AssignHexString(&bignum, "0"); - bignum.AddUInt64(0xA'0000'0000); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("A00000000", buffer)); - - AssignHexString(&bignum, "1"); - bignum.AddUInt64(0xA'0000'0000); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("A00000001", buffer)); - - AssignHexString(&bignum, "1"); - bignum.AddUInt64(0x100'0000'0000); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("10000000001", buffer)); - - AssignHexString(&bignum, "1"); - bignum.AddUInt64(0xFFFF'0000'0000); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("FFFF00000001", buffer)); - - AssignHexString(&bignum, "FFFFFFF"); - bignum.AddUInt64(0x1'0000'0000); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("10FFFFFFF", buffer)); - - AssignHexString(&bignum, "10000000000000000000000000000000000000000000"); - bignum.AddUInt64(0xFFFF'0000'0000); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("10000000000000000000000000000000FFFF00000000", buffer)); - - AssignHexString(&bignum, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"); - bignum.AddUInt64(0x1'0000'0000); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1000000000000000000000000000000000000FFFFFFFF", buffer)); - - bignum.AssignUInt16(0x1); - bignum.ShiftLeft(100); - bignum.AddUInt64(0x1'0000'0000); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("10000000000000000100000000", buffer)); - - bignum.AssignUInt16(0x1); - bignum.ShiftLeft(100); - bignum.AddUInt64(0xFFFF'0000'0000); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("10000000000000FFFF00000000", buffer)); -} - - -TEST(AddBignum) { - char buffer[kBufferSize]; - Bignum bignum; - Bignum other; - - AssignHexString(&other, "1"); - AssignHexString(&bignum, "0"); - bignum.AddBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1", buffer)); - - AssignHexString(&bignum, "1"); - bignum.AddBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("2", buffer)); - - AssignHexString(&bignum, "FFFFFFF"); - bignum.AddBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("10000000", buffer)); - - AssignHexString(&bignum, "FFFFFFFFFFFFFF"); - bignum.AddBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("100000000000000", buffer)); - - AssignHexString(&bignum, "10000000000000000000000000000000000000000000"); - bignum.AddBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("10000000000000000000000000000000000000000001", buffer)); - - AssignHexString(&other, "1000000000000"); - - AssignHexString(&bignum, "1"); - bignum.AddBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1000000000001", buffer)); - - AssignHexString(&bignum, "FFFFFFF"); - bignum.AddBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("100000FFFFFFF", buffer)); - - AssignHexString(&bignum, "10000000000000000000000000000000000000000000"); - bignum.AddBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("10000000000000000000000000000001000000000000", buffer)); - - AssignHexString(&bignum, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"); - bignum.AddBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1000000000000000000000000000000FFFFFFFFFFFF", buffer)); - - bignum.AssignUInt16(0x1); - bignum.ShiftLeft(100); - bignum.AddBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("10000000000001000000000000", buffer)); - - other.ShiftLeft(64); - // other == "10000000000000000000000000000" - - bignum.AssignUInt16(0x1); - bignum.AddBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("10000000000000000000000000001", buffer)); - - AssignHexString(&bignum, "FFFFFFF"); - bignum.AddBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1000000000000000000000FFFFFFF", buffer)); - - AssignHexString(&bignum, "10000000000000000000000000000000000000000000"); - bignum.AddBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("10000000000000010000000000000000000000000000", buffer)); - - AssignHexString(&bignum, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"); - bignum.AddBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("100000000000000FFFFFFFFFFFFFFFFFFFFFFFFFFFF", buffer)); - - bignum.AssignUInt16(0x1); - bignum.ShiftLeft(100); - bignum.AddBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("10010000000000000000000000000", buffer)); -} - - -TEST(SubtractBignum) { - char buffer[kBufferSize]; - Bignum bignum; - Bignum other; - - AssignHexString(&bignum, "1"); - AssignHexString(&other, "0"); - bignum.SubtractBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1", buffer)); - - AssignHexString(&bignum, "2"); - AssignHexString(&other, "0"); - bignum.SubtractBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("2", buffer)); - - AssignHexString(&bignum, "10000000"); - AssignHexString(&other, "1"); - bignum.SubtractBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("FFFFFFF", buffer)); - - AssignHexString(&bignum, "100000000000000"); - AssignHexString(&other, "1"); - bignum.SubtractBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("FFFFFFFFFFFFFF", buffer)); - - AssignHexString(&bignum, "10000000000000000000000000000000000000000001"); - AssignHexString(&other, "1"); - bignum.SubtractBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("10000000000000000000000000000000000000000000", buffer)); - - AssignHexString(&bignum, "1000000000001"); - AssignHexString(&other, "1000000000000"); - bignum.SubtractBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1", buffer)); - - AssignHexString(&bignum, "100000FFFFFFF"); - AssignHexString(&other, "1000000000000"); - bignum.SubtractBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("FFFFFFF", buffer)); - - AssignHexString(&bignum, "10000000000000000000000000000001000000000000"); - AssignHexString(&other, "1000000000000"); - bignum.SubtractBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("10000000000000000000000000000000000000000000", buffer)); - - AssignHexString(&bignum, "1000000000000000000000000000000FFFFFFFFFFFF"); - AssignHexString(&other, "1000000000000"); - bignum.SubtractBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", buffer)); - - bignum.AssignUInt16(0x1); - bignum.ShiftLeft(100); - // "10 0000 0000 0000 0000 0000 0000" - AssignHexString(&other, "1000000000000"); - bignum.SubtractBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("FFFFFFFFFFFFF000000000000", buffer)); - - AssignHexString(&other, "1000000000000"); - other.ShiftLeft(48); - // other == "1000000000000000000000000" - - bignum.AssignUInt16(0x1); - bignum.ShiftLeft(100); - // bignum == "10000000000000000000000000" - bignum.SubtractBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("F000000000000000000000000", buffer)); - - other.AssignUInt16(0x1); - other.ShiftLeft(35); - // other == "800000000" - AssignHexString(&bignum, "FFFFFFF"); - bignum.ShiftLeft(60); - // bignum = FFFFFFF000000000000000 - bignum.SubtractBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("FFFFFFEFFFFFF800000000", buffer)); - - AssignHexString(&bignum, "10000000000000000000000000000000000000000000"); - bignum.SubtractBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF800000000", buffer)); - - AssignHexString(&bignum, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"); - bignum.SubtractBignum(other); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFFF", buffer)); -} - - -TEST(MultiplyUInt32) { - char buffer[kBufferSize]; - Bignum bignum; - - AssignHexString(&bignum, "0"); - bignum.MultiplyByUInt32(0x25); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("0", buffer)); - - AssignHexString(&bignum, "2"); - bignum.MultiplyByUInt32(0x5); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("A", buffer)); - - AssignHexString(&bignum, "10000000"); - bignum.MultiplyByUInt32(0x9); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("90000000", buffer)); - - AssignHexString(&bignum, "100000000000000"); - bignum.MultiplyByUInt32(0xFFFF); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("FFFF00000000000000", buffer)); - - AssignHexString(&bignum, "100000000000000"); - bignum.MultiplyByUInt32(0xFFFFFFFF); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("FFFFFFFF00000000000000", buffer)); - - AssignHexString(&bignum, "1234567ABCD"); - bignum.MultiplyByUInt32(0xFFF); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("12333335552433", buffer)); - - AssignHexString(&bignum, "1234567ABCD"); - bignum.MultiplyByUInt32(0xFFFFFFF); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("12345679998A985433", buffer)); - - AssignHexString(&bignum, "FFFFFFFFFFFFFFFF"); - bignum.MultiplyByUInt32(0x2); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1FFFFFFFFFFFFFFFE", buffer)); - - AssignHexString(&bignum, "FFFFFFFFFFFFFFFF"); - bignum.MultiplyByUInt32(0x4); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("3FFFFFFFFFFFFFFFC", buffer)); - - AssignHexString(&bignum, "FFFFFFFFFFFFFFFF"); - bignum.MultiplyByUInt32(0xF); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("EFFFFFFFFFFFFFFF1", buffer)); - - AssignHexString(&bignum, "FFFFFFFFFFFFFFFF"); - bignum.MultiplyByUInt32(0xFFFFFF); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("FFFFFEFFFFFFFFFF000001", buffer)); - - bignum.AssignUInt16(0x1); - bignum.ShiftLeft(100); - // "10 0000 0000 0000 0000 0000 0000" - bignum.MultiplyByUInt32(2); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("20000000000000000000000000", buffer)); - - bignum.AssignUInt16(0x1); - bignum.ShiftLeft(100); - // "10 0000 0000 0000 0000 0000 0000" - bignum.MultiplyByUInt32(0xF); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("F0000000000000000000000000", buffer)); - - bignum.AssignUInt16(0xFFFF); - bignum.ShiftLeft(100); - // "FFFF0 0000 0000 0000 0000 0000 0000" - bignum.MultiplyByUInt32(0xFFFF); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("FFFE00010000000000000000000000000", buffer)); - - bignum.AssignUInt16(0xFFFF); - bignum.ShiftLeft(100); - // "FFFF0 0000 0000 0000 0000 0000 0000" - bignum.MultiplyByUInt32(0xFFFFFFFF); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("FFFEFFFF00010000000000000000000000000", buffer)); - - bignum.AssignUInt16(0xFFFF); - bignum.ShiftLeft(100); - // "FFFF0 0000 0000 0000 0000 0000 0000" - bignum.MultiplyByUInt32(0xFFFFFFFF); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("FFFEFFFF00010000000000000000000000000", buffer)); - - AssignDecimalString(&bignum, "15611230384529777"); - bignum.MultiplyByUInt32(10000000); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("210EDD6D4CDD2580EE80", buffer)); -} - - -TEST(MultiplyUInt64) { - char buffer[kBufferSize]; - Bignum bignum; - - AssignHexString(&bignum, "0"); - bignum.MultiplyByUInt64(0x25); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("0", buffer)); - - AssignHexString(&bignum, "2"); - bignum.MultiplyByUInt64(0x5); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("A", buffer)); - - AssignHexString(&bignum, "10000000"); - bignum.MultiplyByUInt64(0x9); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("90000000", buffer)); - - AssignHexString(&bignum, "100000000000000"); - bignum.MultiplyByUInt64(0xFFFF); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("FFFF00000000000000", buffer)); - - AssignHexString(&bignum, "100000000000000"); - bignum.MultiplyByUInt64(0xFFFF'FFFF'FFFF'FFFF); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("FFFFFFFFFFFFFFFF00000000000000", buffer)); - - AssignHexString(&bignum, "1234567ABCD"); - bignum.MultiplyByUInt64(0xFFF); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("12333335552433", buffer)); - - AssignHexString(&bignum, "1234567ABCD"); - bignum.MultiplyByUInt64(0xFF'FFFF'FFFF); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1234567ABCBDCBA985433", buffer)); - - AssignHexString(&bignum, "FFFFFFFFFFFFFFFF"); - bignum.MultiplyByUInt64(0x2); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1FFFFFFFFFFFFFFFE", buffer)); - - AssignHexString(&bignum, "FFFFFFFFFFFFFFFF"); - bignum.MultiplyByUInt64(0x4); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("3FFFFFFFFFFFFFFFC", buffer)); - - AssignHexString(&bignum, "FFFFFFFFFFFFFFFF"); - bignum.MultiplyByUInt64(0xF); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("EFFFFFFFFFFFFFFF1", buffer)); - - AssignHexString(&bignum, "FFFFFFFFFFFFFFFF"); - bignum.MultiplyByUInt64(0xFFFF'FFFF'FFFF'FFFF); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("FFFFFFFFFFFFFFFE0000000000000001", buffer)); - - bignum.AssignUInt16(0x1); - bignum.ShiftLeft(100); - // "10 