[gtk+] Add a test for entry signals

[Matthias Clasen <matthiasc src gnome org>]

commit 5398a160ad3be46ce436d3813d9c57d7ebe41af3
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Jun 25 18:47:51 2011 -0400

    Add a test for entry signals
    
    These tests check that text and selection boundaries are in a
    consistent state when we emit notifications, that ::insert-text
    and ::delete-text are emitted before any changes, and that
    ::changed is emitted after property notifications when inserting
    or deleting text.

 gtk/tests/Makefile.am |    4 +
 gtk/tests/entry.c     |  321 +++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 325 insertions(+), 0 deletions(-)
---
diff --git a/gtk/tests/Makefile.am b/gtk/tests/Makefile.am
index 79b2ff2..8b2e131 100644
--- a/gtk/tests/Makefile.am
+++ b/gtk/tests/Makefile.am
@@ -119,6 +119,10 @@ TEST_PROGS			+= accessible
 accessible_SOURCES		 = accessible.c
 accessible_LDADD		 = $(progs_ldadd)
 
+TEST_PROGS			+= entry
+entry_SOURCES			 = entry.c
+entry_LDADD			 = $(progs_ldadd)
+
 EXTRA_DIST +=				\
 	file-chooser-test-dir/empty     \
 	file-chooser-test-dir/text.txt
diff --git a/gtk/tests/entry.c b/gtk/tests/entry.c
new file mode 100644
index 0000000..5077496
--- /dev/null
+++ b/gtk/tests/entry.c
@@ -0,0 +1,321 @@
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 2011 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <gtk/gtk.h>
+
+static gint serial = 0;
+
+typedef struct {
+  gint serial;
+  gint count;
+  gint start;
+  gint end;
+  gchar *text;
+  gchar *new_text;
+  gint position;
+  gint length;
+} EntryData;
+
+static void
+notify (GtkEditable *editable, GParamSpec *pspec, EntryData *data)
+{
+  data->serial = serial++;
+  data->count++;
+  data->text = gtk_editable_get_chars (editable, 0, -1);
+  gtk_editable_get_selection_bounds (editable, &data->start, &data->end);
+
+#if 0
+  g_print ("notify::%s\n", pspec->name);
+  g_print ("\ttext: %s\n", data->text);
+  g_print ("\tstart: %d\n", data->start);
+  g_print ("\tend: %d\n", data->end);
+#endif
+}
+
+static void
+insert_text (GtkEditable *editable,
+             const gchar *new_text,
+             gint         new_text_length,
+             gint        *position,
+             EntryData   *data)
+{
+  data->serial = serial++;
+  data->count++;
+  data->text = gtk_editable_get_chars (editable, 0, -1);
+  gtk_editable_get_selection_bounds (editable, &data->start, &data->end);
+  data->new_text = g_strdup (new_text);
+  data->position = *position;
+  data->length = new_text_length;
+
+#if 0
+  g_print ("insert-text \"%s\", %d\n", new_text, *position);
+  g_print ("\ttext: %s\n", data->text);
+  g_print ("\tstart: %d\n", data->start);
+  g_print ("\tend: %d\n", data->end);
+#endif
+}
+
+static void
+delete_text (GtkEditable *editable,
+             gint         start_pos,
+             gint         end_pos,
+             EntryData   *data)
+{
+  data->serial = serial++;
+  data->count++;
+  data->text = gtk_editable_get_chars (editable, 0, -1);
+  gtk_editable_get_selection_bounds (editable, &data->start, &data->end);
+  data->position = start_pos;
+  data->length = end_pos - start_pos;
+
+#if 0
+  g_print ("delete-text %d %d\n", start_pos, end_pos);
+  g_print ("\ttext: %s\n", data->text);
+  g_print ("\tstart: %d\n", data->start);
+  g_print ("\tend: %d\n", data->end);
+#endif
+}
+
+static void
+changed (GtkEditable *editable,
+         EntryData   *data)
+{
+  data->serial = serial++;
+  data->count++;
