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/*
* Copyright 2009 Google Inc.
*
* 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.
*/
package com.google.gwt.junit;
import com.google.gwt.core.ext.TreeLogger;
import com.google.gwt.dev.shell.HostedModePluginObject;
import com.gargoylesoftware.htmlunit.AlertHandler;
import com.gargoylesoftware.htmlunit.BrowserVersion;
import com.gargoylesoftware.htmlunit.FailingHttpStatusCodeException;
import com.gargoylesoftware.htmlunit.IncorrectnessListener;
import com.gargoylesoftware.htmlunit.OnbeforeunloadHandler;
import com.gargoylesoftware.htmlunit.Page;
import com.gargoylesoftware.htmlunit.WebClient;
import com.gargoylesoftware.htmlunit.WebWindow;
import com.gargoylesoftware.htmlunit.html.HtmlPage;
import com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine;
import com.gargoylesoftware.htmlunit.javascript.host.Window;
import net.sourceforge.htmlunit.corejs.javascript.ScriptableObject;
import org.w3c.css.sac.CSSParseException;
import org.w3c.css.sac.ErrorHandler;
import java.io.IOException;
import java.net.MalformedURLException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
/**
* Launches a web-mode test via HTMLUnit.
*/
public class RunStyleHtmlUnit extends RunStyle {
/**
* Runs HTMLUnit in a separate thread.
*/
protected static class HtmlUnitThread extends Thread implements AlertHandler,
IncorrectnessListener, OnbeforeunloadHandler {
private final BrowserVersion browser;
private final boolean developmentMode;
private final TreeLogger treeLogger;
private final String url;
private Object waitForUnload = new Object();
public HtmlUnitThread(BrowserVersion browser, String url,
TreeLogger treeLogger, boolean developmentMode) {
this.browser = browser;
this.url = url;
this.treeLogger = treeLogger;
this.setName("htmlUnit client thread");
this.developmentMode = developmentMode;
}
public void handleAlert(Page page, String message) {
treeLogger.log(TreeLogger.ERROR, "Alert: " + message);
}
public boolean handleEvent(Page page, String returnValue) {
synchronized (waitForUnload) {
waitForUnload.notifyAll();
}
return true;
}
public void notify(String message, Object origin) {
if ("Obsolete content type encountered: 'text/javascript'.".equals(message)) {
// silently eat warning about text/javascript MIME type
return;
}
treeLogger.log(TreeLogger.WARN, message);
}
@Override
public void run() {
WebClient webClient = new WebClient(browser);
webClient.setAlertHandler(this);
// Adding a handler that ignores errors to work-around
// https://sourceforge.net/tracker/?func=detail&aid=3090806&group_id=47038&atid=448266
webClient.setCssErrorHandler(new ErrorHandler() {
public void error(CSSParseException exception) {
// ignore
}
public void fatalError(CSSParseException exception) {
treeLogger.log(TreeLogger.WARN,
"CSS fatal error: " + exception.getURI() + " ["
+ exception.getLineNumber() + ":"
+ exception.getColumnNumber() + "] " + exception.getMessage());
}
public void warning(CSSParseException exception) {
// ignore
}
});
webClient.setIncorrectnessListener(this);
webClient.setThrowExceptionOnFailingStatusCode(false);
webClient.setThrowExceptionOnScriptError(true);
webClient.setOnbeforeunloadHandler(this);
setupWebClient(webClient);
try {
Page page = webClient.getPage(url);
webClient.waitForBackgroundJavaScriptStartingBefore(2000);
treeLogger.log(TreeLogger.SPAM, "getPage returned "
+ ((HtmlPage) page).asXml());
// TODO(amitmanjhi): call webClient.closeAllWindows()
} catch (FailingHttpStatusCodeException e) {
treeLogger.log(TreeLogger.ERROR, "HTTP request failed", e);
return;
} catch (MalformedURLException e) {
treeLogger.log(TreeLogger.ERROR, "Bad URL", e);
return;
} catch (IOException e) {
treeLogger.log(TreeLogger.ERROR, "I/O error on HTTP request", e);
return;
}
}
protected void setupWebClient(WebClient webClient) {
if (developmentMode) {
JavaScriptEngine hostedEngine = new HostedJavaScriptEngine(webClient,
treeLogger);
webClient.setJavaScriptEngine(hostedEngine);
}
}
}
/**
* JavaScriptEngine subclass that provides a hook of initializing the
* __gwt_HostedModePlugin property on any new window, so it acts just like
* Firefox with the XPCOM plugin installed.
