Add bounded MCP text input for Sprinter programs

tests/sdbg/test_mcp_adapter.py

@@ -77,6 +77,32 @@ class McpAdapterTests(unittest.TestCase):
         self.assertEqual(keys[1]['tag'], keys[-2]['tag'])
         self.assertTrue(all(item['owner'] == client.owner for item in keys))
 
+    def test_type_string_checks_layout_before_input_and_releases_each_key(self):
+        calls = []
+        frame = 0
+
+        def rpc(path, method, arguments, timeout=10, **identity):
+            nonlocal frame
+            calls.append((method, arguments))
+            if method == 'status':
+                return {'session_id': 'test-session', 'build_id': 'test-build',
+                        'generation': 7, 'running': True}
+            if method == 'snapshot':
+                frame += 1
+                return {'state': 'running', 'frame': frame}
+            return {}
+
+        client = McpSession('/tmp/sprinter-test.sock', rpc=rpc)
+        with self.assertRaisesRegex(SessionError, 'нет раскладки'):
+            client.type_string('a€')
+        self.assertEqual(calls, [])
+        result = client.type_string('ab')
+        self.assertEqual(result, {'requested': 2, 'typed': 2,
+                                  'complete': True, 'stopped': False})
+        keys = [args for method, args in calls if method == 'input_key']
+        self.assertEqual([item['down'] for item in keys],
+                         [True, False, True, False])
+
 
 if __name__ == '__main__':
     unittest.main()