1 //===-- Unittests for unlinkat --------------------------------------------===//
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/fcntl/open.h"
10 #include "src/fcntl/openat.h"
11 #include "src/unistd/close.h"
12 #include "src/unistd/unlinkat.h"
13 #include "test/ErrnoSetterMatcher.h"
14 #include "utils/UnitTest/Test.h"
15 #include "utils/testutils/FDReader.h"
16 
17 #include <errno.h>
18 
19 TEST(LlvmLibcUnlinkatTest, CreateAndDeleteTest) {
20   using __llvm_libc::testing::ErrnoSetterMatcher::Succeeds;
21   constexpr const char *TEST_DIR = "testdata";
22   constexpr const char *TEST_FILE = "openat.test";
23   int dir_fd = __llvm_libc::open(TEST_DIR, O_DIRECTORY);
24   ASSERT_EQ(errno, 0);
25   ASSERT_GT(dir_fd, 0);
26   int write_fd =
27       __llvm_libc::openat(dir_fd, TEST_FILE, O_WRONLY | O_CREAT, S_IRWXU);
28   ASSERT_EQ(errno, 0);
29   ASSERT_GT(write_fd, 0);
30   ASSERT_THAT(__llvm_libc::close(write_fd), Succeeds(0));
31   ASSERT_THAT(__llvm_libc::unlinkat(dir_fd, TEST_FILE, 0), Succeeds(0));
32   ASSERT_THAT(__llvm_libc::close(dir_fd), Succeeds(0));
33 }
34 
35 TEST(LlvmLibcUnlinkatTest, UnlinkatNonExistentFile) {
36   constexpr const char *TEST_DIR = "testdata";
37   int dir_fd = __llvm_libc::open(TEST_DIR, O_DIRECTORY);
38   ASSERT_EQ(errno, 0);
39   ASSERT_GT(dir_fd, 0);
40   using __llvm_libc::testing::ErrnoSetterMatcher::Fails;
41   using __llvm_libc::testing::ErrnoSetterMatcher::Succeeds;
42   ASSERT_THAT(__llvm_libc::unlinkat(dir_fd, "non-existent-file", 0),
43               Fails(ENOENT));
44   ASSERT_THAT(__llvm_libc::close(dir_fd), Succeeds(0));
45 }
46