[gtk+/a11y] Add a testcase for a very old bug

[Matthias Clasen <matthiasc src gnome org>]

commit 5efb19ffae532b4ce94bcf571ba14b04b96c76ef
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Jun 23 17:52:39 2011 -0400

    Add a testcase for a very old bug
    
    This tests a problem that was first noticed in 2003, in
    bug 126797: The text of a label accessible is not properly
    updated when the label switches from !use-markup to use-markup.

 tests/a11y/text.c |   31 +++++++++++++++++++++++++++++++
 1 files changed, 31 insertions(+), 0 deletions(-)
---
diff --git a/tests/a11y/text.c b/tests/a11y/text.c
index 0c7323d..791be05 100644
--- a/tests/a11y/text.c
+++ b/tests/a11y/text.c
@@ -1866,11 +1866,42 @@ add_text_tests (GtkWidget *widget)
   g_object_unref (widget);
 }
 
+static void
+test_bold_label (void)
+{
+  GtkWidget *label;
+  AtkObject *atk_obj;
+  gchar *text;
+
+  g_test_bug ("126797");
+
+  label = gtk_label_new ("<b>Bold?</b>");
+  g_object_ref_sink (label);
+
+  atk_obj = gtk_widget_get_accessible (label);
+
+  text = atk_text_get_text (ATK_TEXT (atk_obj), 0, -1);
+  g_assert_cmpstr (text, ==, "<b>Bold?</b>");
+  g_free (text);
+
+  gtk_label_set_use_markup (GTK_LABEL (label), TRUE);
+
+  text = atk_text_get_text (ATK_TEXT (atk_obj), 0, -1);
+  g_assert_cmpstr (text, ==, "Bold?");
+  g_free (text);
+
+  g_object_unref (label);
+}
+
 int
 main (int argc, char *argv[])
 {
   gtk_test_init (&argc, &argv, NULL);
 
+  g_test_bug_base ("http://bugzilla.gnome.org/";);
+
+  g_test_add_func ("/text/bold/GtkLabel", test_bold_label);
+
   add_text_tests (gtk_text_view_new ());
   add_text_tests (gtk_label_new (""));
   add_text_tests (gtk_entry_new ());