libc/test/src/math/smoke/tanpif_test.cpp

//===-- Unittests for tanpif ----------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//

#include "hdr/errno_macros.h"
#include "src/math/tanpif.h"
#include "test/UnitTest/FPMatcher.h"
#include "test/UnitTest/Test.h"

using LlvmLibcTanpifTest = LIBC_NAMESPACE::testing::FPTest<float>;

TEST_F(LlvmLibcTanpifTest, SpecialNumbers) {
  EXPECT_FP_EQ_WITH_EXCEPTION(aNaN, LIBC_NAMESPACE::tanpif(sNaN), FE_INVALID);
  EXPECT_MATH_ERRNO(0);

  EXPECT_FP_EQ(aNaN, LIBC_NAMESPACE::tanpif(aNaN));
  EXPECT_MATH_ERRNO(0);

  EXPECT_FP_EQ(zero, LIBC_NAMESPACE::tanpif(zero));
  EXPECT_MATH_ERRNO(0);

  EXPECT_FP_EQ(neg_zero, LIBC_NAMESPACE::tanpif(neg_zero));
  EXPECT_MATH_ERRNO(0);

  EXPECT_FP_EQ(aNaN, LIBC_NAMESPACE::tanpif(inf));
  EXPECT_MATH_ERRNO(EDOM);

  EXPECT_FP_EQ(aNaN, LIBC_NAMESPACE::tanpif(neg_inf));
  EXPECT_MATH_ERRNO(EDOM);
}