*/
private static class HostedJavaScriptEngine extends JavaScriptEngine {
private static final long serialVersionUID = 3594816610842448691L;
private final TreeLogger logger;
public HostedJavaScriptEngine(WebClient webClient, TreeLogger logger) {
super(webClient);
this.logger = logger;
}
@Override
public void initialize(WebWindow webWindow) {
// Hook in the hosted-mode plugin after initializing the JS engine.
super.initialize(webWindow);
Window window = (Window) webWindow.getScriptObject();
window.defineProperty("__gwt_HostedModePlugin",
new HostedModePluginObject(this, logger), ScriptableObject.READONLY);
}
}
private static final Map BROWSER_MAP = createBrowserMap();
/*
* as long as this number is greater than 1, GWTTestCaseTest::testRetry will
* pass
*/
private static final int DEFAULT_TRIES = 1;
/**
* Returns the list of browsers Htmlunit emulates as a comma separated string.
*/
static String getBrowserList() {
StringBuffer sb = new StringBuffer();
for (String str : BROWSER_MAP.keySet()) {
sb.append(str);
sb.append(",");
}
if (sb.length() > 1) {
return sb.substring(0, sb.length() - 1);
}
return sb.toString();
}
private static Map createBrowserMap() {
Map browserMap = new HashMap();
for (BrowserVersion browser : new BrowserVersion[] {
BrowserVersion.FIREFOX_3, BrowserVersion.INTERNET_EXPLORER_6,
BrowserVersion.INTERNET_EXPLORER_7}) {
browserMap.put(browser.getNickname(), browser);
}
return Collections.unmodifiableMap(browserMap);
}
private Set browsers = new HashSet();
private boolean developmentMode;
private final List threads = new ArrayList();
/**
* Create a RunStyle instance with the passed-in browser targets.
*/
public RunStyleHtmlUnit(JUnitShell shell) {
super(shell);
}
@Override
public int initialize(String args) {
if (args == null || args.length() == 0) {
// If no browsers specified, default to Firefox 3.
args = "FF3";
}
Set browserSet = new HashSet();
for (String browserName : args.split(",")) {
BrowserVersion browser = BROWSER_MAP.get(browserName);
if (browser == null) {
getLogger().log(
TreeLogger.ERROR,
"RunStyleHtmlUnit: Unknown browser " + "name " + browserName
+ ", expected browser name: one of " + BROWSER_MAP.keySet());
return -1;
}
browserSet.add(browser);
}
browsers = Collections.unmodifiableSet(browserSet);
setTries(DEFAULT_TRIES); // set to the default value for this RunStyle
return browsers.size();
}
@Override
public void launchModule(String moduleName) {
for (BrowserVersion browser : browsers) {
String url = shell.getModuleUrl(moduleName);
HtmlUnitThread hut = createHtmlUnitThread(browser, url);
shell.getTopLogger().log(TreeLogger.INFO,
"Starting " + url + " on browser " + browser.getNickname());
/*
* TODO (amitmanjhi): Is it worth pausing here and waiting for the main
* test thread to get to an "okay" state.
*/
hut.start();
threads.add(hut);
}
}
public int numBrowsers() {
return browsers.size();
}
@Override
public boolean setupMode(TreeLogger logger, boolean developmentMode) {
this.developmentMode = developmentMode;
return true;
}
protected HtmlUnitThread createHtmlUnitThread(BrowserVersion browser,
String url) {
return new HtmlUnitThread(browser, url, shell.getTopLogger().branch(
TreeLogger.SPAM, "logging for HtmlUnit thread"), developmentMode);
}
}
