tests/drive_del-test.c

   1 /*
   2  * blockdev.c test cases
   3  *
   4  * Copyright (C) 2013-2014 Red Hat Inc.
   5  *
   6  * Authors:
   7  *  Stefan Hajnoczi <stefanha@redhat.com>
   8  *
   9  * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
  10  * See the COPYING.LIB file in the top-level directory.
  11  */
  12
  13 #include <glib.h>
  14 #include <string.h>
  15 #include "libqtest.h"
  16
  17 static void drive_add(void)
  18 {
  19     QDict *response;
  20
  21     response = qmp("{'execute': 'human-monitor-command',"
  22                    " 'arguments': {"
  23                    "   'command-line': 'drive_add 0 if=none,id=drive0'"
  24                    "}}");
  25     g_assert(response);
  26     g_assert_cmpstr(qdict_get_try_str(response, "return"), ==, "OK\r\n");
  27     QDECREF(response);
  28 }
  29
  30 static void drive_del(void)
  31 {
  32     QDict *response;
  33
  34     response = qmp("{'execute': 'human-monitor-command',"
  35                    " 'arguments': {"
  36                    "   'command-line': 'drive_del drive0'"
  37                    "}}");
  38     g_assert(response);
  39     g_assert_cmpstr(qdict_get_try_str(response, "return"), ==, "");
  40     QDECREF(response);
  41 }
  42
  43 static void test_drive_without_dev(void)
  44 {
  45     /* Start with an empty drive */
  46     qtest_start("-drive if=none,id=drive0");
  47
  48     /* Delete the drive */
  49     drive_del();
  50
  51     /* Ensure re-adding the drive works - there should be no duplicate ID error
  52      * because the old drive must be gone.
  53      */
  54     drive_add();
  55
  56     qtest_end();
  57 }
  58
  59 static void test_after_failed_device_add(void)
  60 {
  61     QDict *response;
  62     QDict *error;
  63
  64     qtest_start("-drive if=none,id=drive0");
  65
  66     /* Make device_add fail.  If this leaks the virtio-blk-pci device then a
  67      * reference to drive0 will also be held (via qdev properties).
  68      */
  69     response = qmp("{'execute': 'device_add',"
  70                    " 'arguments': {"
  71                    "   'driver': 'virtio-blk-pci',"
  72                    "   'drive': 'drive0'"
  73                    "}}");
  74     g_assert(response);
  75     error = qdict_get_qdict(response, "error");
  76     g_assert_cmpstr(qdict_get_try_str(error, "class"), ==, "GenericError");
  77     QDECREF(response);
  78
  79     /* Delete the drive */
  80     drive_del();
  81
  82     /* Try to re-add the drive.  This fails with duplicate IDs if a leaked
  83      * virtio-blk-pci exists that holds a reference to the old drive0.
  84      */
  85     drive_add();
  86
  87     qtest_end();
  88 }
  89
  90 int main(int argc, char **argv)
  91 {
  92     const char *arch = qtest_get_arch();
  93
  94     g_test_init(&argc, &argv, NULL);
  95
  96     qtest_add_func("/drive_del/without-dev", test_drive_without_dev);
  97
  98     /* TODO I guess any arch with PCI would do */
  99     if (!strcmp(arch, "i386") || !strcmp(arch, "x86_64")) {
 100         qtest_add_func("/drive_del/after_failed_device_add",
 101                        test_after_failed_device_add);
 102     }
 103
 104     return g_test_run();
 105 }