tests: Add minimize/unminimize commands

Add commands to request the client to minimize or unminimize the window;
unminimize doesn't currently work for GTK+ because it expects XMapRequest
to be received by the window manager, but the window is already mapped.

https://bugzilla.gnome.org/show_bug.cgi?id=737233

src/tests/README

@@ -71,6 +71,11 @@ lower <client-id>/<window-id>
   for Wayland clients. (It's also considered discouraged, but supported, for
   non-override-redirect X11 clients.)
 
+minimize <client-id>/<window-id>
+unminimize <client-id>/<window-id>
+  Ask the client to minimize or unminimize the given window ID. This older
+  term for this operation is "iconify".
+
 destroy <client-id>/<window-id>
   Destroy the given window
 

src/tests/test-client.c

@@ -263,6 +263,34 @@ process_line (const char *line)
       XSyncSetCounter (gdk_x11_display_get_xdisplay (gdk_display_get_default ()),
                        counter, sync_value);
     }
+  else if (strcmp (argv[0], "minimize") == 0)
+    {
+      if (argc != 2)
+        {
+          g_print ("usage: minimize <id>");
+          goto out;
+        }
+
+      GtkWidget *window = lookup_window (argv[1]);
+      if (!window)
+        goto out;
+
+      gtk_window_iconify (GTK_WINDOW (window));
+    }
+  else if (strcmp (argv[0], "unminimize") == 0)
+    {
+      if (argc != 2)
+        {
+          g_print ("usage: unminimize <id>");
+          goto out;
+        }
+
+      GtkWidget *window = lookup_window (argv[1]);
+      if (!window)
+        goto out;
+
+      gtk_window_deiconify (GTK_WINDOW (window));
+    }
   else
     {
       g_print ("Unknown command %s", argv[0]);

src/tests/test-runner.c

@@ -773,6 +773,8 @@ test_case_do (TestCase *test,
            strcmp (argv[0], "activate") == 0 ||
            strcmp (argv[0], "raise") == 0 ||
            strcmp (argv[0], "lower") == 0 ||
+           strcmp (argv[0], "minimize") == 0 ||
+           strcmp (argv[0], "unminimize") == 0 ||
            strcmp (argv[0], "destroy") == 0)
     {
       if (argc != 2)
@@ -814,6 +816,7 @@ test_case_do (TestCase *test,
     {
       if (!test_case_assert_stacking (test, argv + 1, argc - 1, error))
         return FALSE;
+
       if (!test_case_check_xserver_stacking (test, error))
         return FALSE;
     }