ko4j/src/test/java/org/netbeans/html/ko4j/DoubleViewTest.java - netbeans-html4j - Git at Google

 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
  * regarding copyright ownership.  The ASF licenses this file
  * to you 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 org.netbeans.html.ko4j;

 import java.awt.FlowLayout;
 import java.lang.ref.Reference;
 import java.lang.ref.WeakReference;
 import java.net.URL;
 import java.util.concurrent.CountDownLatch;
 import javafx.application.Platform;
 import javafx.embed.swing.JFXPanel;
 import javafx.scene.Parent;
 import javafx.scene.Scene;
 import javafx.scene.control.Label;
 import javafx.scene.layout.BorderPane;
 import javafx.scene.web.WebView;
 import javax.swing.JFrame;
 import net.java.html.boot.fx.FXBrowsers;
 import net.java.html.json.Function;
 import net.java.html.json.Model;
 import net.java.html.json.Property;
 import org.netbeans.html.boot.spi.Fn;
 import org.netbeans.junit.NbTestCase;
 import static org.testng.Assert.assertEquals;
 import static org.testng.Assert.assertNotNull;
 import org.testng.annotations.AfterMethod;
 import org.testng.annotations.BeforeMethod;
 import org.testng.annotations.Test;

 @Model(className = "DoubleView", targetId = "", properties = {
     @Property(name = "message", type = String.class)
 })
 public class DoubleViewTest {
     private static String set;
     static {
         DumpStack.initialize();
     }

     @Function
     static void change(DoubleView model) {
         log("changing ").append(model).append(" to ").append(set);
         assertNotNull(set);
         model.setMessage(set);
         log("changing done");
         set = null;
     }

     DoubleView doubleView;
     private WebView view1;
     private WebView view2;

     private static final StringBuffer LOG = new StringBuffer();
     private JFrame frame;
     private Fn.Presenter presenter1;
     private Fn.Presenter presenter2;

     @BeforeMethod
     public void initializeViews() throws Exception {
         LOG.setLength(0);

         final JFXPanel panel = new JFXPanel();
         final JFXPanel p2 = new JFXPanel();

         final CountDownLatch initViews = new CountDownLatch(1);
         Platform.runLater(() -> {
             displayFrame(panel, p2);
             initViews.countDown();
         });
         initViews.await();

         doubleView = new DoubleView();
         doubleView.setMessage("Initialized");

         final URL page = DoubleViewTest.class.getResource("double.html");
         assertNotNull(page, "double.html found");


         final CountDownLatch view1Init = new CountDownLatch(1);
         final CountDownLatch view2Init = new CountDownLatch(1);
         Platform.runLater(() -> {
             FXBrowsers.load(view1, page, () -> {
                 presenter1 = Fn.activePresenter();
                 doubleView.applyBindings();
                 log("applyBindings view One");
                 view1Init.countDown();
             });

             FXBrowsers.load(view2, page, () -> {
                 presenter2 = Fn.activePresenter();
                 doubleView.applyBindings();
                 log("applyBindings view Two");
                 view2Init.countDown();
             });
         });
         view1Init.await();
         view2Init.await();
         log("initializeViews - done");
         assertNotNull(presenter1, "presenter for view1 found");
         assertNotNull(presenter2, "presenter for view2 found");
     }

     private void displayFrame(JFXPanel panel, JFXPanel p2) {
         view1 = displayWebView(panel);
         view2 = displayWebView(p2);

         frame = new JFrame();
         frame.getContentPane().setLayout(new FlowLayout());
         frame.getContentPane().add(panel);
         frame.getContentPane().add(p2);
         frame.pack();
         frame.setVisible(true);
     }

     private WebView displayWebView(JFXPanel panel) {
         BorderPane pane = new BorderPane();
         Scene scene = new Scene(pane, 800, 600);
         WebView webView = new WebView();
         pane.setCenter(webView);
         panel.setScene(scene);
         return webView;
     }

     @Test
     public void synchronizationOfViews() throws Throwable {
         final CountDownLatch cdl = new CountDownLatch(1);
         final Throwable[] arr = new Throwable[1];
         Platform.runLater(() -> {
             try {
                 assertMessages("In view one", view1, "Initialized");
                 assertMessages("In view two", view2, "Initialized");
                 set = "Change1";
                 clickButton("View one", view1);
                 assertMessages("In view one", view1, "Change1");
                 assertMessages("In view two", view2, "Change1");
                 set = "Change2";
                 clickButton("View two", view2);
                 assertMessages("In view one", view1, "Change2");
                 assertMessages("In view two", view2, "Change2");
             } catch (Throwable t) {
                 arr[0] = t;
             } finally {
                 cdl.countDown();
             }
         });
         cdl.await();
         if (arr[0] != null) {
             LOG.insert(0, arr[0].getMessage() + "\n\n");
             throw new AssertionError(LOG.toString(), arr[0]);
         }
     }

