| //===-- 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/FPBits.h" |
| |
| #include "utils/UnitTest/Test.h" |
| |
| namespace __llvm_libc { |
| namespace fputil { |
| namespace testing { |
| |
| template <typename ValType> |
| cpp::EnableIfType<cpp::IsFloatingPointType<ValType>::Value, void> |
| describeValue(const char *label, ValType value, |
| testutils::StreamWrapper &stream); |
| |
| template <typename T, __llvm_libc::testing::TestCondition Condition> |
| class FPMatcher : public __llvm_libc::testing::Matcher<T> { |
| static_assert(__llvm_libc::cpp::IsFloatingPointType<T>::Value, |
| "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.isNaN() && expectedBits.isNaN()) || |
| (actualBits.uintval() == expectedBits.uintval()); |
| |
| // If condition == Cond_NE. |
| if (actualBits.isNaN()) |
| return !expectedBits.isNaN(); |
| return expectedBits.isNaN() || |
| (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 negZero = T(FPBits::negZero()); \ |
| const T aNaN = T(FPBits::buildNaN(1)); \ |
| const T inf = T(FPBits::inf()); \ |
| const T negInf = T(FPBits::negInf()); |
| |
| #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)) |
| |
| #endif // LLVM_LIBC_UTILS_UNITTEST_FPMATCHER_H |