| /* |
| Utility tests. |
| |
| Copyright (c) 2012-2014, 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 "test-assert.h" |
| |
| #include <cfloat> |
| #include <climits> |
| #include <cstring> |
| #include <functional> |
| #include <limits> |
| |
| #if FMT_USE_TYPE_TRAITS |
| # include <type_traits> |
| #endif |
| |
| #include "gmock/gmock.h" |
| #include "gtest-extra.h" |
| #include "mock-allocator.h" |
| #include "util.h" |
| |
| // Check if format.h compiles with windows.h included. |
| #ifdef _WIN32 |
| # include <windows.h> |
| #endif |
| |
| #include "fmt/format.h" |
| |
| #undef min |
| #undef max |
| |
| using fmt::basic_format_arg; |
| using fmt::format_arg; |
| using fmt::Buffer; |
| using fmt::StringRef; |
| using fmt::internal::MemoryBuffer; |
| using fmt::internal::Value; |
| |
| using testing::_; |
| using testing::Return; |
| using testing::StrictMock; |
| |
| namespace { |
| |
| struct Test {}; |
| |
| template <typename Char> |
| void format_value(fmt::BasicWriter<Char> &w, Test, |
| fmt::basic_format_context<Char> &) { |
| w << "test"; |
| } |
| |
| template <typename Char, typename T> |
| basic_format_arg<Char> make_arg(const T &value) { |
| typedef fmt::internal::MakeArg< fmt::basic_format_context<Char> > MakeArg; |
| return MakeArg(value); |
| } |
| } // namespace |
| |
| void CheckForwarding( |
| MockAllocator<int> &alloc, AllocatorRef< MockAllocator<int> > &ref) { |
| int mem; |
| // Check if value_type is properly defined. |
| AllocatorRef< MockAllocator<int> >::value_type *ptr = &mem; |
| // Check forwarding. |
| EXPECT_CALL(alloc, allocate(42)).WillOnce(Return(ptr)); |
| ref.allocate(42); |
| EXPECT_CALL(alloc, deallocate(ptr, 42)); |
| ref.deallocate(ptr, 42); |
| } |
| |
| TEST(AllocatorTest, AllocatorRef) { |
| StrictMock< MockAllocator<int> > alloc; |
| typedef AllocatorRef< MockAllocator<int> > TestAllocatorRef; |
| TestAllocatorRef ref(&alloc); |
| // Check if AllocatorRef forwards to the underlying allocator. |
| CheckForwarding(alloc, ref); |
| TestAllocatorRef ref2(ref); |
| CheckForwarding(alloc, ref2); |
| TestAllocatorRef ref3; |
| EXPECT_EQ(0, ref3.get()); |
| ref3 = ref; |
| CheckForwarding(alloc, ref3); |
| } |
| |
| #if FMT_USE_TYPE_TRAITS |
| TEST(BufferTest, Noncopyable) { |
| EXPECT_FALSE(std::is_copy_constructible<Buffer<char> >::value); |
| EXPECT_FALSE(std::is_copy_assignable<Buffer<char> >::value); |
| } |
| |
| TEST(BufferTest, Nonmoveable) { |
| EXPECT_FALSE(std::is_move_constructible<Buffer<char> >::value); |
| EXPECT_FALSE(std::is_move_assignable<Buffer<char> >::value); |
| } |
| #endif |
| |
| // A test buffer with a dummy grow method. |
| template <typename T> |
| struct TestBuffer : Buffer<T> { |
| void grow(std::size_t size) { this->capacity_ = size; } |
| }; |
| |
| template <typename T> |
| struct MockBuffer : Buffer<T> { |
| MOCK_METHOD1(do_grow, void (std::size_t size)); |
| |
| void grow(std::size_t size) { |
| this->capacity_ = size; |
| do_grow(size); |
| } |
| |
| MockBuffer() {} |
| MockBuffer(T *ptr) : Buffer<T>(ptr) {} |
| MockBuffer(T *ptr, std::size_t capacity) : Buffer<T>(ptr, capacity) {} |
| }; |
| |
| TEST(BufferTest, Ctor) { |
| { |
| MockBuffer<int> buffer; |
| EXPECT_EQ(0, &buffer[0]); |
| EXPECT_EQ(0u, buffer.size()); |
