tests/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 #define TEST_IF_CLASS(klass) \
  20      OBJECT_CLASS_CHECK(TestIfClass, (klass), TYPE_TEST_IF)
  21 #define TEST_IF_GET_CLASS(obj) \
  22      OBJECT_GET_CLASS(TestIfClass, (obj), TYPE_TEST_IF)
  23 #define TEST_IF(obj) \
  24      INTERFACE_CHECK(TestIf, (obj), TYPE_TEST_IF)
  25
  26 typedef struct TestIf TestIf;
  27
  28 typedef struct TestIfClass {
  29     InterfaceClass parent_class;
  30
  31     uint32_t test;
  32 } TestIfClass;
  33
  34 static const TypeInfo test_if_info = {
  35     .name          = TYPE_TEST_IF,
  36     .parent        = TYPE_INTERFACE,
  37     .class_size = sizeof(TestIfClass),
  38 };
  39
  40 #define PATTERN 0xFAFBFCFD
  41
  42 static void test_class_init(ObjectClass *oc, void *data)
  43 {
  44     TestIfClass *tc = TEST_IF_CLASS(oc);
  45
  46     g_assert(tc);
  47     tc->test = PATTERN;
  48 }
  49
  50 #define TYPE_DIRECT_IMPL "direct-impl"
  51
  52 static const TypeInfo direct_impl_info = {
  53     .name = TYPE_DIRECT_IMPL,
  54     .parent = TYPE_OBJECT,
  55     .class_init = test_class_init,
  56     .interfaces = (InterfaceInfo[]) {
  57         { TYPE_TEST_IF },
  58         { }
  59     }
  60 };
  61
  62 #define TYPE_INTERMEDIATE_IMPL "intermediate-impl"
  63
  64 static const TypeInfo intermediate_impl_info = {
  65     .name = TYPE_INTERMEDIATE_IMPL,
  66     .parent = TYPE_DIRECT_IMPL,
  67 };
  68
  69 static void test_interface_impl(const char *type)
  70 {
  71     Object *obj = object_new(type);
  72     TestIf *iobj = TEST_IF(obj);
  73     TestIfClass *ioc = TEST_IF_GET_CLASS(iobj);
  74
  75     g_assert(iobj);
  76     g_assert(ioc->test == PATTERN);
  77     object_unref(obj);
  78 }
  79
  80 static void interface_direct_test(void)
  81 {
  82     test_interface_impl(TYPE_DIRECT_IMPL);
  83 }
  84
  85 static void interface_intermediate_test(void)
  86 {
  87     test_interface_impl(TYPE_INTERMEDIATE_IMPL);
  88 }
  89
  90 int main(int argc, char **argv)
  91 {
  92     g_test_init(&argc, &argv, NULL);
  93
  94     module_call_init(MODULE_INIT_QOM);
  95     type_register_static(&test_if_info);
  96     type_register_static(&direct_impl_info);
  97     type_register_static(&intermediate_impl_info);
  98
  99     g_test_add_func("/qom/interface/direct_impl", interface_direct_test);
 100     g_test_add_func("/qom/interface/intermediate_impl",
 101                     interface_intermediate_test);
 102
 103     return g_test_run();
 104 }