44 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8 9#include "src/__support/CPP/string_view.h"10#include "src/stdlib/getenv.h"11#include "src/unistd/getcwd.h"12 13#include "test/IntegrationTest/test.h"14 15#include <errno.h>16#include <stdlib.h> // For malloc and free17 18using LIBC_NAMESPACE::cpp::string_view;19 20TEST_MAIN([[maybe_unused]] int argc, [[maybe_unused]] char **argv,21 [[maybe_unused]] char **envp) {22 char buffer[1024];23 ASSERT_TRUE(string_view(LIBC_NAMESPACE::getenv("PWD")) ==24 LIBC_NAMESPACE::getcwd(buffer, 1024));25 26 // nullptr buffer27 char *cwd = LIBC_NAMESPACE::getcwd(nullptr, 0);28 ASSERT_TRUE(string_view(LIBC_NAMESPACE::getenv("PWD")) == cwd);29 free(cwd);30 31 // Bad size32 cwd = LIBC_NAMESPACE::getcwd(buffer, 0);33 ASSERT_TRUE(cwd == nullptr);34 ASSERT_ERRNO_EQ(EINVAL);35 36 // Insufficient size37 errno = 0;38 cwd = LIBC_NAMESPACE::getcwd(buffer, 2);39 ASSERT_TRUE(cwd == nullptr);40 ASSERT_ERRNO_EQ(ERANGE);41 42 return 0;43}44