     @AfterMethod
     public void waitABit() throws Exception {
         final CountDownLatch cdl = new CountDownLatch(1);
         Platform.runLater(() -> {
             Parent p1 = view1.getParent();
             ((BorderPane)p1).setCenter(new Label("Searching for GC root"));
             Parent p2 = view2.getParent();
             ((BorderPane)p2).setCenter(new Label("Searching for GC root"));
             cdl.countDown();
         });
         cdl.await();

         assertGCPresenters();
         assertGCViews();

         Platform.runLater(() -> {
             Platform.setImplicitExit(false);
             frame.dispose();
         });
     }

     private void assertGCPresenters() {
         Reference<?> r1 = new WeakReference<>(presenter1);
         Reference<?> r2 = new WeakReference<>(presenter2);

         presenter1 = null;
         presenter2 = null;

         NbTestCase.assertGC("Clearing reference 1", r1);
         NbTestCase.assertGC("Clearing reference 2", r2);
     }

     private void assertGCViews() {
         try {
             Class.forName("java.lang.Module");
             // skip the test on JDK11 and more
             return;
         } catch (ClassNotFoundException ex) {
             // OK on JDK8
         }

         Reference<?> r1 = new WeakReference<>(view1);
         Reference<?> r2 = new WeakReference<>(view2);

         view1 = null;
         view2 = null;

         NbTestCase.assertGC("Clearing reference 1", r1);
         NbTestCase.assertGC("Clearing reference 2", r2);
     }

     private void assertMessages(String msg, WebView v, String expected) {
         Object func = v.getEngine().executeScript("document.getElementById('function').innerHTML");
         final String functionMsg = msg + " 'function' check";
         log(functionMsg).append(" got: ").append(func);
         assertEquals(func, expected, functionMsg);

         Object prop = v.getEngine().executeScript("document.getElementById('property').innerHTML");
         final String propertyMsg = msg + " 'property' check";
         log(propertyMsg).append(" got: ").append(prop);
         assertEquals(prop, expected, propertyMsg);
     }

     private void clickButton(String id, WebView v) {
         log("clickButton in ").append(id);
         v.getEngine().executeScript("document.getElementById('change').click()");
         log("clickButton finished in ").append(id);
     }

     private static StringBuffer log(String msg) {
         LOG.append("\n[").append(Thread.currentThread().getName()).append("] ").append(msg);
         return LOG;
     }
 }
	/**
	* Licensed to the Apache Software Foundation (ASF) under one
	* or more contributor license agreements. See the NOTICE file
	* distributed with this work for additional information
	* regarding copyright ownership. The ASF licenses this file
	* to you 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 org.netbeans.html.ko4j;

	import java.awt.FlowLayout;
	import java.lang.ref.Reference;
	import java.lang.ref.WeakReference;
	import java.net.URL;
	import java.util.concurrent.CountDownLatch;
	import javafx.application.Platform;
	import javafx.embed.swing.JFXPanel;
	import javafx.scene.Parent;
	import javafx.scene.Scene;
	import javafx.scene.control.Label;
	import javafx.scene.layout.BorderPane;
	import javafx.scene.web.WebView;
	import javax.swing.JFrame;
	import net.java.html.boot.fx.FXBrowsers;
	import net.java.html.json.Function;
	import net.java.html.json.Model;
	import net.java.html.json.Property;
	import org.netbeans.html.boot.spi.Fn;
	import org.netbeans.junit.NbTestCase;
	import static org.testng.Assert.assertEquals;
	import static org.testng.Assert.assertNotNull;
	import org.testng.annotations.AfterMethod;
	import org.testng.annotations.BeforeMethod;
	import org.testng.annotations.Test;

	@Model(className = "DoubleView", targetId = "", properties = {
	@Property(name = "message", type = String.class)
	})
	public class DoubleViewTest {
	private static String set;
	static {
	DumpStack.initialize();
	}

	@Function
	static void change(DoubleView model) {
	log("changing ").append(model).append(" to ").append(set);
	assertNotNull(set);
	model.setMessage(set);
	log("changing done");
	set = null;
	}

	DoubleView doubleView;
	private WebView view1;
	private WebView view2;

	private static final StringBuffer LOG = new StringBuffer();
	private JFrame frame;
	private Fn.Presenter presenter1;
	private Fn.Presenter presenter2;

	@BeforeMethod
	public void initializeViews() throws Exception {
	LOG.setLength(0);

	final JFXPanel panel = new JFXPanel();
	final JFXPanel p2 = new JFXPanel();

	final CountDownLatch initViews = new CountDownLatch(1);
	Platform.runLater(() -> {
	displayFrame(panel, p2);
	initViews.countDown();
	});
	initViews.await();

	doubleView = new DoubleView();
	doubleView.setMessage("Initialized");

	final URL page = DoubleViewTest.class.getResource("double.html");
	assertNotNull(page, "double.html found");



	final CountDownLatch view1Init = new CountDownLatch(1);
	final CountDownLatch view2Init = new CountDownLatch(1);
	Platform.runLater(() -> {
	FXBrowsers.load(view1, page, () -> {
	presenter1 = Fn.activePresenter();
	doubleView.applyBindings();
	log("applyBindings view One");
	view1Init.countDown();
	});

