libc/test/include/IsNormalTest.h

   1 //===-- Utility class to test the isnormal macro  ---------------*- 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_ISNORMAL_H
  10 #define LLVM_LIBC_TEST_INCLUDE_MATH_ISNORMAL_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 IsNormalTest : public LIBC_NAMESPACE::testing::Test {
  19   DECLARE_SPECIAL_CONSTANTS(T)
  20
  21 public:
  22   typedef int (*IsNormalFunc)(T);
  23
  24   void testSpecialNumbers(IsNormalFunc func) {
  25     EXPECT_EQ(func(aNaN), 0);
  26     EXPECT_EQ(func(neg_aNaN), 0);
  27     EXPECT_EQ(func(sNaN), 0);
  28     EXPECT_EQ(func(neg_sNaN), 0);
  29     EXPECT_EQ(func(inf), 0);
  30     EXPECT_EQ(func(neg_inf), 0);
  31     EXPECT_EQ(func(min_normal), 1);
  32     EXPECT_EQ(func(max_normal), 1);
  33     EXPECT_EQ(func(neg_max_normal), 1);
  34     EXPECT_EQ(func(min_denormal), 0);
  35     EXPECT_EQ(func(neg_min_denormal), 0);
  36     EXPECT_EQ(func(max_denormal), 0);
  37     EXPECT_EQ(func(zero), 0);
  38     EXPECT_EQ(func(neg_zero), 0);
  39   }
  40 };
  41
  42 #define LIST_ISNORMAL_TESTS(T, func)                                           \
  43   using LlvmLibcIsNormalTest = IsNormalTest<T>;                                \
  44   TEST_F(LlvmLibcIsNormalTest, SpecialNumbers) {                               \
  45     auto isnormal_func = [](T x) { return func(x); };                          \
  46     testSpecialNumbers(isnormal_func);                                         \
  47   }
  48
  49 #endif // LLVM_LIBC_TEST_INCLUDE_MATH_ISNORMAL_H