2f7ad891a7
Use ErrnoCheckingTest harness added in
d039af3309 for all unistd tests that
verify errno values. Stop explicitly setting it to zero in test code, as
harness does it.
It also verifies that the errno is zero at the end of each test case, so
update the ASSERT_ERRNO_EQ and ASSERT_ERRNO_FAILURE macro to clear out
its value after the verification (similar to how ErrnoSetterMatcher
does).
Update the CMake and Bazel rules for those tests. In the latter case,
remove commented out tests that are currently unsupported in Bazel,
since they get stale quickly.
57 lines
2.7 KiB
C++
57 lines
2.7 KiB
C++
//===-- Header selector for libc unittests ----------------------*- 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_TEST_H
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#define LLVM_LIBC_TEST_UNITTEST_TEST_H
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// This macro takes a file name and returns a value implicitly castable to
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// a const char*. That const char* is the path to a file with the provided name
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// in a directory where the test is allowed to write. By default it writes
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// directly to the filename provided, but implementations are allowed to
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// redefine it as necessary.
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#define libc_make_test_file_path(file_name) (file_name)
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// The LIBC_COPT_TEST_USE_* macros can select either of two alternate test
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// frameworks:
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// * gtest, the well-known model for them all
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// * zxtest, the gtest workalike subset sometimes used in the Fuchsia build
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// The default is to use llvm-libc's own gtest workalike framework.
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//
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// All the frameworks provide the basic EXPECT_* and ASSERT_* macros that gtest
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// does. The wrapper headers below define LIBC_NAMESPACE::testing::Test as the
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// base class for test fixture classes. Each also provides a definition of the
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// macro LIBC_TEST_HAS_MATCHERS() for use in `#if` conditionals to guard use of
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// gmock-style matchers, which zxtest does not support.
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#if defined(LIBC_COPT_TEST_USE_ZXTEST)
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#include "ZxTest.h"
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// TODO: Migrate Pigweed to setting LIBC_COPT_TEST_USE_GTEST instead.
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#elif defined(LIBC_COPT_TEST_USE_GTEST) || defined(LIBC_COPT_TEST_USE_PIGWEED)
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#include "GTest.h"
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#else
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#include "LibcTest.h"
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#endif
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// These are defined the same way for each framework, in terms of the macros
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// they all provide.
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#define ASSERT_ERRNO_EQ(VAL) \
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do { \
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ASSERT_EQ(VAL, static_cast<int>(LIBC_NAMESPACE::libc_errno)); \
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LIBC_NAMESPACE::libc_errno = 0; \
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} while (0)
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#define ASSERT_ERRNO_SUCCESS() \
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ASSERT_EQ(0, static_cast<int>(LIBC_NAMESPACE::libc_errno))
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#define ASSERT_ERRNO_FAILURE() \
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do { \
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ASSERT_NE(0, static_cast<int>(LIBC_NAMESPACE::libc_errno)); \
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LIBC_NAMESPACE::libc_errno = 0; \
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} while (0)
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#endif // LLVM_LIBC_TEST_UNITTEST_TEST_H
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