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Merge grisu-test into format-test

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This commit is contained in:
Victor Zverovich 2020-09-26 08:23:16 -07:00
parent 762c33a964
commit a905d8f704
3 changed files with 21 additions and 83 deletions
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2
test/CMakeLists.txt
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@ -91,8 +91,6 @@ add_fmt_test(assert-test)
add_fmt_test(chrono-test)
add_fmt_test(color-test)
add_fmt_test(core-test)
add_fmt_test(grisu-test)
target_compile_definitions(grisu-test PRIVATE FMT_USE_GRISU=1)
add_fmt_test(gtest-extra-test)
add_fmt_test(format-test mock-allocator.h)
if (MSVC)

26
test/format-test.cc
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@ -1277,14 +1277,30 @@ TEST(FormatterTest, PrecisionRounding) {
EXPECT_EQ("1.000", format("{:.3f}", 0.9999));
EXPECT_EQ("0.00123", format("{:.3}", 0.00123));
EXPECT_EQ("0.1", format("{:.16g}", 0.1));
// Trigger rounding error in Grisu by a carefully chosen number.
auto n = 3788512123356.985352;
char buffer[64];
safe_sprintf(buffer, "%f", n);
EXPECT_EQ(buffer, format("{:f}", n));
EXPECT_EQ("1", fmt::format("{:.0}", 1.0));
EXPECT_EQ("225.51575035152063720",
fmt::format("{:.17f}", 225.51575035152064));
EXPECT_EQ("-761519619559038.2", fmt::format("{:.1f}", -761519619559038.2));
EXPECT_EQ("1.9156918820264798e-56",
fmt::format("{}", 1.9156918820264798e-56));
EXPECT_EQ("0.0000", fmt::format("{:.4f}", 7.2809479766055470e-15));
// Trigger a rounding error in Grisu by a specially chosen number.
EXPECT_EQ("3788512123356.985352", format("{:f}", 3788512123356.985352));
}
TEST(FormatterTest, PrettifyFloat) {
EXPECT_EQ("0.0001", fmt::format("{}", 1e-4));
EXPECT_EQ("1e-05", fmt::format("{}", 1e-5));
EXPECT_EQ("9.999e-05", fmt::format("{}", 9.999e-5));
EXPECT_EQ("10000000000", fmt::format("{}", 1e10));
EXPECT_EQ("100000000000", fmt::format("{}", 1e11));
EXPECT_EQ("12340000000", fmt::format("{}", 1234e7));
EXPECT_EQ("12.34", fmt::format("{}", 1234e-2));
EXPECT_EQ("0.001234", fmt::format("{}", 1234e-6));
EXPECT_EQ("0.1", fmt::format("{}", 0.1f));
EXPECT_EQ("0.10000000149011612", fmt::format("{}", double(0.1f)));
EXPECT_EQ("1.3563156e-19", fmt::format("{}", 1.35631564e-19f));
}
TEST(FormatterTest, FormatNaN) {

76
test/grisu-test.cc
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@ -1,76 +0,0 @@
// Formatting library for C++ - Grisu tests
//
// Copyright (c) 2012 - present, Victor Zverovich
// All rights reserved.
//
// For the license information refer to format.h.
#include "fmt/format.h"
#include "gtest.h"
static bool reported_skipped;
#undef TEST
#define TEST(test_fixture, test_name) \
void test_fixture##test_name(); \
GTEST_TEST(test_fixture, test_name) { \
if (FMT_USE_GRISU) { \
test_fixture##test_name(); \
} else if (!reported_skipped) { \
reported_skipped = true; \
fmt::print("Skipping Grisu tests.\n"); \
} \
} \
void test_fixture##test_name()
TEST(GrisuTest, NaN) {
auto nan = std::numeric_limits<double>::quiet_NaN();
EXPECT_EQ("nan", fmt::format("{}", nan));
EXPECT_EQ("-nan", fmt::format("{}", -nan));
}
TEST(GrisuTest, Inf) {
auto inf = std::numeric_limits<double>::infinity();
EXPECT_EQ("inf", fmt::format("{}", inf));
EXPECT_EQ("-inf", fmt::format("{}", -inf));
}
TEST(GrisuTest, Zero) { EXPECT_EQ("0", fmt::format("{}", 0.0)); }
TEST(GrisuTest, Round) {
EXPECT_EQ("1.9156918820264798e-56",
fmt::format("{}", 1.9156918820264798e-56));
EXPECT_EQ("0.0000", fmt::format("{:.4f}", 7.2809479766055470e-15));
}
TEST(GrisuTest, Prettify) {
EXPECT_EQ("0.0001", fmt::format("{}", 1e-4));
EXPECT_EQ("1e-05", fmt::format("{}", 1e-5));
EXPECT_EQ("9.999e-05", fmt::format("{}", 9.999e-5));
EXPECT_EQ("10000000000", fmt::format("{}", 1e10));
EXPECT_EQ("100000000000", fmt::format("{}", 1e11));
EXPECT_EQ("12340000000", fmt::format("{}", 1234e7));
EXPECT_EQ("12.34", fmt::format("{}", 1234e-2));
EXPECT_EQ("0.001234", fmt::format("{}", 1234e-6));
EXPECT_EQ("0.1", fmt::format("{}", 0.1f));
EXPECT_EQ("0.10000000149011612", fmt::format("{}", double(0.1f)));
EXPECT_EQ("1.3563156e-19", fmt::format("{}", 1.35631564e-19f));
}
TEST(GrisuTest, ZeroPrecision) { EXPECT_EQ("1", fmt::format("{:.0}", 1.0)); }
TEST(GrisuTest, Fallback) {
EXPECT_EQ("1e+23", fmt::format("{}", 1e23));
EXPECT_EQ("9e-265", fmt::format("{}", 9e-265));
EXPECT_EQ("5.423717798060526e+125",
fmt::format("{}", 5.423717798060526e+125));
EXPECT_EQ("1.372371880954233e-288",
fmt::format("{}", 1.372371880954233e-288));
EXPECT_EQ("55388492.622190244", fmt::format("{}", 55388492.622190244));
EXPECT_EQ("2.2506787569811123e-253",
fmt::format("{}", 2.2506787569811123e-253));
EXPECT_EQ("1103618912042992.8", fmt::format("{}", 1103618912042992.8));
// pow(2, -25) - assymetric boundaries:
EXPECT_EQ("2.9802322387695312e-08",
fmt::format("{}", 2.9802322387695312e-08));
}