d2be9826dd
This replaces the old macros LIBC_COPT_TEST_USE_FUCHSIA and LIBC_COPT_TEST_USE_PIGWEED with LIBC_COPT_TEST_ZXTEST and LIBC_COPT_TEST_GTEST, respectively. These are really not about whether the code is in the Fuchsia build or in the Pigweed build, but just about what test framework is being used. The gtest framework can be used in many contexts, and the zxtest framework is not always what's used in the Fuchsia build. The test/UnitTest/Test.h wrapper header now provides the macro LIBC_TEST_HAS_MATCHERS() for use in `#if` conditionals on use of gmock-style matchers, replacing `#if` conditionals that test the framework selection macros directly.
58 lines
1.5 KiB
C++
58 lines
1.5 KiB
C++
//===-- FPExceptMatchers.cpp ----------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "FPExceptMatcher.h"
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#include "test/UnitTest/Test.h"
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#include "hdr/types/fenv_t.h"
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#include "src/__support/FPUtil/FEnvImpl.h"
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#include <memory>
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#include <setjmp.h>
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#include <signal.h>
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#if LIBC_TEST_HAS_MATCHERS()
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namespace LIBC_NAMESPACE {
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namespace testing {
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#if defined(_WIN32)
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#define sigjmp_buf jmp_buf
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#define sigsetjmp(buf, save) setjmp(buf)
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#define siglongjmp(buf, val) longjmp(buf, val)
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#endif
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static thread_local sigjmp_buf jumpBuffer;
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static thread_local bool caughtExcept;
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static void sigfpeHandler(int sig) {
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caughtExcept = true;
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siglongjmp(jumpBuffer, -1);
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}
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FPExceptMatcher::FPExceptMatcher(FunctionCaller *func) {
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auto oldSIGFPEHandler = signal(SIGFPE, &sigfpeHandler);
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std::unique_ptr<FunctionCaller> funcUP(func);
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caughtExcept = false;
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fenv_t oldEnv;
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fputil::get_env(&oldEnv);
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if (sigsetjmp(jumpBuffer, 1) == 0)
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funcUP->call();
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// We restore the previous floating point environment after
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// the call to the function which can potentially raise SIGFPE.
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fputil::set_env(&oldEnv);
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signal(SIGFPE, oldSIGFPEHandler);
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exceptionRaised = caughtExcept;
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}
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} // namespace testing
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} // namespace LIBC_NAMESPACE
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#endif // LIBC_TEST_HAS_MATCHERS()
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