b444943db2
Without this change, the following unit test failures would occur: StringTest.cpp:425 [String_resize_grow] StringTest.cpp:435 [String_resize_after_assignment] StringTest.cpp:438 [String_resize_after_assignment] StringTest.cpp:444 [String_resize_after_copy_construction] StringTest.cpp:446 [String_resize_after_copy_construction] Change-Id: Ib4f63d51604e55d32f1049136b733ee905b72039 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/298217 Commit-Queue: John Stiles <johnstiles@google.com> Reviewed-by: Mike Reed <reed@google.com> Reviewed-by: Ben Wagner <bungeman@google.com> Auto-Submit: John Stiles <johnstiles@google.com>
454 lines
14 KiB
C++
454 lines
14 KiB
C++
/*
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* Copyright 2011 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "tests/Test.h"
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#include "include/core/SkString.h"
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#include "src/core/SkStringUtils.h"
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#include <stdio.h>
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#include <thread>
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DEF_TEST(String, reporter) {
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SkString a;
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SkString b((size_t)0);
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SkString c("");
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SkString d(nullptr, 0);
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REPORTER_ASSERT(reporter, a.isEmpty());
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REPORTER_ASSERT(reporter, a == b && a == c && a == d);
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a.set("hello");
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b.set("hellox", 5);
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c.set(a);
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d.resize(5);
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memcpy(d.writable_str(), "helloz", 5);
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REPORTER_ASSERT(reporter, !a.isEmpty());
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REPORTER_ASSERT(reporter, a.size() == 5);
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REPORTER_ASSERT(reporter, a == b && a == c && a == d);
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REPORTER_ASSERT(reporter, a.equals("hello", 5));
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REPORTER_ASSERT(reporter, a.equals("hello"));
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REPORTER_ASSERT(reporter, !a.equals("help"));
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REPORTER_ASSERT(reporter, a.startsWith("hell"));
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REPORTER_ASSERT(reporter, a.startsWith('h'));
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REPORTER_ASSERT(reporter, !a.startsWith( "ell"));
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REPORTER_ASSERT(reporter, !a.startsWith( 'e'));
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REPORTER_ASSERT(reporter, a.startsWith(""));
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REPORTER_ASSERT(reporter, a.endsWith("llo"));
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REPORTER_ASSERT(reporter, a.endsWith('o'));
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REPORTER_ASSERT(reporter, !a.endsWith("ll" ));
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REPORTER_ASSERT(reporter, !a.endsWith('l'));
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REPORTER_ASSERT(reporter, a.endsWith(""));
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REPORTER_ASSERT(reporter, a.contains("he"));
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REPORTER_ASSERT(reporter, a.contains("ll"));
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REPORTER_ASSERT(reporter, a.contains("lo"));
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REPORTER_ASSERT(reporter, a.contains("hello"));
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REPORTER_ASSERT(reporter, !a.contains("hellohello"));
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REPORTER_ASSERT(reporter, a.contains(""));
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REPORTER_ASSERT(reporter, a.contains('e'));
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REPORTER_ASSERT(reporter, !a.contains('z'));
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SkString e(a);
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SkString f("hello");
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SkString g("helloz", 5);
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REPORTER_ASSERT(reporter, a == e && a == f && a == g);
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b.set("world");
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c = b;
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REPORTER_ASSERT(reporter, a != b && a != c && b == c);
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a.append(" world");
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e.append("worldz", 5);
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e.insert(5, " ");
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f.set("world");
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f.prepend("hello ");
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REPORTER_ASSERT(reporter, a.equals("hello world") && a == e && a == f);
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a.reset();
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b.resize(0);
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REPORTER_ASSERT(reporter, a.isEmpty() && b.isEmpty() && a == b);
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a.set("a");
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a.set("ab");
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a.set("abc");
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a.set("abcd");
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a.set("");
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a.appendS32(0x7FFFFFFFL);
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REPORTER_ASSERT(reporter, a.equals("2147483647"));
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a.set("");
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a.appendS32(0x80000001L);
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REPORTER_ASSERT(reporter, a.equals("-2147483647"));
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a.set("");
