android_webview_test.dart

// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'package:flutter_test/flutter_test.dart';
import 'package:mockito/annotations.dart';
import 'package:mockito/mockito.dart';
import 'package:webview_flutter_android/src/android_webview.dart';
import 'package:webview_flutter_android/src/android_webview.g.dart';
import 'package:webview_flutter_android/src/android_webview_api_impls.dart';
import 'package:webview_flutter_android/src/instance_manager.dart';

import 'android_webview_test.mocks.dart';
import 'test_android_webview.g.dart';

@GenerateMocks(<Type>[
  CookieManagerHostApi,
  DownloadListener,
  JavaScriptChannel,
  TestDownloadListenerHostApi,
  TestJavaObjectHostApi,
  TestJavaScriptChannelHostApi,
  TestWebChromeClientHostApi,
  TestWebSettingsHostApi,
  TestWebStorageHostApi,
  TestWebViewClientHostApi,
  TestWebViewHostApi,
  TestAssetManagerHostApi,
  WebChromeClient,
  WebView,
  WebViewClient,
])
void main() {
  TestWidgetsFlutterBinding.ensureInitialized();

  group('Android WebView', () {
    group('JavaObject', () {
      late MockTestJavaObjectHostApi mockPlatformHostApi;

      setUp(() {
        mockPlatformHostApi = MockTestJavaObjectHostApi();
        TestJavaObjectHostApi.setup(mockPlatformHostApi);
      });

      tearDown(() {
        TestJavaObjectHostApi.setup(null);
      });

      test('JavaObject.dispose', () async {
        int? callbackIdentifier;
        final InstanceManager instanceManager = InstanceManager(
          onWeakReferenceRemoved: (int identifier) {
            callbackIdentifier = identifier;
          },
        );

        final JavaObject object = JavaObject.detached(
          instanceManager: instanceManager,
        );
        instanceManager.addHostCreatedInstance(object, 0);

        JavaObject.dispose(object);

        expect(callbackIdentifier, 0);
      });

      test('JavaObjectFlutterApi.dispose', () {
        final InstanceManager instanceManager = InstanceManager(
          onWeakReferenceRemoved: (_) {},
        );

        final JavaObject object = JavaObject.detached(
          instanceManager: instanceManager,
        );
        instanceManager.addHostCreatedInstance(object, 0);
        instanceManager.removeWeakReference(object);

        expect(instanceManager.containsIdentifier(0), isTrue);

        final JavaObjectFlutterApiImpl flutterApi = JavaObjectFlutterApiImpl(
          instanceManager: instanceManager,
        );
        flutterApi.dispose(0);

        expect(instanceManager.containsIdentifier(0), isFalse);
      });
    });

    group('WebView', () {
      late MockTestWebViewHostApi mockPlatformHostApi;

      late InstanceManager instanceManager;

      late WebView webView;
      late int webViewInstanceId;

      setUp(() {
        mockPlatformHostApi = MockTestWebViewHostApi();
        TestWebViewHostApi.setup(mockPlatformHostApi);

        instanceManager = InstanceManager(onWeakReferenceRemoved: (_) {});
        WebView.api = WebViewHostApiImpl(instanceManager: instanceManager);

        webView = WebView();
        webViewInstanceId = instanceManager.getIdentifier(webView)!;
      });

      test('create', () {
        verify(mockPlatformHostApi.create(webViewInstanceId, false));
      });

      test('setWebContentsDebuggingEnabled true', () {
        WebView.setWebContentsDebuggingEnabled(true);
        verify(mockPlatformHostApi.setWebContentsDebuggingEnabled(true));
      });

      test('setWebContentsDebuggingEnabled false', () {
        WebView.setWebContentsDebuggingEnabled(false);
        verify(mockPlatformHostApi.setWebContentsDebuggingEnabled(false));
      });

      test('loadData', () {
        webView.loadData(
          data: 'hello',
          mimeType: 'text/plain',
          encoding: 'base64',
        );
        verify(mockPlatformHostApi.loadData(
          webViewInstanceId,
          'hello',
          'text/plain',
          'base64',
        ));
      });

      test('loadData with null values', () {
        webView.loadData(data: 'hello');
        verify(mockPlatformHostApi.loadData(
          webViewInstanceId,
          'hello',
          null,
          null,
        ));
      });

