| 1 | //===-- Unittests for difftime --------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "src/__support/FPUtil/FPBits.h" |
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| 10 | #include "src/time/difftime.h" |
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| 11 | #include "src/time/time_constants.h" |
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| 12 | #include "test/UnitTest/ErrnoSetterMatcher.h" |
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| 13 | #include "test/UnitTest/Test.h" |
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| 14 | |
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| 15 | TEST(LlvmLibcDifftime, SmokeTest) { |
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| 16 | time_t t1_seconds = LIBC_NAMESPACE::time_constants::SECONDS_PER_HOUR; |
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| 17 | time_t t2_seconds = 0; |
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| 18 | |
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| 19 | LIBC_NAMESPACE::fputil::FPBits<long double> expected_fp = |
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| 20 | LIBC_NAMESPACE::fputil::FPBits<long double>(); |
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| 21 | expected_fp = LIBC_NAMESPACE::fputil::FPBits<long double>( |
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| 22 | static_cast<long double>(t1_seconds)); |
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| 23 | |
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| 24 | double result = LIBC_NAMESPACE::difftime(t1_seconds, t2_seconds); |
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| 25 | |
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| 26 | LIBC_NAMESPACE::fputil::FPBits<long double> actual_fp = |
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| 27 | LIBC_NAMESPACE::fputil::FPBits<long double>(); |
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| 28 | actual_fp = LIBC_NAMESPACE::fputil::FPBits<long double>( |
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| 29 | static_cast<long double>(result)); |
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| 30 | |
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| 31 | EXPECT_EQ(actual_fp.uintval(), expected_fp.uintval()); |
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| 32 | EXPECT_EQ(actual_fp.is_neg(), expected_fp.is_neg()); |
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| 33 | EXPECT_EQ(actual_fp.get_exponent(), expected_fp.get_exponent()); |
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| 34 | EXPECT_EQ(actual_fp.get_mantissa(), expected_fp.get_mantissa()); |
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| 35 | } |
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| 36 | |
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