libc/test/src/unistd/unlinkat_test.cpp

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