0000 0000 0000 0000 0000 0000" - bignum.MultiplyByUInt64(2); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("20000000000000000000000000", buffer)); - - bignum.AssignUInt16(0x1); - bignum.ShiftLeft(100); - // "10 0000 0000 0000 0000 0000 0000" - bignum.MultiplyByUInt64(0xF); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("F0000000000000000000000000", buffer)); - - bignum.AssignUInt16(0xFFFF); - bignum.ShiftLeft(100); - // "FFFF0 0000 0000 0000 0000 0000 0000" - bignum.MultiplyByUInt64(0xFFFF); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("FFFE00010000000000000000000000000", buffer)); - - bignum.AssignUInt16(0xFFFF); - bignum.ShiftLeft(100); - // "FFFF0 0000 0000 0000 0000 0000 0000" - bignum.MultiplyByUInt64(0xFFFFFFFF); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("FFFEFFFF00010000000000000000000000000", buffer)); - - bignum.AssignUInt16(0xFFFF); - bignum.ShiftLeft(100); - // "FFFF0 0000 0000 0000 0000 0000 0000" - bignum.MultiplyByUInt64(0xFFFF'FFFF'FFFF'FFFF); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("FFFEFFFFFFFFFFFF00010000000000000000000000000", buffer)); - - AssignDecimalString(&bignum, "15611230384529777"); - bignum.MultiplyByUInt64(0x8AC7'2304'89E8'0000); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1E10EE4B11D15A7F3DE7F3C7680000", buffer)); -} - - -TEST(MultiplyPowerOfTen) { - char buffer[kBufferSize]; - Bignum bignum; - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(1); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("3034", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(2); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1E208", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(3); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("12D450", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(4); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("BC4B20", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(5); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("75AEF40", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(6); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("498D5880", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(7); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("2DF857500", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(8); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1CBB369200", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(9); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("11F5021B400", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(10); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("B3921510800", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(11); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("703B4D2A5000", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(12); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("4625103A72000", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(13); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("2BD72A24874000", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(14); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1B667A56D488000", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(15); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("11200C7644D50000", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(16); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("AB407C9EB0520000", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(17); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("6B084DE32E3340000", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(18); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("42E530ADFCE0080000", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(19); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("29CF3E6CBE0C0500000", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(20); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1A218703F6C783200000", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(21); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1054F4627A3CB1F400000", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(22); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("A3518BD8C65EF38800000", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(23); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("6612F7677BFB5835000000", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(24); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("3FCBDAA0AD7D17212000000", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(25); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("27DF68A46C6E2E74B4000000", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(26); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("18EBA166C3C4DD08F08000000", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(27); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("F9344E03A5B0A259650000000", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(28); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("9BC0B0C2478E6577DF20000000", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(29); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("61586E796CB8FF6AEB740000000", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(30); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("3CD7450BE3F39FA2D32880000000", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(31); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("26068B276E7843C5C3F9500000000", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(50); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("149D1B4CFED03B23AB5F4E1196EF45C08000000000000", buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(100); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, - strcmp( - "5827249F27165024FBC47DFCA9359BF316332D1B91ACEECF471FBAB06D9B2" - "0000000000000000000000000", - buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(200); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, - strcmp( - "64C1F5C06C3816AFBF8DAFD5A3D756365BB0FD020E6F084E759C1F7C99E4F" - "55B9ACC667CEC477EB958C2AEEB3C6C19BA35A1AD30B35C51EB72040920000" - "0000000000000000000000000000000000000000000000", - buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(500); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, - strcmp( - "96741A625EB5D7C91039FEB5C5ACD6D9831EDA5B083D800E6019442C8C8223" - "3EAFB3501FE2058062221E15121334928880827DEE1EC337A8B26489F3A40A" - "CB440A2423734472D10BFCE886F41B3AF9F9503013D86D088929CA86EEB4D8" - "B9C831D0BD53327B994A0326227CFD0ECBF2EB48B02387AAE2D4CCCDF1F1A1" - "B8CC4F1FA2C56AD40D0E4DAA9C28CDBF0A549098EA13200000000000000000" - "00000000000000000000000000000000000000000000000000000000000000" - "0000000000000000000000000000000000000000000000", - buffer)); - - AssignDecimalString(&bignum, "1234"); - bignum.MultiplyByPowerOfTen(1000); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, - strcmp( - "1258040F99B1CD1CC9819C676D413EA50E4A6A8F114BB0C65418C62D399B81" - "6361466CA8E095193E1EE97173553597C96673AF67FAFE27A66E7EF2E5EF2E" - "E3F5F5070CC17FE83BA53D40A66A666A02F9E00B0E11328D2224B8694C7372" - "F3D536A0AD1985911BD361496F268E8B23112500EAF9B88A9BC67B2AB04D38" - "7FEFACD00F5AF4F764F9ABC3ABCDE54612DE38CD90CB6647CA389EA0E86B16" - "BF7A1F34086E05ADBE00BD1673BE00FAC4B34AF1091E8AD50BA675E0381440" - "EA8E9D93E75D816BAB37C9844B1441C38FC65CF30ABB71B36433AF26DD97BD" - "ABBA96C03B4919B8F3515B92826B85462833380DC193D79F69D20DD6038C99" - "6114EF6C446F0BA28CC772ACBA58B81C04F8FFDE7B18C4E5A3ABC51E637FDF" - "6E37FDFF04C940919390F4FF92000000000000000000000000000000000000" - "00000000000000000000000000000000000000000000000000000000000000" - "00000000000000000000000000000000000000000000000000000000000000" - "00000000000000000000000000000000000000000000000000000000000000" - "0000000000000000000000000000", - buffer)); - - Bignum bignum2; - AssignHexString(&bignum2, "3DA774C07FB5DF54284D09C675A492165B830D5DAAEB2A7501" - "DA17CF9DFA1CA2282269F92A25A97314296B717E3DCBB9FE17" - "41A842FE2913F540F40796F2381155763502C58B15AF7A7F88" - "6F744C9164FF409A28F7FA0C41F89ED79C1BE9F322C8578B97" - "841F1CBAA17D901BE1230E3C00E1C643AF32638B5674E01FEA" - "96FC90864E621B856A9E1CE56E6EB545B9C2F8F0CC10DDA88D" - "CC6D282605F8DB67044F2DFD3695E7BA63877AE16701536AE6" - "567C794D0BFE338DFBB42D92D4215AF3BB22BF0A8B283FDDC2" - "C667A10958EA6D2"); - CHECK(bignum2.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp( - "3DA774C07FB5DF54284D09C675A492165B830D5DAAEB2A7501" - "DA17CF9DFA1CA2282269F92A25A97314296B717E3DCBB9FE17" - "41A842FE2913F540F40796F2381155763502C58B15AF7A7F88" - "6F744C9164FF409A28F7FA0C41F89ED79C1BE9F322C8578B97" - "841F1CBAA17D901BE1230E3C00E1C643AF32638B5674E01FEA" - "96FC90864E621B856A9E1CE56E6EB545B9C2F8F0CC10DDA88D" - "CC6D282605F8DB67044F2DFD3695E7BA63877AE16701536AE6" - "567C794D0BFE338DFBB42D92D4215AF3BB22BF0A8B283FDDC2" - "C667A10958EA6D2", - buffer)); - - bignum.AssignBignum(bignum2); - bignum.MultiplyByPowerOfTen(1); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, - strcmp( - "2688A8F84FD1AB949930261C0986DB4DF931E85A8AD2FA8921284EE1C2BC51" - "E55915823BBA5789E7EC99E326EEE69F543ECE890929DED9AC79489884BE57" - "630AD569E121BB76ED8DAC8FB545A8AFDADF1F8860599AFC47A93B6346C191" - "7237F5BD36B73EB29371F4A4EE7A116CB5E8E5808D1BEA4D7F7E3716090C13" - "F29E5DDA53F0FD513362A2D20F6505314B9419DB967F8A8A89589FC43917C3" - "BB892062B17CBE421DB0D47E34ACCCE060D422CFF60DCBD0277EE038BD509C" - "7BC494D8D854F5B76696F927EA99BC00C4A5D7928434", - buffer)); - - bignum.AssignBignum(bignum2); - bignum.MultiplyByPowerOfTen(2); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, - strcmp( - "1815699B31E30B3CDFBE17D185F44910BBBF313896C3DC95B4B9314D19B5B32" - "F57AD71655476B630F3E02DF855502394A74115A5BA2B480BCBCD5F52F6F69D" - "E6C5622CB5152A54788BD9D14B896DE8CB73B53C3800DDACC9C51E0C38FAE76" - "2F9964232872F9C2738E7150C4AE3F1B18F70583172706FAEE26DC5A78C77A2" - "FAA874769E52C01DA5C3499F233ECF3C90293E0FB69695D763DAA3AEDA5535B" - "43DAEEDF6E9528E84CEE0EC000C3C8495C1F9C89F6218AF4C23765261CD5ADD" - "0787351992A01E5BB8F2A015807AE7A6BB92A08", - buffer)); - - bignum.AssignBignum(bignum2); - bignum.MultiplyByPowerOfTen(5); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, - strcmp( - "5E13A4863ADEE3E5C9FE8D0A73423D695D62D8450CED15A8C9F368952C6DC3" - "F0EE7D82F3D1EFB7AF38A3B3920D410AFCAD563C8F5F39116E141A3C5C14B3" - "58CD73077EA35AAD59F6E24AD98F10D5555ABBFBF33AC361EAF429FD5FBE94" - "17DA9EF2F2956011F9F93646AA38048A681D984ED88127073443247CCC167C" - "B354A32206EF5A733E73CF82D795A1AD598493211A6D613C39515E0E0F6304" - "DCD9C810F3518C7F6A7CB6C81E99E02FCC65E8FDB7B7AE97306CC16A8631CE" - "0A2AEF6568276BE4C176964A73C153FDE018E34CB4C2F40", - buffer)