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a.appendS32(0x80000000L);
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REPORTER_ASSERT(reporter, a.equals("-2147483648"));
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a.set("");
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a.appendU32(0x7FFFFFFFUL);
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REPORTER_ASSERT(reporter, a.equals("2147483647"));
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a.set("");
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a.appendU32(0x80000001UL);
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REPORTER_ASSERT(reporter, a.equals("2147483649"));
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a.set("");
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a.appendU32(0xFFFFFFFFUL);
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REPORTER_ASSERT(reporter, a.equals("4294967295"));
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a.set("");
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a.appendS64(0x7FFFFFFFFFFFFFFFLL, 0);
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REPORTER_ASSERT(reporter, a.equals("9223372036854775807"));
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a.set("");
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a.appendS64(0x8000000000000001LL, 0);
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REPORTER_ASSERT(reporter, a.equals("-9223372036854775807"));
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a.set("");
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a.appendS64(0x8000000000000000LL, 0);
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REPORTER_ASSERT(reporter, a.equals("-9223372036854775808"));
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a.set("");
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a.appendS64(0x0000000001000000LL, 15);
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REPORTER_ASSERT(reporter, a.equals("000000016777216"));
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a.set("");
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a.appendS64(0xFFFFFFFFFF000000LL, 15);
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REPORTER_ASSERT(reporter, a.equals("-000000016777216"));
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a.set("");
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a.appendU64(0x7FFFFFFFFFFFFFFFULL, 0);
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REPORTER_ASSERT(reporter, a.equals("9223372036854775807"));
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a.set("");
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a.appendU64(0x8000000000000001ULL, 0);
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REPORTER_ASSERT(reporter, a.equals("9223372036854775809"));
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a.set("");
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a.appendU64(0xFFFFFFFFFFFFFFFFULL, 0);
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REPORTER_ASSERT(reporter, a.equals("18446744073709551615"));
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a.set("");
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a.appendU64(0x0000000001000000ULL, 15);
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REPORTER_ASSERT(reporter, a.equals("000000016777216"));
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a.printf("%i", 0);
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REPORTER_ASSERT(reporter, a.equals("0"));
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a.printf("%g", 3.14);
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REPORTER_ASSERT(reporter, a.equals("3.14"));
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a.printf("hello %s", "skia");
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REPORTER_ASSERT(reporter, a.equals("hello skia"));
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static const struct {
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SkScalar fValue;
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const char* fString;
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} gRec[] = {
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{ 0, "0" },
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{ SK_Scalar1, "1" },
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{ -SK_Scalar1, "-1" },
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{ SK_Scalar1/2, "0.5" },
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#if defined(SK_BUILD_FOR_WIN) && (_MSC_VER < 1900)
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{ 3.4028234e38f, "3.4028235e+038" },
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{ -3.4028234e38f, "-3.4028235e+038" },
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#else
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{ 3.4028234e38f, "3.4028235e+38" },
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{ -3.4028234e38f, "-3.4028235e+38" },
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#endif
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};
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for (size_t i = 0; i < SK_ARRAY_COUNT(gRec); i++) {
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a.reset();
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a.appendScalar(gRec[i].fValue);
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REPORTER_ASSERT(reporter, a.size() <= SkStrAppendScalar_MaxSize);
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if (!a.equals(gRec[i].fString)) {
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ERRORF(reporter, "received <%s> expected <%s>\n", a.c_str(), gRec[i].fString);
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}
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}
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REPORTER_ASSERT(reporter, SkStringPrintf("%i", 0).equals("0"));
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}
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static void assert_2000_spaces(skiatest::Reporter* reporter, const SkString& str) {
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REPORTER_ASSERT(reporter, str.size() == 2000);
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for (size_t i = 0; i < str.size(); ++i) {
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REPORTER_ASSERT(reporter, str[i] == ' ');
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}
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}
