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POUnit testing ModalWindow's content refresh fails while the actual functionality works as expected - what am I doing wrong?
 

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  1. POUnit testing ModalWindow's content refresh fails while the actual functionality works as expected - what am I doing wrong?
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    <p>So, I've spent a couple of hours first trying to "fix" this myself and then Googling like a madman but didn't find anything that would've helped so now I'm here.</p> <p>Basically I have a custom <code>Panel</code> within Wicket's own <code>ModalWindow</code> and since I like unit testing, I want to test it. The specific behavior here is refreshing the <code>ModalWindow</code>'s content: In my actual code from where I extracted this the Ajax event handling actually reloads new stuff to the content panel, I just removed those to make this shorter.</p> <p>So, here's the <code>Panel</code>'s code</p> <pre><code>package wicket.components; import org.apache.wicket.ajax.AjaxRequestTarget; import org.apache.wicket.ajax.markup.html.form.AjaxButton; import org.apache.wicket.extensions.ajax.markup.html.modal.ModalWindow; import org.apache.wicket.markup.html.form.Form; import org.apache.wicket.markup.html.panel.Panel; import org.apache.wicket.model.*; public class MyModalWindowPanel extends Panel { private Form form; private ModalWindow modal; public MyModalWindowPanel(String id, ModalWindow modal) { super(id); this.setOutputMarkupId(true); this.modal = modal; initializeForm(); addBasicDataFieldsToForm(); add(campaignForm); } private void initializeForm() { form = new Form("form"); form.setOutputMarkupId(true); } private void addBasicDataFieldsToForm() { campaignForm.add(new AjaxButton("infoSubmit", new Model&lt;String&gt;("Ajaxy Click")) { protected void onSubmit(AjaxRequestTarget target, Form&lt;?&gt; form) { modal.setContent(new MyModalWindowPanel(modal.getContentId(), modal)); modal.show(target); } }); } } </code></pre> <p>and the corresponding markup</p> <pre><code>&lt;wicket:panel&gt; &lt;form wicket:id="form"&gt; &lt;input type="submit" value="Ajaxy Click" wicket:id="infoSubmit" /&gt; &lt;/form&gt; &lt;/wicket:panel&gt; </code></pre> <p><strong>Do note that when run in servlet container such as Tomcat, this works correctly - there's no functional bugs here!</strong></p> <p>So what's the problem then? I'm not seemingly able to get the <em>unit test</em> for this to work! My test class for the panel looks like this</p> <pre><code>package wicket.components; import org.apache.wicket.extensions.ajax.markup.html.modal.ModalWindow; import org.apache.wicket.markup.html.panel.Panel; import org.apache.wicket.util.tester.*; import junit.framework.TestCase; public class MyModalWindowPanelTestCase extends TestCase { private WicketTester tester; private ModalWindow modal; @Override protected void setUp() throws Exception { tester = new WicketTester(); modal = new ModalWindow("modal"); tester.startPanel(new TestPanelSource() { public Panel getTestPanel(String id) { return new MyModalWindowPanel(id, modal); } }); } public void testReloadingPanelWorks() throws Exception { // the next line fails! tester.executeAjaxEvent("panel:campaignForm:campaignInfoSubmit", "onclick"); tester.assertNoErrorMessage(); } } </code></pre> <p>and here's the resulting stacktrace of running that</p> <pre><code>java.lang.IllegalStateException: No Page found for component [MarkupContainer [Component id = modal]] at org.apache.wicket.Component.getPage(Component.java:1763) at org.apache.wicket.RequestCycle.urlFor(RequestCycle.java:872) at org.apache.wicket.Component.urlFor(Component.java:3295) at org.apache.wicket.behavior.AbstractAjaxBehavior.getCallbackUrl(AbstractAjaxBehavior.java:124) at org.apache.wicket.ajax.AbstractDefaultAjaxBehavior.getCallbackScript(AbstractDefaultAjaxBehavior.java:118) at org.apache.wicket.ajax.AbstractDefaultAjaxBehavior.getCallbackScript(AbstractDefaultAjaxBehavior.java:106) at org.apache.wicket.extensions.ajax.markup.html.modal.ModalWindow$WindowClosedBehavior.getCallbackScript(ModalWindow.java:927) at org.apache.wicket.extensions.ajax.markup.html.modal.ModalWindow.getWindowOpenJavascript(ModalWindow.java:1087) at org.apache.wicket.extensions.ajax.markup.html.modal.ModalWindow.show(ModalWindow.java:352) at wicket.components.MyModalWindowPanel$1.onSubmit(MyModalWindowPanel.java:45) at org.apache.wicket.ajax.markup.html.form.AjaxButton$1.onSubmit(AjaxButton.java:102) at org.apache.wicket.ajax.form.AjaxFormSubmitBehavior.onEvent(AjaxFormSubmitBehavior.java:143) at org.apache.wicket.ajax.AjaxEventBehavior.respond(AjaxEventBehavior.java:177) at org.apache.wicket.ajax.AbstractDefaultAjaxBehavior.onRequest(AbstractDefaultAjaxBehavior.java:299) at org.apache.wicket.util.tester.BaseWicketTester.executeAjaxEvent(BaseWicketTester.java:1236) at org.apache.wicket.util.tester.BaseWicketTester.executeAjaxEvent(BaseWicketTester.java:1109) at wicket.components.MyModalWindowPanelTestCase.testReloadingPanelWorks(MyModalWindowPanelPanelTestCase.java:31) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at junit.framework.TestCase.runTest(TestCase.java:168) at junit.framework.TestCase.runBare(TestCase.java:134) at junit.framework.TestResult$1.protect(TestResult.java:110) at junit.framework.TestResult.runProtected(TestResult.java:128) at junit.framework.TestResult.run(TestResult.java:113) at junit.framework.TestCase.run(TestCase.java:124) at junit.framework.TestSuite.runTest(TestSuite.java:232) at junit.framework.TestSuite.run(TestSuite.java:227) at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:81) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) </code></pre> <p>So, <strong>how can/should I fix my unit test so that it would pass?</strong></p>
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    1. COSorry in advance for the long title (*unless someone condenses it to a better and shorter one*) and long code samples.
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