); - - bignum.AssignBignum(bignum2); - bignum.MultiplyByPowerOfTen(10); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, - strcmp( - "8F8CB8EB51945A7E815809F6121EF2F4E61EF3405CD9432CAD2709749EEAFD" - "1B81E843F14A3667A7BDCCC9E0BB795F63CDFDB62844AC7438976C885A0116" - "29607DA54F9C023CC366570B7637ED0F855D931752038A614922D0923E382C" - "B8E5F6C975672DB76E0DE471937BB9EDB11E28874F1C122D5E1EF38CECE9D0" - "0723056BCBD4F964192B76830634B1D322B7EB0062F3267E84F5C824343A77" - "4B7DCEE6DD464F01EBDC8C671BB18BB4EF4300A42474A6C77243F2A12B03BF" - "0443C38A1C0D2701EDB393135AE0DEC94211F9D4EB51F990800", - buffer)); - - bignum.AssignBignum(bignum2); - bignum.MultiplyByPowerOfTen(50); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, - strcmp( - "107A8BE345E24407372FC1DE442CBA696BC23C4FFD5B4BDFD9E5C39559815" - "86628CF8472D2D589F2FC2BAD6E0816EC72CBF85CCA663D8A1EC6C51076D8" - "2D247E6C26811B7EC4D4300FB1F91028DCB7B2C4E7A60C151161AA7E65E79" - "B40917B12B2B5FBE7745984D4E8EFA31F9AE6062427B068B144A9CB155873" - "E7C0C9F0115E5AC72DC5A73C4796DB970BF9205AB8C77A6996EB1B417F9D1" - "6232431E6313C392203601B9C22CC10DDA88DCC6D282605F8DB67044F2DFD" - "3695E7BA63877AE16701536AE6567C794D0BFE338DFBB42D924CF964BD2C0" - "F586E03A2FCD35A408000000000000", - buffer)); - - bignum.AssignBignum(bignum2); - bignum.MultiplyByPowerOfTen(100); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, - strcmp( - "46784A90ACD0ED3E7759CC585FB32D36EB6034A6F78D92604E3BAA5ED3D8B" - "6E60E854439BE448897FB4B7EA5A3D873AA0FCB3CFFD80D0530880E45F511" - "722A50CE7E058B5A6F5464DB7500E34984EE3202A9441F44FA1554C0CEA96" - "B438A36F25E7C9D56D71AE2CD313EC37534DA299AC0854FC48591A7CF3171" - "31265AA4AE62DE32344CE7BEEEF894AE686A2DAAFE5D6D9A10971FFD9C064" - "5079B209E1048F58B5192D41D84336AC4C8C489EEF00939CFC9D55C122036" - "01B9C22CC10DDA88DCC6D282605F8DB67044F2DFD3695E7BA3F67B96D3A32" - "E11FB5561B68744C4035B0800DC166D49D98E3FD1D5BB2000000000000000" - "0000000000", - buffer)); - - bignum.AssignBignum(bignum2); - bignum.MultiplyByPowerOfTen(200); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, - strcmp( - "508BD351221DF139D72D88CDC0416845A53EE2D0E6B98352509A9AC312F8C" - "6CB1A144889416201E0B6CE66EA3EBE259B5FD79ECFC1FD77963CE516CC7E" - "2FE73D4B5B710C19F6BCB092C7A2FD76286543B8DBD2C596DFF2C896720BA" - "DFF7BC9C366ACEA3A880AEC287C5E6207DF2739B5326FC19D773BD830B109" - "ED36C7086544BF8FDB9D4B73719C2B5BC2F571A5937EC46876CD428281F6B" - "F287E1E07F25C1B1D46BC37324FF657A8B2E0071DB83B86123CA34004F406" - "001082D7945E90C6E8C9A9FEC2B44BE0DDA46E9F52B152E4D1336D2FCFBC9" - "96E30CA0082256737365158FE36482AA7EB9DAF2AB128F10E7551A3CD5BE6" - "0A922F3A7D5EED38B634A7EC95BCF7021BA6820A292000000000000000000" - "00000000000000000000000000000000", - buffer)); - - bignum.AssignBignum(bignum2); - bignum.MultiplyByPowerOfTen(500); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, - strcmp( - "7845F900E475B5086885BAAAE67C8E85185ACFE4633727F82A4B06B5582AC" - "BE933C53357DA0C98C20C5AC900C4D76A97247DF52B79F48F9E35840FB715" - "D392CE303E22622B0CF82D9471B398457DD3196F639CEE8BBD2C146873841" - "F0699E6C41F04FC7A54B48CEB995BEB6F50FE81DE9D87A8D7F849CC523553" - "7B7BBBC1C7CAAFF6E9650BE03B308C6D31012AEF9580F70D3EE2083ADE126" - "8940FA7D6308E239775DFD2F8C97FF7EBD525DAFA6512216F7047A62A93DC" - "38A0165BDC67E250DCC96A0181DE935A70B38704DC71819F02FC5261FF7E1" - "E5F11907678B0A3E519FF4C10A867B0C26CE02BE6960BA8621A87303C101C" - "3F88798BB9F7739655946F8B5744E6B1EAF10B0C5621330F0079209033C69" - "20DE2E2C8D324F0624463735D482BF291926C22A910F5B80FA25170B6B57D" - "8D5928C7BCA3FE87461275F69BD5A1B83181DAAF43E05FC3C72C4E93111B6" - "6205EBF49B28FEDFB7E7526CBDA658A332000000000000000000000000000" - "0000000000000000000000000000000000000000000000000000000000000" - "0000000000000000000000000000000000000", - buffer)); -} - - -TEST(DivideModuloIntBignum) { - char buffer[kBufferSize]; - Bignum bignum; - Bignum other; - Bignum third; - - bignum.AssignUInt16(10); - other.AssignUInt16(2); - CHECK_EQ(5, bignum.DivideModuloIntBignum(other)); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("0", buffer)); - - bignum.AssignUInt16(10); - bignum.ShiftLeft(500); - other.AssignUInt16(2); - other.ShiftLeft(500); - CHECK_EQ(5, bignum.DivideModuloIntBignum(other)); - CHECK_EQ(0, strcmp("0", buffer)); - - bignum.AssignUInt16(11); - other.AssignUInt16(2); - CHECK_EQ(5, bignum.DivideModuloIntBignum(other)); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1", buffer)); - - bignum.AssignUInt16(10); - bignum.ShiftLeft(500); - other.AssignUInt16(1); - bignum.AddBignum(other); - other.AssignUInt16(2); - other.ShiftLeft(500); - CHECK_EQ(5, bignum.DivideModuloIntBignum(other)); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1", buffer)); - - bignum.AssignUInt16(10); - bignum.ShiftLeft(500); - other.AssignBignum(bignum); - bignum.MultiplyByUInt32(0x1234); - third.AssignUInt16(0xFFF); - bignum.AddBignum(third); - CHECK_EQ(0x1234, bignum.DivideModuloIntBignum(other)); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("FFF", buffer)); - - bignum.AssignUInt16(10); - AssignHexString(&other, "1234567890"); - CHECK_EQ(0, bignum.DivideModuloIntBignum(other)); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("A", buffer)); - - AssignHexString(&bignum, "12345678"); - AssignHexString(&other, "3789012"); - CHECK_EQ(5, bignum.DivideModuloIntBignum(other)); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("D9861E", buffer)); - - AssignHexString(&bignum, "70000001"); - AssignHexString(&other, "1FFFFFFF"); - CHECK_EQ(3, bignum.DivideModuloIntBignum(other)); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("10000004", buffer)); - - AssignHexString(&bignum, "28000000"); - AssignHexString(&other, "12A05F20"); - CHECK_EQ(2, bignum.DivideModuloIntBignum(other)); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("2BF41C0", buffer)); - - bignum.AssignUInt16(10); - bignum.ShiftLeft(500); - other.AssignBignum(bignum); - bignum.MultiplyByUInt32(0x1234); - third.AssignUInt16(0xFFF); - other.SubtractBignum(third); - CHECK_EQ(0x1234, bignum.DivideModuloIntBignum(other)); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1232DCC", buffer)); - CHECK_EQ(0, bignum.DivideModuloIntBignum(other)); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1232DCC", buffer)); -} - - -TEST(Compare) { - Bignum bignum1; - Bignum bignum2; - bignum1.AssignUInt16(1); - bignum2.AssignUInt16(1); - CHECK_EQ(0, Bignum::Compare(bignum1, bignum2)); - CHECK(Bignum::Equal(bignum1, bignum2)); - CHECK(Bignum::LessEqual(bignum1, bignum2)); - CHECK(!Bignum::Less(bignum1, bignum2)); - - bignum1.AssignUInt16(0); - bignum2.AssignUInt16(1); - CHECK_EQ(-1, Bignum::Compare(bignum1, bignum2)); - CHECK_EQ(+1, Bignum::Compare(bignum2, bignum1)); - CHECK(!Bignum::Equal(bignum1, bignum2)); - CHECK(!Bignum::Equal(bignum2, bignum1)); - CHECK(Bignum::LessEqual(bignum1, bignum2)); - CHECK(!Bignum::LessEqual(bignum2, bignum1)); - CHECK(Bignum::Less(bignum1, bignum2)); - CHECK(!Bignum::Less(bignum2, bignum1)); - - AssignHexString(&bignum1, "1234567890ABCDEF12345"); - AssignHexString(&bignum2, "1234567890ABCDEF12345"); - CHECK_EQ(0, Bignum::Compare(bignum1, bignum2)); - - AssignHexString(&bignum1, "1234567890ABCDEF12345"); - AssignHexString(&bignum2, "1234567890ABCDEF12346"); - CHECK_EQ(-1, Bignum::Compare(bignum1, bignum2)); - CHECK_EQ(+1, Bignum::Compare(bignum2, bignum1)); - - AssignHexString(&bignum1, "1234567890ABCDEF12345"); - bignum1.ShiftLeft(500); - AssignHexString(&bignum2, "1234567890ABCDEF12345"); - bignum2.ShiftLeft(500); - CHECK_EQ(0, Bignum::Compare(bignum1, bignum2)); - - AssignHexString(&bignum1, "1234567890ABCDEF12345"); - bignum1.ShiftLeft(500); - AssignHexString(&bignum2, "1234567890ABCDEF12346"); - bignum2.ShiftLeft(500); - CHECK_EQ(-1, Bignum::Compare(bignum1, bignum2)); - CHECK_EQ(+1, Bignum::Compare(bignum2, bignum1)); - - bignum1.AssignUInt16(1); - bignum1.ShiftLeft(64); - AssignHexString(&bignum2, "10000000000000000"); - CHECK_EQ(0, Bignum::Compare(bignum1, bignum2)); - CHECK_EQ(0, Bignum::Compare(bignum2, bignum1)); - - bignum1.AssignUInt16(1); - bignum1.ShiftLeft(64); - AssignHexString(&bignum2, "10000000000000001"); - CHECK_EQ(-1, Bignum::Compare(bignum1, bignum2)); - CHECK_EQ(+1, Bignum::Compare(bignum2, bignum1)); - - bignum1.AssignUInt16(1); - bignum1.ShiftLeft(96); - AssignHexString(&bignum2, "10000000000000001"); - bignum2.ShiftLeft(32); - CHECK_EQ(-1, Bignum::Compare(bignum1, bignum2)); - CHECK_EQ(+1, Bignum::Compare(bignum2, bignum1)); - - AssignHexString(&bignum1, "FFFFFFFFFFFFFFFF"); - bignum2.AssignUInt16(1); - bignum2.ShiftLeft(64); - CHECK_EQ(-1, Bignum::Compare(bignum1, bignum2)); - CHECK_EQ(+1, Bignum::Compare(bignum2, bignum1)); - - AssignHexString(&bignum1, "FFFFFFFFFFFFFFFF"); - bignum1.ShiftLeft(32); - bignum2.AssignUInt16(1); - bignum2.ShiftLeft(96); - CHECK_EQ(-1, Bignum::Compare(bignum1, bignum2)); - CHECK_EQ(+1, Bignum::Compare(bignum2, bignum1)); - - AssignHexString(&bignum1, "FFFFFFFFFFFFFFFF"); - bignum1.ShiftLeft(32); - bignum2.AssignUInt16(1); - bignum2.ShiftLeft(95); - CHECK_EQ(+1, Bignum::Compare(bignum1, bignum2)); - CHECK_EQ(-1, Bignum::Compare(bignum2, bignum1)); - - AssignHexString(&bignum1, "FFFFFFFFFFFFFFFF"); - bignum1.ShiftLeft(32); - bignum2.AssignUInt16(1); - bignum2.ShiftLeft(100); - CHECK_EQ(-1, Bignum::Compare(bignum1, bignum2)); - CHECK_EQ(+1, Bignum::Compare(bignum2, bignum1)); - - AssignHexString(&bignum1, "100000000000000"); - bignum2.AssignUInt16(1); - bignum2.ShiftLeft(14*4); - CHECK_EQ(0, Bignum::Compare(bignum1, bignum2)); - CHECK_EQ(0, Bignum::Compare(bignum2, bignum1)); - - AssignHexString(&bignum1, "100000000000001"); - bignum2.AssignUInt16(1); - bignum2.ShiftLeft(14*4); - CHECK_EQ(+1, Bignum::Compare(bignum1, bignum2)); - CHECK_EQ(-1, Bignum::Compare(bignum2, bignum1)); - - AssignHexString(&bignum1, "200000000000000"); - bignum2.AssignUInt16(3); - bignum2.ShiftLeft(14*4); - CHECK_EQ(-1, Bignum::Compare(bignum1, bignum2)); - CHECK_EQ(+1, Bignum::Compare(bignum2, bignum1)); -} - - -TEST(PlusCompare) { - Bignum a; - Bignum b; - Bignum c; - a.AssignUInt16(1); - b.AssignUInt16(0); - c.AssignUInt16(1); - CHECK_EQ(0, Bignum::PlusCompare(a, b, c)); - CHECK(Bignum::PlusEqual(a, b, c)); - CHECK(Bignum::PlusLessEqual(a, b, c)); - CHECK(!Bignum::PlusLess(a, b, c)); - - a.AssignUInt16(0); - b.AssignUInt16(0); - c.AssignUInt16(1); - CHECK_EQ(-1, Bignum::PlusCompare(a, b, c)); - CHECK_EQ(+1, Bignum::PlusCompare(c, b, a)); - CHECK(!Bignum::PlusEqual(a, b, c)); - CHECK(!Bignum::PlusEqual(c, b, a)); - CHECK(Bignum::PlusLessEqual(a, b, c)); - CHECK(!Bignum::PlusLessEqual(c, b, a)); - CHECK(Bignum::PlusLess(a, b, c)); - CHECK(!Bignum::PlusLess(c, b, a)); - - AssignHexString(&a, "1234567890ABCDEF12345"); - b.AssignUInt16(1); - AssignHexString(&c, "1234567890ABCDEF12345"); - CHECK_EQ(+1, Bignum::PlusCompare(a, b, c)); - - AssignHexString(&a, "1234567890ABCDEF12344"); - b.AssignUInt16(1); - AssignHexString(&c, "1234567890ABCDEF12345"); - CHECK_EQ(0, Bignum::PlusCompare(a, b, c)); - - AssignHexString(&a, "1234567890"); - a.ShiftLeft(11*4); - AssignHexString(&b, "ABCDEF12345"); - AssignHexString(&c, "1234567890ABCDEF12345"); - CHECK_EQ(0, Bignum::PlusCompare(a, b, c)); - - AssignHexString(&a, "1234567890"); - a.ShiftLeft(11*4); - AssignHexString(&b, "ABCDEF12344"); - AssignHexString(&c, "1234567890ABCDEF12345"); - CHECK_EQ(-1, Bignum::PlusCompare(a, b, c)); - - AssignHexString(&a, "1234567890"); - a.ShiftLeft(11*4); - AssignHexString(&b, "ABCDEF12346"); - AssignHexString(&c, "1234567890ABCDEF12345"); - CHECK_EQ(1, Bignum::PlusCompare(a, b, c)); - - AssignHexString(&a, "1234567891"); - a.ShiftLeft(11*4); - AssignHexString(&b, "ABCDEF12345"); - AssignHexString(&c, "1234567890ABCDEF12345"); - CHECK_EQ(1, Bignum::PlusCompare(a, b, c)); - - AssignHexString(&a, "1234567889"); - a.ShiftLeft(11*4); - AssignHexString(&b, "ABCDEF12345"); - AssignHexString(&c, "1234567890ABCDEF12345"); - CHECK_EQ(-1, Bignum::PlusCompare(a, b, c)); - - AssignHexString(&a, "1234567890"); - a.ShiftLeft(11*4 + 32); - AssignHexString(&b, "ABCDEF12345"); - b.ShiftLeft(32); - AssignHexString(&c, "1234567890ABCDEF12345"); - c.ShiftLeft(32); - CHECK_EQ(0, Bignum::PlusCompare(a, b, c)); - - AssignHexString(&a, "1234567890"); - a.ShiftLeft(11*4 + 32); - AssignHexString(&b, "ABCDEF12344"); - b.ShiftLeft(32); - AssignHexString(&c, "1234567890ABCDEF12345"); - c.ShiftLeft(32); - CHECK_EQ(-1, Bignum::PlusCompare(a, b, c)); - - AssignHexString(&a, "1234567890"); - a.ShiftLeft(11*4 + 32); - AssignHexString(&b, "ABCDEF12346"); - b.ShiftLeft(32); - AssignHexString(&c, "1234567890ABCDEF12345"); - c.ShiftLeft(32); - CHECK_EQ(1, Bignum::PlusCompare(a, b, c)); - - AssignHexString(&a, "1234567891"); - a.ShiftLeft(11*4 + 32); - AssignHexString(&b, "ABCDEF12345"); - b.ShiftLeft(32); - AssignHexString(&c, "1234567890ABCDEF12345"); - c.ShiftLeft(32); - CHECK_EQ(1, Bignum::PlusCompare(a, b, c)); - - AssignHexString(&a, "1234567889"); - a.ShiftLeft(11*4 + 32); - AssignHexString(&b, "ABCDEF12345"); - b.ShiftLeft(32); - AssignHexString(&c, "1234567890ABCDEF12345"); - c.ShiftLeft(32); - CHECK_EQ(-1, Bignum::PlusCompare(a, b, c)); - - AssignHexString(&a, "1234567890"); - a.ShiftLeft(11*4 + 32); - AssignHexString(&b, "ABCDEF12345"); - b.ShiftLeft(32); - AssignHexString(&c, "1234567890ABCDEF1234500000000"); - CHECK_EQ(0, Bignum::PlusCompare(a, b, c)); - - AssignHexString(&a, "1234567890"); - a.ShiftLeft(11*4 + 32); - AssignHexString(&b, "ABCDEF12344"); - b.ShiftLeft(32); - AssignHexString(&c, "1234567890ABCDEF1234500000000"); - CHECK_EQ(-1, Bignum::PlusCompare(a, b, c)); - - AssignHexString(&a, "1234567890"); - a.ShiftLeft(11*4 + 32); - AssignHexString(&b, "ABCDEF12346"); - b.ShiftLeft(32); - AssignHexString(&c, "1234567890ABCDEF1234500000000"); - CHECK_EQ(1, Bignum::PlusCompare(a, b, c)); - - AssignHexString(&a, "1234567891"); - a.ShiftLeft(11*4 + 32); - AssignHexString(&b, "ABCDEF12345"); - b.ShiftLeft(32); - AssignHexString(&c, "1234567890ABCDEF1234500000000"); - CHECK_EQ(1, Bignum::PlusCompare(a, b, c)); - - AssignHexString(&a, "1234567889"); - a.ShiftLeft(11*4 + 32); - AssignHexString(&b, "ABCDEF12345"); - b.ShiftLeft(32); - AssignHexString(&c, "1234567890ABCDEF1234500000000"); - CHECK_EQ(-1, Bignum::PlusCompare(a, b, c)); - - AssignHexString(&a, "1234567890"); - a.ShiftLeft(11*4 + 32); - AssignHexString(&b, "ABCDEF12345"); - AssignHexString(&c, "123456789000000000ABCDEF12345"); - CHECK_EQ(0, Bignum::PlusCompare(a, b, c)); - - AssignHexString(&a, "1234567890"); - a.ShiftLeft(11*4 + 32); - AssignHexString(&b, "ABCDEF12346"); - AssignHexString(&c, "123456789000000000ABCDEF12345"); - CHECK_EQ(1, Bignum::PlusCompare(a, b, c)); - - AssignHexString(&a, "1234567890"); - a.ShiftLeft(11*4 + 32); - AssignHexString(&b, "ABCDEF12344"); - AssignHexString(&c, "123456789000000000ABCDEF12345"); - CHECK_EQ(-1, Bignum::PlusCompare(a, b, c)); - - AssignHexString(&a, "1234567890"); - a.ShiftLeft(11*4 + 32); - AssignHexString(&b, "ABCDEF12345"); - b.ShiftLeft(16); - AssignHexString(&c, "12345678900000ABCDEF123450000"); - CHECK_EQ(0, Bignum::PlusCompare(a, b, c)); - - AssignHexString(&a, "1234567890"); - a.ShiftLeft(11*4 + 32); - AssignHexString(&b, "ABCDEF12344"); - b.ShiftLeft(16); - AssignHexString(&c, "12345678900000ABCDEF123450000"); - CHECK_EQ(-1, Bignum::PlusCompare(a, b, c)); - - AssignHexString(&a, "1234567890"); - a.ShiftLeft(11*4 + 32); - AssignHexString(&b, "ABCDEF12345"); - b.ShiftLeft(16); - AssignHexString(&c, "12345678900000ABCDEF123450001"); - CHECK_EQ(-1, Bignum::PlusCompare(a, b, c)); - - AssignHexString(&a, "1234567890"); - a.ShiftLeft(11*4 + 32); - AssignHexString(&b, "ABCDEF12346"); - b.ShiftLeft(16); - AssignHexString(&c, "12345678900000ABCDEF123450000"); - CHECK_EQ(+1, Bignum::PlusCompare(a, b, c)); -} - - -TEST(Square) { - Bignum bignum; - char buffer[kBufferSize]; - - bignum.AssignUInt16(1); - bignum.Square(); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1", buffer)); - - bignum.AssignUInt16(2); - bignum.Square(); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("4", buffer)); - - bignum.AssignUInt16(10); - bignum.Square(); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("64", buffer)); - - AssignHexString(&bignum, "FFFFFFF"); - bignum.Square(); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("FFFFFFE0000001", buffer)); - - AssignHexString(&bignum, "FFFFFFFFFFFFFF"); - bignum.Square(); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("FFFFFFFFFFFFFE00000000000001", buffer)); -} - - -TEST(AssignPowerUInt16) { - Bignum bignum; - char buffer[kBufferSize]; - - bignum.AssignPowerUInt16(1, 0); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1", buffer)); - - bignum.AssignPowerUInt16(1, 1); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1", buffer)); - - bignum.AssignPowerUInt16(1, 2); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1", buffer)); - - bignum.AssignPowerUInt16(2, 0); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1", buffer)); - - bignum.AssignPowerUInt16(2, 1); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("2", buffer)); - - bignum.AssignPowerUInt16(2, 2); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("4", buffer)); - - bignum.AssignPowerUInt16(16, 1); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("10", buffer)); - - bignum.AssignPowerUInt16(16, 2); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("100", buffer)); - - bignum.AssignPowerUInt16(16, 5); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("100000", buffer)); - - bignum.AssignPowerUInt16(16, 8); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("100000000", buffer)); - - bignum.AssignPowerUInt16(16, 16); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("10000000000000000", buffer)); - - bignum.AssignPowerUInt16(16, 30); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1000000000000000000000000000000", buffer)); - - bignum.AssignPowerUInt16(10, 0); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1", buffer)); - - bignum.AssignPowerUInt16(10, 1); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("A", buffer)); - - bignum.AssignPowerUInt16(10, 2); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("64", buffer)); - - bignum.AssignPowerUInt16(10, 5); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("186A0", buffer)); - - bignum.AssignPowerUInt16(10, 8); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("5F5E100", buffer)); - - bignum.AssignPowerUInt16(10, 16); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("2386F26FC10000", buffer)); - - bignum.AssignPowerUInt16(10, 30); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("C9F2C9CD04674EDEA40000000", buffer)); - - bignum.AssignPowerUInt16(10, 31); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("7E37BE2022C0914B2680000000", buffer)); - - bignum.AssignPowerUInt16(2, 0); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1", buffer)); - - bignum.AssignPowerUInt16(2, 100); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("10000000000000000000000000", buffer)); - - bignum.AssignPowerUInt16(17, 0); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp("1", buffer)); - - bignum.AssignPowerUInt16(17, 99); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp( - "1942BB9853FAD924A3D4DD92B89B940E0207BEF05DB9C26BC1B757" - "80BE0C5A2C2990E02A681224F34ED68558CE4C6E33760931", - buffer)); - - bignum.AssignPowerUInt16(0xFFFF, 99); - CHECK(bignum.ToHexString(buffer, kBufferSize)); - CHECK_EQ(0, strcmp( - "FF9D12F09B886C54E77E7439C7D2DED2D34F669654C0C2B6B8C288250" - "5A2211D0E3DC9A61831349EAE674B11D56E3049D7BD79DAAD6C9FA2BA" - "528E3A794299F2EE9146A324DAFE3E88967A0358233B543E233E575B9" - "DD4E3AA7942146426C328FF55BFD5C45E0901B1629260AF9AE2F310C5" - "50959FAF305C30116D537D80CF6EBDBC15C5694062AF1AC3D956D0A41" - "B7E1B79FF11E21D83387A1CE1F5882B31E4B5D8DE415BDBE6854466DF" - "343362267A7E8833119D31D02E18DB5B0E8F6A64B0ED0D0062FFFF", - buffer)); -} - -} // namespace test_bignum -} // namespace base -} // namespace v8 diff --git a/test/unittests/BUILD.gn b/test/unittests/BUILD.gn index 95cf457042..db1cce1586 100644 --- a/test/unittests/BUILD.gn +++ b/test/unittests/BUILD.gn @@ -215,6 +215,7 @@ v8_source_set("unittests_sources") { "api/v8-object-unittest.cc", "base/address-region-unittest.cc", "base/atomic-utils-unittest.cc", + "base/bignum-unittest.cc", "base/bits-unittest.cc", "base/cpu-unittest.cc", "base/division-by-constant-unittest.cc", diff --git a/test/unittests/base/bignum-unittest.cc b/test/unittests/base/bignum-unittest.cc new file mode 100644 index 0000000000..9854049434 --- /dev/null +++ b/test/unittests/base/bignum-unittest.cc @@ -0,0 +1,1501 @@ +// Copyright 2022 the V8 project authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "src/base/numbers/bignum.h" + +#include + +#include "src/base/platform/platform.h" +#include "src/init/v8.h" +#include "test/unittests/test-utils.h" +#include "testing/gtest/include/gtest/gtest.h" + +namespace v8 { + +using BignumTest = ::testing::Test; + +namespace base { +namespace test_bignum { + +static const int kBufferSize = 1024; + +static void AssignHexString(Bignum* bignum, const char* str) { + bignum->AssignHexString(CStrVector(str)); +} + +static void AssignDecimalString(Bignum* bignum, const char* str) { + bignum->AssignDecimalString(CStrVector(str)); +} + +TEST_F(BignumTest, Assign) { + char buffer[kBufferSize]; + Bignum bignum; + Bignum bignum2; + bignum.AssignUInt16(0); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("0", buffer)); + bignum.AssignUInt16(0xA); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("A", buffer)); + bignum.AssignUInt16(0x20); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("20", buffer)); + + bignum.AssignUInt64(0); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("0", buffer)); + bignum.AssignUInt64(0xA); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("A", buffer)); + bignum.AssignUInt64(0x20); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("20", buffer)); + bignum.AssignUInt64(0x100); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("100", buffer)); + + // The first real test, since this will not fit into one bigit. + bignum.AssignUInt64(0x12345678); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("12345678", buffer)); + + uint64_t big = 0xFFFF'FFFF'FFFF'FFFF; + bignum.AssignUInt64(big); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("FFFFFFFFFFFFFFFF", buffer)); + + big = 0x1234'5678'9ABC'DEF0; + bignum.AssignUInt64(big); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("123456789ABCDEF0", buffer)); + + bignum2.AssignBignum(bignum); + EXPECT_TRUE(bignum2.