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 "qemu-common.h"
  22#include "qapi/qmp/qstring.h"
  23#include "libqtest.h"
  24
  25const char common_args[] = "-nodefaults -machine none";
  26
  27static 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
  42static 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
  63static 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
  79static void test_device_intro_none(void)
  80{
  81    qtest_start(common_args);
  82    test_one_device("nonexistent");
  83    qtest_end();
  84}
  85
  86static void test_device_intro_abstract(void)
  87{
  88    qtest_start(common_args);
  89    test_one_device("device");
  90    qtest_end();
  91}
  92
  93static 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
 113int 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}
 124