	FXBrowsers.load(view2, page, () -> {
	presenter2 = Fn.activePresenter();
	doubleView.applyBindings();
	log("applyBindings view Two");
	view2Init.countDown();
	});
	});
	view1Init.await();
	view2Init.await();
	log("initializeViews - done");
	assertNotNull(presenter1, "presenter for view1 found");
	assertNotNull(presenter2, "presenter for view2 found");
	}

	private void displayFrame(JFXPanel panel, JFXPanel p2) {
	view1 = displayWebView(panel);
	view2 = displayWebView(p2);

	frame = new JFrame();
	frame.getContentPane().setLayout(new FlowLayout());
	frame.getContentPane().add(panel);
	frame.getContentPane().add(p2);
	frame.pack();
	frame.setVisible(true);
	}

	private WebView displayWebView(JFXPanel panel) {
	BorderPane pane = new BorderPane();
	Scene scene = new Scene(pane, 800, 600);
	WebView webView = new WebView();
	pane.setCenter(webView);
	panel.setScene(scene);
	return webView;
	}

	@Test
	public void synchronizationOfViews() throws Throwable {
	final CountDownLatch cdl = new CountDownLatch(1);
	final Throwable[] arr = new Throwable[1];
	Platform.runLater(() -> {
	try {
	assertMessages("In view one", view1, "Initialized");
	assertMessages("In view two", view2, "Initialized");
	set = "Change1";
	clickButton("View one", view1);
	assertMessages("In view one", view1, "Change1");
	assertMessages("In view two", view2, "Change1");
	set = "Change2";
	clickButton("View two", view2);
	assertMessages("In view one", view1, "Change2");
	assertMessages("In view two", view2, "Change2");
	} catch (Throwable t) {
	arr[0] = t;
	} finally {
	cdl.countDown();
	}
	});
	cdl.await();
	if (arr[0] != null) {
	LOG.insert(0, arr[0].getMessage() + "\n\n");
	throw new AssertionError(LOG.toString(), arr[0]);
	}
	}

	@AfterMethod
	public void waitABit() throws Exception {
	final CountDownLatch cdl = new CountDownLatch(1);
	Platform.runLater(() -> {
	Parent p1 = view1.getParent();
	((BorderPane)p1).setCenter(new Label("Searching for GC root"));
	Parent p2 = view2.getParent();
	((BorderPane)p2).setCenter(new Label("Searching for GC root"));
	cdl.countDown();
	});
	cdl.await();

	assertGCPresenters();
	assertGCViews();

	Platform.runLater(() -> {
	Platform.setImplicitExit(false);
	frame.dispose();
	});
	}

	private void assertGCPresenters() {
	Reference<?> r1 = new WeakReference<>(presenter1);
	Reference<?> r2 = new WeakReference<>(presenter2);

	presenter1 = null;
	presenter2 = null;

	NbTestCase.assertGC("Clearing reference 1", r1);
	NbTestCase.assertGC("Clearing reference 2", r2);
	}

	private void assertGCViews() {
	try {
	Class.forName("java.lang.Module");
	// skip the test on JDK11 and more
	return;
	} catch (ClassNotFoundException ex) {
	// OK on JDK8
	}

	Reference<?> r1 = new WeakReference<>(view1);
	Reference<?> r2 = new WeakReference<>(view2);

	view1 = null;
	view2 = null;

	NbTestCase.assertGC("Clearing reference 1", r1);
	NbTestCase.assertGC("Clearing reference 2", r2);
	}

	private void assertMessages(String msg, WebView v, String expected) {
	Object func = v.getEngine().executeScript("document.getElementById('function').innerHTML");
	final String functionMsg = msg + " 'function' check";
	log(functionMsg).append(" got: ").append(func);
	assertEquals(func, expected, functionMsg);

	Object prop = v.getEngine().executeScript("document.getElementById('property').innerHTML");
	final String propertyMsg = msg + " 'property' check";
	log(propertyMsg).append(" got: ").append(prop);
	assertEquals(prop, expected, propertyMsg);
	}

	private void clickButton(String id, WebView v) {
	log("clickButton in ").append(id);
	v.getEngine().executeScript("document.getElementById('change').click()");
	log("clickButton finished in ").append(id);
	}

	private static StringBuffer log(String msg) {
	LOG.append("\n[").append(Thread.currentThread().getName()).append("] ").append(msg);
	return LOG;
	}
	}