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("123456789ABCDEF0", buffer)); + + AssignDecimalString(&bignum, "0"); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("0", buffer)); + + AssignDecimalString(&bignum, "1"); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1", buffer)); + + AssignDecimalString(&bignum, "1234567890"); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("499602D2", buffer)); + + AssignHexString(&bignum, "0"); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("0", buffer)); + + AssignHexString(&bignum, "123456789ABCDEF0"); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("123456789ABCDEF0", buffer)); +} + +TEST_F(BignumTest, ShiftLeft) { + char buffer[kBufferSize]; + Bignum bignum; + AssignHexString(&bignum, "0"); + bignum.ShiftLeft(100); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("0", buffer)); + + AssignHexString(&bignum, "1"); + bignum.ShiftLeft(1); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("2", buffer)); + + AssignHexString(&bignum, "1"); + bignum.ShiftLeft(4); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("10", buffer)); + + AssignHexString(&bignum, "1"); + bignum.ShiftLeft(32); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("100000000", buffer)); + + AssignHexString(&bignum, "1"); + bignum.ShiftLeft(64); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("10000000000000000", buffer)); + + AssignHexString(&bignum, "123456789ABCDEF"); + bignum.ShiftLeft(64); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("123456789ABCDEF0000000000000000", buffer)); + bignum.ShiftLeft(1); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("2468ACF13579BDE0000000000000000", buffer)); +} + +TEST_F(BignumTest, AddUInt64) { + char buffer[kBufferSize]; + Bignum bignum; + AssignHexString(&bignum, "0"); + bignum.AddUInt64(0xA); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("A", buffer)); + + AssignHexString(&bignum, "1"); + bignum.AddUInt64(0xA); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("B", buffer)); + + AssignHexString(&bignum, "1"); + bignum.AddUInt64(0x100); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("101", buffer)); + + AssignHexString(&bignum, "1"); + bignum.AddUInt64(0xFFFF); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("10000", buffer)); + + AssignHexString(&bignum, "FFFFFFF"); + bignum.AddUInt64(0x1); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("10000000", buffer)); + + AssignHexString(&bignum, "10000000000000000000000000000000000000000000"); + bignum.AddUInt64(0xFFFF); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1000000000000000000000000000000000000000FFFF", buffer)); + + AssignHexString(&bignum, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"); + bignum.AddUInt64(0x1); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("100000000000000000000000000000000000000000000", buffer)); + + bignum.AssignUInt16(0x1); + bignum.ShiftLeft(100); + bignum.AddUInt64(1); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("10000000000000000000000001", buffer)); + + bignum.AssignUInt16(0x1); + bignum.ShiftLeft(100); + bignum.AddUInt64(0xFFFF); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1000000000000000000000FFFF", buffer)); + + AssignHexString(&bignum, "0"); + bignum.AddUInt64(0xA'0000'0000); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("A00000000", buffer)); + + AssignHexString(&bignum, "1"); + bignum.AddUInt64(0xA'0000'0000); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("A00000001", buffer)); + + AssignHexString(&bignum, "1"); + bignum.AddUInt64(0x100'0000'0000); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("10000000001", buffer)); + + AssignHexString(&bignum, "1"); + bignum.AddUInt64(0xFFFF'0000'0000); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("FFFF00000001", buffer)); + + AssignHexString(&bignum, "FFFFFFF"); + bignum.AddUInt64(0x1'0000'0000); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("10FFFFFFF", buffer)); + + AssignHexString(&bignum, "10000000000000000000000000000000000000000000"); + bignum.AddUInt64(0xFFFF'0000'0000); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("10000000000000000000000000000000FFFF00000000", buffer)); + + AssignHexString(&bignum, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"); + bignum.AddUInt64(0x1'0000'0000); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1000000000000000000000000000000000000FFFFFFFF", buffer)); + + bignum.AssignUInt16(0x1); + bignum.ShiftLeft(100); + bignum.AddUInt64(0x1'0000'0000); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("10000000000000000100000000", buffer)); + + bignum.AssignUInt16(0x1); + bignum.ShiftLeft(100); + bignum.AddUInt64(0xFFFF'0000'0000); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("10000000000000FFFF00000000", buffer)); +} + +TEST_F(BignumTest, AddBignum) { + char buffer[kBufferSize]; + Bignum bignum; + Bignum other; + + AssignHexString(&other, "1"); + AssignHexString(&bignum, "0"); + bignum.AddBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1", buffer)); + + AssignHexString(&bignum, "1"); + bignum.AddBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("2", buffer)); + + AssignHexString(&bignum, "FFFFFFF"); + bignum.AddBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("10000000", buffer)); + + AssignHexString(&bignum, "FFFFFFFFFFFFFF"); + bignum.AddBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("100000000000000", buffer)); + + AssignHexString(&bignum, "10000000000000000000000000000000000000000000"); + bignum.AddBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("10000000000000000000000000000000000000000001", buffer)); + + AssignHexString(&other, "1000000000000"); + + AssignHexString(&bignum, "1"); + bignum.AddBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1000000000001", buffer)); + + AssignHexString(&bignum, "FFFFFFF"); + bignum.AddBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("100000FFFFFFF", buffer)); + + AssignHexString(&bignum, "10000000000000000000000000000000000000000000"); + bignum.AddBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("10000000000000000000000000000001000000000000", buffer)); + + AssignHexString(&bignum, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"); + bignum.AddBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1000000000000000000000000000000FFFFFFFFFFFF", buffer)); + + bignum.AssignUInt16(0x1); + bignum.ShiftLeft(100); + bignum.AddBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("10000000000001000000000000", buffer)); + + other.ShiftLeft(64); + // other == "10000000000000000000000000000" + + bignum.AssignUInt16(0x1); + bignum.AddBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("10000000000000000000000000001", buffer)); + + AssignHexString(&bignum, "FFFFFFF"); + bignum.AddBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1000000000000000000000FFFFFFF", buffer)); + + AssignHexString(&bignum, "10000000000000000000000000000000000000000000"); + bignum.AddBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("10000000000000010000000000000000000000000000", buffer)); + + AssignHexString(&bignum, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"); + bignum.AddBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("100000000000000FFFFFFFFFFFFFFFFFFFFFFFFFFFF", buffer)); + + bignum.AssignUInt16(0x1); + bignum.ShiftLeft(100); + bignum.AddBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("10010000000000000000000000000", buffer)); +} + +TEST_F(BignumTest, SubtractBignum) { + char buffer[kBufferSize]; + Bignum bignum; + Bignum other; + + AssignHexString(&bignum, "1"); + AssignHexString(&other, "0"); + bignum.SubtractBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1", buffer)); + + AssignHexString(&bignum, "2"); + AssignHexString(&other, "0"); + bignum.SubtractBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("2", buffer)); + + AssignHexString(&bignum, "10000000"); + AssignHexString(&other, "1"); + bignum.SubtractBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("FFFFFFF", buffer)); + + AssignHexString(&bignum, "100000000000000"); + AssignHexString(&other, "1"); + bignum.SubtractBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("FFFFFFFFFFFFFF", buffer)); + + AssignHexString(&bignum, "10000000000000000000000000000000000000000001"); + AssignHexString(&other, "1"); + bignum.SubtractBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("10000000000000000000000000000000000000000000", buffer)); + + AssignHexString(&bignum, "1000000000001"); + AssignHexString(&other, "1000000000000"); + bignum.SubtractBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1", buffer)); + + AssignHexString(&bignum, "100000FFFFFFF"); + AssignHexString(&other, "1000000000000"); + bignum.SubtractBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("FFFFFFF", buffer)); + + AssignHexString(&bignum, "10000000000000000000000000000001000000000000"); + AssignHexString(&other, "1000000000000"); + bignum.SubtractBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("10000000000000000000000000000000000000000000", buffer)); + + AssignHexString(&bignum, "1000000000000000000000000000000FFFFFFFFFFFF"); + AssignHexString(&other, "1000000000000"); + bignum.SubtractBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", buffer)); + + bignum.AssignUInt16(0x1); + bignum.ShiftLeft(100); + // "10 0000 0000 0000 0000 0000 0000" + AssignHexString(&other, "1000000000000"); + bignum.SubtractBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("FFFFFFFFFFFFF000000000000", buffer)); + + AssignHexString(&other, "1000000000000"); + other.ShiftLeft(48); + // other == "1000000000000000000000000" + + bignum.AssignUInt16(0x1); + bignum.ShiftLeft(100); + // bignum == "10000000000000000000000000" + bignum.SubtractBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("F000000000000000000000000", buffer)); + + other.AssignUInt16(0x1); + other.ShiftLeft(35); + // other == "800000000" + AssignHexString(&bignum, "FFFFFFF"); + bignum.ShiftLeft(60); + // bignum = FFFFFFF000000000000000 + bignum.SubtractBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("FFFFFFEFFFFFF800000000", buffer)); + + AssignHexString(&bignum, "10000000000000000000000000000000000000000000"); + bignum.SubtractBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF800000000", buffer)); + + AssignHexString(&bignum, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"); + bignum.SubtractBignum(other); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFFF", buffer)); +} + +TEST_F(BignumTest, MultiplyUInt32) { + char buffer[kBufferSize]; + Bignum bignum; + + AssignHexString(&bignum, "0"); + bignum.MultiplyByUInt32(0x25); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("0", buffer)); + + AssignHexString(&bignum, "2"); + bignum.MultiplyByUInt32(0x5); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("A", buffer)); + + AssignHexString(&bignum, "10000000"); + bignum.MultiplyByUInt32(0x9); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("90000000", buffer)); + + AssignHexString(&bignum, "100000000000000"); + bignum.MultiplyByUInt32(0xFFFF); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("FFFF00000000000000", buffer)); + + AssignHexString(&bignum, "100000000000000"); + bignum.MultiplyByUInt32(0xFFFFFFFF); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("FFFFFFFF00000000000000", buffer)); + + AssignHexString(&bignum, "1234567ABCD"); + bignum.MultiplyByUInt32(0xFFF); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("12333335552433", buffer)); + + AssignHexString(&bignum, "1234567ABCD"); + bignum.MultiplyByUInt32(0xFFFFFFF); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("12345679998A985433", buffer)); + + AssignHexString(&bignum, "FFFFFFFFFFFFFFFF"); + bignum.MultiplyByUInt32(0x2); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1FFFFFFFFFFFFFFFE", buffer)); + + AssignHexString(&bignum, "FFFFFFFFFFFFFFFF"); + bignum.MultiplyByUInt32(0x4); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("3FFFFFFFFFFFFFFFC", buffer)); + + AssignHexString(&bignum, "FFFFFFFFFFFFFFFF"); + bignum.MultiplyByUInt32(0xF); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("EFFFFFFFFFFFFFFF1", buffer)); + + AssignHexString(&bignum, "FFFFFFFFFFFFFFFF"); + bignum.MultiplyByUInt32(0xFFFFFF); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("FFFFFEFFFFFFFFFF000001", buffer)); + + bignum.AssignUInt16(0x1); + bignum.ShiftLeft(100); + // "10 