LCOV - code coverage report
Current view: top level - gobject/tests - basic-signals.c (source / functions) Coverage Total Hit
Test: unnamed Lines: 83.3 % 36 30
Test Date: 2024-11-26 05:23:01 Functions: 75.0 % 8 6
Branches: - 0 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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