      test('loadDataWithBaseUrl', () {
        webView.loadDataWithBaseUrl(
          baseUrl: 'https://base.url',
          data: 'hello',
          mimeType: 'text/plain',
          encoding: 'base64',
          historyUrl: 'https://history.url',
        );

        verify(mockPlatformHostApi.loadDataWithBaseUrl(
          webViewInstanceId,
          'https://base.url',
          'hello',
          'text/plain',
          'base64',
          'https://history.url',
        ));
      });

      test('loadDataWithBaseUrl with null values', () {
        webView.loadDataWithBaseUrl(data: 'hello');
        verify(mockPlatformHostApi.loadDataWithBaseUrl(
          webViewInstanceId,
          null,
          'hello',
          null,
          null,
          null,
        ));
      });

      test('loadUrl', () {
        webView.loadUrl('hello', <String, String>{'a': 'header'});
        verify(mockPlatformHostApi.loadUrl(
          webViewInstanceId,
          'hello',
          <String, String>{'a': 'header'},
        ));
      });

      test('canGoBack', () {
        when(mockPlatformHostApi.canGoBack(webViewInstanceId))
            .thenReturn(false);
        expect(webView.canGoBack(), completion(false));
      });

      test('canGoForward', () {
        when(mockPlatformHostApi.canGoForward(webViewInstanceId))
            .thenReturn(true);
        expect(webView.canGoForward(), completion(true));
      });

      test('goBack', () {
        webView.goBack();
        verify(mockPlatformHostApi.goBack(webViewInstanceId));
      });

      test('goForward', () {
        webView.goForward();
        verify(mockPlatformHostApi.goForward(webViewInstanceId));
      });

      test('reload', () {
        webView.reload();
        verify(mockPlatformHostApi.reload(webViewInstanceId));
      });

      test('clearCache', () {
        webView.clearCache(false);
        verify(mockPlatformHostApi.clearCache(webViewInstanceId, false));
      });

      test('evaluateJavascript', () {
        when(
          mockPlatformHostApi.evaluateJavascript(
              webViewInstanceId, 'runJavaScript'),
        ).thenAnswer((_) => Future<String>.value('returnValue'));
        expect(
          webView.evaluateJavascript('runJavaScript'),
          completion('returnValue'),
        );
      });

      test('getTitle', () {
        when(mockPlatformHostApi.getTitle(webViewInstanceId))
            .thenReturn('aTitle');
        expect(webView.getTitle(), completion('aTitle'));
      });

      test('scrollTo', () {
        webView.scrollTo(12, 13);
        verify(mockPlatformHostApi.scrollTo(webViewInstanceId, 12, 13));
      });

      test('scrollBy', () {
        webView.scrollBy(12, 14);
        verify(mockPlatformHostApi.scrollBy(webViewInstanceId, 12, 14));
      });

      test('getScrollX', () {
        when(mockPlatformHostApi.getScrollX(webViewInstanceId)).thenReturn(67);
        expect(webView.getScrollX(), completion(67));
      });

      test('getScrollY', () {
        when(mockPlatformHostApi.getScrollY(webViewInstanceId)).thenReturn(56);
        expect(webView.getScrollY(), completion(56));
      });

      test('getScrollPosition', () async {
        when(mockPlatformHostApi.getScrollPosition(webViewInstanceId))
            .thenReturn(WebViewPoint(x: 2, y: 16));
        await expectLater(
          webView.getScrollPosition(),
          completion(const Offset(2.0, 16.0)),
        );
      });

      test('setWebViewClient', () {
        TestWebViewClientHostApi.setup(MockTestWebViewClientHostApi());
        WebViewClient.api = WebViewClientHostApiImpl(
          instanceManager: instanceManager,
        );

        final WebViewClient mockWebViewClient = MockWebViewClient();
        when(mockWebViewClient.copy()).thenReturn(MockWebViewClient());
        instanceManager.addDartCreatedInstance(mockWebViewClient);
        webView.setWebViewClient(mockWebViewClient);

        final int webViewClientInstanceId =
            instanceManager.getIdentifier(mockWebViewClient)!;
        verify(mockPlatformHostApi.setWebViewClient(
          webViewInstanceId,
          webViewClientInstanceId,
        ));
      });