0000 0000 0000 0000 0000 0000" + bignum.MultiplyByUInt32(2); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("20000000000000000000000000", buffer)); + + bignum.AssignUInt16(0x1); + bignum.ShiftLeft(100); + // "10 0000 0000 0000 0000 0000 0000" + bignum.MultiplyByUInt32(0xF); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("F0000000000000000000000000", buffer)); + + bignum.AssignUInt16(0xFFFF); + bignum.ShiftLeft(100); + // "FFFF0 0000 0000 0000 0000 0000 0000" + bignum.MultiplyByUInt32(0xFFFF); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("FFFE00010000000000000000000000000", buffer)); + + bignum.AssignUInt16(0xFFFF); + bignum.ShiftLeft(100); + // "FFFF0 0000 0000 0000 0000 0000 0000" + bignum.MultiplyByUInt32(0xFFFFFFFF); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("FFFEFFFF00010000000000000000000000000", buffer)); + + bignum.AssignUInt16(0xFFFF); + bignum.ShiftLeft(100); + // "FFFF0 0000 0000 0000 0000 0000 0000" + bignum.MultiplyByUInt32(0xFFFFFFFF); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("FFFEFFFF00010000000000000000000000000", buffer)); + + AssignDecimalString(&bignum, "15611230384529777"); + bignum.MultiplyByUInt32(10000000); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("210EDD6D4CDD2580EE80", buffer)); +} + +TEST_F(BignumTest, MultiplyUInt64) { + char buffer[kBufferSize]; + Bignum bignum; + + AssignHexString(&bignum, "0"); + bignum.MultiplyByUInt64(0x25); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("0", buffer)); + + AssignHexString(&bignum, "2"); + bignum.MultiplyByUInt64(0x5); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("A", buffer)); + + AssignHexString(&bignum, "10000000"); + bignum.MultiplyByUInt64(0x9); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("90000000", buffer)); + + AssignHexString(&bignum, "100000000000000"); + bignum.MultiplyByUInt64(0xFFFF); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("FFFF00000000000000", buffer)); + + AssignHexString(&bignum, "100000000000000"); + bignum.MultiplyByUInt64(0xFFFF'FFFF'FFFF'FFFF); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("FFFFFFFFFFFFFFFF00000000000000", buffer)); + + AssignHexString(&bignum, "1234567ABCD"); + bignum.MultiplyByUInt64(0xFFF); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("12333335552433", buffer)); + + AssignHexString(&bignum, "1234567ABCD"); + bignum.MultiplyByUInt64(0xFF'FFFF'FFFF); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1234567ABCBDCBA985433", buffer)); + + AssignHexString(&bignum, "FFFFFFFFFFFFFFFF"); + bignum.MultiplyByUInt64(0x2); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1FFFFFFFFFFFFFFFE", buffer)); + + AssignHexString(&bignum, "FFFFFFFFFFFFFFFF"); + bignum.MultiplyByUInt64(0x4); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("3FFFFFFFFFFFFFFFC", buffer)); + + AssignHexString(&bignum, "FFFFFFFFFFFFFFFF"); + bignum.MultiplyByUInt64(0xF); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("EFFFFFFFFFFFFFFF1", buffer)); + + AssignHexString(&bignum, "FFFFFFFFFFFFFFFF"); + bignum.MultiplyByUInt64(0xFFFF'FFFF'FFFF'FFFF); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("FFFFFFFFFFFFFFFE0000000000000001", buffer)); + + bignum.AssignUInt16(0x1); + bignum.ShiftLeft(100); + // "10 0000 0000 0000 0000 0000 0000" + bignum.MultiplyByUInt64(2); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("20000000000000000000000000", buffer)); + + bignum.AssignUInt16(0x1); + bignum.ShiftLeft(100); + // "10 0000 0000 0000 0000 0000 0000" + bignum.MultiplyByUInt64(0xF); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("F0000000000000000000000000", buffer)); + + bignum.AssignUInt16(0xFFFF); + bignum.ShiftLeft(100); + // "FFFF0 0000 0000 0000 0000 0000 0000" + bignum.MultiplyByUInt64(0xFFFF); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("FFFE00010000000000000000000000000", buffer)); + + bignum.AssignUInt16(0xFFFF); + bignum.ShiftLeft(100); + // "FFFF0 0000 0000 0000 0000 0000 0000" + bignum.MultiplyByUInt64(0xFFFFFFFF); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("FFFEFFFF00010000000000000000000000000", buffer)); + + bignum.AssignUInt16(0xFFFF); + bignum.ShiftLeft(100); + // "FFFF0 0000 0000 0000 0000 0000 0000" + bignum.MultiplyByUInt64(0xFFFF'FFFF'FFFF'FFFF); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("FFFEFFFFFFFFFFFF00010000000000000000000000000", buffer)); + + AssignDecimalString(&bignum, "15611230384529777"); + bignum.MultiplyByUInt64(0x8AC7'2304'89E8'0000); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1E10EE4B11D15A7F3DE7F3C7680000", buffer)); +} + +TEST_F(BignumTest, MultiplyPowerOfTen) { + char buffer[kBufferSize]; + Bignum bignum; + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(1); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("3034", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(2); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1E208", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(3); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("12D450", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(4); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("BC4B20", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(5); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("75AEF40", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(6); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("498D5880", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(7); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("2DF857500", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(8); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1CBB369200", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(9); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("11F5021B400", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(10); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("B3921510800", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(11); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("703B4D2A5000", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(12); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("4625103A72000", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(13); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("2BD72A24874000", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(14); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1B667A56D488000", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(15); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("11200C7644D50000", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(16); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("AB407C9EB0520000", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(17); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("6B084DE32E3340000", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(18); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("42E530ADFCE0080000", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(19); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("29CF3E6CBE0C0500000", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(20); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1A218703F6C783200000", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(21); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1054F4627A3CB1F400000", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(22); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("A3518BD8C65EF38800000", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(23); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("6612F7677BFB5835000000", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(24); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("3FCBDAA0AD7D17212000000", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(25); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("27DF68A46C6E2E74B4000000", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(26); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("18EBA166C3C4DD08F08000000", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(27); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("F9344E03A5B0A259650000000", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(28); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("9BC0B0C2478E6577DF20000000", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(29); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("61586E796CB8FF6AEB740000000", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(30); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("3CD7450BE3F39FA2D32880000000", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(31); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("26068B276E7843C5C3F9500000000", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(50); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("149D1B4CFED03B23AB5F4E1196EF45C08000000000000", buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(100); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ( + 0, strcmp("5827249F27165024FBC47DFCA9359BF316332D1B91ACEECF471FBAB06D9B2" + "0000000000000000000000000", + buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(200); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ( + 0, strcmp("64C1F5C06C3816AFBF8DAFD5A3D756365BB0FD020E6F084E759C1F7C99E4F" + "55B9ACC667CEC477EB958C2AEEB3C6C19BA35A1AD30B35C51EB72040920000" + "0000000000000000000000000000000000000000000000", + buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(500); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ( + 0, strcmp("96741A625EB5D7C91039FEB5C5ACD6D9831EDA5B083D800E6019442C8C8223" + "3EAFB3501FE2058062221E15121334928880827DEE1EC337A8B26489F3A40A" + "CB440A2423734472D10BFCE886F41B3AF9F9503013D86D088929CA86EEB4D8" + "B9C831D0BD53327B994A0326227CFD0ECBF2EB48B02387AAE2D4CCCDF1F1A1" + "B8CC4F1FA2C56AD40D0E4DAA9C28CDBF0A549098EA13200000000000000000" + "00000000000000000000000000000000000000000000000000000000000000" + "0000000000000000000000000000000000000000000000", + buffer)); + + AssignDecimalString(&bignum, "1234"); + bignum.MultiplyByPowerOfTen(1000); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ( + 0, strcmp("1258040F99B1CD1CC9819C676D413EA50E4A6A8F114BB0C65418C62D399B81" + "6361466CA8E095193E1EE97173553597C96673AF67FAFE27A66E7EF2E5EF2E" + "E3F5F5070CC17FE83BA53D40A66A666A02F9E00B0E11328D2224B8694C7372" + "F3D536A0AD1985911BD361496F268E8B23112500EAF9B88A9BC67B2AB04D38" + "7FEFACD00F5AF4F764F9ABC3ABCDE54612DE38CD90CB6647CA389EA0E86B16" + "BF7A1F34086E05ADBE00BD1673BE00FAC4B34AF1091E8AD50BA675E0381440" + "EA8E9D93E75D816BAB37C9844B1441C38FC65CF30ABB71B36433AF26DD97BD" + "ABBA96C03B4919B8F3515B92826B85462833380DC193D79F69D20DD6038C99" + "6114EF6C446F0BA28CC772ACBA58B81C04F8FFDE7B18C4E5A3ABC51E637FDF" + "6E37FDFF04C940919390F4FF92000000000000000000000000000000000000" + "00000000000000000000000000000000000000000000000000000000000000" + "00000000000000000000000000000000000000000000000000000000000000" + "00000000000000000000000000000000000000000000000000000000000000" + "0000000000000000000000000000", + buffer)); + + Bignum bignum2; + AssignHexString(&bignum2, + "3DA774C07FB5DF54284D09C675A492165B830D5DAAEB2A7501" + "DA17CF9DFA1CA2282269F92A25A97314296B717E3DCBB9FE17" + "41A842FE2913F540F40796F2381155763502C58B15AF7A7F88" + "6F744C9164FF409A28F7FA0C41F89ED79C1BE9F322C8578B97" + "841F1CBAA17D901BE1230E3C00E1C643AF32638B5674E01FEA" + "96FC90864E621B856A9E1CE56E6EB545B9C2F8F0CC10DDA88D" + "CC6D282605F8DB67044F2DFD3695E7BA63877AE16701536AE6" + "567C794D0BFE338DFBB42D92D4215AF3BB22BF0A8B283FDDC2" + "C667A10958EA6D2"); + EXPECT_TRUE(bignum2.