+  data->text = gtk_editable_get_chars (editable, 0, -1);
+  gtk_editable_get_selection_bounds (editable, &data->start, &data->end);
+
+#if 0
+  g_print ("changed\n");
+  g_print ("\ttext: %s\n", data->text);
+  g_print ("\tstart: %d\n", data->start);
+  g_print ("\tend: %d\n", data->end);
+#endif
+}
+
+static void
+test_insert (void)
+{
+  GtkWidget *entry;
+  gint pos;
+  EntryData data1;
+  EntryData data2;
+  EntryData data3;
+  EntryData data4;
+  EntryData data5;
+  EntryData data6;
+
+  entry = gtk_entry_new ();
+  g_object_ref_sink (entry);
+
+  gtk_entry_set_text (GTK_ENTRY (entry), "bar");
+  gtk_editable_set_position (GTK_EDITABLE (entry), -1);
+  pos = gtk_editable_get_position (GTK_EDITABLE (entry));
+  g_assert_cmpint (pos, ==, 3);
+
+  data1.count = 0;
+  data2.count = 0;
+  data3.count = 0;
+  data4.count = 0;
+  data5.count = 0;
+  data6.count = 0;
+  g_signal_connect (entry, "notify::cursor-position",
+                    G_CALLBACK (notify), &data1);
+  g_signal_connect (entry, "notify::selection-bound",
+                    G_CALLBACK (notify), &data2);
+  g_signal_connect (entry, "notify::text",
+                    G_CALLBACK (notify), &data3);
+  g_signal_connect (entry, "insert-text",
+                    G_CALLBACK (insert_text), &data4);
+  g_signal_connect (entry, "delete-text",
+                    G_CALLBACK (delete_text), &data5);
+  g_signal_connect (entry, "changed",
+                    G_CALLBACK (changed), &data6);
+
+  pos = 0;
+  gtk_editable_insert_text (GTK_EDITABLE (entry), "foo", -1, &pos);
+  g_assert_cmpint (pos, ==, 3);
+
+  pos = gtk_editable_get_position (GTK_EDITABLE (entry));
+  g_assert_cmpint (pos, ==, 6);
+
+  /* Check that notification for ::text, ::cursor-position and
+   * ::selection-bound happens in a consistent state after the
+   * change.
+   */
+  g_assert_cmpint (data1.count, ==, 1);
+  g_assert_cmpint (data1.start, ==, 6);
+  g_assert_cmpint (data1.end, ==, 6);
+  g_assert_cmpstr (data1.text, ==, "foobar");
+  g_free (data1.text);
+
+  g_assert_cmpint (data2.count, ==, 1);
+  g_assert_cmpint (data2.start, ==, 6);
+  g_assert_cmpint (data2.end, ==, 6);
+  g_assert_cmpstr (data2.text, ==, "foobar");
+  g_free (data2.text);
+
+  g_assert_cmpint (data3.count, ==, 1);
+  g_assert_cmpint (data3.start, ==, 6);
+  g_assert_cmpint (data3.end, ==, 6);
+  g_assert_cmpstr (data3.text, ==, "foobar");
+  g_free (data3.text);
+
+  /* Check that ::insert-text sees the state _before_ the insertion */
+  g_assert_cmpint (data4.count, ==, 1);
+  g_assert_cmpint (data4.start, ==, 3);
+  g_assert_cmpint (data4.end, ==, 3);
+  g_assert_cmpstr (data4.text, ==, "bar");
+  g_assert_cmpint (data4.position, ==, 0);
+  g_assert_cmpint (data4.length, ==, 3);
+  g_assert_cmpstr (data4.new_text, ==, "foo");
+  g_free (data4.text);
+  g_free (data4.new_text);
+
+  /* no deletion here */
+  g_assert_cmpint (data5.count, ==, 0);
+
+  /* Check that ::changed sees the post-change state */
+  g_assert_cmpint (data6.count, ==, 1);
+  g_assert_cmpint (data6.start, ==, 6);
+  g_assert_cmpint (data6.end, ==, 6);
+  g_assert_cmpstr (data6.text, ==, "foobar");
+  g_free (data6.text);
+
+  /* Now check ordering: ::insert-text comes before ::notify */
+  g_assert_cmpint (data4.serial, <, data1.serial);
+  g_assert_cmpint (data4.serial, <, data2.serial);
+  g_assert_cmpint (data4.serial, <, data3.serial);
+
+  /* ... and ::changed comes after ::notify */
+  g_assert_cmpint (data6.serial, >, data1.serial);
+  g_assert_cmpint (data6.serial, >, data2.serial);
