os/ossrv/glib/tsrc/BC/tests/gobject/accumulator.c
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution.
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/* GObject - GLib Type, Object, Parameter and Signal Library
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 * Copyright (C) 2001, 2003 Red Hat, Inc.
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 * Portion Copyright © 2008 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
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 * This library is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2 of the License, or (at your option) any later version.
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 *
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 * This library is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General
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 * Public License along with this library; if not, write to the
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 * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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 * Boston, MA 02111-1307, USA.
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 */
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#undef	G_LOG_DOMAIN
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#define	G_LOG_DOMAIN "TestAccumulator"
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#undef G_DISABLE_ASSERT
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#undef G_DISABLE_CHECKS
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#undef G_DISABLE_CAST_CHECKS
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#include <string.h>
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#include	<glib-object.h>
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#include "testmarshal.h"
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#include "testcommon.h"
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#ifdef SYMBIAN
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#include "mrt2_glib2_test.h"
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#endif //SYMBIAN
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/* What this test tests is the behavior of signal accumulators
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 * Two accumulators are tested:
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 *
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 * 1: A custom accumulator that appends the returned strings
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 * 2: The standard g_signal_accumulator_true_handled that stops
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 *    emission on TRUE returns.
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 */
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/*
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 * TestObject, a parent class for TestObject
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 */
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#define TEST_TYPE_OBJECT          (test_object_get_type ())
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typedef struct _TestObject        TestObject;
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typedef struct _TestObjectClass   TestObjectClass;
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struct _TestObject
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{
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  GObject parent_instance;
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};
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struct _TestObjectClass
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{
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  GObjectClass parent_class;
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  gchar*   (*test_signal1) (TestObject *tobject,
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			    gint        param);
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  gboolean (*test_signal2) (TestObject *tobject,
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			    gint        param);
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};
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static GType test_object_get_type (void);
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static gboolean
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test_signal1_accumulator (GSignalInvocationHint *ihint,
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			  GValue                *return_accu,
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			  const GValue          *handler_return,
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			  gpointer               data)
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{
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  const gchar *accu_string = g_value_get_string (return_accu);
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  const gchar *new_string = g_value_get_string (handler_return);
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  gchar *result_string;
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  if (accu_string)
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    result_string = g_strconcat (accu_string, new_string, NULL);
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  else if (new_string)
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    result_string = g_strdup (new_string);
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  else
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    result_string = NULL;
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  g_value_set_string_take_ownership (return_accu, result_string);
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  return TRUE;
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}
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gchar*
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test_object_signal1_callback_before (TestObject *tobject,
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				     gint        param,
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				     gpointer    data)
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{
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  return g_strdup ("<before>");
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}
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gchar*
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test_object_real_signal1 (TestObject *tobject,
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			  gint        param)
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{
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  return g_strdup ("<default>");
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}
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gchar*
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test_object_signal1_callback_after (TestObject *tobject,
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				    gint        param,
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				    gpointer    data)
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{
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  return g_strdup ("<after>");
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}
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gboolean
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test_object_signal2_callback_before (TestObject *tobject,
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				     gint        param)
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{
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  switch (param)
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    {
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    case 1: return TRUE;
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    case 2: return FALSE;
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    case 3: return FALSE;
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    case 4: return FALSE;
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    }
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  g_assert_not_reached ();
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  return FALSE;
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}
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gboolean
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test_object_real_signal2 (TestObject *tobject,
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			  gint        param)
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{
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  switch (param)
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    {
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    case 1: g_assert_not_reached (); return FALSE;
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    case 2: return TRUE;
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    case 3: return FALSE;
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    case 4: return FALSE;
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    }
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  g_assert_not_reached ();
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  return FALSE;
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}
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gboolean
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test_object_signal2_callback_after (TestObject *tobject,
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				     gint        param)
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{
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  switch (param)
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    {
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    case 1: g_assert_not_reached (); return FALSE;
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    case 2: g_assert_not_reached (); return FALSE;
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    case 3: return TRUE;
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    case 4: return FALSE;
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    }
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  g_assert_not_reached ();
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  return FALSE;
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}
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static void
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test_object_class_init (TestObjectClass *class)
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{
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  class->test_signal1 = test_object_real_signal1;
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  class->test_signal2 = test_object_real_signal2;
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  g_signal_new ("test-signal1",
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		G_OBJECT_CLASS_TYPE (class),
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		G_SIGNAL_RUN_LAST,
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		G_STRUCT_OFFSET (TestObjectClass, test_signal1),
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		test_signal1_accumulator, NULL,
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		test_marshal_STRING__INT,
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		G_TYPE_STRING, 1, G_TYPE_INT);
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  g_signal_new ("test-signal2",
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		G_OBJECT_CLASS_TYPE (class),
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		G_SIGNAL_RUN_LAST,
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		G_STRUCT_OFFSET (TestObjectClass, test_signal2),
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		g_signal_accumulator_true_handled, NULL,
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		test_marshal_BOOLEAN__INT,
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		G_TYPE_BOOLEAN, 1, G_TYPE_INT);
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}
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static DEFINE_TYPE(TestObject, test_object,
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		   test_object_class_init, NULL, NULL,
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		   G_TYPE_OBJECT)
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int
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main (int   argc,
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      char *argv[])
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{
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  TestObject *object;
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  gchar *string_result;
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  gboolean bool_result;
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	#ifdef SYMBIAN
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  g_log_set_handler (NULL,  G_LOG_FLAG_FATAL| G_LOG_FLAG_RECURSION | G_LOG_LEVEL_CRITICAL | G_LOG_LEVEL_WARNING | G_LOG_LEVEL_MESSAGE | G_LOG_LEVEL_INFO | G_LOG_LEVEL_DEBUG, &mrtLogHandler, NULL);
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  g_set_print_handler(mrtPrintHandler);
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  #endif /*SYMBIAN*/
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  g_log_set_always_fatal (g_log_set_always_fatal (G_LOG_FATAL_MASK) |
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			  G_LOG_LEVEL_WARNING |
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			  G_LOG_LEVEL_CRITICAL);
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  g_type_init ();
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  object = g_object_new (TEST_TYPE_OBJECT, NULL);
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  g_signal_connect (object, "test-signal1",
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		    G_CALLBACK (test_object_signal1_callback_before), NULL);
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  g_signal_connect_after (object, "test-signal1",
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			  G_CALLBACK (test_object_signal1_callback_after), NULL);
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  g_signal_emit_by_name (object, "test-signal1", 0, &string_result);
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  g_assert (strcmp (string_result, "<before><default><after>") == 0);
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  g_free (string_result);
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  g_signal_connect (object, "test-signal2",
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		    G_CALLBACK (test_object_signal2_callback_before), NULL);
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  g_signal_connect_after (object, "test-signal2",
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			  G_CALLBACK (test_object_signal2_callback_after), NULL);
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  bool_result = FALSE;
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  g_signal_emit_by_name (object, "test-signal2", 1, &bool_result);
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  g_assert (bool_result == TRUE);
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  bool_result = FALSE;
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  g_signal_emit_by_name (object, "test-signal2", 2, &bool_result);
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  g_assert (bool_result == TRUE);
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  bool_result = FALSE;
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  g_signal_emit_by_name (object, "test-signal2", 3, &bool_result);
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  g_assert (bool_result == TRUE);
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  bool_result = TRUE;
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  g_signal_emit_by_name (object, "test-signal2", 4, &bool_result);
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  g_assert (bool_result == FALSE);
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#ifdef SYMBIAN
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testResultXml("accumulator");
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#endif  //SYMBIAN
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  return 0;
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}