| EXPECT_EQ(0u, buffer.capacity()); |
| } |
| { |
| int dummy; |
| MockBuffer<int> buffer(&dummy); |
| EXPECT_EQ(&dummy, &buffer[0]); |
| EXPECT_EQ(0u, buffer.size()); |
| EXPECT_EQ(0u, buffer.capacity()); |
| } |
| { |
| int dummy; |
| std::size_t capacity = std::numeric_limits<std::size_t>::max(); |
| MockBuffer<int> buffer(&dummy, capacity); |
| EXPECT_EQ(&dummy, &buffer[0]); |
| EXPECT_EQ(0u, buffer.size()); |
| EXPECT_EQ(capacity, buffer.capacity()); |
| } |
| } |
| |
| struct DyingBuffer : TestBuffer<int> { |
| MOCK_METHOD0(die, void()); |
| ~DyingBuffer() { die(); } |
| }; |
| |
| TEST(BufferTest, VirtualDtor) { |
| typedef StrictMock<DyingBuffer> StictMockBuffer; |
| StictMockBuffer *mock_buffer = new StictMockBuffer(); |
| EXPECT_CALL(*mock_buffer, die()); |
| Buffer<int> *buffer = mock_buffer; |
| delete buffer; |
| } |
| |
| TEST(BufferTest, Access) { |
| char data[10]; |
| MockBuffer<char> buffer(data, sizeof(data)); |
| buffer[0] = 11; |
| EXPECT_EQ(11, buffer[0]); |
| buffer[3] = 42; |
| EXPECT_EQ(42, *(&buffer[0] + 3)); |
| const Buffer<char> &const_buffer = buffer; |
| EXPECT_EQ(42, const_buffer[3]); |
| } |
| |
| TEST(BufferTest, Resize) { |
| char data[123]; |
| MockBuffer<char> buffer(data, sizeof(data)); |
| buffer[10] = 42; |
| EXPECT_EQ(42, buffer[10]); |
| buffer.resize(20); |
| EXPECT_EQ(20u, buffer.size()); |
| EXPECT_EQ(123u, buffer.capacity()); |
| EXPECT_EQ(42, buffer[10]); |
| buffer.resize(5); |
| EXPECT_EQ(5u, buffer.size()); |
| EXPECT_EQ(123u, buffer.capacity()); |
| EXPECT_EQ(42, buffer[10]); |
| // Check if resize calls grow. |
| EXPECT_CALL(buffer, do_grow(124)); |
| buffer.resize(124); |
| EXPECT_CALL(buffer, do_grow(200)); |
| buffer.resize(200); |
| } |
| |
| TEST(BufferTest, Clear) { |
| TestBuffer<char> buffer; |
| buffer.resize(20); |
| buffer.clear(); |
| EXPECT_EQ(0u, buffer.size()); |
| EXPECT_EQ(20u, buffer.capacity()); |
| } |
| |
| TEST(BufferTest, PushBack) { |
| int data[15]; |
| MockBuffer<int> buffer(data, 10); |
| buffer.push_back(11); |
| EXPECT_EQ(11, buffer[0]); |
| EXPECT_EQ(1u, buffer.size()); |
| buffer.resize(10); |
| EXPECT_CALL(buffer, do_grow(11)); |
| buffer.push_back(22); |
| EXPECT_EQ(22, buffer[10]); |
| EXPECT_EQ(11u, buffer.size()); |
| } |
| |
| TEST(BufferTest, Append) { |
| char data[15]; |
| MockBuffer<char> buffer(data, 10); |
| const char *test = "test"; |
| buffer.append(test, test + 5); |
| EXPECT_STREQ(test, &buffer[0]); |
| EXPECT_EQ(5u, buffer.size()); |
| buffer.resize(10); |
| EXPECT_CALL(buffer, do_grow(12)); |
| buffer.append(test, test + 2); |
| EXPECT_EQ('t', buffer[10]); |
| EXPECT_EQ('e', buffer[11]); |
| EXPECT_EQ(12u, buffer.size()); |
| } |
| |
| TEST(BufferTest, AppendAllocatesEnoughStorage) { |
| char data[19]; |
| MockBuffer<char> buffer(data, 10); |
| const char *test = "abcdefgh"; |
| buffer.resize(10); |
| EXPECT_CALL(buffer, do_grow(19)); |
| buffer.append(test, test + 9); |
| } |
| |
| TEST(MemoryBufferTest, Ctor) { |
| MemoryBuffer<char, 123> buffer; |
| EXPECT_EQ(0u, buffer.size()); |
| EXPECT_EQ(123u, buffer.capacity()); |
| } |
| |
| #if FMT_USE_RVALUE_REFERENCES |
| |
| typedef AllocatorRef< std::allocator<char> > TestAllocator; |
| |
| void check_move_buffer(const char *str, |
