| //===-- Unittests for isatty ----------------------------------------------===// |
| // |
| // 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/isatty.h" |
| #include "test/UnitTest/ErrnoSetterMatcher.h" |
| #include "test/UnitTest/Test.h" |
| |
| #include <sys/stat.h> |
| |
| using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Fails; |
| using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Succeeds; |
| |
| TEST(LlvmLibcIsATTYTest, StdInOutTests) { |
| // If stdin is connected to a terminal, assume that all of the standard i/o |
| // fds are. |
| LIBC_NAMESPACE::libc_errno = 0; |
| if (LIBC_NAMESPACE::isatty(0)) { |
| EXPECT_THAT(LIBC_NAMESPACE::isatty(0), Succeeds(1)); // stdin |
| EXPECT_THAT(LIBC_NAMESPACE::isatty(1), Succeeds(1)); // stdout |
| EXPECT_THAT(LIBC_NAMESPACE::isatty(2), Succeeds(1)); // stderr |
| } else { |
| EXPECT_THAT(LIBC_NAMESPACE::isatty(0), Fails(ENOTTY, 0)); // stdin |
| EXPECT_THAT(LIBC_NAMESPACE::isatty(1), Fails(ENOTTY, 0)); // stdout |
| EXPECT_THAT(LIBC_NAMESPACE::isatty(2), Fails(ENOTTY, 0)); // stderr |
| } |
| } |
| |
| TEST(LlvmLibcIsATTYTest, BadFdTest) { |
| LIBC_NAMESPACE::libc_errno = 0; |
| EXPECT_THAT(LIBC_NAMESPACE::isatty(-1), Fails(EBADF, 0)); // invalid fd |
| } |
| |
| TEST(LlvmLibcIsATTYTest, DevTTYTest) { |
| constexpr const char *FILENAME = "/dev/tty"; |
| auto TTY_FILE = libc_make_test_file_path(FILENAME); |
| LIBC_NAMESPACE::libc_errno = 0; |
| int fd = LIBC_NAMESPACE::open(TTY_FILE, O_RDONLY); |
| if (fd > 0) { |
| ASSERT_ERRNO_SUCCESS(); |
| EXPECT_THAT(LIBC_NAMESPACE::isatty(fd), Succeeds(1)); |
| ASSERT_THAT(LIBC_NAMESPACE::close(fd), Succeeds(0)); |
| } |
| } |
| |
| TEST(LlvmLibcIsATTYTest, FileTest) { |
| constexpr const char *FILENAME = "isatty.test"; |
| auto TEST_FILE = libc_make_test_file_path(FILENAME); |
| LIBC_NAMESPACE::libc_errno = 0; |
| int fd = LIBC_NAMESPACE::open(TEST_FILE, O_WRONLY | O_CREAT, S_IRWXU); |
| ASSERT_ERRNO_SUCCESS(); |
| ASSERT_GT(fd, 0); |
| EXPECT_THAT(LIBC_NAMESPACE::isatty(fd), Fails(ENOTTY, 0)); |
| ASSERT_THAT(LIBC_NAMESPACE::close(fd), Succeeds(0)); |
| } |