LXR qemu/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
  26const char common_args[] = "-nodefaults -machine none";
  27
  28static 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
  43static 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
  64static 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
  80static void test_device_intro_none(void)
  81{
  82    qtest_start(common_args);
  83    test_one_device("nonexistent");
  84    qtest_end();
  85}
  86
  87static void test_device_intro_abstract(void)
  88{
  89    qtest_start(common_args);
  90    test_one_device("device");
  91    qtest_end();
  92}
  93
  94static 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
 114int 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}
 125