glib/gobject/tests/autoptr.c
Philip Withnall df647a583d tests: Fix a couple of static analysis warnings in autoptr tests
The static analyser can’t yet work out how `g_autofree` works, so
disable those tests.

Signed-off-by: Philip Withnall <withnall@endlessm.com>

Helps: #1767
2019-09-05 14:17:02 +01:00

211 lines
6.2 KiB
C

/* GLib testing framework examples and tests
* Copyright (C) 2018 Canonical Ltd
* Authors: Marco Trevisan <marco@ubuntu.com>
*
* This work is provided "as is"; redistribution and modification
* in whole or in part, in any medium, physical or electronic is
* permitted without restriction.
*
* This work is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* In no event shall the authors or contributors be liable for any
* direct, indirect, incidental, special, exemplary, or consequential
* damages (including, but not limited to, procurement of substitute
* goods or services; loss of use, data, or profits; or business
* interruption) however caused and on any theory of liability, whether
* in contract, strict liability, or tort (including negligence or
* otherwise) arising in any way out of the use of this software, even
* if advised of the possibility of such damage.
*/
#include <glib-object.h>
#include <string.h>
G_DECLARE_DERIVABLE_TYPE (TestAutoCleanupBase, test_base_auto_cleanup, TEST, BASE_AUTO_CLEANUP, GObject)
struct _TestAutoCleanupBaseClass {
GObjectClass parent_class;
};
G_DECLARE_FINAL_TYPE (TestAutoCleanup, test_auto_cleanup, TEST, AUTO_CLEANUP, TestAutoCleanupBase)
struct _TestAutoCleanup
{
TestAutoCleanupBase parent_instance;
};
G_DEFINE_TYPE (TestAutoCleanup, test_auto_cleanup, G_TYPE_OBJECT)
static void
test_auto_cleanup_class_init (TestAutoCleanupClass *class)
{
}
static void
test_auto_cleanup_init (TestAutoCleanup *tac)
{
}
static TestAutoCleanup *
test_auto_cleanup_new (void)
{
return g_object_new (test_auto_cleanup_get_type (), NULL);
}
/* Verify that an object declared with G_DECLARE_FINAL_TYPE provides by default
* autocleanup functions, defined using the ones of the base type (defined with
* G_DECLARE_DERIVABLE_TYPE) and so that it can be used with g_autoptr */
static void
test_autoptr (void)
{
TestAutoCleanup *tac_ptr = test_auto_cleanup_new ();
g_object_add_weak_pointer (G_OBJECT (tac_ptr), (gpointer *) &tac_ptr);
{
g_autoptr (TestAutoCleanup) tac = tac_ptr;
}
#ifdef __GNUC__
g_assert_null (tac_ptr);
#endif
}
/* Verify that an object declared with G_DECLARE_FINAL_TYPE provides by default
* autocleanup functions, defined using the ones of the base type (defined with
* G_DECLARE_DERIVABLE_TYPE) and that stealing an autopointer works properly */
static void
test_autoptr_steal (void)
{
g_autoptr (TestAutoCleanup) tac1 = test_auto_cleanup_new ();
TestAutoCleanup *tac_ptr = tac1;
g_object_add_weak_pointer (G_OBJECT (tac_ptr), (gpointer *) &tac_ptr);
{
g_autoptr (TestAutoCleanup) tac2 = g_steal_pointer (&tac1);
g_assert_nonnull (tac_ptr);
g_assert_null (tac1);
g_assert_true (tac2 == tac_ptr);
}
#ifdef __GNUC__
g_assert_null (tac_ptr);
#endif
}
/* Verify that an object declared with G_DECLARE_FINAL_TYPE provides by default
* autolist cleanup functions defined using the ones of the parent type
