//===-- Unittests for acospif16 -------------------------------------------===//
//
// 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/acospif16.h"
#include "test/UnitTest/FPMatcher.h"
#include "test/UnitTest/Test.h"

using LlvmLibcAcospif16Test = LIBC_NAMESPACE::testing::FPTest<float16>;
TEST_F(LlvmLibcAcospif16Test, SpecialNumbers) {
  EXPECT_FP_IS_NAN(LIBC_NAMESPACE::acospif16(aNaN));
  EXPECT_MATH_ERRNO(0);

  EXPECT_FP_IS_NAN_WITH_EXCEPTION(LIBC_NAMESPACE::acospif16(sNaN), FE_INVALID);
  EXPECT_MATH_ERRNO(0);

  EXPECT_FP_EQ(zero, LIBC_NAMESPACE::acospif16(1.0f));
  EXPECT_MATH_ERRNO(0);

  EXPECT_FP_IS_NAN(LIBC_NAMESPACE::acospif16(inf));
  EXPECT_MATH_ERRNO(EDOM);

  EXPECT_FP_IS_NAN(LIBC_NAMESPACE::acospif16(neg_inf));
  EXPECT_MATH_ERRNO(EDOM);

  EXPECT_FP_IS_NAN(LIBC_NAMESPACE::acospif16(2.0f));
  EXPECT_MATH_ERRNO(EDOM);

  EXPECT_FP_IS_NAN(LIBC_NAMESPACE::acospif16(-2.0f));
  EXPECT_MATH_ERRNO(EDOM);
}