74 lines
2.1 KiB
C++
74 lines
2.1 KiB
C++
//===-- ErrnoSetterMatcher.h ------------------------------------*- C++ -*-===//
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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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#ifndef LLVM_LIBC_TEST_ERRNOSETTERMATCHER_H
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#define LLVM_LIBC_TEST_ERRNOSETTERMATCHER_H
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#include "utils/UnitTest/Test.h"
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#include <errno.h>
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namespace __llvm_libc {
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namespace testing {
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namespace internal {
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extern "C" char *strerror(int);
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template <typename T> class ErrnoSetterMatcher : public Matcher<T> {
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T ExpectedReturn;
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T ActualReturn;
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int ExpectedErrno;
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int ActualErrno;
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public:
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ErrnoSetterMatcher(T ExpectedReturn, int ExpectedErrno)
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: ExpectedReturn(ExpectedReturn), ExpectedErrno(ExpectedErrno) {}
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void explainError(testutils::StreamWrapper &OS) override {
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if (ActualReturn != ExpectedReturn)
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OS << "Expected return to be " << ExpectedReturn << " but got "
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<< ActualReturn << ".\nExpecte errno to be " << strerror(ExpectedErrno)
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<< " but got " << strerror(ActualErrno) << ".\n";
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else
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OS << "Correct value " << ExpectedReturn
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<< " was returned\nBut errno was unexpectely set to "
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<< strerror(ActualErrno) << ".\n";
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}
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bool match(T Got) {
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ActualReturn = Got;
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ActualErrno = errno;
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errno = 0;
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return Got == ExpectedReturn && ActualErrno == ExpectedErrno;
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}
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};
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} // namespace internal
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namespace ErrnoSetterMatcher {
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template <typename RetT = int>
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static internal::ErrnoSetterMatcher<RetT> Succeeds(RetT ExpectedReturn = 0,
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int ExpectedErrno = 0) {
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return {ExpectedReturn, ExpectedErrno};
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}
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template <typename RetT = int>
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static internal::ErrnoSetterMatcher<RetT> Fails(int ExpectedErrno,
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RetT ExpectedReturn = -1) {
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return {ExpectedReturn, ExpectedErrno};
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}
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} // namespace ErrnoSetterMatcher
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} // namespace testing
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} // namespace __llvm_libc
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#endif // LLVM_LIBC_TEST_ERRNOSETTERMATCHER_H
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