1 /* GLib testing framework examples and tests
2 * Copyright (C) 2018 Canonical Ltd
3 * Authors: Marco Trevisan <marco@ubuntu.com>
4 *
5 * This work is provided "as is"; redistribution and modification
6 * in whole or in part, in any medium, physical or electronic is
7 * permitted without restriction.
8 *
9 * This work is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12 *
13 * In no event shall the authors or contributors be liable for any
14 * direct, indirect, incidental, special, exemplary, or consequential
15 * damages (including, but not limited to, procurement of substitute
16 * goods or services; loss of use, data, or profits; or business
17 * interruption) however caused and on any theory of liability, whether
18 * in contract, strict liability, or tort (including negligence or
19 * otherwise) arising in any way out of the use of this software, even
20 * if advised of the possibility of such damage.
21 */
22
23 #include <glib-object.h>
24 #include <string.h>
25
26 G_DECLARE_DERIVABLE_TYPE (TestAutoCleanupBase, test_base_auto_cleanup, TEST, BASE_AUTO_CLEANUP, GObject)
27
28 struct _TestAutoCleanupBaseClass {
29 GObjectClass parent_class;
30 };
31
32 G_DECLARE_FINAL_TYPE (TestAutoCleanup, test_auto_cleanup, TEST, AUTO_CLEANUP, TestAutoCleanupBase)
33
34 struct _TestAutoCleanup
35 {
36 TestAutoCleanupBase parent_instance;
37 };
38
G_DEFINE_TYPE(TestAutoCleanup,test_auto_cleanup,G_TYPE_OBJECT)39 G_DEFINE_TYPE (TestAutoCleanup, test_auto_cleanup, G_TYPE_OBJECT)
40
41 static void
42 test_auto_cleanup_class_init (TestAutoCleanupClass *class)
43 {
44 }
45
46 static void
test_auto_cleanup_init(TestAutoCleanup * tac)47 test_auto_cleanup_init (TestAutoCleanup *tac)
48 {
49 }
50
51 static TestAutoCleanup *
test_auto_cleanup_new(void)52 test_auto_cleanup_new (void)
53 {
54 return g_object_new (test_auto_cleanup_get_type (), NULL);
55 }
56
57 /* Verify that an object declared with G_DECLARE_FINAL_TYPE provides by default
58 * autocleanup functions, defined using the ones of the base type (defined with
59 * G_DECLARE_DERIVABLE_TYPE) and so that it can be used with g_autoptr */
60 static void
test_autoptr(void)61 test_autoptr (void)
62 {
63 TestAutoCleanup *tac_ptr = test_auto_cleanup_new ();
64 g_object_add_weak_pointer (G_OBJECT (tac_ptr), (gpointer *) &tac_ptr);
65
66 {
67 g_autoptr (TestAutoCleanup) tac = tac_ptr;
68 }
69 #ifdef __GNUC__
70 g_assert_null (tac_ptr);
71 #endif
72 }
73
74 /* Verify that an object declared with G_DECLARE_FINAL_TYPE provides by default
75 * autocleanup functions, defined using the ones of the base type (defined with
76 * G_DECLARE_DERIVABLE_TYPE) and that stealing an autopointer works properly */
77 static void
test_autoptr_steal(void)78 test_autoptr_steal (void)
79 {
80 g_autoptr (TestAutoCleanup) tac1 = test_auto_cleanup_new ();
81 TestAutoCleanup *tac_ptr = tac1;
82
83 g_object_add_weak_pointer (G_OBJECT (tac_ptr), (gpointer *) &tac_ptr);
84
85 {
86 g_autoptr (TestAutoCleanup) tac2 = g_steal_pointer (&tac1);
87 g_assert_nonnull (tac_ptr);
88 g_assert_null (tac1);
89 g_assert_true (tac2 == tac_ptr);
90 }
91 #ifdef __GNUC__
92 g_assert_null (tac_ptr);
93 #endif
94 }
95
96 /* Verify that an object declared with G_DECLARE_FINAL_TYPE provides by default
97 * autolist cleanup functions defined using the ones of the parent type
98 * and so that can be used with g_autolist, and that freeing the list correctly
99 * unrefs the object too */
100 static void
test_autolist(void)101 test_autolist (void)
