iosWebViewFix/example/integration_test/in_app_webview/load_url.dart

import 'dart:async';
import 'dart:convert';

import 'package:flutter/foundation.dart';
import 'package:flutter/widgets.dart';
import 'package:flutter_inappwebview/flutter_inappwebview.dart';
import 'package:flutter_test/flutter_test.dart';

import '../constants.dart';

void loadUrl() {
  final shouldSkip1 = kIsWeb ? false :
      ![
        TargetPlatform.android,
        TargetPlatform.iOS,
        TargetPlatform.macOS,
      ].contains(defaultTargetPlatform);

  var initialUrl = !kIsWeb ? TEST_URL_1 : TEST_WEB_PLATFORM_URL_1;

  testWidgets('loadUrl', (WidgetTester tester) async {
    final Completer controllerCompleter = Completer<InAppWebViewController>();
    final Completer<String> firstUrlLoad = Completer<String>();
    final Completer<String> loadedUrl = Completer<String>();

    await tester.pumpWidget(
      Directionality(
        textDirection: TextDirection.ltr,
        child: InAppWebView(
          key: GlobalKey(),
          initialUrlRequest:
          URLRequest(url: initialUrl),
          onWebViewCreated: (controller) {
            controllerCompleter.complete(controller);
          },
          onLoadStop: (controller, url) {
            if (url.toString() == initialUrl.toString() && !firstUrlLoad.isCompleted) {
              firstUrlLoad.complete(url.toString());
            } else if (url.toString() == TEST_CROSS_PLATFORM_URL_1.toString() && !loadedUrl.isCompleted) {
              loadedUrl.complete(url.toString());
            }
          },
        ),
      ),
    );
    final InAppWebViewController controller =
    await controllerCompleter.future;
    expect(await firstUrlLoad.future, initialUrl.toString());

    await controller.loadUrl(
        urlRequest: URLRequest(url: TEST_CROSS_PLATFORM_URL_1));
    expect(await loadedUrl.future, TEST_CROSS_PLATFORM_URL_1.toString());
  }, skip: shouldSkip1);

  final shouldSkip2 = kIsWeb ? true :
  ![
    TargetPlatform.iOS,
    TargetPlatform.macOS,
  ].contains(defaultTargetPlatform);

  testWidgets('loadSimulatedRequest', (WidgetTester tester) async {
    final Completer controllerCompleter = Completer<InAppWebViewController>();
    final Completer<String> firstUrlLoad = Completer<String>();
    final Completer<String> loadedUrl = Completer<String>();

    await tester.pumpWidget(
      Directionality(
        textDirection: TextDirection.ltr,
        child: InAppWebView(
          key: GlobalKey(),
          initialUrlRequest:
          URLRequest(url: initialUrl),
          onWebViewCreated: (controller) {
            controllerCompleter.complete(controller);
          },
          onLoadStop: (controller, url) {
            if (url.toString() == initialUrl.toString() && !firstUrlLoad.isCompleted) {
              firstUrlLoad.complete(url.toString());
            } else if (url.toString() == TEST_CROSS_PLATFORM_URL_1.toString() && !loadedUrl.isCompleted) {
              loadedUrl.complete(url.toString());
            }
          },
        ),
      ),
    );
    final InAppWebViewController controller =
    await controllerCompleter.future;
    expect(await firstUrlLoad.future, initialUrl.toString());

    final htmlCode = "<h1>Hello</h1>";
    await controller.loadSimulatedRequest(
        urlRequest: URLRequest(url: TEST_CROSS_PLATFORM_URL_1),
        data: Uint8List.fromList(utf8.encode(htmlCode))
    );
    expect(await loadedUrl.future, TEST_CROSS_PLATFORM_URL_1.toString());
    expect((await controller.evaluateJavascript(source: "document.body.innerHTML")).toString().trim(), htmlCode);
  }, skip: shouldSkip2);
}