libc/test/src/stdio/rename_test.cpp

   1 //===-- Unittests for rename ----------------------------------------------===//
   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 "include/llvm-libc-macros/linux/sys-stat-macros.h"
  10 #include "include/llvm-libc-macros/linux/unistd-macros.h"
  11 #include "src/errno/libc_errno.h"
  12 #include "src/fcntl/open.h"
  13 #include "src/stdio/rename.h"
  14 #include "src/unistd/access.h"
  15 #include "src/unistd/close.h"
  16 #include "test/UnitTest/ErrnoSetterMatcher.h"
  17 #include "test/UnitTest/Test.h"
  18
  19 TEST(LlvmLibcRenameTest, CreateAndRenameFile) {
  20   // The test strategy is to create a file and rename it, and also verify that
  21   // it was renamed.
  22   LIBC_NAMESPACE::libc_errno = 0;
  23   using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Fails;
  24   using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Succeeds;
  25
  26   constexpr const char *FILENAME0 = "rename.test.file0";
  27   auto TEST_FILEPATH0 = libc_make_test_file_path(FILENAME0);
  28
  29   int fd = LIBC_NAMESPACE::open(TEST_FILEPATH0, O_WRONLY | O_CREAT, S_IRWXU);
  30   ASSERT_ERRNO_SUCCESS();
  31   ASSERT_GT(fd, 0);
  32   ASSERT_THAT(LIBC_NAMESPACE::close(fd), Succeeds(0));
  33   ASSERT_THAT(LIBC_NAMESPACE::access(TEST_FILEPATH0, F_OK), Succeeds(0));
  34
  35   constexpr const char *FILENAME1 = "rename.test.file1";
  36   auto TEST_FILEPATH1 = libc_make_test_file_path(FILENAME1);
  37   ASSERT_THAT(LIBC_NAMESPACE::rename(TEST_FILEPATH0, TEST_FILEPATH1),
  38               Succeeds(0));
  39   ASSERT_THAT(LIBC_NAMESPACE::access(TEST_FILEPATH1, F_OK), Succeeds(0));
  40   ASSERT_THAT(LIBC_NAMESPACE::access(TEST_FILEPATH0, F_OK), Fails(ENOENT));
  41 }
  42
  43 TEST(LlvmLibcRenameTest, RenameNonExistent) {
  44   using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Fails;
  45
  46   constexpr const char *FILENAME1 = "rename.test.file1";
  47   auto TEST_FILEPATH1 = libc_make_test_file_path(FILENAME1);
  48
  49   ASSERT_THAT(LIBC_NAMESPACE::rename("non-existent", TEST_FILEPATH1),
  50               Fails(ENOENT));
  51 }