add simple test app for modal window race conditions

src/tests/modal.c

@@ -0,0 +1,21 @@
+#include <Ecore_X.h>
+
+int
+main(void)
+{
+   Ecore_X_Window a, b;
+
+   ecore_x_init(NULL);
+
+   a = ecore_x_window_new(0, 0, 0, 100, 100);
+   ecore_x_window_show(a);
+
+   b = ecore_x_window_new(0, 200, 200, 100, 100);
+   ecore_x_window_show(b);
+   ecore_x_icccm_transient_for_set(b, a);
+   ecore_x_netwm_state_request_send(b, 0,
+                                      ECORE_X_WINDOW_STATE_MODAL, -1, 1);
+   ecore_x_icccm_name_class_set(b, "modal", "test");
+   ecore_main_loop_begin();
+   return 0;
+}