writing test for missing lines

lib/views/after_auth_screens/profile/edit_profile_page.dart

@@ -230,6 +230,7 @@ class _EditProfilePageState extends State<EditProfilePage> {
                 const Divider(),
                 // button to update the profile.
                 TextButton(
+                  key: const Key('updatebtn'),
                   onPressed: () {
                     model.updateUserProfile(
                       firstName: model.firstNameTextController.text,

test/widget_tests/after_auth_screens/profile/edit_profile_page_test.dart

@@ -27,6 +27,9 @@ import '../../../helpers/test_locator.dart';
 
 class MockBuildContext extends Mock implements BuildContext {}
 
+class MockEditProfilePageViewModel extends Mock
+    implements EditProfilePageViewModel {}
+
 class MockCallbackFunction extends Mock {
   void call();
 }
@@ -295,6 +298,32 @@ Future<void> main() async {
         tester.tap(imageAvatar);
       });
     });
+    testWidgets("Testing Update butoon", (tester) async {
+      await mockNetworkImages(() async {
+        final mockctx = MockBuildContext();
+        userConfig.updateUser(User());
+        userConfig.updateUser(
+          User(firstName: 'Test', lastName: 'Test', email: '[email protected]'),
+        );
+        await tester.pumpWidget(createChangePassScreenDark());
+        await tester.pumpAndSettle();
+        final screenScaffoldWidget = find.byKey(
+          const Key('EditProfileScreenScaffold'),
+        );
+        expect(screenScaffoldWidget, findsOneWidget);
+        expect(
+          (tester.firstWidget(find.byKey(const Key('Root'))) as MaterialApp)
+              .theme!
+              .scaffoldBackgroundColor,
+          TalawaTheme.darkTheme.scaffoldBackgroundColor,
+        );
+        final updateButtonFinder = find.byKey(const Key('updatebtn'));
+        expect(updateButtonFinder, findsOneWidget);
+        await tester.tap(updateButtonFinder);
+        await tester.pumpAndSettle();
+        // verify(FocusScope.of(mockctx).unfocus()).called(1);
+      });
+    });
   });
   group('Testing image selection and removal in Edit Profile Screen', () {
     setUp(() {