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 <glib.h>
  22 #include "qemu-common.h"
  23 #include "qapi/qmp/qstring.h"
  24 #include "libqtest.h"
  25
  26 const char common_args[] = "-nodefaults -machine none";
  27
  28 static QList *device_type_list(bool abstract)
  29 {
  30     QDict *resp;
  31     QList *ret;
  32
  33     resp = qmp("{'execute': 'qom-list-types',"
  34                " 'arguments': {'implements': 'device', 'abstract': %i}}",
  35                abstract);
  36     g_assert(qdict_haskey(resp, "return"));
  37     ret = qdict_get_qlist(resp, "return");
  38     QINCREF(ret);
  39     QDECREF(resp);
  40     return ret;
  41 }
  42
  43 static void test_one_device(const char *type)
  44 {
  45     QDict *resp;
  46     char *help, *qom_tree;
  47
  48     resp = qmp("{'execute': 'device-list-properties',"
  49                " 'arguments': {'typename': %s}}",
  50                type);
  51     QDECREF(resp);
  52
  53     help = hmp("device_add \"%s,help\"", type);
  54     g_free(help);
  55
  56     /*
  57      * Some devices leave dangling pointers in QOM behind.
  58      * "info qom-tree" has a good chance at crashing then
  59      */
  60     qom_tree = hmp("info qom-tree");
  61     g_free(qom_tree);
  62 }
  63
  64 static void test_device_intro_list(void)
  65 {
  66     QList *types;
  67     char *help;
  68
  69     qtest_start(common_args);
  70
  71     types = device_type_list(true);
  72     QDECREF(types);
  73
  74     help = hmp("device_add help");
  75     g_free(help);
  76
  77     qtest_end();
  78 }
  79
  80 static void test_device_intro_none(void)
  81 {
  82     qtest_start(common_args);
  83     test_one_device("nonexistent");
  84     qtest_end();
  85 }
  86
  87 static void test_device_intro_abstract(void)
  88 {
  89     qtest_start(common_args);
  90     test_one_device("device");
  91     qtest_end();
  92 }
  93
  94 static void test_device_intro_concrete(void)
  95 {
  96     QList *types;
  97     QListEntry *entry;
  98     const char *type;
  99
 100     qtest_start(common_args);
 101     types = device_type_list(false);
 102
 103     QLIST_FOREACH_ENTRY(types, entry) {
 104         type = qdict_get_try_str(qobject_to_qdict(qlist_entry_obj(entry)),
 105                                 "name");
 106         g_assert(type);
 107         test_one_device(type);
 108     }
 109
 110     QDECREF(types);
 111     qtest_end();
 112 }
 113
 114 int main(int argc, char **argv)
 115 {
 116     g_test_init(&argc, &argv, NULL);
 117
 118     qtest_add_func("device/introspect/list", test_device_intro_list);
 119     qtest_add_func("device/introspect/none", test_device_intro_none);
 120     qtest_add_func("device/introspect/abstract", test_device_intro_abstract);
 121     qtest_add_func("device/introspect/concrete", test_device_intro_concrete);
 122
 123     return g_test_run();
 124 }