      test('addJavaScriptChannel', () {
        TestJavaScriptChannelHostApi.setup(MockTestJavaScriptChannelHostApi());
        JavaScriptChannel.api = JavaScriptChannelHostApiImpl(
          instanceManager: instanceManager,
        );

        final JavaScriptChannel mockJavaScriptChannel = MockJavaScriptChannel();
        when(mockJavaScriptChannel.copy()).thenReturn(MockJavaScriptChannel());
        when(mockJavaScriptChannel.channelName).thenReturn('aChannel');

        webView.addJavaScriptChannel(mockJavaScriptChannel);

        final int javaScriptChannelInstanceId =
            instanceManager.getIdentifier(mockJavaScriptChannel)!;
        verify(mockPlatformHostApi.addJavaScriptChannel(
          webViewInstanceId,
          javaScriptChannelInstanceId,
        ));
      });

      test('removeJavaScriptChannel', () {
        TestJavaScriptChannelHostApi.setup(MockTestJavaScriptChannelHostApi());
        JavaScriptChannel.api = JavaScriptChannelHostApiImpl(
          instanceManager: instanceManager,
        );

        final JavaScriptChannel mockJavaScriptChannel = MockJavaScriptChannel();
        when(mockJavaScriptChannel.copy()).thenReturn(MockJavaScriptChannel());
        when(mockJavaScriptChannel.channelName).thenReturn('aChannel');

        expect(
          webView.removeJavaScriptChannel(mockJavaScriptChannel),
          completes,
        );

        webView.addJavaScriptChannel(mockJavaScriptChannel);
        webView.removeJavaScriptChannel(mockJavaScriptChannel);

        final int javaScriptChannelInstanceId =
            instanceManager.getIdentifier(mockJavaScriptChannel)!;
        verify(mockPlatformHostApi.removeJavaScriptChannel(
          webViewInstanceId,
          javaScriptChannelInstanceId,
        ));
      });

      test('setDownloadListener', () {
        TestDownloadListenerHostApi.setup(MockTestDownloadListenerHostApi());
        DownloadListener.api = DownloadListenerHostApiImpl(
          instanceManager: instanceManager,
        );

        final DownloadListener mockDownloadListener = MockDownloadListener();
        when(mockDownloadListener.copy()).thenReturn(MockDownloadListener());
        instanceManager.addDartCreatedInstance(mockDownloadListener);
        webView.setDownloadListener(mockDownloadListener);

        final int downloadListenerInstanceId =
            instanceManager.getIdentifier(mockDownloadListener)!;
        verify(mockPlatformHostApi.setDownloadListener(
          webViewInstanceId,
          downloadListenerInstanceId,
        ));
      });

      test('setWebChromeClient', () {
        TestWebChromeClientHostApi.setup(MockTestWebChromeClientHostApi());
        WebChromeClient.api = WebChromeClientHostApiImpl(
          instanceManager: instanceManager,
        );

        final WebChromeClient mockWebChromeClient = MockWebChromeClient();
        when(mockWebChromeClient.copy()).thenReturn(MockWebChromeClient());
        instanceManager.addDartCreatedInstance(mockWebChromeClient);
        webView.setWebChromeClient(mockWebChromeClient);

        final int webChromeClientInstanceId =
            instanceManager.getIdentifier(mockWebChromeClient)!;
        verify(mockPlatformHostApi.setWebChromeClient(
          webViewInstanceId,
          webChromeClientInstanceId,
        ));
      });

      test('copy', () {
        expect(webView.copy(), isA<WebView>());
      });
    });

    group('WebSettings', () {
      late MockTestWebSettingsHostApi mockPlatformHostApi;

      late InstanceManager instanceManager;

      late WebSettings webSettings;
      late int webSettingsInstanceId;

      setUp(() {
        instanceManager = InstanceManager(onWeakReferenceRemoved: (_) {});

        TestWebViewHostApi.setup(MockTestWebViewHostApi());
        WebView.api = WebViewHostApiImpl(instanceManager: instanceManager);

        mockPlatformHostApi = MockTestWebSettingsHostApi();
        TestWebSettingsHostApi.setup(mockPlatformHostApi);

