| 1 | //===-- Unittests for getcwd ----------------------------------------------===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #include "src/__support/CPP/string_view.h" |
| 10 | #include "src/errno/libc_errno.h" |
| 11 | #include "src/stdlib/getenv.h" |
| 12 | #include "src/unistd/getcwd.h" |
| 13 | |
| 14 | #include "test/IntegrationTest/test.h" |
| 15 | |
| 16 | #include <stdlib.h> // For malloc and free |
| 17 | |
| 18 | using LIBC_NAMESPACE::cpp::string_view; |
| 19 | |
| 20 | TEST_MAIN(int argc, char **argv, char **envp) { |
| 21 | char buffer[1024]; |
| 22 | ASSERT_TRUE(string_view(LIBC_NAMESPACE::getenv("PWD")) == |
| 23 | LIBC_NAMESPACE::getcwd(buffer, 1024)); |
| 24 | |
| 25 | // nullptr buffer |
| 26 | char *cwd = LIBC_NAMESPACE::getcwd(buf: nullptr, size: 0); |
| 27 | ASSERT_TRUE(string_view(LIBC_NAMESPACE::getenv("PWD")) == cwd); |
| 28 | free(ptr: cwd); |
| 29 | |
| 30 | // Bad size |
| 31 | cwd = LIBC_NAMESPACE::getcwd(buf: buffer, size: 0); |
| 32 | ASSERT_TRUE(cwd == nullptr); |
| 33 | ASSERT_ERRNO_EQ(EINVAL); |
| 34 | LIBC_NAMESPACE::libc_errno = 0; |
| 35 | |
| 36 | // Insufficient size |
| 37 | cwd = LIBC_NAMESPACE::getcwd(buf: buffer, size: 2); |
| 38 | ASSERT_TRUE(cwd == nullptr); |
| 39 | int err = LIBC_NAMESPACE::libc_errno; |
| 40 | ASSERT_EQ(err, ERANGE); |
| 41 | |
| 42 | return 0; |
| 43 | } |
| 44 |