| MemoryBuffer<char, 5, TestAllocator> &buffer) { |
| std::allocator<char> *alloc = buffer.get_allocator().get(); |
| MemoryBuffer<char, 5, TestAllocator> buffer2(std::move(buffer)); |
| // Move shouldn't destroy the inline content of the first buffer. |
| EXPECT_EQ(str, std::string(&buffer[0], buffer.size())); |
| EXPECT_EQ(str, std::string(&buffer2[0], buffer2.size())); |
| EXPECT_EQ(5u, buffer2.capacity()); |
| // Move should transfer allocator. |
| EXPECT_EQ(0, buffer.get_allocator().get()); |
| EXPECT_EQ(alloc, buffer2.get_allocator().get()); |
| } |
| |
| TEST(MemoryBufferTest, MoveCtor) { |
| std::allocator<char> alloc; |
| MemoryBuffer<char, 5, TestAllocator> buffer((TestAllocator(&alloc))); |
| const char test[] = "test"; |
| buffer.append(test, test + 4); |
| check_move_buffer("test", buffer); |
| // Adding one more character fills the inline buffer, but doesn't cause |
| // dynamic allocation. |
| buffer.push_back('a'); |
| check_move_buffer("testa", buffer); |
| const char *inline_buffer_ptr = &buffer[0]; |
| // Adding one more character causes the content to move from the inline to |
| // a dynamically allocated buffer. |
| buffer.push_back('b'); |
| MemoryBuffer<char, 5, TestAllocator> buffer2(std::move(buffer)); |
| // Move should rip the guts of the first buffer. |
| EXPECT_EQ(inline_buffer_ptr, &buffer[0]); |
| EXPECT_EQ("testab", std::string(&buffer2[0], buffer2.size())); |
| EXPECT_GT(buffer2.capacity(), 5u); |
| } |
| |
| void check_move_assign_buffer(const char *str, MemoryBuffer<char, 5> &buffer) { |
| MemoryBuffer<char, 5> buffer2; |
| buffer2 = std::move(buffer); |
| // Move shouldn't destroy the inline content of the first buffer. |
| EXPECT_EQ(str, std::string(&buffer[0], buffer.size())); |
| EXPECT_EQ(str, std::string(&buffer2[0], buffer2.size())); |
| EXPECT_EQ(5u, buffer2.capacity()); |
| } |
| |
| TEST(MemoryBufferTest, MoveAssignment) { |
| MemoryBuffer<char, 5> buffer; |
| const char test[] = "test"; |
| buffer.append(test, test + 4); |
| check_move_assign_buffer("test", buffer); |
| // Adding one more character fills the inline buffer, but doesn't cause |
| // dynamic allocation. |
| buffer.push_back('a'); |
| check_move_assign_buffer("testa", buffer); |
| const char *inline_buffer_ptr = &buffer[0]; |
| // Adding one more character causes the content to move from the inline to |
| // a dynamically allocated buffer. |
| buffer.push_back('b'); |
| MemoryBuffer<char, 5> buffer2; |
| buffer2 = std::move(buffer); |
| // Move should rip the guts of the first buffer. |
| EXPECT_EQ(inline_buffer_ptr, &buffer[0]); |
| EXPECT_EQ("testab", std::string(&buffer2[0], buffer2.size())); |
| EXPECT_GT(buffer2.capacity(), 5u); |
| } |
| |
| #endif // FMT_USE_RVALUE_REFERENCES |
| |
| TEST(MemoryBufferTest, Grow) { |
| typedef AllocatorRef< MockAllocator<int> > Allocator; |
| typedef MemoryBuffer<int, 10, Allocator> Base; |
| MockAllocator<int> alloc; |
| struct TestMemoryBuffer : Base { |
| TestMemoryBuffer(Allocator alloc) : Base(alloc) {} |
| void grow(std::size_t size) { Base::grow(size); } |
| } buffer((Allocator(&alloc))); |
| buffer.resize(7); |
| using fmt::internal::to_unsigned; |
| for (int i = 0; i < 7; ++i) |
| buffer[to_unsigned(i)] = i * i; |
