feat: add unit tests

Author: MummanaSubramanya

test/unit/webdriver/flutter_integration/flutter_actions_test.py

@@ -87,7 +87,7 @@ def test_scroll_till_visible(self):
         assert arguments == expected_arguments
 
     @httpretty.activate
-    def test_scroll_till_visible_with_params(self):
+    def test_scroll_till_visible_with_kwargs(self):
         driver = flutter_w3c_driver()
         flutter = FlutterCommand(driver)