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//===-- FPExceptMatcher.h ---------------------------------------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIBC_TEST_UNITTEST_FPEXCEPTMATCHER_H
#define LLVM_LIBC_TEST_UNITTEST_FPEXCEPTMATCHER_H
#include "src/__support/macros/config.h"
#include "test/UnitTest/Test.h"
#include "test/UnitTest/TestLogger.h"
#if LIBC_TEST_HAS_MATCHERS()
namespace LIBC_NAMESPACE_DECL {
namespace testing {
// TODO: Make the matcher match specific exceptions instead of just identifying
// that an exception was raised.
class FPExceptMatcher : public Matcher<bool> {
bool exceptionRaised;
public:
class FunctionCaller {
public:
virtual ~FunctionCaller() {}
virtual void call() = 0;
};
template <typename Func> static FunctionCaller *getFunctionCaller(Func func) {
struct Callable : public FunctionCaller {
Func f;
explicit Callable(Func theFunc) : f(theFunc) {}
void call() override { f(); }
};
return new Callable(func);
}
// Takes ownership of func.
explicit FPExceptMatcher(FunctionCaller *func);
bool match(bool unused) { return exceptionRaised; }
void explainError() override {
tlog << "A floating point exception should have been raised but it "
<< "wasn't\n";
}
};
} // namespace testing
} // namespace LIBC_NAMESPACE_DECL
#define ASSERT_RAISES_FP_EXCEPT(func) \
ASSERT_THAT( \
true, \
LIBC_NAMESPACE::testing::FPExceptMatcher( \
LIBC_NAMESPACE::testing::FPExceptMatcher::getFunctionCaller(func)))
#else // !LIBC_TEST_HAS_MATCHERS()
#define ASSERT_RAISES_FP_EXCEPT(func) ASSERT_DEATH(func, WITH_SIGNAL(SIGFPE))
#endif // LIBC_TEST_HAS_MATCHERS()
#endif // LLVM_LIBC_TEST_UNITTEST_FPEXCEPTMATCHER_H
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