libc/test/include/IsFiniteTest.h

   1 //===-- Utility class to test the isfinite 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_ISFINITE_H
  10 #define LLVM_LIBC_TEST_INCLUDE_MATH_ISFINITE_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>
  18 class IsFiniteTest : public LIBC_NAMESPACE::testing::Test {
  19   DECLARE_SPECIAL_CONSTANTS(T)
  20
  21 public:
  22   typedef int (*IsFiniteFunc)(T);
  23
  24   void testSpecialNumbers(IsFiniteFunc func) {
  25     EXPECT_EQ(func(inf), 0);
  26     EXPECT_EQ(func(neg_inf), 0);
  27     EXPECT_EQ(func(zero), 1);
  28     EXPECT_EQ(func(neg_zero), 1);
  29   }
  30 };
  31
  32 #define LIST_ISFINITE_TESTS(T, func)                                           \
  33   using LlvmLibcIsFiniteTest = IsFiniteTest<T>;                                \
  34   TEST_F(LlvmLibcIsFiniteTest, SpecialNumbers) {                               \
  35     auto isfinite_func = [](T x) { return func(x); };                          \
  36     testSpecialNumbers(isfinite_func);                                         \
  37   }
  38
  39 #endif // LLVM_LIBC_TEST_INCLUDE_MATH_ISFINITE_H