| //===-- TestMatchers.h ------------------------------------------*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_LIBC_UTILS_UNITTEST_FPMATCHER_H |
| #define LLVM_LIBC_UTILS_UNITTEST_FPMATCHER_H |
| |
| #include "src/__support/FPUtil/FEnvImpl.h" |
| #include "src/__support/FPUtil/FPBits.h" |
| #include "utils/UnitTest/Test.h" |
| |
| #include <errno.h> |
| #include <math.h> |
| |
| namespace __llvm_libc { |
| namespace fputil { |
| namespace testing { |
| |
| template <typename ValType, typename StreamType> |
| cpp::enable_if_t<cpp::is_floating_point_v<ValType>, void> |
| describeValue(const char *label, ValType value, StreamType &stream); |
| |
| template <typename T, __llvm_libc::testing::TestCondition Condition> |
| class FPMatcher : public __llvm_libc::testing::Matcher<T> { |
| static_assert(__llvm_libc::cpp::is_floating_point_v<T>, |
| "FPMatcher can only be used with floating point values."); |
| static_assert(Condition == __llvm_libc::testing::Cond_EQ || |
| Condition == __llvm_libc::testing::Cond_NE, |
| "Unsupported FPMathcer test condition."); |
| |
| T expected; |
| T actual; |
| |
| public: |
| FPMatcher(T expectedValue) : expected(expectedValue) {} |
| |
| bool match(T actualValue) { |
| actual = actualValue; |
| fputil::FPBits<T> actualBits(actual), expectedBits(expected); |
| if (Condition == __llvm_libc::testing::Cond_EQ) |
| return (actualBits.is_nan() && expectedBits.is_nan()) || |
| (actualBits.uintval() == expectedBits.uintval()); |
| |
| // If condition == Cond_NE. |
| if (actualBits.is_nan()) |
| return !expectedBits.is_nan(); |
| return expectedBits.is_nan() || |
| (actualBits.uintval() != expectedBits.uintval()); |
| } |
| |
| void explainError(testutils::StreamWrapper &stream) override { |
| describeValue("Expected floating point value: ", expected, stream); |
| describeValue(" Actual floating point value: ", actual, stream); |
| } |
| }; |
| |
| template <__llvm_libc::testing::TestCondition C, typename T> |
| FPMatcher<T, C> getMatcher(T expectedValue) { |
| return FPMatcher<T, C>(expectedValue); |
| } |
| |
| } // namespace testing |
| } // namespace fputil |
| } // namespace __llvm_libc |
| |
| #define DECLARE_SPECIAL_CONSTANTS(T) \ |
| using FPBits = __llvm_libc::fputil::FPBits<T>; \ |
| using UIntType = typename FPBits::UIntType; \ |
| const T zero = T(FPBits::zero()); \ |
| const T neg_zero = T(FPBits::neg_zero()); \ |
| const T aNaN = T(FPBits::build_nan(1)); \ |
| const T inf = T(FPBits::inf()); \ |
| const T neg_inf = T(FPBits::neg_inf()); |
| |
| #define EXPECT_FP_EQ(expected, actual) \ |
| EXPECT_THAT( \ |
| actual, \ |
| __llvm_libc::fputil::testing::getMatcher<__llvm_libc::testing::Cond_EQ>( \ |
| expected)) |
| |
| #define ASSERT_FP_EQ(expected, actual) \ |
| ASSERT_THAT( \ |
| actual, \ |
| __llvm_libc::fputil::testing::getMatcher<__llvm_libc::testing::Cond_EQ>( \ |
| expected)) |
| |
| #define EXPECT_FP_NE(expected, actual) \ |
| EXPECT_THAT( \ |
| actual, \ |
| __llvm_libc::fputil::testing::getMatcher<__llvm_libc::testing::Cond_NE>( \ |
| expected)) |
| |
| #define ASSERT_FP_NE(expected, actual) \ |
| ASSERT_THAT( \ |
| actual, \ |
| __llvm_libc::fputil::testing::getMatcher<__llvm_libc::testing::Cond_NE>( \ |
| expected)) |
| |
| #define EXPECT_MATH_ERRNO(expected) \ |
| do { \ |
| if (math_errhandling & MATH_ERRNO) { \ |
| int actual = errno; \ |
| errno = 0; \ |
| EXPECT_EQ(actual, expected); \ |
| } \ |
| } while (0) |
| |
| #define ASSERT_MATH_ERRNO(expected) \ |
| do { \ |
| if (math_errhandling & MATH_ERRNO) { \ |
| int actual = errno; \ |
| errno = 0; \ |
| ASSERT_EQ(actual, expected); \ |
| } \ |
| } while (0) |
| |
| #define EXPECT_FP_EXCEPTION(expected) \ |
| do { \ |
| if (math_errhandling & MATH_ERREXCEPT) { \ |
| EXPECT_EQ(__llvm_libc::fputil::test_except(FE_ALL_EXCEPT), expected); \ |
| } \ |
| } while (0) |
| |
| #define ASSERT_FP_EXCEPTION(expected) \ |
| do { \ |
| if (math_errhandling & MATH_ERREXCEPT) { \ |
| ASSERT_EQ(__llvm_libc::fputil::test_except(FE_ALL_EXCEPT), expected); \ |
| } \ |
| } while (0) |
| |
| #endif // LLVM_LIBC_UTILS_UNITTEST_FPMATCHER_H |