| EXPECT_EQ(10u, buffer.capacity()); |
| int mem[20]; |
| mem[7] = 0xdead; |
| EXPECT_CALL(alloc, allocate(20)).WillOnce(Return(mem)); |
| buffer.grow(20); |
| EXPECT_EQ(20u, buffer.capacity()); |
| // Check if size elements have been copied |
| for (int i = 0; i < 7; ++i) |
| EXPECT_EQ(i * i, buffer[to_unsigned(i)]); |
| // and no more than that. |
| EXPECT_EQ(0xdead, buffer[7]); |
| EXPECT_CALL(alloc, deallocate(mem, 20)); |
| } |
| |
| TEST(MemoryBufferTest, Allocator) { |
| typedef AllocatorRef< MockAllocator<char> > TestAllocator; |
| MemoryBuffer<char, 10, TestAllocator> buffer; |
| EXPECT_EQ(0, buffer.get_allocator().get()); |
| StrictMock< MockAllocator<char> > alloc; |
| char mem; |
| { |
| MemoryBuffer<char, 10, TestAllocator> buffer2((TestAllocator(&alloc))); |
| EXPECT_EQ(&alloc, buffer2.get_allocator().get()); |
| std::size_t size = 2 * fmt::internal::INLINE_BUFFER_SIZE; |
| EXPECT_CALL(alloc, allocate(size)).WillOnce(Return(&mem)); |
| buffer2.reserve(size); |
| EXPECT_CALL(alloc, deallocate(&mem, size)); |
| } |
| } |
| |
| TEST(MemoryBufferTest, ExceptionInDeallocate) { |
| typedef AllocatorRef< MockAllocator<char> > TestAllocator; |
| StrictMock< MockAllocator<char> > alloc; |
| MemoryBuffer<char, 10, TestAllocator> buffer((TestAllocator(&alloc))); |
| std::size_t size = 2 * fmt::internal::INLINE_BUFFER_SIZE; |
| std::vector<char> mem(size); |
| { |
| EXPECT_CALL(alloc, allocate(size)).WillOnce(Return(&mem[0])); |
| buffer.resize(size); |
| std::fill(&buffer[0], &buffer[0] + size, 'x'); |
| } |
| std::vector<char> mem2(2 * size); |
| { |
| EXPECT_CALL(alloc, allocate(2 * size)).WillOnce(Return(&mem2[0])); |
| std::exception e; |
| EXPECT_CALL(alloc, deallocate(&mem[0], size)).WillOnce(testing::Throw(e)); |
| EXPECT_THROW(buffer.reserve(2 * size), std::exception); |
| EXPECT_EQ(&mem2[0], &buffer[0]); |
| // Check that the data has been copied. |
| for (std::size_t i = 0; i < size; ++i) |
| EXPECT_EQ('x', buffer[i]); |
| } |
| EXPECT_CALL(alloc, deallocate(&mem2[0], 2 * size)); |
| } |
| |
| TEST(UtilTest, Increment) { |
| char s[10] = "123"; |
| increment(s); |
| EXPECT_STREQ("124", s); |
| s[2] = '8'; |
| increment(s); |
| EXPECT_STREQ("129", s); |
| increment(s); |
| EXPECT_STREQ("130", s); |
| s[1] = s[2] = '9'; |
| increment(s); |
| EXPECT_STREQ("200", s); |
| } |
| |
| TEST(UtilTest, FormatArgs) { |
| fmt::format_args args; |
| EXPECT_FALSE(args[1]); |
| } |
| |
| struct CustomFormatter { |
| typedef char char_type; |
| bool called; |
| }; |
| |
| void format_value(fmt::Writer &, const Test &, CustomFormatter &ctx) { |
| ctx.called = true; |
| } |
| |
| TEST(UtilTest, MakeValueWithCustomFormatter) { |
| ::Test t; |
| format_arg arg = fmt::internal::MakeValue<CustomFormatter>(t); |
| CustomFormatter ctx = {false}; |
| fmt::MemoryWriter w; |
| arg.custom.format(&w, &t, &ctx); |
| EXPECT_TRUE(ctx.called); |
| } |
| |
| namespace fmt { |
| namespace internal { |
| |
| bool operator==(Value::CustomValue lhs, Value::CustomValue rhs) { |
| return lhs.value == rhs.value; |
| } |
| |
| template <typename T> |
| bool operator==(Value::StringValue<T> lhs, Value::StringValue<T> rhs) { |
| return std::basic_string<T>(lhs.value, lhs.size) == |
| std::basic_string<T>(rhs.value, rhs.size); |
