/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* Common functionality for testing the WebView's Java Bridge.
*/
package com.android.webviewtests;
import android.test.ActivityInstrumentationTestCase2;
import android.util.Log;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import junit.framework.Assert;
public class JavaBridgeTestBase extends ActivityInstrumentationTestCase2<WebViewStubActivity> {
protected class TestWebViewClient extends WebViewClient {
private boolean mIsPageFinished;
@Override
public synchronized void onPageFinished(WebView webView, String url) {
mIsPageFinished = true;
notify();
}
public synchronized void waitForOnPageFinished() throws RuntimeException {
while (!mIsPageFinished) {
try {
wait(5000);
} catch (Exception e) {
continue;
}
if (!mIsPageFinished) {
throw new RuntimeException("Timed out waiting for onPageFinished()");
}
}
mIsPageFinished = false;
}
}
protected class Controller {
private boolean mIsResultReady;
protected synchronized void notifyResultIsReady() {
mIsResultReady = true;
notify();
}
protected synchronized void waitForResult() {
while (!mIsResultReady) {
try {
wait(5000);
} catch (Exception e) {
continue;
}
if (!mIsResultReady) {
Assert.fail("Wait timed out");
}
}
mIsResultReady = false;
}
}
protected TestWebViewClient mWebViewClient;
public JavaBridgeTestBase() {
super(WebViewStubActivity.class);
}
// Sets up the WebView and injects the supplied object. Intended to be called from setUp().
protected void setUpWebView(final Object object, final String name) throws Exception {
mWebViewClient = new TestWebViewClient();
// This starts the activity, so must be called on the test thread.
final WebViewStubActivity activity = getActivity();
// On the UI thread, load an empty page and wait for it to finish
// loading so that the Java object is injected.
try {
runTestOnUiThread(new Runnable() {
@Override
public void run() {
WebView webView = activity.getWebView();
webView.addJavascriptInterface(object, name);
webView.getSettings().setJavaScriptEnabled(true);
webView.setWebViewClient(mWebViewClient);
webView.loadData("<!DOCTYPE html><title></title>", "text/html", null);
}
});
mWebViewClient.waitForOnPageFinished();
} catch (Throwable e) {
throw new RuntimeException("Failed to set up WebView: " + Log.getStackTraceString(e));
}
}
protected void executeJavaScript(final String script) throws Throwable {
runTestOnUiThread(new Runnable() {
@Override
public void run() {
// When a JavaScript URL is executed, if the value of the last
// expression evaluated is not 'undefined', this value is
// converted to a string and used as the new document for the
// frame. We don't want this behaviour, so wrap the script in
// an anonymous function.
getWebView().loadUrl("javascript:(function() { " + script + " })()");
}
});
}
protected WebView getWebView() {
return getActivity().getWebView();
}
}
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