dynarmic/externals/fmt/test/ostream-test.cc

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/*
std::ostream support tests
Copyright (c) 2012-2016, Victor Zverovich
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
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 "fmt/ostream.h"
#include <sstream>
#include "gmock/gmock.h"
#include "gtest-extra.h"
#include "util.h"
using fmt::format;
using fmt::FormatError;
std::ostream &operator<<(std::ostream &os, const Date &d) {
os << d.year() << '-' << d.month() << '-' << d.day();
return os;
}
std::wostream &operator<<(std::wostream &os, const Date &d) {
os << d.year() << L'-' << d.month() << L'-' << d.day();
return os;
}
enum TestEnum {};
std::ostream &operator<<(std::ostream &os, TestEnum) {
return os << "TestEnum";
}
enum TestEnum2 {A};
TEST(OStreamTest, Enum) {
EXPECT_FALSE(fmt::internal::ConvertToInt<TestEnum>::value);
EXPECT_EQ("TestEnum", fmt::format("{}", TestEnum()));
EXPECT_EQ("0", fmt::format("{}", A));
}
struct TestArgFormatter : fmt::BasicArgFormatter<TestArgFormatter, char> {
TestArgFormatter(fmt::BasicFormatter<char, TestArgFormatter> &f,
fmt::FormatSpec &s, const char *fmt)
: fmt::BasicArgFormatter<TestArgFormatter, char>(f, s, fmt) {}
};
TEST(OStreamTest, CustomArg) {
fmt::MemoryWriter writer;
typedef fmt::BasicFormatter<char, TestArgFormatter> Formatter;
Formatter formatter(fmt::ArgList(), writer);
fmt::FormatSpec spec;
TestArgFormatter af(formatter, spec, "}");
af.visit(fmt::internal::MakeArg<Formatter>(TestEnum()));
EXPECT_EQ("TestEnum", writer.str());
}
TEST(OStreamTest, Format) {
EXPECT_EQ("a string", format("{0}", TestString("a string")));
std::string s = format("The date is {0}", Date(2012, 12, 9));
EXPECT_EQ("The date is 2012-12-9", s);
Date date(2012, 12, 9);
EXPECT_EQ(L"The date is 2012-12-9",
format(L"The date is {0}", Date(2012, 12, 9)));
}
TEST(OStreamTest, FormatSpecs) {
EXPECT_EQ("def ", format("{0:<5}", TestString("def")));
EXPECT_EQ(" def", format("{0:>5}", TestString("def")));
EXPECT_THROW_MSG(format("{0:=5}", TestString("def")),
FormatError, "format specifier '=' requires numeric argument");
EXPECT_EQ(" def ", format("{0:^5}", TestString("def")));
EXPECT_EQ("def**", format("{0:*<5}", TestString("def")));
EXPECT_THROW_MSG(format("{0:+}", TestString()),
FormatError, "format specifier '+' requires numeric argument");
EXPECT_THROW_MSG(format("{0:-}", TestString()),
FormatError, "format specifier '-' requires numeric argument");
EXPECT_THROW_MSG(format("{0: }", TestString()),
FormatError, "format specifier ' ' requires numeric argument");
EXPECT_THROW_MSG(format("{0:#}", TestString()),
FormatError, "format specifier '#' requires numeric argument");
EXPECT_THROW_MSG(format("{0:05}", TestString()),
FormatError, "format specifier '0' requires numeric argument");
EXPECT_EQ("test ", format("{0:13}", TestString("test")));
EXPECT_EQ("test ", format("{0:{1}}", TestString("test"), 13));
EXPECT_EQ("te", format("{0:.2}", TestString("test")));
EXPECT_EQ("te", format("{0:.{1}}", TestString("test"), 2));
}
struct EmptyTest {};
std::ostream &operator<<(std::ostream &os, EmptyTest) {
return os << "";
}
TEST(OStreamTest, EmptyCustomOutput) {
EXPECT_EQ("", fmt::format("{}", EmptyTest()));
}
TEST(OStreamTest, Print) {
std::ostringstream os;
fmt::print(os, "Don't {}!", "panic");
EXPECT_EQ("Don't panic!", os.str());
}
TEST(OStreamTest, WriteToOStream) {
std::ostringstream os;
fmt::MemoryWriter w;
w << "foo";
fmt::internal::write(os, w);
EXPECT_EQ("foo", os.str());
}
TEST(OStreamTest, WriteToOStreamMaxSize) {
std::size_t max_size = std::numeric_limits<std::size_t>::max();
std::streamsize max_streamsize = std::numeric_limits<std::streamsize>::max();
if (max_size <= fmt::internal::to_unsigned(max_streamsize))
return;
class TestWriter : public fmt::BasicWriter<char> {
