tests/unit/check-qom-interface.c

   1 /*
   2  * QOM interface test.
   3  *
   4  * Copyright (C) 2013 Red Hat Inc.
   5  *
   6  * Authors:
   7  *  Igor Mammedov <imammedo@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 #include "qemu/osdep.h"
  13
  14 #include "qom/object.h"
  15 #include "qemu/module.h"
  16
  17
  18 #define TYPE_TEST_IF "test-interface"
  19 typedef struct TestIfClass TestIfClass;
  20 DECLARE_CLASS_CHECKERS(TestIfClass, TEST_IF,
  21                        TYPE_TEST_IF)
  22 #define TEST_IF(obj) \
  23      INTERFACE_CHECK(TestIf, (obj), TYPE_TEST_IF)
  24
  25 typedef struct TestIf TestIf;
  26
  27 struct TestIfClass {
  28     InterfaceClass parent_class;
  29
  30     uint32_t test;
  31 };
  32
  33 static const TypeInfo test_if_info = {
  34     .name          = TYPE_TEST_IF,
  35     .parent        = TYPE_INTERFACE,
  36     .class_size = sizeof(TestIfClass),
  37 };
  38
  39 #define PATTERN 0xFAFBFCFD
  40
  41 static void test_class_init(ObjectClass *oc, void *data)
  42 {
  43     TestIfClass *tc = TEST_IF_CLASS(oc);
  44
  45     g_assert(tc);
  46     tc->test = PATTERN;
  47 }
  48
  49 #define TYPE_DIRECT_IMPL "direct-impl"
  50
  51 static const TypeInfo direct_impl_info = {
  52     .name = TYPE_DIRECT_IMPL,
  53     .parent = TYPE_OBJECT,
  54     .class_init = test_class_init,
  55     .interfaces = (InterfaceInfo[]) {
  56         { TYPE_TEST_IF },
  57         { }
  58     }
  59 };
  60
  61 #define TYPE_INTERMEDIATE_IMPL "intermediate-impl"
  62
  63 static const TypeInfo intermediate_impl_info = {
  64     .name = TYPE_INTERMEDIATE_IMPL,
  65     .parent = TYPE_DIRECT_IMPL,
  66 };
  67
  68 static void test_interface_impl(const char *type)
  69 {
  70     Object *obj = object_new(type);
  71     TestIf *iobj = TEST_IF(obj);
  72     TestIfClass *ioc = TEST_IF_GET_CLASS(iobj);
  73
  74     g_assert(iobj);
  75     g_assert(ioc->test == PATTERN);
  76     object_unref(obj);
  77 }
  78
  79 static void interface_direct_test(void)
  80 {
  81     test_interface_impl(TYPE_DIRECT_IMPL);
  82 }
  83
  84 static void interface_intermediate_test(void)
  85 {
  86     test_interface_impl(TYPE_INTERMEDIATE_IMPL);
  87 }
  88
  89 int main(int argc, char **argv)
  90 {
  91     g_test_init(&argc, &argv, NULL);
  92
  93     module_call_init(MODULE_INIT_QOM);
  94     type_register_static(&test_if_info);
  95     type_register_static(&direct_impl_info);
  96     type_register_static(&intermediate_impl_info);
  97
  98     g_test_add_func("/qom/interface/direct_impl", interface_direct_test);
  99     g_test_add_func("/qom/interface/intermediate_impl",
 100                     interface_intermediate_test);
 101
 102     return g_test_run();
 103 }