LCOV - code coverage report
Current view: top level - glib/gobject/tests - basic-signals.c (source / functions) Hit Total Coverage
Test: unnamed Lines: 30 36 83.3 %
Date: 2024-04-30 05:17:35 Functions: 6 8 75.0 %
Branches: 1 2 50.0 %

           Branch data     Line data    Source code
       1                 :            : /* GObject - GLib Type, Object, Parameter and Signal Library
       2                 :            :  * Copyright (C) 2013 Red Hat, Inc.
       3                 :            :  * Copy and pasted from accumulator.c and modified.
       4                 :            :  *
       5                 :            :  * SPDX-License-Identifier: LGPL-2.1-or-later
       6                 :            :  *
       7                 :            :  * This library is free software; you can redistribute it and/or
       8                 :            :  * modify it under the terms of the GNU Lesser General Public
       9                 :            :  * License as published by the Free Software Foundation; either
      10                 :            :  * version 2.1 of the License, or (at your option) any later version.
      11                 :            :  *
      12                 :            :  * This library is distributed in the hope that it will be useful,
      13                 :            :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      14                 :            :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      15                 :            :  * Lesser General Public License for more details.
      16                 :            :  *
      17                 :            :  * You should have received a copy of the GNU Lesser General
      18                 :            :  * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
      19                 :            :  */
      20                 :            : 
      21                 :            : #include <glib-object.h>
      22                 :            : 
      23                 :            : #include "testcommon.h"
      24                 :            : 
      25                 :            : /* What this test tests is the behavior of signal disconnection
      26                 :            :  * from within a signal handler for the signal being disconnected.
      27                 :            :  *
      28                 :            :  * The test demonstrates that signal handlers disconnected from a signal
      29                 :            :  * from an earlier handler in the same emission will not be run.
      30                 :            :  *
      31                 :            :  * It also demonstrates that signal handlers connected from a signal
      32                 :            :  * from an earlier handler in the same emission will not be run.
      33                 :            :  */
      34                 :            : 
      35                 :            : /* TestObject, a parent class for TestObject */
      36                 :            : #define TEST_TYPE_OBJECT         (test_object_get_type ())
      37                 :            : typedef struct _TestObject        TestObject;
      38                 :            : typedef struct _TestObjectClass   TestObjectClass;
      39                 :            : 
      40                 :            : static gboolean callback1_ran = FALSE, callback2_ran = FALSE,
      41                 :            :   callback3_ran = FALSE, default_handler_ran = FALSE;
      42                 :            : 
      43                 :            : struct _TestObject
      44                 :            : {
      45                 :            :   GObject parent_instance;
      46                 :            : };
      47                 :            : 
      48                 :            : struct _TestObjectClass
      49                 :            : {
      50                 :            :   GObjectClass parent_class;
      51                 :            : 
      52                 :            :   void   (*test_signal) (TestObject *object);
      53                 :            : };
      54                 :            : 
      55                 :            : static GType test_object_get_type (void);
      56                 :            : 
      57                 :            : static void
      58                 :          1 : test_object_real_signal (TestObject *object)
      59                 :            : {
      60                 :          1 :   default_handler_ran = TRUE;
      61                 :          1 : }
      62                 :            : 
      63                 :            : static void
      64                 :          0 : test_object_signal_callback3 (TestObject *object,
      65                 :            :                               gpointer    data)
      66                 :            : {
      67                 :          0 :   callback3_ran = TRUE;
      68                 :          0 : }
      69                 :            : 
      70                 :            : static void
      71                 :          0 : test_object_signal_callback2 (TestObject *object,
      72                 :            :                               gpointer    data)
      73                 :            : {
      74                 :          0 :   callback2_ran = TRUE;
      75                 :          0 : }
      76                 :            : 
      77                 :            : static void
      78                 :          1 : test_object_signal_callback1 (TestObject *object,
      79                 :            :                               gpointer    data)
      80                 :            : {
      81                 :          1 :   callback1_ran = TRUE;
      82                 :          1 :   g_signal_handlers_disconnect_by_func (G_OBJECT (object),
      83                 :            :                                         test_object_signal_callback2,
      84                 :            :                                         data);
      85                 :          1 :   g_signal_connect (object, "test-signal",
      86                 :            :                     G_CALLBACK (test_object_signal_callback3), NULL);
      87                 :          1 : }
      88                 :            : 
      89                 :            : static void
      90                 :          1 : test_object_class_init (TestObjectClass *class)
      91                 :            : {
      92                 :          1 :   class->test_signal = test_object_real_signal;
      93                 :            : 
      94                 :          1 :   g_signal_new ("test-signal",
      95                 :            :                 G_OBJECT_CLASS_TYPE (class),
      96                 :            :                 G_SIGNAL_RUN_LAST,
      97                 :            :                 G_STRUCT_OFFSET (TestObjectClass, test_signal),
      98                 :            :                 NULL, NULL, NULL, G_TYPE_NONE, 0);
      99                 :          1 : }
     100                 :            : 
     101         [ +  - ]:          1 : static DEFINE_TYPE(TestObject, test_object,
     102                 :            :                    test_object_class_init, NULL, NULL,
     103                 :            :                    G_TYPE_OBJECT)
     104                 :            : 
     105                 :            : static void
     106                 :          1 : test_basic_signals (void)
     107                 :            : {
     108                 :            :   TestObject *object;
     109                 :            : 
     110                 :          1 :   object = g_object_new (TEST_TYPE_OBJECT, NULL);
     111                 :            : 
     112                 :          1 :   g_signal_connect (object, "test-signal",
     113                 :            :                     G_CALLBACK (test_object_signal_callback1), NULL);
     114                 :          1 :   g_signal_connect (object, "test-signal",
     115                 :            :                     G_CALLBACK (test_object_signal_callback2), NULL);
     116                 :          1 :   g_signal_emit_by_name (object, "test-signal");
     117                 :            : 
     118                 :          1 :   g_assert_true (callback1_ran);
     119                 :          1 :   g_assert_false (callback2_ran);
     120                 :          1 :   g_assert_false (callback3_ran);
     121                 :          1 :   g_assert_true (default_handler_ran);
     122                 :            : 
     123                 :          1 :   g_object_unref (object);
     124                 :          1 : }
     125                 :            : 
     126                 :            : int
     127                 :          1 : main (int  argc,
     128                 :            :       char *argv[])
     129                 :            : {
     130                 :          1 :   g_log_set_always_fatal (g_log_set_always_fatal (G_LOG_FATAL_MASK) |
     131                 :          1 :                           G_LOG_LEVEL_WARNING |
     132                 :            :                           G_LOG_LEVEL_CRITICAL);
     133                 :            : 
     134                 :          1 :   g_test_init (&argc, &argv, NULL);
     135                 :            : 
     136                 :          1 :   g_test_add_func ("/gobject/basic-signals", test_basic_signals);
     137                 :            : 
     138                 :          1 :   return g_test_run ();
     139                 :            : }

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