| 1 | /* Self tests for scoped_fd for GDB, the GNU debugger. |
| 2 | |
| 3 | Copyright (C) 2018 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GDB. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 3 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #include "defs.h" |
| 21 | |
| 22 | #include "common/filestuff.h" |
| 23 | #include "common/scoped_fd.h" |
| 24 | #include "config.h" |
| 25 | #include "selftest.h" |
| 26 | |
| 27 | namespace selftests { |
| 28 | namespace scoped_fd { |
| 29 | |
| 30 | /* Test that the file descriptor is closed. */ |
| 31 | static void |
| 32 | test_destroy () |
| 33 | { |
| 34 | char filename[] = "scoped_fd-selftest-XXXXXX"; |
| 35 | int fd = gdb_mkostemp_cloexec (filename); |
| 36 | SELF_CHECK (fd >= 0); |
| 37 | |
| 38 | unlink (filename); |
| 39 | errno = 0; |
| 40 | { |
| 41 | ::scoped_fd sfd (fd); |
| 42 | |
| 43 | SELF_CHECK (sfd.get () == fd); |
| 44 | } |
| 45 | |
| 46 | SELF_CHECK (close (fd) == -1 && errno == EBADF); |
| 47 | } |
| 48 | |
| 49 | /* Test that the file descriptor can be released. */ |
| 50 | static void |
| 51 | test_release () |
| 52 | { |
| 53 | char filename[] = "scoped_fd-selftest-XXXXXX"; |
| 54 | int fd = gdb_mkostemp_cloexec (filename); |
| 55 | SELF_CHECK (fd >= 0); |
| 56 | |
| 57 | unlink (filename); |
| 58 | errno = 0; |
| 59 | { |
| 60 | ::scoped_fd sfd (fd); |
| 61 | |
| 62 | SELF_CHECK (sfd.release () == fd); |
| 63 | } |
| 64 | |
| 65 | SELF_CHECK (close (fd) == 0 || errno != EBADF); |
| 66 | } |
| 67 | |
| 68 | /* Test that the file descriptor can be converted to a FILE *. */ |
| 69 | static void |
| 70 | test_to_file () |
| 71 | { |
| 72 | char filename[] = "scoped_fd-selftest-XXXXXX"; |
| 73 | |
| 74 | ::scoped_fd sfd (gdb_mkostemp_cloexec (filename)); |
| 75 | SELF_CHECK (sfd.get () >= 0); |
| 76 | |
| 77 | unlink (filename); |
| 78 | |
| 79 | gdb_file_up file = sfd.to_file ("rw"); |
| 80 | SELF_CHECK (file != nullptr); |
| 81 | SELF_CHECK (sfd.get () == -1); |
| 82 | } |
| 83 | |
| 84 | /* Run selftests. */ |
| 85 | static void |
| 86 | run_tests () |
| 87 | { |
| 88 | test_destroy (); |
| 89 | test_release (); |
| 90 | test_to_file (); |
| 91 | } |
| 92 | |
| 93 | } /* namespace scoped_fd */ |
| 94 | } /* namespace selftests */ |
| 95 | |
| 96 | void |
| 97 | _initialize_scoped_fd_selftests () |
| 98 | { |
| 99 | selftests::register_test ("scoped_fd", |
| 100 | selftests::scoped_fd::run_tests); |
| 101 | } |