| } |
| } |
| } |
| |
| template <typename T> |
| struct MockVisitor { |
| // Use a unique result type to make sure that there are no undesirable |
| // conversions. |
| struct Result {}; |
| |
| MockVisitor() { |
| ON_CALL(*this, visit(_)).WillByDefault(Return(Result())); |
| } |
| |
| MOCK_METHOD1_T(visit, Result (T value)); |
| MOCK_METHOD0_T(unexpected, void ()); |
| |
| Result operator()(T value) { return visit(value); } |
| |
| template <typename U> |
| Result operator()(U value) { |
| unexpected(); |
| return Result(); |
| } |
| }; |
| |
| template <typename T> |
| struct VisitType { typedef T Type; }; |
| |
| #define VISIT_TYPE(Type_, VisitType_) \ |
| template <> \ |
| struct VisitType<Type_> { typedef VisitType_ Type; } |
| |
| VISIT_TYPE(signed char, int); |
| VISIT_TYPE(unsigned char, unsigned); |
| VISIT_TYPE(short, int); |
| VISIT_TYPE(unsigned short, unsigned); |
| |
| #if LONG_MAX == INT_MAX |
| VISIT_TYPE(long, int); |
| VISIT_TYPE(unsigned long, unsigned); |
| #else |
| VISIT_TYPE(long, fmt::LongLong); |
| VISIT_TYPE(unsigned long, fmt::ULongLong); |
| #endif |
| |
| VISIT_TYPE(float, double); |
| |
| #define CHECK_ARG_(Char, expected, value) { \ |
| testing::StrictMock<MockVisitor<decltype(expected)>> visitor; \ |
| EXPECT_CALL(visitor, visit(expected)); \ |
| fmt::visit(visitor, make_arg<Char>(value)); \ |
| } |
| |
| #define CHECK_ARG(value) { \ |
| typename VisitType<decltype(value)>::Type expected = value; \ |
| CHECK_ARG_(char, expected, value) \ |
| CHECK_ARG_(wchar_t, expected, value) \ |
| } |
| |
| template <typename T> |
| class NumericArgTest : public testing::Test {}; |
| |
| typedef ::testing::Types< |
| bool, signed char, unsigned char, signed, unsigned short, |
| int, unsigned, long, unsigned long, fmt::LongLong, fmt::ULongLong, |
| float, double, long double> Types; |
| TYPED_TEST_CASE(NumericArgTest, Types); |
| |
| template <typename T> |
| typename std::enable_if<std::is_integral<T>::value, T>::type test_value() { |
| return static_cast<T>(42); |
| } |
| |
| template <typename T> |
| typename std::enable_if<std::is_floating_point<T>::value, T>::type |
| test_value() { |
| return static_cast<T>(4.2); |
| } |
| |
| TYPED_TEST(NumericArgTest, MakeAndVisit) { |
| CHECK_ARG(test_value<TypeParam>()); |
| CHECK_ARG(std::numeric_limits<TypeParam>::min()); |
| CHECK_ARG(std::numeric_limits<TypeParam>::max()); |
| } |
| |
| TEST(UtilTest, CharArg) { |
| CHECK_ARG_(char, 'a', 'a'); |
| CHECK_ARG_(wchar_t, L'a', 'a'); |
| CHECK_ARG_(wchar_t, L'a', L'a'); |
| } |
| |
| TEST(UtilTest, StringArg) { |
| char str_data[] = "test"; |
| char *str = str_data; |
| const char *cstr = str; |
| CHECK_ARG_(char, cstr, str); |
| CHECK_ARG_(wchar_t, cstr, str); |
| CHECK_ARG(cstr); |
| |
| Value::StringValue<char> strval = {str, 4}; |
| CHECK_ARG_(char, strval, std::string(str)); |
| CHECK_ARG_(wchar_t, strval, std::string(str)); |
| CHECK_ARG_(char, strval, fmt::StringRef(str)); |
| CHECK_ARG_(wchar_t, strval, fmt::StringRef(str)); |
| } |
| |
| TEST(UtilTest, WStringArg) { |
| wchar_t str_data[] = L"test"; |
| wchar_t *str = str_data; |
| const wchar_t *cstr = str; |
| |
| Value::StringValue<wchar_t> strval = {str, 4}; |
| CHECK_ARG_(wchar_t, strval, str); |