        WebSettings.api = WebSettingsHostApiImpl(
          instanceManager: instanceManager,
        );

        webSettings = WebSettings(WebView());
        webSettingsInstanceId = instanceManager.getIdentifier(webSettings)!;
      });

      test('create', () {
        verify(mockPlatformHostApi.create(webSettingsInstanceId, any));
      });

      test('setDomStorageEnabled', () {
        webSettings.setDomStorageEnabled(false);
        verify(mockPlatformHostApi.setDomStorageEnabled(
          webSettingsInstanceId,
          false,
        ));
      });

      test('setJavaScriptCanOpenWindowsAutomatically', () {
        webSettings.setJavaScriptCanOpenWindowsAutomatically(true);
        verify(mockPlatformHostApi.setJavaScriptCanOpenWindowsAutomatically(
          webSettingsInstanceId,
          true,
        ));
      });

      test('setSupportMultipleWindows', () {
        webSettings.setSupportMultipleWindows(false);
        verify(mockPlatformHostApi.setSupportMultipleWindows(
          webSettingsInstanceId,
          false,
        ));
      });

      test('setJavaScriptEnabled', () {
        webSettings.setJavaScriptEnabled(true);
        verify(mockPlatformHostApi.setJavaScriptEnabled(
          webSettingsInstanceId,
          true,
        ));
      });

      test('setUserAgentString', () {
        webSettings.setUserAgentString('hola');
        verify(mockPlatformHostApi.setUserAgentString(
          webSettingsInstanceId,
          'hola',
        ));
      });

      test('setMediaPlaybackRequiresUserGesture', () {
        webSettings.setMediaPlaybackRequiresUserGesture(false);
        verify(mockPlatformHostApi.setMediaPlaybackRequiresUserGesture(
          webSettingsInstanceId,
          false,
        ));
      });

      test('setSupportZoom', () {
        webSettings.setSupportZoom(true);
        verify(mockPlatformHostApi.setSupportZoom(
          webSettingsInstanceId,
          true,
        ));
      });

      test('setLoadWithOverviewMode', () {
        webSettings.setLoadWithOverviewMode(false);
        verify(mockPlatformHostApi.setLoadWithOverviewMode(
          webSettingsInstanceId,
          false,
        ));
      });

      test('setUseWideViewPort', () {
        webSettings.setUseWideViewPort(true);
        verify(mockPlatformHostApi.setUseWideViewPort(
          webSettingsInstanceId,
          true,
        ));
      });

      test('setDisplayZoomControls', () {
        webSettings.setDisplayZoomControls(false);
        verify(mockPlatformHostApi.setDisplayZoomControls(
          webSettingsInstanceId,
          false,
        ));
      });

      test('setBuiltInZoomControls', () {
        webSettings.setBuiltInZoomControls(true);
        verify(mockPlatformHostApi.setBuiltInZoomControls(
          webSettingsInstanceId,
          true,
        ));
      });

      test('setAllowFileAccess', () {
        webSettings.setAllowFileAccess(true);
        verify(mockPlatformHostApi.setAllowFileAccess(
          webSettingsInstanceId,
          true,
        ));
      });

      test('copy', () {
        expect(webSettings.copy(), isA<WebSettings>());
      });

      test('setTextZoom', () {
        webSettings.setTextZoom(100);
        verify(mockPlatformHostApi.setTextZoom(
          webSettingsInstanceId,
          100,
        ));
      });
    });

    group('JavaScriptChannel', () {
      late JavaScriptChannelFlutterApiImpl flutterApi;

      late InstanceManager instanceManager;

      late MockJavaScriptChannel mockJavaScriptChannel;
      late int mockJavaScriptChannelInstanceId;

      setUp(() {
        instanceManager = InstanceManager(onWeakReferenceRemoved: (_) {});
        flutterApi = JavaScriptChannelFlutterApiImpl(
          instanceManager: instanceManager,
        );

        mockJavaScriptChannel = MockJavaScriptChannel();
        when(mockJavaScriptChannel.copy()).thenReturn(MockJavaScriptChannel());

        mockJavaScriptChannelInstanceId =
            instanceManager.addDartCreatedInstance(mockJavaScriptChannel);
      });

      test('postMessage', () {
        late final String result;
        when(mockJavaScriptChannel.postMessage).thenReturn((String message) {
          result = message;
        });

        flutterApi.postMessage(
          mockJavaScriptChannelInstanceId,
          'Hello, World!',
        );

        expect(result, 'Hello, World!');
      });

      test('copy', () {
        expect(
          JavaScriptChannel.detached('channel', postMessage: (_) {}).copy(),
          isA<JavaScriptChannel>(),
        );
      });
    });