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("3DA774C07FB5DF54284D09C675A492165B830D5DAAEB2A7501" + "DA17CF9DFA1CA2282269F92A25A97314296B717E3DCBB9FE17" + "41A842FE2913F540F40796F2381155763502C58B15AF7A7F88" + "6F744C9164FF409A28F7FA0C41F89ED79C1BE9F322C8578B97" + "841F1CBAA17D901BE1230E3C00E1C643AF32638B5674E01FEA" + "96FC90864E621B856A9E1CE56E6EB545B9C2F8F0CC10DDA88D" + "CC6D282605F8DB67044F2DFD3695E7BA63877AE16701536AE6" + "567C794D0BFE338DFBB42D92D4215AF3BB22BF0A8B283FDDC2" + "C667A10958EA6D2", + buffer)); + + bignum.AssignBignum(bignum2); + bignum.MultiplyByPowerOfTen(1); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ( + 0, strcmp("2688A8F84FD1AB949930261C0986DB4DF931E85A8AD2FA8921284EE1C2BC51" + "E55915823BBA5789E7EC99E326EEE69F543ECE890929DED9AC79489884BE57" + "630AD569E121BB76ED8DAC8FB545A8AFDADF1F8860599AFC47A93B6346C191" + "7237F5BD36B73EB29371F4A4EE7A116CB5E8E5808D1BEA4D7F7E3716090C13" + "F29E5DDA53F0FD513362A2D20F6505314B9419DB967F8A8A89589FC43917C3" + "BB892062B17CBE421DB0D47E34ACCCE060D422CFF60DCBD0277EE038BD509C" + "7BC494D8D854F5B76696F927EA99BC00C4A5D7928434", + buffer)); + + bignum.AssignBignum(bignum2); + bignum.MultiplyByPowerOfTen(2); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ( + 0, + strcmp("1815699B31E30B3CDFBE17D185F44910BBBF313896C3DC95B4B9314D19B5B32" + "F57AD71655476B630F3E02DF855502394A74115A5BA2B480BCBCD5F52F6F69D" + "E6C5622CB5152A54788BD9D14B896DE8CB73B53C3800DDACC9C51E0C38FAE76" + "2F9964232872F9C2738E7150C4AE3F1B18F70583172706FAEE26DC5A78C77A2" + "FAA874769E52C01DA5C3499F233ECF3C90293E0FB69695D763DAA3AEDA5535B" + "43DAEEDF6E9528E84CEE0EC000C3C8495C1F9C89F6218AF4C23765261CD5ADD" + "0787351992A01E5BB8F2A015807AE7A6BB92A08", + buffer)); + + bignum.AssignBignum(bignum2); + bignum.MultiplyByPowerOfTen(5); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ( + 0, strcmp("5E13A4863ADEE3E5C9FE8D0A73423D695D62D8450CED15A8C9F368952C6DC3" + "F0EE7D82F3D1EFB7AF38A3B3920D410AFCAD563C8F5F39116E141A3C5C14B3" + "58CD73077EA35AAD59F6E24AD98F10D5555ABBFBF33AC361EAF429FD5FBE94" + "17DA9EF2F2956011F9F93646AA38048A681D984ED88127073443247CCC167C" + "B354A32206EF5A733E73CF82D795A1AD598493211A6D613C39515E0E0F6304" + "DCD9C810F3518C7F6A7CB6C81E99E02FCC65E8FDB7B7AE97306CC16A8631CE" + "0A2AEF6568276BE4C176964A73C153FDE018E34CB4C2F40", + buffer)); + + bignum.AssignBignum(bignum2); + bignum.MultiplyByPowerOfTen(10); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ( + 0, strcmp("8F8CB8EB51945A7E815809F6121EF2F4E61EF3405CD9432CAD2709749EEAFD" + "1B81E843F14A3667A7BDCCC9E0BB795F63CDFDB62844AC7438976C885A0116" + "29607DA54F9C023CC366570B7637ED0F855D931752038A614922D0923E382C" + "B8E5F6C975672DB76E0DE471937BB9EDB11E28874F1C122D5E1EF38CECE9D0" + "0723056BCBD4F964192B76830634B1D322B7EB0062F3267E84F5C824343A77" + "4B7DCEE6DD464F01EBDC8C671BB18BB4EF4300A42474A6C77243F2A12B03BF" + "0443C38A1C0D2701EDB393135AE0DEC94211F9D4EB51F990800", + buffer)); + + bignum.AssignBignum(bignum2); + bignum.MultiplyByPowerOfTen(50); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ( + 0, strcmp("107A8BE345E24407372FC1DE442CBA696BC23C4FFD5B4BDFD9E5C39559815" + "86628CF8472D2D589F2FC2BAD6E0816EC72CBF85CCA663D8A1EC6C51076D8" + "2D247E6C26811B7EC4D4300FB1F91028DCB7B2C4E7A60C151161AA7E65E79" + "B40917B12B2B5FBE7745984D4E8EFA31F9AE6062427B068B144A9CB155873" + "E7C0C9F0115E5AC72DC5A73C4796DB970BF9205AB8C77A6996EB1B417F9D1" + "6232431E6313C392203601B9C22CC10DDA88DCC6D282605F8DB67044F2DFD" + "3695E7BA63877AE16701536AE6567C794D0BFE338DFBB42D924CF964BD2C0" + "F586E03A2FCD35A408000000000000", + buffer)); + + bignum.AssignBignum(bignum2); + bignum.MultiplyByPowerOfTen(100); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ( + 0, strcmp("46784A90ACD0ED3E7759CC585FB32D36EB6034A6F78D92604E3BAA5ED3D8B" + "6E60E854439BE448897FB4B7EA5A3D873AA0FCB3CFFD80D0530880E45F511" + "722A50CE7E058B5A6F5464DB7500E34984EE3202A9441F44FA1554C0CEA96" + "B438A36F25E7C9D56D71AE2CD313EC37534DA299AC0854FC48591A7CF3171" + "31265AA4AE62DE32344CE7BEEEF894AE686A2DAAFE5D6D9A10971FFD9C064" + "5079B209E1048F58B5192D41D84336AC4C8C489EEF00939CFC9D55C122036" + "01B9C22CC10DDA88DCC6D282605F8DB67044F2DFD3695E7BA3F67B96D3A32" + "E11FB5561B68744C4035B0800DC166D49D98E3FD1D5BB2000000000000000" + "0000000000", + buffer)); + + bignum.AssignBignum(bignum2); + bignum.MultiplyByPowerOfTen(200); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ( + 0, strcmp("508BD351221DF139D72D88CDC0416845A53EE2D0E6B98352509A9AC312F8C" + "6CB1A144889416201E0B6CE66EA3EBE259B5FD79ECFC1FD77963CE516CC7E" + "2FE73D4B5B710C19F6BCB092C7A2FD76286543B8DBD2C596DFF2C896720BA" + "DFF7BC9C366ACEA3A880AEC287C5E6207DF2739B5326FC19D773BD830B109" + "ED36C7086544BF8FDB9D4B73719C2B5BC2F571A5937EC46876CD428281F6B" + "F287E1E07F25C1B1D46BC37324FF657A8B2E0071DB83B86123CA34004F406" + "001082D7945E90C6E8C9A9FEC2B44BE0DDA46E9F52B152E4D1336D2FCFBC9" + "96E30CA0082256737365158FE36482AA7EB9DAF2AB128F10E7551A3CD5BE6" + "0A922F3A7D5EED38B634A7EC95BCF7021BA6820A292000000000000000000" + "00000000000000000000000000000000", + buffer)); + + bignum.AssignBignum(bignum2); + bignum.MultiplyByPowerOfTen(500); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ( + 0, strcmp("7845F900E475B5086885BAAAE67C8E85185ACFE4633727F82A4B06B5582AC" + "BE933C53357DA0C98C20C5AC900C4D76A97247DF52B79F48F9E35840FB715" + "D392CE303E22622B0CF82D9471B398457DD3196F639CEE8BBD2C146873841" + "F0699E6C41F04FC7A54B48CEB995BEB6F50FE81DE9D87A8D7F849CC523553" + "7B7BBBC1C7CAAFF6E9650BE03B308C6D31012AEF9580F70D3EE2083ADE126" + "8940FA7D6308E239775DFD2F8C97FF7EBD525DAFA6512216F7047A62A93DC" + "38A0165BDC67E250DCC96A0181DE935A70B38704DC71819F02FC5261FF7E1" + "E5F11907678B0A3E519FF4C10A867B0C26CE02BE6960BA8621A87303C101C" + "3F88798BB9F7739655946F8B5744E6B1EAF10B0C5621330F0079209033C69" + "20DE2E2C8D324F0624463735D482BF291926C22A910F5B80FA25170B6B57D" + "8D5928C7BCA3FE87461275F69BD5A1B83181DAAF43E05FC3C72C4E93111B6" + "6205EBF49B28FEDFB7E7526CBDA658A332000000000000000000000000000" + "0000000000000000000000000000000000000000000000000000000000000" + "0000000000000000000000000000000000000", + buffer)); +} + +TEST_F(BignumTest, DivideModuloIntBignum) { + char buffer[kBufferSize]; + Bignum bignum; + Bignum other; + Bignum third; + + bignum.AssignUInt16(10); + other.AssignUInt16(2); + EXPECT_EQ(5, bignum.DivideModuloIntBignum(other)); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("0", buffer)); + + bignum.AssignUInt16(10); + bignum.ShiftLeft(500); + other.AssignUInt16(2); + other.ShiftLeft(500); + EXPECT_EQ(5, bignum.DivideModuloIntBignum(other)); + EXPECT_EQ(0, strcmp("0", buffer)); + + bignum.AssignUInt16(11); + other.AssignUInt16(2); + EXPECT_EQ(5, bignum.DivideModuloIntBignum(other)); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1", buffer)); + + bignum.AssignUInt16(10); + bignum.ShiftLeft(500); + other.AssignUInt16(1); + bignum.AddBignum(other); + other.AssignUInt16(2); + other.ShiftLeft(500); + EXPECT_EQ(5, bignum.DivideModuloIntBignum(other)); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1", buffer)); + + bignum.AssignUInt16(10); + bignum.ShiftLeft(500); + other.AssignBignum(bignum); + bignum.MultiplyByUInt32(0x1234); + third.AssignUInt16(0xFFF); + bignum.AddBignum(third); + EXPECT_EQ(0x1234, bignum.DivideModuloIntBignum(other)); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("FFF", buffer)); + + bignum.AssignUInt16(10); + AssignHexString(&other, "1234567890"); + EXPECT_EQ(0, bignum.DivideModuloIntBignum(other)); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("A", buffer)); + + AssignHexString(&bignum, "12345678"); + AssignHexString(&other, "3789012"); + EXPECT_EQ(5, bignum.DivideModuloIntBignum(other)); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("D9861E", buffer)); + + AssignHexString(&bignum, "70000001"); + AssignHexString(&other, "1FFFFFFF"); + EXPECT_EQ(3, bignum.DivideModuloIntBignum(other)); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("10000004", buffer)); + + AssignHexString(&bignum, "28000000"); + AssignHexString(&other, "12A05F20"); + EXPECT_EQ(2, bignum.DivideModuloIntBignum(other)); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("2BF41C0", buffer)); + + bignum.AssignUInt16(10); + bignum.ShiftLeft(500); + other.AssignBignum(bignum); + bignum.MultiplyByUInt32(0x1234); + third.AssignUInt16(0xFFF); + other.SubtractBignum(third); + EXPECT_EQ(0x1234, bignum.DivideModuloIntBignum(other)); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1232DCC", buffer)); + EXPECT_EQ(0, bignum.DivideModuloIntBignum(other)); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1232DCC", buffer)); +} + +TEST_F(BignumTest, Compare) { + Bignum bignum1; + Bignum bignum2; + bignum1.AssignUInt16(1); + bignum2.AssignUInt16(1); + EXPECT_EQ(0, Bignum::Compare(bignum1, bignum2)); + EXPECT_TRUE(Bignum::Equal(bignum1, bignum2)); + EXPECT_TRUE(Bignum::LessEqual(bignum1, bignum2)); + EXPECT_TRUE(!Bignum::Less(bignum1, bignum2)); + + bignum1.AssignUInt16(0); + bignum2.AssignUInt16(1); + EXPECT_EQ(-1, Bignum::Compare(bignum1, bignum2)); + EXPECT_EQ(+1, Bignum::Compare(bignum2, bignum1)); + EXPECT_TRUE(!Bignum::Equal(bignum1, bignum2)); + EXPECT_TRUE(!Bignum::Equal(bignum2, bignum1)); + EXPECT_TRUE(Bignum::LessEqual(bignum1, bignum2)); + EXPECT_TRUE(!Bignum::LessEqual(bignum2, bignum1)); + EXPECT_TRUE(Bignum::Less(bignum1, bignum2)); + EXPECT_TRUE(!Bignum::Less(bignum2, bignum1)); + + AssignHexString(&bignum1, "1234567890ABCDEF12345"); + AssignHexString(&bignum2, "1234567890ABCDEF12345"); + EXPECT_EQ(0, Bignum::Compare(bignum1, bignum2)); + + AssignHexString(&bignum1, "1234567890ABCDEF12345"); + AssignHexString(&bignum2, "1234567890ABCDEF12346"); + EXPECT_EQ(-1, Bignum::Compare(bignum1, bignum2)); + EXPECT_EQ(+1, Bignum::Compare(bignum2, bignum1)); + + AssignHexString(&bignum1, "1234567890ABCDEF12345"); + bignum1.ShiftLeft(500); + AssignHexString(&bignum2, "1234567890ABCDEF12345"); + bignum2.ShiftLeft(500); + EXPECT_EQ(0, Bignum::Compare(bignum1, bignum2)); + + AssignHexString(&bignum1, "1234567890ABCDEF12345"); + bignum1.ShiftLeft(500); + AssignHexString(&bignum2, "1234567890ABCDEF12346"); + bignum2.ShiftLeft(500); + EXPECT_EQ(-1, Bignum::Compare(bignum1, bignum2)); + EXPECT_EQ(+1, Bignum::Compare(bignum2, bignum1)); + + bignum1.AssignUInt16(1); + bignum1.ShiftLeft(64); + AssignHexString(&bignum2, "10000000000000000"); + EXPECT_EQ(0, Bignum::Compare(bignum1, bignum2)); + EXPECT_EQ(0, Bignum::Compare(bignum2, bignum1)); + + bignum1.AssignUInt16(1); + bignum1.ShiftLeft(64); + AssignHexString(&bignum2, "10000000000000001"); + EXPECT_EQ(-1, Bignum::Compare(bignum1, bignum2)); + EXPECT_EQ(+1, Bignum::Compare(bignum2, bignum1)); + + bignum1.AssignUInt16(1); + bignum1.ShiftLeft(96); + AssignHexString(&bignum2, "10000000000000001"); + bignum2.ShiftLeft(32); + EXPECT_EQ(-1, Bignum::Compare(bignum1, bignum2)); + EXPECT_EQ(+1, Bignum::Compare(bignum2, bignum1)); + + AssignHexString(&bignum1, "FFFFFFFFFFFFFFFF"); + bignum2.AssignUInt16(1); + bignum2.ShiftLeft(64); + EXPECT_EQ(-1, Bignum::Compare(bignum1, bignum2)); + EXPECT_EQ(+1, Bignum::Compare(bignum2, bignum1)); + + AssignHexString(&bignum1, "FFFFFFFFFFFFFFFF"); + bignum1.ShiftLeft(32); + bignum2.AssignUInt16(1); + bignum2.ShiftLeft(96); + EXPECT_EQ(-1, Bignum::Compare(bignum1, bignum2)); + EXPECT_EQ(+1, Bignum::Compare(bignum2, bignum1)); + + AssignHexString(&bignum1, "FFFFFFFFFFFFFFFF"); + bignum1.ShiftLeft(32); + bignum2.AssignUInt16(1); + bignum2.ShiftLeft(95); + EXPECT_EQ(+1, Bignum::Compare(bignum1, bignum2)); + EXPECT_EQ(-1, Bignum::Compare(bignum2, bignum1)); + + AssignHexString(&bignum1, "FFFFFFFFFFFFFFFF"); + bignum1.ShiftLeft(32); + bignum2.AssignUInt16(1); + bignum2.ShiftLeft(100); + EXPECT_EQ(-1, Bignum::Compare(bignum1, bignum2)); + EXPECT_EQ(+1, Bignum::Compare(bignum2, bignum1)); + + AssignHexString(&bignum1, "100000000000000"); + bignum2.AssignUInt16(1); + bignum2.ShiftLeft(14 * 4); + EXPECT_EQ(0, Bignum::Compare(bignum1, bignum2)); + EXPECT_EQ(0, Bignum::Compare(bignum2, bignum1)); + + AssignHexString(&bignum1, "100000000000001"); + bignum2.AssignUInt16(1); + bignum2.ShiftLeft(14 * 4); + EXPECT_EQ(+1, Bignum::Compare(bignum1, bignum2)); + EXPECT_EQ(-1, Bignum::Compare(bignum2, bignum1)); + + AssignHexString(&bignum1, "200000000000000"); + bignum2.AssignUInt16(3); + bignum2.ShiftLeft(14 * 4); + EXPECT_EQ(-1, Bignum::Compare(bignum1, bignum2)); + EXPECT_EQ(+1, Bignum::Compare(bignum2, bignum1)); +} + +TEST_F(BignumTest, PlusCompare) { + Bignum a; + Bignum b; + Bignum c; + a.AssignUInt16(1); + b.AssignUInt16(0); + c.AssignUInt16(1); + EXPECT_EQ(0, Bignum::PlusCompare(a, b, c)); + EXPECT_TRUE(Bignum::PlusEqual(a, b, c)); + EXPECT_TRUE(Bignum::PlusLessEqual(a, b, c)); + EXPECT_TRUE(!Bignum::PlusLess(a, b, c)); + + a.AssignUInt16(0); + b.AssignUInt16(0); + c.AssignUInt16(1); + EXPECT_EQ(-1, Bignum::PlusCompare(a, b, c)); + EXPECT_EQ(+1, Bignum::PlusCompare(c, b, a)); + EXPECT_TRUE(!Bignum::PlusEqual(a, b, c)); + EXPECT_TRUE(!Bignum::PlusEqual(c, b, a)); + EXPECT_TRUE(Bignum::PlusLessEqual(a, b, c)); + EXPECT_TRUE(!Bignum::PlusLessEqual(c, b, a)); + EXPECT_TRUE(Bignum::PlusLess(a, b, c)); + EXPECT_TRUE(!Bignum::PlusLess(c, b, a)); + + AssignHexString(&a, "1234567890ABCDEF12345"); + b.AssignUInt16(1); + AssignHexString(&c, "1234567890ABCDEF12345"); + EXPECT_EQ(+1, Bignum::PlusCompare(a, b, c)); + + AssignHexString(&a, "1234567890ABCDEF12344"); + b.AssignUInt16(1); + AssignHexString(&c, "1234567890ABCDEF12345"); + EXPECT_EQ(0, Bignum::PlusCompare(a, b, c)); + + AssignHexString(&a, "1234567890"); + a.ShiftLeft(11 * 4); + AssignHexString(&b, "ABCDEF12345"); + AssignHexString(&c, "1234567890ABCDEF12345"); + EXPECT_EQ(0, Bignum::PlusCompare(a, b, c)); + + AssignHexString(&a, "1234567890"); + a.ShiftLeft(11 * 4); + AssignHexString(&b, "ABCDEF12344"); + AssignHexString(&c, "1234567890ABCDEF12345"); + EXPECT_EQ(-1, Bignum::PlusCompare(a, b, c)); + + AssignHexString(&a, "1234567890"); + a.ShiftLeft(11 * 4); + AssignHexString(&b, "ABCDEF12346"); + AssignHexString(&c, "1234567890ABCDEF12345"); + EXPECT_EQ(1, Bignum::PlusCompare(a, b, c)); + + AssignHexString(&a, "1234567891"); + a.ShiftLeft(11 * 4); + AssignHexString(&b, "ABCDEF12345"); + AssignHexString(&c, "1234567890ABCDEF12345"); + EXPECT_EQ(1, Bignum::PlusCompare(a, b, c)); + + AssignHexString(&a, "1234567889"); + a.ShiftLeft(11 * 4); + AssignHexString(&b, "ABCDEF12345"); + AssignHexString(&c, "1234567890ABCDEF12345"); + EXPECT_EQ(-1, Bignum::PlusCompare(a, b, c)); + + AssignHexString(&a, "1234567890"); + a.ShiftLeft(11 * 4 + 32); + AssignHexString(&b, "ABCDEF12345"); + b.ShiftLeft(32); + AssignHexString(&c, "1234567890ABCDEF12345"); + c.ShiftLeft(32); + EXPECT_EQ(0, Bignum::PlusCompare(a, b, c)); + + AssignHexString(&a, "1234567890"); + a.ShiftLeft(11 * 4 + 32); + AssignHexString(&b, "ABCDEF12344"); + b.ShiftLeft(32); + AssignHexString(&c, "1234567890ABCDEF12345"); + c.ShiftLeft(32); + EXPECT_EQ(-1, Bignum::PlusCompare(a, b, c)); + + AssignHexString(&a, "1234567890"); + a.ShiftLeft(11 * 4 + 32); + AssignHexString(&b, "ABCDEF12346"); + b.ShiftLeft(32); + AssignHexString(&c, "1234567890ABCDEF12345"); + c.ShiftLeft(32); + EXPECT_EQ(1, Bignum::PlusCompare(a, b, c)); + + AssignHexString(&a, "1234567891"); + a.ShiftLeft(11 * 4 + 32); + AssignHexString(&b, "ABCDEF12345"); + b.ShiftLeft(32); + AssignHexString(&c, "1234567890ABCDEF12345"); + c.ShiftLeft(32); + EXPECT_EQ(1, Bignum::PlusCompare(a, b, c)); + + AssignHexString(&a, "1234567889"); + a.ShiftLeft(11 * 4 + 32); + AssignHexString(&b, "ABCDEF12345"); + b.ShiftLeft(32); + AssignHexString(&c, "1234567890ABCDEF12345"); + c.ShiftLeft(32); + EXPECT_EQ(-1, Bignum::PlusCompare(a, b, c)); + + AssignHexString(&a, "1234567890"); + a.ShiftLeft(11 * 4 + 32); + AssignHexString(&b, "ABCDEF12345"); + b.ShiftLeft(32); + AssignHexString(&c, "1234567890ABCDEF1234500000000"); + EXPECT_EQ(0, Bignum::PlusCompare(a, b, c)); + + AssignHexString(&a, "1234567890"); + a.ShiftLeft(11 * 4 + 32); + AssignHexString(&b, "ABCDEF12344"); + b.ShiftLeft(32); + AssignHexString(&c, "1234567890ABCDEF1234500000000"); + EXPECT_EQ(-1, Bignum::PlusCompare(a, b, c)); + + AssignHexString(&a, "1234567890"); + a.ShiftLeft(11 * 4 + 32); + AssignHexString(&b, "ABCDEF12346"); + b.ShiftLeft(32); + AssignHexString(&c, "1234567890ABCDEF1234500000000"); + EXPECT_EQ(1, Bignum::PlusCompare(a, b, c)); + + AssignHexString(&a, "1234567891"); + a.ShiftLeft(11 * 4 + 32); + AssignHexString(&b, "ABCDEF12345"); + b.ShiftLeft(32); + AssignHexString(&c, "1234567890ABCDEF1234500000000"); + EXPECT_EQ(1, Bignum::PlusCompare(a, b, c)); + + AssignHexString(&a, "1234567889"); + a.ShiftLeft(11 * 4 + 32); + AssignHexString(&b, "ABCDEF12345"); + b.ShiftLeft(32); + AssignHexString(&c, "1234567890ABCDEF1234500000000"); + EXPECT_EQ(-1, Bignum::PlusCompare(a, b, c)); + + AssignHexString(&a, "1234567890"); + a.ShiftLeft(11 * 4 + 32); + AssignHexString(&b, "ABCDEF12345"); + AssignHexString(&c, "123456789000000000ABCDEF12345"); + EXPECT_EQ(0, Bignum::PlusCompare(a, b, c)); + + AssignHexString(&a, "1234567890"); + a.ShiftLeft(11 * 4 + 32); + AssignHexString(&b, "ABCDEF12346"); + AssignHexString(&c, "123456789000000000ABCDEF12345"); + EXPECT_EQ(1, Bignum::PlusCompare(a, b, c)); + + AssignHexString(&a, "1234567890"); + a.ShiftLeft(11 * 4 + 32); + AssignHexString(&b, "ABCDEF12344"); + AssignHexString(&c, "123456789000000000ABCDEF12345"); + EXPECT_EQ(-1, Bignum::PlusCompare(a, b, c)); + + AssignHexString(&a, "1234567890"); + a.ShiftLeft(11 * 4 + 32); + AssignHexString(&b, "ABCDEF12345"); + b.ShiftLeft(16); + AssignHexString(&c, "12345678900000ABCDEF123450000"); + EXPECT_EQ(0, Bignum::PlusCompare(a, b, c)); + + AssignHexString(&a, "1234567890"); + a.ShiftLeft(11 * 4 + 32); + AssignHexString(&b, "ABCDEF12344"); + b.ShiftLeft(16); + AssignHexString(&c, "12345678900000ABCDEF123450000"); + EXPECT_EQ(-1, Bignum::PlusCompare(a, b, c)); + + AssignHexString(&a, "1234567890"); + a.ShiftLeft(11 * 4 + 32); + AssignHexString(&b, "ABCDEF12345"); + b.ShiftLeft(16); + AssignHexString(&c, "12345678900000ABCDEF123450001"); + EXPECT_EQ(-1, Bignum::PlusCompare(a, b, c)); + + AssignHexString(&a, "1234567890"); + a.ShiftLeft(11 * 4 + 32); + AssignHexString(&b, "ABCDEF12346"); + b.ShiftLeft(16); + AssignHexString(&c, "12345678900000ABCDEF123450000"); + EXPECT_EQ(+1, Bignum::PlusCompare(a, b, c)); +} + +TEST_F(BignumTest, Square) { + Bignum bignum; + char buffer[kBufferSize]; + + bignum.AssignUInt16(1); + bignum.Square(); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1", buffer)); + + bignum.AssignUInt16(2); + bignum.Square(); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("4", buffer)); + + bignum.AssignUInt16(10); + bignum.Square(); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("64", buffer)); + + AssignHexString(&bignum, "FFFFFFF"); + bignum.Square(); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("FFFFFFE0000001", buffer)); + + AssignHexString(&bignum, "FFFFFFFFFFFFFF"); + bignum.Square(); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("FFFFFFFFFFFFFE00000000000001", buffer)); +} + +TEST_F(BignumTest, AssignPowerUInt16) { + Bignum bignum; + char buffer[kBufferSize]; + + bignum.AssignPowerUInt16(1, 0); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1", buffer)); + + bignum.AssignPowerUInt16(1, 1); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1", buffer)); + + bignum.AssignPowerUInt16(1, 2); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1", buffer)); + + bignum.AssignPowerUInt16(2, 0); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1", buffer)); + + bignum.AssignPowerUInt16(2, 1); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("2", buffer)); + + bignum.AssignPowerUInt16(2, 2); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("4", buffer)); + + bignum.AssignPowerUInt16(16, 1); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("10", buffer)); + + bignum.AssignPowerUInt16(16, 2); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("100", buffer)); + + bignum.AssignPowerUInt16(16, 5); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("100000", buffer)); + + bignum.AssignPowerUInt16(16, 8); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("100000000", buffer)); + + bignum.AssignPowerUInt16(16, 16); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("10000000000000000", buffer)); + + bignum.AssignPowerUInt16(16, 30); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1000000000000000000000000000000", buffer)); + + bignum.AssignPowerUInt16(10, 0); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1", buffer)); + + bignum.AssignPowerUInt16(10, 1); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("A", buffer)); + + bignum.AssignPowerUInt16(10, 2); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("64", buffer)); + + bignum.AssignPowerUInt16(10, 5); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("186A0", buffer)); + + bignum.AssignPowerUInt16(10, 8); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("5F5E100", buffer)); + + bignum.AssignPowerUInt16(10, 16); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("2386F26FC10000", buffer)); + + bignum.AssignPowerUInt16(10, 30); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("C9F2C9CD04674EDEA40000000", buffer)); + + bignum.AssignPowerUInt16(10, 31); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("7E37BE2022C0914B2680000000", buffer)); + + bignum.AssignPowerUInt16(2, 0); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1", buffer)); + + bignum.AssignPowerUInt16(2, 100); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("10000000000000000000000000", buffer)); + + bignum.AssignPowerUInt16(17, 0); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1", buffer)); + + bignum.AssignPowerUInt16(17, 99); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, strcmp("1942BB9853FAD924A3D4DD92B89B940E0207BEF05DB9C26BC1B757" + "80BE0C5A2C2990E02A681224F34ED68558CE4C6E33760931", + buffer)); + + bignum.AssignPowerUInt16(0xFFFF, 99); + EXPECT_TRUE(bignum.ToHexString(buffer, kBufferSize)); + EXPECT_EQ(0, + strcmp("FF9D12F09B886C54E77E7439C7D2DED2D34F669654C0C2B6B8C288250" + "5A2211D0E3DC9A61831349EAE674B11D56E3049D7BD79DAAD6C9FA2BA" + "528E3A794299F2EE9146A324DAFE3E88967A0358233B543E233E575B9" + "DD4E3AA7942146426C328FF55BFD5C45E0901B1629260AF9AE2F310C5" + "50959FAF305C30116D537D80CF6EBDBC15C5694062AF1AC3D956D0A41" + "B7E1B79FF11E21D83387A1CE1F5882B31E4B5D8DE415BDBE6854466DF" + "343362267A7E8833119D31D02E18DB5B0E8F6A64B0ED0D0062FFFF", + buffer)); +} + +} // namespace test_bignum +} // namespace base +} // namespace v8