| CHECK_ARG_(wchar_t, strval, cstr); |
| CHECK_ARG_(wchar_t, strval, std::wstring(str)); |
| CHECK_ARG_(wchar_t, strval, fmt::WStringRef(str)); |
| } |
| |
| TEST(UtilTest, PointerArg) { |
| void *p = 0; |
| const void *cp = 0; |
| CHECK_ARG_(char, cp, p); |
| CHECK_ARG_(wchar_t, cp, p); |
| CHECK_ARG(cp); |
| } |
| |
| TEST(UtilTest, CustomArg) { |
| ::Test test; |
| typedef MockVisitor<Value::CustomValue> Visitor; |
| testing::StrictMock<Visitor> visitor; |
| EXPECT_CALL(visitor, visit(_)).WillOnce( |
| testing::Invoke([&](Value::CustomValue custom) { |
| EXPECT_EQ(&test, custom.value); |
| fmt::MemoryWriter w; |
| fmt::format_context ctx("}", fmt::format_args()); |
| custom.format(&w, &test, &ctx); |
| EXPECT_EQ("test", w.str()); |
| return Visitor::Result(); |
| })); |
| fmt::visit(visitor, make_arg<char>(test)); |
| } |
| |
| TEST(ArgVisitorTest, VisitInvalidArg) { |
| format_arg arg = format_arg(); |
| EXPECT_ASSERT(visit(MockVisitor<int>(), arg), "invalid argument type"); |
| } |
| |
| // Tests fmt::internal::count_digits for integer type Int. |
| template <typename Int> |
| void test_count_digits() { |
| for (Int i = 0; i < 10; ++i) |
| EXPECT_EQ(1u, fmt::internal::count_digits(i)); |
| for (Int i = 1, n = 1, |
| end = std::numeric_limits<Int>::max() / 10; n <= end; ++i) { |
| n *= 10; |
| EXPECT_EQ(i, fmt::internal::count_digits(n - 1)); |
| EXPECT_EQ(i + 1, fmt::internal::count_digits(n)); |
| } |
| } |
| |
| TEST(UtilTest, StringRef) { |
| // Test that StringRef::size() returns string length, not buffer size. |
| char str[100] = "some string"; |
| EXPECT_EQ(std::strlen(str), StringRef(str).size()); |
| EXPECT_LT(std::strlen(str), sizeof(str)); |
| } |
| |
| // Check StringRef's comparison operator. |
| template <template <typename> class Op> |
| void CheckOp() { |
| const char *inputs[] = {"foo", "fop", "fo"}; |
| std::size_t num_inputs = sizeof(inputs) / sizeof(*inputs); |
| for (std::size_t i = 0; i < num_inputs; ++i) { |
| for (std::size_t j = 0; j < num_inputs; ++j) { |
| StringRef lhs(inputs[i]), rhs(inputs[j]); |
| EXPECT_EQ(Op<int>()(lhs.compare(rhs), 0), Op<StringRef>()(lhs, rhs)); |
| } |
| } |
| } |
| |
| TEST(UtilTest, StringRefCompare) { |
| EXPECT_EQ(0, StringRef("foo").compare(StringRef("foo"))); |
| EXPECT_GT(StringRef("fop").compare(StringRef("foo")), 0); |
| EXPECT_LT(StringRef("foo").compare(StringRef("fop")), 0); |
| EXPECT_GT(StringRef("foo").compare(StringRef("fo")), 0); |
| EXPECT_LT(StringRef("fo").compare(StringRef("foo")), 0); |
| CheckOp<std::equal_to>(); |
| CheckOp<std::not_equal_to>(); |
| CheckOp<std::less>(); |
| CheckOp<std::less_equal>(); |
| CheckOp<std::greater>(); |
| CheckOp<std::greater_equal>(); |
| } |
| |
| TEST(UtilTest, CountDigits) { |
| test_count_digits<uint32_t>(); |
| test_count_digits<uint64_t>(); |
| } |
| |
| #ifdef _WIN32 |
| TEST(UtilTest, UTF16ToUTF8) { |
| std::string s = "ёжик"; |
| fmt::internal::UTF16ToUTF8 u(L"\x0451\x0436\x0438\x043A"); |
| EXPECT_EQ(s, u.str()); |
| EXPECT_EQ(s.size(), u.size()); |
| } |
| |
| TEST(UtilTest, UTF8ToUTF16) { |
| std::string s = "лошадка"; |
| fmt::internal::UTF8ToUTF16 u(s.c_str()); |
| EXPECT_EQ(L"\x043B\x043E\x0448\x0430\x0434\x043A\x0430", u.str()); |
| EXPECT_EQ(7, u.size()); |
| } |
| |