    group('WebViewClient', () {
      late WebViewClientFlutterApiImpl flutterApi;

      late InstanceManager instanceManager;

      late MockWebViewClient mockWebViewClient;
      late int mockWebViewClientInstanceId;

      late MockWebView mockWebView;
      late int mockWebViewInstanceId;

      setUp(() {
        instanceManager = InstanceManager(onWeakReferenceRemoved: (_) {});
        flutterApi = WebViewClientFlutterApiImpl(
          instanceManager: instanceManager,
        );

        mockWebViewClient = MockWebViewClient();
        when(mockWebViewClient.copy()).thenReturn(MockWebViewClient());
        mockWebViewClientInstanceId =
            instanceManager.addDartCreatedInstance(mockWebViewClient);

        mockWebView = MockWebView();
        when(mockWebView.copy()).thenReturn(MockWebView());
        mockWebViewInstanceId =
            instanceManager.addDartCreatedInstance(mockWebView);
      });

      test('onPageStarted', () {
        late final List<Object> result;
        when(mockWebViewClient.onPageStarted).thenReturn(
          (WebView webView, String url) {
            result = <Object>[webView, url];
          },
        );

        flutterApi.onPageStarted(
          mockWebViewClientInstanceId,
          mockWebViewInstanceId,
          'https://www.google.com',
        );

        expect(result, <Object>[mockWebView, 'https://www.google.com']);
      });

      test('onPageFinished', () {
        late final List<Object> result;
        when(mockWebViewClient.onPageFinished).thenReturn(
          (WebView webView, String url) {
            result = <Object>[webView, url];
          },
        );

        flutterApi.onPageFinished(
          mockWebViewClientInstanceId,
          mockWebViewInstanceId,
          'https://www.google.com',
        );

        expect(result, <Object>[mockWebView, 'https://www.google.com']);
      });

      test('onReceivedRequestError', () {
        late final List<Object> result;
        when(mockWebViewClient.onReceivedRequestError).thenReturn(
          (
            WebView webView,
            WebResourceRequest request,
            WebResourceError error,
          ) {
            result = <Object>[webView, request, error];
          },
        );

        flutterApi.onReceivedRequestError(
          mockWebViewClientInstanceId,
          mockWebViewInstanceId,
          WebResourceRequestData(
            url: 'https://www.google.com',
            isForMainFrame: true,
            hasGesture: true,
            method: 'POST',
            isRedirect: false,
            requestHeaders: <String?, String?>{},
          ),
          WebResourceErrorData(errorCode: 34, description: 'error description'),
        );

        expect(
          result,
          containsAllInOrder(<Object?>[mockWebView, isNotNull, isNotNull]),
        );
      });

      test('onReceivedError', () {
        late final List<Object> result;
        when(mockWebViewClient.onReceivedError).thenReturn(
          (
            WebView webView,
            int errorCode,
            String description,
            String failingUrl,
          ) {
            result = <Object>[webView, errorCode, description, failingUrl];
          },
        );

        flutterApi.onReceivedError(
          mockWebViewClientInstanceId,
          mockWebViewInstanceId,
          14,
          'desc',
          'https://www.google.com',
        );

        expect(
          result,
          containsAllInOrder(
            <Object?>[mockWebView, 14, 'desc', 'https://www.google.com'],
          ),
        );
      });

      test('requestLoading', () {
        late final List<Object> result;
        when(mockWebViewClient.requestLoading).thenReturn(
          (WebView webView, WebResourceRequest request) {
            result = <Object>[webView, request];
          },
        );

        flutterApi.requestLoading(
          mockWebViewClientInstanceId,
          mockWebViewInstanceId,
          WebResourceRequestData(
            url: 'https://www.google.com',
            isForMainFrame: true,
            hasGesture: true,
            method: 'POST',
            isRedirect: true,
            requestHeaders: <String?, String?>{},
          ),
        );

        expect(
          result,
          containsAllInOrder(<Object?>[mockWebView, isNotNull]),
        );
      });

      test('urlLoading', () {
        late final List<Object> result;
        when(mockWebViewClient.urlLoading).thenReturn(
          (WebView webView, String url) {
            result = <Object>[webView, url];
          },
        );

