[gtk/wip/matthiasc/focus2: 91/91] focus test: Verify the focus chain

[Matthias Clasen <matthiasc src gnome org>]

commit 5ce164ce8b52247619e7d61354161813eb88ca84
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Mar 8 13:48:09 2019 -0500

    focus test: Verify the focus chain
    
    Make sure that the focus chain always leads from
    the toplevel to the focus widget. We don't verify
    that it is properly unset everywhere else, atm.

 testsuite/gtk/focus.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
---
diff --git a/testsuite/gtk/focus.c b/testsuite/gtk/focus.c
index f8e4557ac4..82c188e0e2 100644
--- a/testsuite/gtk/focus.c
+++ b/testsuite/gtk/focus.c
@@ -75,6 +75,21 @@ focus_out (GtkEventController *controller,
   add_event (controller, FALSE, mode, detail, s);
 }
 
+static void
+verify_focus_chain (GtkWidget *window)
+{
+  GtkWidget *child, *last;
+
+  child = window;
+  while (child)
+    {
+      last = child;
+      child = gtk_widget_get_focus_child (child);
+    }
+
+  g_assert (last == gtk_root_get_focus (GTK_ROOT (window)));
+}
+
 static void
 add_controller (GtkWidget *widget, GString *s)
 {
@@ -151,6 +166,7 @@ test_window_focus (void)
 
   /* show puts the initial focus on box */
   g_assert (gtk_window_get_focus (GTK_WINDOW (window)) == box);
+  verify_focus_chain (window);
 
   if (g_test_verbose ())
     g_print ("-> box\n%s\n", s->str);
@@ -158,6 +174,7 @@ test_window_focus (void)
   g_assert_cmpstr (s->str, ==,
 "window: focus-in GDK_CROSSING_NORMAL GDK_NOTIFY_VIRTUAL is-focus: 0 contains-focus: 1 origin: (null) 
target: box\n"
 "box: focus-in GDK_CROSSING_NORMAL GDK_NOTIFY_ANCESTOR is-focus: 1 contains-focus: 0 origin: (null) target: 
box\n");
+
   g_string_truncate (s, 0);
 
   gtk_widget_grab_focus (entry1);
@@ -173,6 +190,7 @@ test_window_focus (void)
   g_string_truncate (s, 0);
 
   g_assert (gtk_window_get_focus (GTK_WINDOW (window)) == entry1);
+  verify_focus_chain (window);
 
   gtk_widget_grab_focus (entry2);
 
@@ -188,6 +206,7 @@ test_window_focus (void)
   g_string_truncate (s, 0);
 
   g_assert (gtk_window_get_focus (GTK_WINDOW (window)) == entry2);
+  verify_focus_chain (window);
 
   gtk_widget_grab_focus (box);
 
@@ -204,6 +223,7 @@ test_window_focus (void)
   gtk_widget_hide (window);
 
   g_assert (gtk_window_get_focus (GTK_WINDOW (window)) == box);
+  verify_focus_chain (window);
    
   gtk_window_set_focus (GTK_WINDOW (window), entry1);