| 1 | //===-- Unittests for fchdir ----------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "src/fcntl/open.h" |
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| 10 | #include "src/unistd/close.h" |
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| 11 | #include "src/unistd/fchdir.h" |
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| 12 | #include "test/UnitTest/ErrnoCheckingTest.h" |
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| 13 | #include "test/UnitTest/ErrnoSetterMatcher.h" |
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| 14 | #include "test/UnitTest/Test.h" |
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| 15 | |
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| 16 | #include "hdr/fcntl_macros.h" |
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| 17 | |
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| 18 | using LlvmLibcChdirTest = LIBC_NAMESPACE::testing::ErrnoCheckingTest; |
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| 19 | |
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| 20 | TEST_F(LlvmLibcChdirTest, ChangeAndOpen) { |
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| 21 | // The idea of this test is that we will first open an existing test file |
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| 22 | // without changing the directory to make sure it exists. Next, we change |
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| 23 | // directory and open the same file to make sure that the "fchdir" operation |
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| 24 | // succeeded. |
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| 25 | using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Succeeds; |
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| 26 | constexpr const char *FILENAME = "testdata" ; |
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| 27 | auto TEST_DIR = libc_make_test_file_path(FILENAME); |
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| 28 | constexpr const char *FILENAME2 = "testdata/fchdir.test" ; |
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| 29 | auto TEST_FILE = libc_make_test_file_path(FILENAME2); |
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| 30 | constexpr const char *FILENAME3 = "fchdir.test" ; |
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| 31 | auto TEST_FILE_BASE = libc_make_test_file_path(FILENAME3); |
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| 32 | |
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| 33 | int dir_fd = LIBC_NAMESPACE::open(TEST_DIR, O_DIRECTORY); |
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| 34 | ASSERT_GT(dir_fd, 0); |
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| 35 | ASSERT_ERRNO_SUCCESS(); |
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| 36 | int file_fd = LIBC_NAMESPACE::open(TEST_FILE, O_PATH); |
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| 37 | ASSERT_GT(file_fd, 0); |
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| 38 | ASSERT_ERRNO_SUCCESS(); |
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| 39 | ASSERT_THAT(LIBC_NAMESPACE::close(file_fd), Succeeds(0)); |
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| 40 | |
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| 41 | ASSERT_THAT(LIBC_NAMESPACE::fchdir(dir_fd), Succeeds(0)); |
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| 42 | file_fd = LIBC_NAMESPACE::open(TEST_FILE_BASE, O_PATH); |
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| 43 | ASSERT_GT(file_fd, 0); |
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| 44 | ASSERT_ERRNO_SUCCESS(); |
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| 45 | ASSERT_THAT(LIBC_NAMESPACE::close(file_fd), Succeeds(0)); |
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| 46 | ASSERT_THAT(LIBC_NAMESPACE::close(dir_fd), Succeeds(0)); |
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| 47 | } |
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| 48 | |
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| 49 | TEST_F(LlvmLibcChdirTest, ChangeToNonExistentDir) { |
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| 50 | ASSERT_EQ(LIBC_NAMESPACE::fchdir(0), -1); |
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| 51 | ASSERT_ERRNO_FAILURE(); |
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| 52 | } |
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| 53 | |
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