        flutterApi.urlLoading(mockWebViewClientInstanceId,
            mockWebViewInstanceId, 'https://www.google.com');

        expect(
          result,
          containsAllInOrder(<Object?>[mockWebView, 'https://www.google.com']),
        );
      });

      test('copy', () {
        expect(WebViewClient.detached().copy(), isA<WebViewClient>());
      });
    });

    group('DownloadListener', () {
      late DownloadListenerFlutterApiImpl flutterApi;

      late InstanceManager instanceManager;

      late MockDownloadListener mockDownloadListener;
      late int mockDownloadListenerInstanceId;

      setUp(() {
        instanceManager = InstanceManager(onWeakReferenceRemoved: (_) {});
        flutterApi = DownloadListenerFlutterApiImpl(
          instanceManager: instanceManager,
        );

        mockDownloadListener = MockDownloadListener();
        when(mockDownloadListener.copy()).thenReturn(MockDownloadListener());
        mockDownloadListenerInstanceId =
            instanceManager.addDartCreatedInstance(mockDownloadListener);
      });

      test('onDownloadStart', () {
        late final List<Object> result;
        when(mockDownloadListener.onDownloadStart).thenReturn(
          (
            String url,
            String userAgent,
            String contentDisposition,
            String mimetype,
            int contentLength,
          ) {
            result = <Object>[
              url,
              userAgent,
              contentDisposition,
              mimetype,
              contentLength,
            ];
          },
        );

        flutterApi.onDownloadStart(
          mockDownloadListenerInstanceId,
          'url',
          'userAgent',
          'contentDescription',
          'mimetype',
          45,
        );

        expect(
          result,
          containsAllInOrder(<Object?>[
            'url',
            'userAgent',
            'contentDescription',
            'mimetype',
            45,
          ]),
        );
      });

      test('copy', () {
        expect(
          DownloadListener.detached(
            onDownloadStart: (_, __, ____, _____, ______) {},
          ).copy(),
          isA<DownloadListener>(),
        );
      });
    });

    group('WebChromeClient', () {
      late WebChromeClientFlutterApiImpl flutterApi;

      late InstanceManager instanceManager;

      late MockWebChromeClient mockWebChromeClient;
      late int mockWebChromeClientInstanceId;

      late MockWebView mockWebView;
      late int mockWebViewInstanceId;

      setUp(() {
        instanceManager = InstanceManager(onWeakReferenceRemoved: (_) {});
        flutterApi = WebChromeClientFlutterApiImpl(
          instanceManager: instanceManager,
        );

        mockWebChromeClient = MockWebChromeClient();
        when(mockWebChromeClient.copy()).thenReturn(MockWebChromeClient());

        mockWebChromeClientInstanceId =
            instanceManager.addDartCreatedInstance(mockWebChromeClient);

        mockWebView = MockWebView();
        when(mockWebView.copy()).thenReturn(MockWebView());
        mockWebViewInstanceId =
            instanceManager.addDartCreatedInstance(mockWebView);
      });

      test('onProgressChanged', () {
        late final List<Object> result;
        when(mockWebChromeClient.onProgressChanged).thenReturn(
          (WebView webView, int progress) {
            result = <Object>[webView, progress];
          },
        );

        flutterApi.onProgressChanged(
          mockWebChromeClientInstanceId,
          mockWebViewInstanceId,
          76,
        );

        expect(result, containsAllInOrder(<Object?>[mockWebView, 76]));
      });

      test('onShowFileChooser', () async {
        late final List<Object> result;
        when(mockWebChromeClient.onShowFileChooser).thenReturn(
          (WebView webView, FileChooserParams params) {
            result = <Object>[webView, params];
            return Future<List<String>>.value(<String>['fileOne', 'fileTwo']);
          },
        );

        final FileChooserParams params = FileChooserParams.detached(
          isCaptureEnabled: false,
          acceptTypes: <String>[],
          filenameHint: 'filenameHint',
          mode: FileChooserMode.open,
        );

        instanceManager.addHostCreatedInstance(params, 3);

        await expectLater(
          flutterApi.onShowFileChooser(
            mockWebChromeClientInstanceId,
            mockWebViewInstanceId,
            3,
          ),
          completion(<String>['fileOne', 'fileTwo']),
        );
        expect(result[0], mockWebView);
        expect(result[1], params);
      });

      test('setSynchronousReturnValueForOnShowFileChooser', () {
        final MockTestWebChromeClientHostApi mockHostApi =
            MockTestWebChromeClientHostApi();
        TestWebChromeClientHostApi.setup(mockHostApi);

