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/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 "test/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 }