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DEF_TEST(String_overflow, reporter) {
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// 2000 is larger than the static buffer size inside SkString.cpp
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SkString a = SkStringPrintf("%2000s", " ");
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assert_2000_spaces(reporter, a);
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a = "X";
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a.printf("%2000s", " ");
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assert_2000_spaces(reporter, a);
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a = "X";
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a.appendf("%1999s", " ");
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REPORTER_ASSERT(reporter, a[0] == 'X');
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a[0] = ' ';
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assert_2000_spaces(reporter, a);
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a = "X";
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a.prependf("%1999s", " ");
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REPORTER_ASSERT(reporter, a[1999] == 'X');
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a[1999] = ' ';
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assert_2000_spaces(reporter, a);
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}
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DEF_TEST(String_SkStrSplit, r) {
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SkTArray<SkString> results;
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SkStrSplit("a-_b_c-dee--f-_-_-g-", "-_", &results);
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REPORTER_ASSERT(r, results.count() == 6);
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REPORTER_ASSERT(r, results[0].equals("a"));
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REPORTER_ASSERT(r, results[1].equals("b"));
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REPORTER_ASSERT(r, results[2].equals("c"));
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REPORTER_ASSERT(r, results[3].equals("dee"));
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REPORTER_ASSERT(r, results[4].equals("f"));
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REPORTER_ASSERT(r, results[5].equals("g"));
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results.reset();
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SkStrSplit("\n", "\n", &results);
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REPORTER_ASSERT(r, results.count() == 0);
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results.reset();
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SkStrSplit("", "\n", &results);
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REPORTER_ASSERT(r, results.count() == 0);
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results.reset();
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SkStrSplit("a", "\n", &results);
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REPORTER_ASSERT(r, results.count() == 1);
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REPORTER_ASSERT(r, results[0].equals("a"));
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}
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DEF_TEST(String_SkStrSplit_All, r) {
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SkTArray<SkString> results;
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SkStrSplit("a-_b_c-dee--f-_-_-g-", "-_", kStrict_SkStrSplitMode, &results);
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REPORTER_ASSERT(r, results.count() == 13);
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REPORTER_ASSERT(r, results[0].equals("a"));
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REPORTER_ASSERT(r, results[1].equals(""));
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REPORTER_ASSERT(r, results[2].equals("b"));
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REPORTER_ASSERT(r, results[3].equals("c"));
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REPORTER_ASSERT(r, results[4].equals("dee"));
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REPORTER_ASSERT(r, results[5].equals(""));
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REPORTER_ASSERT(r, results[6].equals("f"));
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REPORTER_ASSERT(r, results[7].equals(""));
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REPORTER_ASSERT(r, results[8].equals(""));
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REPORTER_ASSERT(r, results[9].equals(""));
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REPORTER_ASSERT(r, results[10].equals(""));
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REPORTER_ASSERT(r, results[11].equals("g"));
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REPORTER_ASSERT(r, results[12].equals(""));
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results.reset();
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SkStrSplit("\n", "\n", kStrict_SkStrSplitMode, &results);
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REPORTER_ASSERT(r, results.count() == 2);
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REPORTER_ASSERT(r, results[0].equals(""));
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REPORTER_ASSERT(r, results[1].equals(""));
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results.reset();
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SkStrSplit("", "\n", kStrict_SkStrSplitMode, &results);
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REPORTER_ASSERT(r, results.count() == 0);
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results.reset();
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SkStrSplit("a", "\n", kStrict_SkStrSplitMode, &results);
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REPORTER_ASSERT(r, results.count() == 1);
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REPORTER_ASSERT(r, results[0].equals("a"));
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results.reset();
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SkStrSplit(",,", ",", kStrict_SkStrSplitMode, &results);
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REPORTER_ASSERT(r, results.count() == 3);
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REPORTER_ASSERT(r, results[0].equals(""));
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REPORTER_ASSERT(r, results[1].equals(""));
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REPORTER_ASSERT(r, results[2].equals(""));