private:
struct TestBuffer : fmt::Buffer<char> {
explicit TestBuffer(std::size_t size) { size_ = size; }
void grow(std::size_t) {}
} buffer_;
public:
explicit TestWriter(std::size_t size)
: fmt::BasicWriter<char>(buffer_), buffer_(size) {}
} w(max_size);
struct MockStreamBuf : std::streambuf {
MOCK_METHOD2(xsputn, std::streamsize (const void *s, std::streamsize n));
std::streamsize xsputn(const char *s, std::streamsize n) {
const void *v = s;
return xsputn(v, n);
}
} buffer;
struct TestOStream : std::ostream {
explicit TestOStream(MockStreamBuf &buffer) : std::ostream(&buffer) {}
} os(buffer);
testing::InSequence sequence;
const char *data = 0;
std::size_t size = max_size;
do {
typedef fmt::internal::MakeUnsigned<std::streamsize>::Type UStreamSize;
UStreamSize n = std::min<UStreamSize>(
size, fmt::internal::to_unsigned(max_streamsize));
EXPECT_CALL(buffer, xsputn(data, static_cast<std::streamsize>(n)))
.WillOnce(testing::Return(max_streamsize));
data += n;
size -= static_cast<std::size_t>(n);
} while (size != 0);
fmt::internal::write(os, w);
}
Squashed 'externals/fmt/' changes from 39834389..135ab5cf 135ab5cf Update version 93d95f17 Fix markup 4f15c72f Fix markup e9b19414 Automatically add package to release c3d1f604 Fix markup c96062bf Update changelog and version number f9c97de4 Add note about errno to the documentation 62df6f27 CMakeLists: Use GNUInstallDirs to set install location 493586cb Fix overflow check 1d751bc6 fix warning in header: signed/unsigned comparison 11415bce Update usage.rst 9982dd01 Fix for warning C5030 in VS2015 42e88c4f Silenced MSVC 2017 constant if expression warning 7a9c1ba1 FMT_VARIADIC_CONST - Support for const variadic methods (#591) 324415c0 Use allocator_traits if available. 5f39721c Fix a warning ca96acbe Add examples 708d9509 fix(Clang CodeGen): remove warnings 9328a074 Fix handling of fixed enums in clang (#580) 2c077dd4 Enable stream exceptions (#581) 933a33a7 Added MSVC checking for support for string_view. bef89db6 Fix a bogus -Wduplicated-branches gcc warning (#573) 2a619d96 Make format work with C++17 std::string_view (#571) e051de37 Use less version 2.6.1 and sudo to fix npm install issues on travis 5de459bf Suppress Clang's warning on zero as a null pointer 16589534 Make ArgMap::init not explicitly instantiated (#563) 3e75d3e0 Fix handling of types convertible to int 89654cd1 to_wstring added 37eb419a Fix noreturn attribute detection (#555) 14d85349 Explicitly cast range length to std::size_t to prevent conversion warnings c2201ce0 Accept wide chars as integers to prevent conversion warning 6efbccb3 Add one more CMake warning fix 032c8380 Fix a segfault in test on glibc 2.26 #551, take 2 6655e804 Fix a segfault in test on glibc 2.26 #551 d16c4d20 Suppress warning about missing noreturn attribute (#549) 9c56a8ce Make format_arg() accept class hierarchies ca0e3830 Update README.rst 81790d72 Update format.h to remove C4574 error on MSVC 14.2 30283443 Fix undefined behavior in UDL macro 4045d7fe Fix warning about missing ' character 89c3bc58 Remove warning C4668 in MSVC for FMT_GCC_VERSION and FMT_HAS_GXX_CXX11 4af9421f Adding OpenSpace to the list of projects 1a398b54 Fixed CMake CMP0048 warning. 589ccc16 Bump version c3817046 Add an error on broken includes 16bdd842 Update scripts b492316d Update version list 91f4ce02 Automatically update version in release script (#431) git-subtree-dir: externals/fmt git-subtree-split: 135ab5cf71ed731fc9fa0653051e7d4884a3652f
2020-04-22 21:41:46 +02:00
struct ConvertibleToInt {
template <typename ValueType>
operator ValueType() const {
return 0;
}
friend std::ostream &operator<<(std::ostream &o, ConvertibleToInt) {
return o << "foo";
}
};
TEST(FormatTest, FormatConvertibleToInt) {
EXPECT_EQ("foo", fmt::format("{}", ConvertibleToInt()));
}