tests/device-introspect-test.c

   1 /*
   2  * Device introspection test cases
   3  *
   4  * Copyright (c) 2015 Red Hat Inc.
   5  *
   6  * Authors:
   7  *  Markus Armbruster <armbru@redhat.com>,
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  10  * See the COPYING file in the top-level directory.
  11  */
  12
  13 /*
  14  * Covers QMP device-list-properties and HMP device_add help.  We
  15  * currently don't check that their output makes sense, only that QEMU
  16  * survives.  Useful since we've had an astounding number of crash
  17  * bugs around here.
  18  */
  19
  20 #include "qemu/osdep.h"
  21 #include "qemu-common.h"
  22 #include "qapi/qmp/qstring.h"
  23 #include "libqtest.h"
  24
  25 const char common_args[] = "-nodefaults -machine none";
  26
  27 static QList *device_type_list(bool abstract)
  28 {
  29     QDict *resp;
  30     QList *ret;
  31
  32     resp = qmp("{'execute': 'qom-list-types',"
  33                " 'arguments': {'implements': 'device', 'abstract': %i}}",
  34                abstract);
  35     g_assert(qdict_haskey(resp, "return"));
  36     ret = qdict_get_qlist(resp, "return");
  37     QINCREF(ret);
  38     QDECREF(resp);
  39     return ret;
  40 }
  41
  42 static void test_one_device(const char *type)
  43 {
  44     QDict *resp;
  45     char *help, *qom_tree;
  46
  47     resp = qmp("{'execute': 'device-list-properties',"
  48                " 'arguments': {'typename': %s}}",
  49                type);
  50     QDECREF(resp);
  51
  52     help = hmp("device_add \"%s,help\"", type);
  53     g_free(help);
  54
  55     /*
  56      * Some devices leave dangling pointers in QOM behind.
  57      * "info qom-tree" has a good chance at crashing then
  58      */
  59     qom_tree = hmp("info qom-tree");
  60     g_free(qom_tree);
  61 }
  62
  63 static void test_device_intro_list(void)
  64 {
  65     QList *types;
  66     char *help;
  67
  68     qtest_start(common_args);
  69
  70     types = device_type_list(true);
  71     QDECREF(types);
  72
  73     help = hmp("device_add help");
  74     g_free(help);
  75
  76     qtest_end();
  77 }
  78
  79 static void test_device_intro_none(void)
  80 {
  81     qtest_start(common_args);
  82     test_one_device("nonexistent");
  83     qtest_end();
  84 }
  85
  86 static void test_device_intro_abstract(void)
  87 {
  88     qtest_start(common_args);
  89     test_one_device("device");
  90     qtest_end();
  91 }
  92
  93 static void test_device_intro_concrete(void)
  94 {
  95     QList *types;
  96     QListEntry *entry;
  97     const char *type;
  98
  99     qtest_start(common_args);
 100     types = device_type_list(false);
 101
 102     QLIST_FOREACH_ENTRY(types, entry) {
 103         type = qdict_get_try_str(qobject_to_qdict(qlist_entry_obj(entry)),
 104                                 "name");
 105         g_assert(type);
 106         test_one_device(type);
 107     }
 108
 109     QDECREF(types);
 110     qtest_end();
 111 }
 112
 113 int main(int argc, char **argv)
 114 {
 115     g_test_init(&argc, &argv, NULL);
 116
 117     qtest_add_func("device/introspect/list", test_device_intro_list);
 118     qtest_add_func("device/introspect/none", test_device_intro_none);
 119     qtest_add_func("device/introspect/abstract", test_device_intro_abstract);
 120     qtest_add_func("device/introspect/concrete", test_device_intro_concrete);
 121
 122     return g_test_run();
 123 }