d039af3309
See the discussion in PR https://github.com/llvm/llvm-project/pull/131650 on why we need to clear the errno at the beginning of some tests, and outlining the various solutions. Introduce ErrnoCheckingTest base class and use it for unlink_test as an example.
41 lines
1.3 KiB
C++
41 lines
1.3 KiB
C++
//===-- ErrnoCheckingTest.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_UNITTEST_ERRNOCHECKINGTEST_H
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#define LLVM_LIBC_TEST_UNITTEST_ERRNOCHECKINGTEST_H
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#include "src/__support/macros/config.h"
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#include "src/errno/libc_errno.h"
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#include "test/UnitTest/Test.h"
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namespace LIBC_NAMESPACE_DECL {
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namespace testing {
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// Provides a test fixture for tests that validate modifications of the errno.
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// It clears out the errno at the beginning of the test (e.g. in case it
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// contained the value pre-set by the system), and confirms it's still zero
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// at the end of the test, forcing the test author to explicitly account for all
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// non-zero values.
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class ErrnoCheckingTest : public Test {
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public:
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void SetUp() override {
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Test::SetUp();
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LIBC_NAMESPACE::libc_errno = 0;
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}
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void TearDown() override {
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ASSERT_ERRNO_SUCCESS();
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Test::TearDown();
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}
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};
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} // namespace testing
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} // namespace LIBC_NAMESPACE_DECL
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#endif // LLVM_LIBC_TEST_UNITTEST_ERRNOCHECKINGTEST_H
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