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results.reset();
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SkStrSplit(",a,b,", ",", kStrict_SkStrSplitMode, &results);
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REPORTER_ASSERT(r, results.count() == 4);
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REPORTER_ASSERT(r, results[0].equals(""));
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REPORTER_ASSERT(r, results[1].equals("a"));
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REPORTER_ASSERT(r, results[2].equals("b"));
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REPORTER_ASSERT(r, results[3].equals(""));
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}
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// https://bugs.chromium.org/p/skia/issues/detail?id=7107
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DEF_TEST(String_Threaded, r) {
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SkString str("foo");
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std::thread threads[5];
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for (auto& thread : threads) {
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thread = std::thread([&] {
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SkString copy = str;
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(void)copy.equals("test");
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});
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}
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for (auto& thread : threads) {
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thread.join();
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}
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}
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// Ensure that the string allocate doesn't internally overflow any calculations, and accidentally
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// let us create a string with a requested length longer than we can manage.
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DEF_TEST(String_huge, r) {
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// start testing slightly below max 32
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size_t size = UINT32_MAX - 16;
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// See where we crash, and manually check that its at the right point.
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//
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// To test, change the false to true
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while (false) {
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// On a 64bit build, this should crash when size == 1 << 32, since we can't store
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// that length in the string's header (which has a u32 slot for the length).
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//
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// On a 32bit build, this should crash the first time around, since we can't allocate
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// anywhere near this amount.
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//
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SkString str(size);
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size += 1;
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}
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}
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DEF_TEST(String_fromUTF16, r) {
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// test data produced with `iconv`.
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const uint16_t test1[] = {
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0xD835, 0xDCD0, 0xD835, 0xDCD1, 0xD835, 0xDCD2, 0xD835, 0xDCD3, 0xD835, 0xDCD4, 0x0020,
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0xD835, 0xDCD5, 0xD835, 0xDCD6, 0xD835, 0xDCD7, 0xD835, 0xDCD8, 0xD835, 0xDCD9
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};
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REPORTER_ASSERT(r, SkStringFromUTF16(test1, SK_ARRAY_COUNT(test1)).equals("𝓐𝓑𝓒𝓓𝓔 𝓕𝓖𝓗𝓘𝓙"));
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const uint16_t test2[] = {
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0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0020, 0x0046, 0x0047, 0x0048, 0x0049, 0x004A,
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};
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REPORTER_ASSERT(r, SkStringFromUTF16(test2, SK_ARRAY_COUNT(test2)).equals("ABCDE FGHIJ"));
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const uint16_t test3[] = {
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0x03B1, 0x03B2, 0x03B3, 0x03B4, 0x03B5, 0x0020, 0x03B6, 0x03B7, 0x03B8, 0x03B9, 0x03BA,
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};
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REPORTER_ASSERT(r, SkStringFromUTF16(test3, SK_ARRAY_COUNT(test3)).equals("αβγδε ζηθικ"));
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}
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static void test_va_list_print(skiatest::Reporter* r, const char format[], ...) {
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va_list args;
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va_start(args, format);
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SkString str("123");
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str.printVAList(format, args);
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REPORTER_ASSERT(r, str.equals("hello world"));
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va_end(args);
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}
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static void test_va_list_append(skiatest::Reporter* r, const char format[], ...) {
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va_list args;
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va_start(args, format);
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SkString str("123");
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str.appendVAList(format, args);
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REPORTER_ASSERT(r, str.equals("123hello world"));
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va_end(args);
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}
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static void test_va_list_prepend(skiatest::Reporter* r, const char format[], ...) {
