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FlutterWebViewTest.java
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FlutterWebViewTest.java
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// 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.
package io.flutter.plugins.webviewflutter;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.anyBoolean;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.ArgumentMatchers.isNull;
import static org.mockito.Mockito.doAnswer;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.mockStatic;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import android.content.Context;
import android.webkit.DownloadListener;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import io.flutter.plugin.common.MethodCall;
import io.flutter.plugin.common.MethodChannel;
import java.util.HashMap;
import java.util.Map;
import org.junit.Before;
import org.junit.Test;
import org.mockito.MockedStatic;
public class FlutterWebViewTest {
private WebChromeClient mockWebChromeClient;
private DownloadListener mockDownloadListener;
private WebViewBuilder mockWebViewBuilder;
private WebView mockWebView;
private MethodChannel.Result mockResult;
private Context mockContext;
private MethodChannel mockMethodChannel;
@Before
public void before() {
mockWebChromeClient = mock(WebChromeClient.class);
mockWebViewBuilder = mock(WebViewBuilder.class);
mockWebView = mock(WebView.class);
mockDownloadListener = mock(DownloadListener.class);
mockResult = mock(MethodChannel.Result.class);
mockContext = mock(Context.class);
mockMethodChannel = mock(MethodChannel.class);
when(mockWebViewBuilder.setDomStorageEnabled(anyBoolean())).thenReturn(mockWebViewBuilder);
when(mockWebViewBuilder.setJavaScriptCanOpenWindowsAutomatically(anyBoolean()))
.thenReturn(mockWebViewBuilder);
when(mockWebViewBuilder.setSupportMultipleWindows(anyBoolean())).thenReturn(mockWebViewBuilder);
when(mockWebViewBuilder.setUsesHybridComposition(anyBoolean())).thenReturn(mockWebViewBuilder);
when(mockWebViewBuilder.setWebChromeClient(any(WebChromeClient.class)))
.thenReturn(mockWebViewBuilder);
when(mockWebViewBuilder.setDownloadListener(any(DownloadListener.class)))
.thenReturn(mockWebViewBuilder);
when(mockWebViewBuilder.build()).thenReturn(mockWebView);
}
@Test
public void createWebView_shouldCreateWebViewWithDefaultConfiguration() {
FlutterWebView.createWebView(
mockWebViewBuilder, createParameterMap(false), mockWebChromeClient, mockDownloadListener);
verify(mockWebViewBuilder, times(1)).setDomStorageEnabled(true);
verify(mockWebViewBuilder, times(1)).setJavaScriptCanOpenWindowsAutomatically(true);
verify(mockWebViewBuilder, times(1)).setSupportMultipleWindows(true);
verify(mockWebViewBuilder, times(1)).setUsesHybridComposition(false);
verify(mockWebViewBuilder, times(1)).setWebChromeClient(mockWebChromeClient);
}
@Test(expected = UnsupportedOperationException.class)
public void evaluateJavaScript_shouldThrowForNullString() {
try (MockedStatic<FlutterWebView> mockedFlutterWebView = mockStatic(FlutterWebView.class)) {
// Setup
mockedFlutterWebView
.when(
new MockedStatic.Verification() {
@Override
public void apply() throws Throwable {
FlutterWebView.createWebView(
(WebViewBuilder) any(),
(Map<String, Object>) any(),
(WebChromeClient) any(),
(DownloadListener) any());
}
})
.thenReturn(mockWebView);
FlutterWebView flutterWebView =
new FlutterWebView(mockContext, mockMethodChannel, new HashMap<String, Object>(), null);
// Run
flutterWebView.onMethodCall(new MethodCall("runJavaScript", null), mockResult);
}
}
@Test
public void evaluateJavaScript_shouldReturnValueOnSuccessForReturnValue() {
try (MockedStatic<FlutterWebView> mockedFlutterWebView = mockStatic(FlutterWebView.class)) {
// Setup
mockedFlutterWebView
.when(
() ->
FlutterWebView.createWebView(
(WebViewBuilder) any(),
(Map<String, Object>) any(),
(WebChromeClient) any(),
(DownloadListener) any()))
.thenReturn(mockWebView);
doAnswer(
invocation -> {
android.webkit.ValueCallback<String> callback = invocation.getArgument(1);
callback.onReceiveValue("Test JavaScript Result");
return null;
})
.when(mockWebView)
.evaluateJavascript(eq("Test JavaScript String"), any());
FlutterWebView flutterWebView =
new FlutterWebView(mockContext, mockMethodChannel, new HashMap<String, Object>(), null);
// Run
flutterWebView.onMethodCall(
new MethodCall("runJavaScriptForResult", "Test JavaScript String"), mockResult);
// Verify
verify(mockResult, times(1)).success("Test JavaScript Result");
}
}
@Test
public void evaluateJavaScript_shouldReturnNilOnSuccessForNoReturnValue() {
try (MockedStatic<FlutterWebView> mockedFlutterWebView = mockStatic(FlutterWebView.class)) {
// Setup
mockedFlutterWebView
.when(
() ->
FlutterWebView.createWebView(
(WebViewBuilder) any(),
(Map<String, Object>) any(),
(WebChromeClient) any(),
(DownloadListener) any()))
.thenReturn(mockWebView);
doAnswer(
invocation -> {
android.webkit.ValueCallback<String> callback = invocation.getArgument(1);
callback.onReceiveValue("Test JavaScript Result");
return null;
})
.when(mockWebView)
.evaluateJavascript(eq("Test JavaScript String"), any());
FlutterWebView flutterWebView =
new FlutterWebView(mockContext, mockMethodChannel, new HashMap<String, Object>(), null);
// Run
flutterWebView.onMethodCall(
new MethodCall("runJavaScript", "Test JavaScript String"), mockResult);
// Verify
verify(mockResult, times(1)).success(isNull());
}
}
private Map<String, Object> createParameterMap(boolean usesHybridComposition) {
Map<String, Object> params = new HashMap<>();
params.put("usesHybridComposition", usesHybridComposition);
return params;
}
}