| //===-- Unittests for functions from POSIX dirent.h -----------------------===// |
| // |
| // 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/__support/CPP/string_view.h" |
| #include "src/dirent/closedir.h" |
| #include "src/dirent/dirfd.h" |
| #include "src/dirent/opendir.h" |
| #include "src/dirent/readdir.h" |
| #include "src/errno/libc_errno.h" |
| |
| #include "test/UnitTest/Test.h" |
| |
| #include <dirent.h> |
| |
| using string_view = LIBC_NAMESPACE::cpp::string_view; |
| |
| TEST(LlvmLibcDirentTest, SimpleOpenAndRead) { |
| ::DIR *dir = LIBC_NAMESPACE::opendir("testdata"); |
| ASSERT_TRUE(dir != nullptr); |
| // The file descriptors 0, 1 and 2 are reserved for standard streams. |
| // So, the file descriptor for the newly opened directory should be |
| // greater than 2. |
| ASSERT_GT(LIBC_NAMESPACE::dirfd(dir), 2); |
| |
| struct ::dirent *file1 = nullptr, *file2 = nullptr, *dir1 = nullptr, |
| *dir2 = nullptr; |
| while (true) { |
| struct ::dirent *d = LIBC_NAMESPACE::readdir(dir); |
| if (d == nullptr) |
| break; |
| if (string_view(&d->d_name[0]) == "file1.txt") |
| file1 = d; |
| if (string_view(&d->d_name[0]) == "file2.txt") |
| file2 = d; |
| if (string_view(&d->d_name[0]) == "dir1") |
| dir1 = d; |
| if (string_view(&d->d_name[0]) == "dir2") |
| dir2 = d; |
| } |
| |
| // Verify that we don't break out of the above loop in error. |
| ASSERT_ERRNO_SUCCESS(); |
| |
| ASSERT_TRUE(file1 != nullptr); |
| ASSERT_TRUE(file2 != nullptr); |
| ASSERT_TRUE(dir1 != nullptr); |
| ASSERT_TRUE(dir2 != nullptr); |
| |
| ASSERT_EQ(LIBC_NAMESPACE::closedir(dir), 0); |
| } |
| |
| TEST(LlvmLibcDirentTest, OpenNonExistentDir) { |
| LIBC_NAMESPACE::libc_errno = 0; |
| ::DIR *dir = LIBC_NAMESPACE::opendir("___xyz123__.non_existent__"); |
| ASSERT_TRUE(dir == nullptr); |
| ASSERT_ERRNO_EQ(ENOENT); |
| LIBC_NAMESPACE::libc_errno = 0; |
| } |
| |
| TEST(LlvmLibcDirentTest, OpenFile) { |
| LIBC_NAMESPACE::libc_errno = 0; |
| ::DIR *dir = LIBC_NAMESPACE::opendir("testdata/file1.txt"); |
| ASSERT_TRUE(dir == nullptr); |
| ASSERT_ERRNO_EQ(ENOTDIR); |
| LIBC_NAMESPACE::libc_errno = 0; |
| } |