+  g_assert_cmpint (data6.serial, >, data3.serial);
+
+  g_object_unref (entry);
+}
+
+static void
+test_delete (void)
+{
+  GtkWidget *entry;
+  gint pos;
+  EntryData data1;
+  EntryData data2;
+  EntryData data3;
+  EntryData data4;
+  EntryData data5;
+  EntryData data6;
+
+  entry = gtk_entry_new ();
+  g_object_ref_sink (entry);
+
+  gtk_entry_set_text (GTK_ENTRY (entry), "foobar");
+  gtk_editable_set_position (GTK_EDITABLE (entry), -1);
+  pos = gtk_editable_get_position (GTK_EDITABLE (entry));
+  g_assert_cmpint (pos, ==, 6);
+
+  data1.count = 0;
+  data2.count = 0;
+  data3.count = 0;
+  data4.count = 0;
+  data5.count = 0;
+  data6.count = 0;
+  g_signal_connect (entry, "notify::cursor-position",
+                    G_CALLBACK (notify), &data1);
+  g_signal_connect (entry, "notify::selection-bound",
+                    G_CALLBACK (notify), &data2);
+  g_signal_connect (entry, "notify::text",
+                    G_CALLBACK (notify), &data3);
+  g_signal_connect (entry, "insert-text",
+                    G_CALLBACK (insert_text), &data4);
+  g_signal_connect (entry, "delete-text",
+                    G_CALLBACK (delete_text), &data5);
+  g_signal_connect (entry, "changed",
+                    G_CALLBACK (changed), &data6);
+
+  gtk_editable_delete_text (GTK_EDITABLE (entry), 0, 3);
+
+  pos = gtk_editable_get_position (GTK_EDITABLE (entry));
+  g_assert_cmpint (pos, ==, 3);
+
+  /* Check that notification for ::text, ::cursor-position and
+   * ::selection-bound happens in a consistent state after the
+   * change.
+   */
+  g_assert_cmpint (data1.count, ==, 1);
+  g_assert_cmpint (data1.start, ==, 3);
+  g_assert_cmpint (data1.end, ==, 3);
+  g_assert_cmpstr (data1.text, ==, "bar");
+  g_free (data1.text);
+
+  g_assert_cmpint (data2.count, ==, 1);
+  g_assert_cmpint (data2.start, ==, 3);
+  g_assert_cmpint (data2.end, ==, 3);
+  g_assert_cmpstr (data2.text, ==, "bar");
+  g_free (data2.text);
+
+  g_assert_cmpint (data3.count, ==, 1);
+  g_assert_cmpint (data3.start, ==, 3);
+  g_assert_cmpint (data3.end, ==, 3);
+  g_assert_cmpstr (data3.text, ==, "bar");
+  g_free (data3.text);
+
+  /* no insertion here */
+  g_assert_cmpint (data4.count, ==, 0);
+
+  /* Check that ::delete-text sees the state _before_ the insertion */
+  g_assert_cmpint (data5.count, ==, 1);
+  g_assert_cmpint (data5.start, ==, 6);
+  g_assert_cmpint (data5.end, ==, 6);
+  g_assert_cmpstr (data5.text, ==, "foobar");
+  g_assert_cmpint (data5.position, ==, 0);
+  g_assert_cmpint (data5.length, ==, 3);
+  g_free (data5.text);
+
+  /* Check that ::changed sees the post-change state */
+  g_assert_cmpint (data6.count, ==, 1);
+  g_assert_cmpint (data6.start, ==, 3);
+  g_assert_cmpint (data6.end, ==, 3);
+  g_assert_cmpstr (data6.text, ==, "bar");
+  g_free (data6.text);
+
+  /* Now check ordering: ::delete-text comes before ::notify */
+  g_assert_cmpint (data5.serial, <, data1.serial);
+  g_assert_cmpint (data5.serial, <, data2.serial);
+  g_assert_cmpint (data5.serial, <, data3.serial);
+
+  /* ... and ::changed comes after ::notify */
+  g_assert_cmpint (data6.serial, >, data1.serial);
+  g_assert_cmpint (data6.serial, >, data2.serial);
+  g_assert_cmpint (data6.serial, >, data3.serial);
+  g_object_unref (entry);
+}
+
+int
+main (int   argc,
+      char *argv[])
+{
+  gtk_test_init (&argc, &argv);
+
+  g_test_add_func ("/entry/delete", test_delete);
+  g_test_add_func ("/entry/insert", test_insert);
+
+  return g_test_run();
+}