| //===-- Unittests for symlink ---------------------------------------------===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "src/errno/libc_errno.h" |
| #include "src/fcntl/open.h" |
| #include "src/unistd/close.h" |
| #include "src/unistd/symlink.h" |
| #include "src/unistd/unlink.h" |
| #include "test/UnitTest/ErrnoSetterMatcher.h" |
| #include "test/UnitTest/Test.h" |
| |
| TEST(LlvmLibcSymlinkTest, CreateAndUnlink) { |
| using __llvm_libc::testing::ErrnoSetterMatcher::Succeeds; |
| constexpr const char *TEST_FILE_BASE = "symlink.test"; |
| constexpr const char *TEST_FILE = "testdata/symlink.test"; |
| constexpr const char *TEST_FILE_LINK = "testdata/symlink.test.symlink"; |
| |
| // The test strategy is as follows: |
| // 1. Create a normal file |
| // 2. Create a symlink to that file. |
| // 3. Open the symlink to check that the symlink was created. |
| // 4. Cleanup the file and its symlink. |
| libc_errno = 0; |
| int write_fd = __llvm_libc::open(TEST_FILE, O_WRONLY | O_CREAT, S_IRWXU); |
| ASSERT_EQ(libc_errno, 0); |
| ASSERT_GT(write_fd, 0); |
| ASSERT_THAT(__llvm_libc::close(write_fd), Succeeds(0)); |
| |
| ASSERT_THAT(__llvm_libc::symlink(TEST_FILE_BASE, TEST_FILE_LINK), |
| Succeeds(0)); |
| |
| int symlink_fd = __llvm_libc::open(TEST_FILE_LINK, O_PATH); |
| ASSERT_GT(symlink_fd, 0); |
| ASSERT_EQ(libc_errno, 0); |
| ASSERT_THAT(__llvm_libc::close(symlink_fd), Succeeds(0)); |
| |
| ASSERT_THAT(__llvm_libc::unlink(TEST_FILE), Succeeds(0)); |
| ASSERT_THAT(__llvm_libc::unlink(TEST_FILE_LINK), Succeeds(0)); |
| } |
| |
| TEST(LlvmLibcSymlinkTest, SymlinkInNonExistentPath) { |
| using __llvm_libc::testing::ErrnoSetterMatcher::Fails; |
| ASSERT_THAT(__llvm_libc::symlink("non-existent-dir/non-existent-file", |
| "non-existent-dir/bad-symlink"), |
| Fails(ENOENT)); |
| } |