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va_list args;
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va_start(args, format);
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SkString str("123");
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str.prependVAList(format, args);
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REPORTER_ASSERT(r, str.equals("hello world123"));
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va_end(args);
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}
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DEF_TEST(String_VAList, r) {
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test_va_list_print(r, "%s %c%c%c%c%c", "hello", 'w', 'o', 'r', 'l', 'd');
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test_va_list_append(r, "%s %c%c%c%c%c", "hello", 'w', 'o', 'r', 'l', 'd');
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test_va_list_prepend(r, "%s %c%c%c%c%c", "hello", 'w', 'o', 'r', 'l', 'd');
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}
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static void test_va_list_overflow_print(skiatest::Reporter* r, const char format[], ...) {
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va_list args;
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va_start(args, format);
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SkString str("X");
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str.printVAList(format, args);
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assert_2000_spaces(r, str);
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va_end(args);
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}
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static void test_va_list_overflow_append(skiatest::Reporter* r, const char format[], ...) {
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va_list args;
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va_start(args, format);
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SkString str("X");
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str.appendVAList(format, args);
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REPORTER_ASSERT(r, str[0] == 'X');
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str[0] = ' ';
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assert_2000_spaces(r, str);
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va_end(args);
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}
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static void test_va_list_overflow_prepend(skiatest::Reporter* r, const char format[], ...) {
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va_list args;
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va_start(args, format);
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SkString str("X");
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str.prependVAList(format, args);
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REPORTER_ASSERT(r, str[1999] == 'X');
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str[1999] = ' ';
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assert_2000_spaces(r, str);
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va_end(args);
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}
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DEF_TEST(String_VAList_overflow, r) {
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test_va_list_overflow_print(r, "%2000s", " ");
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test_va_list_overflow_append(r, "%1999s", " ");
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test_va_list_overflow_prepend(r, "%1999s", " ");
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}
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DEF_TEST(String_resize_to_nothing, r) {
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SkString s("hello world!");
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REPORTER_ASSERT(r, s.equals("hello world!"));
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s.resize(0);
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REPORTER_ASSERT(r, s.equals(""));
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}
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DEF_TEST(String_resize_shrink, r) {
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SkString s("hello world!");
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REPORTER_ASSERT(r, s.equals("hello world!"));
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s.resize(5);
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REPORTER_ASSERT(r, s.equals("hello"));
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}
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DEF_TEST(String_resize_grow, r) {
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SkString s("hello world!");
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REPORTER_ASSERT(r, s.equals("hello world!"));
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s.resize(25);
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REPORTER_ASSERT(r, 0 == strcmp(s.c_str(), "hello world!")); // no promises about data past \0
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REPORTER_ASSERT(r, s.size() == 25);
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}
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DEF_TEST(String_resize_after_assignment, r) {
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SkString s("hello world!");
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SkString t;
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t = s;
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REPORTER_ASSERT(r, s.equals("hello world!"));
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s.resize(25);
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REPORTER_ASSERT(r, 0 == strcmp(s.c_str(), "hello world!"));
|
||
REPORTER_ASSERT(r, s.size() == 25);
|
||
s.resize(5);
|
||
REPORTER_ASSERT(r, s.equals("hello"));
|
||
}
|
||
|
||
static void resize_helper_function(skiatest::Reporter* r, SkString s) {
|
||
REPORTER_ASSERT(r, s.equals("hello world!"));
|
||
s.resize(5);
|
||
REPORTER_ASSERT(r, s.equals("hello"));
|
||
s.resize(25);
|
||
REPORTER_ASSERT(r, 0 == strcmp(s.c_str(), "hello"));
|
||
REPORTER_ASSERT(r, s.size() == 25);
|
||
}
|
||
|
||
DEF_TEST(String_resize_after_copy_construction, r) {
|
||
SkString s("hello world!");
|
||
resize_helper_function(r, s);
|
||
}
|