| template <typename Converter, typename Char> |
| void check_utf_conversion_error( |
| const char *message, |
| fmt::BasicStringRef<Char> str = fmt::BasicStringRef<Char>(0, 0)) { |
| fmt::MemoryWriter out; |
| fmt::internal::format_windows_error(out, ERROR_INVALID_PARAMETER, message); |
| fmt::SystemError error(0, ""); |
| try { |
| (Converter)(str); |
| } catch (const fmt::SystemError &e) { |
| error = e; |
| } |
| EXPECT_EQ(ERROR_INVALID_PARAMETER, error.error_code()); |
| EXPECT_EQ(out.str(), error.what()); |
| } |
| |
| TEST(UtilTest, UTF16ToUTF8Error) { |
| check_utf_conversion_error<fmt::internal::UTF16ToUTF8, wchar_t>( |
| "cannot convert string from UTF-16 to UTF-8"); |
| } |
| |
| TEST(UtilTest, UTF8ToUTF16Error) { |
| const char *message = "cannot convert string from UTF-8 to UTF-16"; |
| check_utf_conversion_error<fmt::internal::UTF8ToUTF16, char>(message); |
| check_utf_conversion_error<fmt::internal::UTF8ToUTF16, char>( |
| message, fmt::StringRef("foo", INT_MAX + 1u)); |
| } |
| |
| TEST(UtilTest, UTF16ToUTF8Convert) { |
| fmt::internal::UTF16ToUTF8 u; |
| EXPECT_EQ(ERROR_INVALID_PARAMETER, u.convert(fmt::WStringRef(0, 0))); |
| EXPECT_EQ(ERROR_INVALID_PARAMETER, |
| u.convert(fmt::WStringRef(L"foo", INT_MAX + 1u))); |
| } |
| #endif // _WIN32 |
| |
| typedef void (*FormatErrorMessage)( |
| fmt::Writer &out, int error_code, StringRef message); |
| |
| template <typename Error> |
| void check_throw_error(int error_code, FormatErrorMessage format) { |
| fmt::SystemError error(0, ""); |
| try { |
| throw Error(error_code, "test {}", "error"); |
| } catch (const fmt::SystemError &e) { |
| error = e; |
| } |
| fmt::MemoryWriter message; |
| format(message, error_code, "test error"); |
| EXPECT_EQ(message.str(), error.what()); |
| EXPECT_EQ(error_code, error.error_code()); |
| } |
| |
| TEST(UtilTest, FormatSystemError) { |
| fmt::MemoryWriter message; |
| fmt::format_system_error(message, EDOM, "test"); |
| EXPECT_EQ(fmt::format("test: {}", get_system_error(EDOM)), message.str()); |
| message.clear(); |
| fmt::format_system_error( |
| message, EDOM, fmt::StringRef(0, std::numeric_limits<size_t>::max())); |
| EXPECT_EQ(fmt::format("error {}", EDOM), message.str()); |
| } |
| |
| TEST(UtilTest, SystemError) { |
| fmt::SystemError e(EDOM, "test"); |
| EXPECT_EQ(fmt::format("test: {}", get_system_error(EDOM)), e.what()); |
| EXPECT_EQ(EDOM, e.error_code()); |
| check_throw_error<fmt::SystemError>(EDOM, fmt::format_system_error); |
| } |
| |
| TEST(UtilTest, ReportSystemError) { |
| fmt::MemoryWriter out; |
| fmt::format_system_error(out, EDOM, "test error"); |
| out << '\n'; |
| EXPECT_WRITE(stderr, fmt::report_system_error(EDOM, "test error"), out.str()); |
| } |
| |
| #ifdef _WIN32 |
| |
| TEST(UtilTest, FormatWindowsError) { |
| LPWSTR message = 0; |
| FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER | |
| FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, 0, |
| ERROR_FILE_EXISTS, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), |
| reinterpret_cast<LPWSTR>(&message), 0, 0); |
| fmt::internal::UTF16ToUTF8 utf8_message(message); |
| LocalFree(message); |
| fmt::MemoryWriter actual_message; |
| fmt::internal::format_windows_error( |
| actual_message, ERROR_FILE_EXISTS, "test"); |
