tests: Emulate clicking all submitting buttons

examples/test_layout.rs

@@ -14,14 +14,37 @@ fn check_layout(name: &str) {
         .expect("layout broken");
     
     let context = xkb::Context::new(xkb::CONTEXT_NO_FLAGS);
-    xkb::Keymap::new_from_string(
+    
+    let keymap_str = layout.keymap_str
+        .clone()
+        .into_string().expect("Failed to decode keymap string");
+    
+    let keymap = xkb::Keymap::new_from_string(
         &context,
-        layout.keymap_str
-            .clone()
-            .into_string().expect("Failed to decode keymap string"),
+        keymap_str.clone(),
         xkb::KEYMAP_FORMAT_TEXT_V1,
         xkb::KEYMAP_COMPILE_NO_FLAGS,
     ).expect("Failed to create keymap");
+
+    let state = xkb::State::new(&keymap);
+    
+    // "Press" each button with keysyms
+    for view in layout.views.values() {
+        for row in &view.rows {
+            for button in &row.buttons {
+                let keystate = button.state.borrow();
+                for keycode in &keystate.keycodes {
+                    match state.key_get_one_sym(*keycode) {
+                        xkb::KEY_NoSymbol => {
+                            eprintln!("{}", keymap_str);
+                            panic!("Keysym {} on key {:?} can't be resolved", keycode, button.name);
+                        },
+                        _ => {},
+                    }
+                }
+            }
+        }
+    }
 }
 
 fn main() -> () {