libc/test/include/SignbitTest.h

   1 //===-- Utility class to test the signbit macro [f|l] -----------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef LLVM_LIBC_TEST_INCLUDE_MATH_SIGNBIT_H
  10 #define LLVM_LIBC_TEST_INCLUDE_MATH_SIGNBIT_H
  11
  12 #include "test/UnitTest/FPMatcher.h"
  13 #include "test/UnitTest/Test.h"
  14
  15 #include "include/llvm-libc-macros/math-function-macros.h"
  16
  17 template <typename T> class SignbitTest : public LIBC_NAMESPACE::testing::Test {
  18
  19   DECLARE_SPECIAL_CONSTANTS(T)
  20
  21 public:
  22   typedef int (*SignbitFunc)(T);
  23
  24   void testSpecialNumbers(SignbitFunc func) {
  25     EXPECT_EQ(func(1), 0);
  26     EXPECT_NE(func(-1), 0);
  27   }
  28 };
  29
  30 #define LIST_SIGNBIT_TESTS(T, func)                                            \
  31   using LlvmLibcSignbitTest = SignbitTest<T>;                                  \
  32   TEST_F(LlvmLibcSignbitTest, SpecialNumbers) {                                \
  33     auto signbit_func = [](T x) { return func(x); };                           \
  34     testSpecialNumbers(signbit_func);                                          \
  35   }
  36
  37 #endif // LLVM_LIBC_TEST_INCLUDE_MATH_SIGNBIT_H