        WebChromeClient.api =
            WebChromeClientHostApiImpl(instanceManager: instanceManager);

        final WebChromeClient webChromeClient = WebChromeClient.detached();
        instanceManager.addHostCreatedInstance(webChromeClient, 2);

        webChromeClient.setSynchronousReturnValueForOnShowFileChooser(false);

        verify(
          mockHostApi.setSynchronousReturnValueForOnShowFileChooser(2, false),
        );
      });

      test(
          'setSynchronousReturnValueForOnShowFileChooser throws StateError when onShowFileChooser is null',
          () {
        final MockTestWebChromeClientHostApi mockHostApi =
            MockTestWebChromeClientHostApi();
        TestWebChromeClientHostApi.setup(mockHostApi);

        WebChromeClient.api =
            WebChromeClientHostApiImpl(instanceManager: instanceManager);

        final WebChromeClient clientWithNullCallback =
            WebChromeClient.detached();
        instanceManager.addHostCreatedInstance(clientWithNullCallback, 2);

        expect(
          () => clientWithNullCallback
              .setSynchronousReturnValueForOnShowFileChooser(true),
          throwsStateError,
        );

        final WebChromeClient clientWithNonnullCallback =
            WebChromeClient.detached(
          onShowFileChooser: (_, __) async => <String>[],
        );
        instanceManager.addHostCreatedInstance(clientWithNonnullCallback, 3);

        clientWithNonnullCallback
            .setSynchronousReturnValueForOnShowFileChooser(true);

        verify(
          mockHostApi.setSynchronousReturnValueForOnShowFileChooser(3, true),
        );
      });

      test('copy', () {
        expect(WebChromeClient.detached().copy(), isA<WebChromeClient>());
      });
    });

    group('FileChooserParams', () {
      test('FlutterApi create', () {
        final InstanceManager instanceManager = InstanceManager(
          onWeakReferenceRemoved: (_) {},
        );

        final FileChooserParamsFlutterApiImpl flutterApi =
            FileChooserParamsFlutterApiImpl(
          instanceManager: instanceManager,
        );

        flutterApi.create(
          0,
          false,
          const <String>['my', 'list'],
          FileChooserModeEnumData(value: FileChooserMode.openMultiple),
          'filenameHint',
        );

        final FileChooserParams instance = instanceManager
            .getInstanceWithWeakReference(0)! as FileChooserParams;
        expect(instance.isCaptureEnabled, false);
        expect(instance.acceptTypes, const <String>['my', 'list']);
        expect(instance.mode, FileChooserMode.openMultiple);
        expect(instance.filenameHint, 'filenameHint');
      });
    });
  });

  group('CookieManager', () {
    test('setCookie calls setCookie on CookieManagerHostApi', () {
      CookieManager.api = MockCookieManagerHostApi();
      CookieManager.instance.setCookie('foo', 'bar');
      verify(CookieManager.api.setCookie('foo', 'bar'));
    });

    test('clearCookies calls clearCookies on CookieManagerHostApi', () {
      CookieManager.api = MockCookieManagerHostApi();
      when(CookieManager.api.clearCookies())
          .thenAnswer((_) => Future<bool>.value(true));
      CookieManager.instance.clearCookies();
      verify(CookieManager.api.clearCookies());
    });
  });

  group('WebStorage', () {
    late MockTestWebStorageHostApi mockPlatformHostApi;

    late WebStorage webStorage;
    late int webStorageInstanceId;

    setUp(() {
      mockPlatformHostApi = MockTestWebStorageHostApi();
      TestWebStorageHostApi.setup(mockPlatformHostApi);

      webStorage = WebStorage();
      webStorageInstanceId =
          WebStorage.api.instanceManager.getIdentifier(webStorage)!;
    });

    test('create', () {
      verify(mockPlatformHostApi.create(webStorageInstanceId));
    });

    test('deleteAllData', () {
      webStorage.deleteAllData();
      verify(mockPlatformHostApi.deleteAllData(webStorageInstanceId));
    });

    test('copy', () {
      expect(WebStorage.detached().copy(), isA<WebStorage>());
    });
  });
}