102 {
103 TestAutoCleanup *tac1 = test_auto_cleanup_new ();
104 TestAutoCleanup *tac2 = test_auto_cleanup_new ();
105 g_autoptr (TestAutoCleanup) tac3 = test_auto_cleanup_new ();
106
107 g_object_add_weak_pointer (G_OBJECT (tac1), (gpointer *) &tac1);
108 g_object_add_weak_pointer (G_OBJECT (tac2), (gpointer *) &tac2);
109 g_object_add_weak_pointer (G_OBJECT (tac3), (gpointer *) &tac3);
110
111 {
112 g_autolist (TestAutoCleanup) l = NULL;
113
114 l = g_list_prepend (l, tac1);
115 l = g_list_prepend (l, tac2);
116 }
117
118 /* Only assert if autoptr works */
119 #ifdef __GNUC__
120 g_assert_null (tac1);
121 g_assert_null (tac2);
122 #endif
123 g_assert_nonnull (tac3);
124
125 g_clear_object (&tac3);
126 g_assert_null (tac3);
127 }
128
129 /* Verify that an object declared with G_DECLARE_FINAL_TYPE provides by default
130 * autoslist cleanup functions (defined using the ones of the base type declared
131 * with G_DECLARE_DERIVABLE_TYPE) and so that can be used with g_autoslist, and
132 * that freeing the slist correctly unrefs the object too */
133 static void
test_autoslist(void)134 test_autoslist (void)
135 {
136 TestAutoCleanup *tac1 = test_auto_cleanup_new ();
137 TestAutoCleanup *tac2 = test_auto_cleanup_new ();
138 g_autoptr (TestAutoCleanup) tac3 = test_auto_cleanup_new ();
139
140 g_object_add_weak_pointer (G_OBJECT (tac1), (gpointer *) &tac1);
141 g_object_add_weak_pointer (G_OBJECT (tac2), (gpointer *) &tac2);
142 g_object_add_weak_pointer (G_OBJECT (tac3), (gpointer *) &tac3);
143
144 {
145 g_autoslist (TestAutoCleanup) l = NULL;
146
147 l = g_slist_prepend (l, tac1);
148 l = g_slist_prepend (l, tac2);
149 }
150
151 /* Only assert if autoptr works */
152 #ifdef __GNUC__
153 g_assert_null (tac1);
154 g_assert_null (tac2);
155 #endif
156 g_assert_nonnull (tac3);
157
158 g_clear_object (&tac3);
159 g_assert_null (tac3);
160 }
161
162 /* Verify that an object declared with G_DECLARE_FINAL_TYPE provides by default
163 * autoqueue cleanup functions (defined using the ones of the base type declared
164 * with G_DECLARE_DERIVABLE_TYPE) and so that can be used with g_autoqueue, and
165 * that freeing the queue correctly unrefs the object too */
166 static void
test_autoqueue(void)167 test_autoqueue (void)
168 {
169 TestAutoCleanup *tac1 = test_auto_cleanup_new ();
170 TestAutoCleanup *tac2 = test_auto_cleanup_new ();
171 g_autoptr (TestAutoCleanup) tac3 = test_auto_cleanup_new ();
172
173 g_object_add_weak_pointer (G_OBJECT (tac1), (gpointer *) &tac1);
174 g_object_add_weak_pointer (G_OBJECT (tac2), (gpointer *) &tac2);
175 g_object_add_weak_pointer (G_OBJECT (tac3), (gpointer *) &tac3);
176
177 {
178 g_autoqueue (TestAutoCleanup) q = g_queue_new ();
179
180 g_queue_push_head (q, tac1);
181 g_queue_push_tail (q, tac2);
182 }
183
184 /* Only assert if autoptr works */
185 #ifdef __GNUC__
186 g_assert_null (tac1);
187 g_assert_null (tac2);
188 #endif
189 g_assert_nonnull (tac3);
190
191 g_clear_object (&tac3);
192 g_assert_null (tac3);
193 }
194
195 int
main(int argc,gchar * argv[])196 main (int argc, gchar *argv[])
197 {
198 g_test_init (&argc, &argv, NULL);
199
200 g_test_add_func ("/autoptr/autoptr", test_autoptr);
201 g_test_add_func ("/autoptr/autoptr_steal", test_autoptr_steal);
202 g_test_add_func ("/autoptr/autolist", test_autolist);
203 g_test_add_func ("/autoptr/autoslist", test_autoslist);
204 g_test_add_func ("/autoptr/autoqueue", test_autoqueue);
205
206 return g_test_run ();
207 }
208