* and so that can be used with g_autolist, and that freeing the list correctly
* unrefs the object too */
static void
test_autolist (void)
{
TestAutoCleanup *tac1 = test_auto_cleanup_new ();
TestAutoCleanup *tac2 = test_auto_cleanup_new ();
g_autoptr (TestAutoCleanup) tac3 = test_auto_cleanup_new ();
g_object_add_weak_pointer (G_OBJECT (tac1), (gpointer *) &tac1);
g_object_add_weak_pointer (G_OBJECT (tac2), (gpointer *) &tac2);
g_object_add_weak_pointer (G_OBJECT (tac3), (gpointer *) &tac3);
{
g_autolist (TestAutoCleanup) l = NULL;
l = g_list_prepend (l, tac1);
l = g_list_prepend (l, tac2);
/* Squash warnings about dead stores */
(void) l;
}
/* Only assert if autoptr works */
#ifdef __GNUC__
g_assert_null (tac1);
g_assert_null (tac2);
#endif
g_assert_nonnull (tac3);
g_clear_object (&tac3);
g_assert_null (tac3);
}
/* Verify that an object declared with G_DECLARE_FINAL_TYPE provides by default
* autoslist cleanup functions (defined using the ones of the base type declared
* with G_DECLARE_DERIVABLE_TYPE) and so that can be used with g_autoslist, and
* that freeing the slist correctly unrefs the object too */
static void
test_autoslist (void)
{
TestAutoCleanup *tac1 = test_auto_cleanup_new ();
TestAutoCleanup *tac2 = test_auto_cleanup_new ();
g_autoptr (TestAutoCleanup) tac3 = test_auto_cleanup_new ();
g_object_add_weak_pointer (G_OBJECT (tac1), (gpointer *) &tac1);
g_object_add_weak_pointer (G_OBJECT (tac2), (gpointer *) &tac2);
g_object_add_weak_pointer (G_OBJECT (tac3), (gpointer *) &tac3);
{
g_autoslist (TestAutoCleanup) l = NULL;
l = g_slist_prepend (l, tac1);
l = g_slist_prepend (l, tac2);
}
/* Only assert if autoptr works */
#ifdef __GNUC__
g_assert_null (tac1);
g_assert_null (tac2);
#endif
g_assert_nonnull (tac3);
g_clear_object (&tac3);
g_assert_null (tac3);
}
/* Verify that an object declared with G_DECLARE_FINAL_TYPE provides by default
* autoqueue cleanup functions (defined using the ones of the base type declared
* with G_DECLARE_DERIVABLE_TYPE) and so that can be used with g_autoqueue, and
* that freeing the queue correctly unrefs the object too */
static void
test_autoqueue (void)
{
TestAutoCleanup *tac1 = test_auto_cleanup_new ();
TestAutoCleanup *tac2 = test_auto_cleanup_new ();
g_autoptr (TestAutoCleanup) tac3 = test_auto_cleanup_new ();
g_object_add_weak_pointer (G_OBJECT (tac1), (gpointer *) &tac1);
g_object_add_weak_pointer (G_OBJECT (tac2), (gpointer *) &tac2);
g_object_add_weak_pointer (G_OBJECT (tac3), (gpointer *) &tac3);
{
g_autoqueue (TestAutoCleanup) q = g_queue_new ();
g_queue_push_head (q, tac1);
g_queue_push_tail (q, tac2);
}
/* Only assert if autoptr works */
#ifdef __GNUC__
g_assert_null (tac1);
g_assert_null (tac2);
#endif
g_assert_nonnull (tac3);
g_clear_object (&tac3);
g_assert_null (tac3);
}
int
main (int argc, gchar *argv[])
{
g_test_init (&argc, &argv, NULL);
g_test_add_func ("/autoptr/autoptr", test_autoptr);
g_test_add_func ("/autoptr/autoptr_steal", test_autoptr_steal);
g_test_add_func ("/autoptr/autolist", test_autolist);
g_test_add_func ("/autoptr/autoslist", test_autoslist);
g_test_add_func ("/autoptr/autoqueue", test_autoqueue);
return g_test_run ();
}