| EXPECT_EQ(fmt::format("test: {}", utf8_message.str()), |
| actual_message.str()); |
| actual_message.clear(); |
| fmt::internal::format_windows_error( |
| actual_message, ERROR_FILE_EXISTS, |
| fmt::StringRef(0, std::numeric_limits<size_t>::max())); |
| EXPECT_EQ(fmt::format("error {}", ERROR_FILE_EXISTS), actual_message.str()); |
| } |
| |
| TEST(UtilTest, FormatLongWindowsError) { |
| LPWSTR message = 0; |
| // this error code is not available on all Windows platforms and |
| // Windows SDKs, so do not fail the test if the error string cannot |
| // be retrieved. |
| const int provisioning_not_allowed = 0x80284013L /*TBS_E_PROVISIONING_NOT_ALLOWED*/; |
| if (FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER | |
| FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, 0, |
| provisioning_not_allowed, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), |
| reinterpret_cast<LPWSTR>(&message), 0, 0) == 0) { |
| return; |
| } |
| fmt::internal::UTF16ToUTF8 utf8_message(message); |
| LocalFree(message); |
| fmt::MemoryWriter actual_message; |
| fmt::internal::format_windows_error( |
| actual_message, provisioning_not_allowed, "test"); |
| EXPECT_EQ(fmt::format("test: {}", utf8_message.str()), |
| actual_message.str()); |
| } |
| |
| TEST(UtilTest, WindowsError) { |
| check_throw_error<fmt::WindowsError>( |
| ERROR_FILE_EXISTS, fmt::internal::format_windows_error); |
| } |
| |
| TEST(UtilTest, ReportWindowsError) { |
| fmt::MemoryWriter out; |
| fmt::internal::format_windows_error(out, ERROR_FILE_EXISTS, "test error"); |
| out << '\n'; |
| EXPECT_WRITE(stderr, |
| fmt::report_windows_error(ERROR_FILE_EXISTS, "test error"), out.str()); |
| } |
| |
| #endif // _WIN32 |
| |
| enum TestEnum2 {}; |
| |
| TEST(UtilTest, ConvertToInt) { |
| EXPECT_TRUE(fmt::internal::ConvertToInt<char>::enable_conversion); |
| EXPECT_FALSE(fmt::internal::ConvertToInt<const char *>::enable_conversion); |
| EXPECT_TRUE(fmt::internal::ConvertToInt<TestEnum2>::value); |
| } |
| |
| #if FMT_USE_ENUM_BASE |
| enum TestEnum : char {TestValue}; |
| TEST(UtilTest, IsEnumConvertibleToInt) { |
| EXPECT_TRUE(fmt::internal::ConvertToInt<TestEnum>::enable_conversion); |
| } |
| #endif |
| |
| template <typename T> |
| bool check_enable_if( |
| typename fmt::internal::EnableIf<sizeof(T) == sizeof(int), T>::type *) { |
| return true; |
| } |
| |
| template <typename T> |
| bool check_enable_if( |
| typename fmt::internal::EnableIf<sizeof(T) != sizeof(int), T>::type *) { |
| return false; |
| } |
| |
| TEST(UtilTest, EnableIf) { |
| int i = 0; |
| EXPECT_TRUE(check_enable_if<int>(&i)); |
| char c = 0; |
| EXPECT_FALSE(check_enable_if<char>(&c)); |
| } |
| |
| TEST(UtilTest, Conditional) { |
| int i = 0; |
| fmt::internal::Conditional<true, int, char>::type *pi = &i; |
| (void)pi; |
| char c = 0; |
| fmt::internal::Conditional<false, int, char>::type *pc = &c; |
| (void)pc; |
| } |
| |
| struct TestLConv { |
| char *thousands_sep; |
| }; |
| |
| struct EmptyLConv {}; |
| |
| TEST(UtilTest, ThousandsSep) { |
| char foo[] = "foo"; |
| TestLConv lc = {foo}; |
| EXPECT_EQ("foo", fmt::internal::thousands_sep(&lc).to_string()); |
| EmptyLConv empty_lc; |
| EXPECT_EQ("", fmt::internal::thousands_sep(&empty_lc)); |
| } |