Here you go...try it with this:
http://code.google.com/p/google-web-toolkit/source/browse/releases/1.7/user/src/com/google/gwt/junit/GWTMockUtilities.java
import static org.easymock.classextension.EasyMock.createMock;
import static org.junit.Assert.assertNotNull;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import com.google.gwt.junit.GWTMockUtilities;
import com.google.gwt.user.client.ui.TextBox;
public class TestSomething {
@Before
public void setUp() throws Exception {
GWTMockUtilities.disarm();
}
@After
public void tearDown() throws Exception {
GWTMockUtilities.restore();
}
@Test
public void testThatEasyMockWorksWithTextBox() {
TextBox box = createMock(TextBox.class);
assertNotNull(box);
}
}
On Aug 19, 11:19 am, davis <[email protected]> wrote:
> Probably stems from the constructor doing this:
>
> /**
> * Creates an empty text box.
> */
> public TextBox() {
> this(Document.get().createTextInputElement(), "gwt-TextBox");
> }
>
> http://code.google.com/p/google-web-toolkit/source/browse/releases/1....
>
> Anyone have a mock workaround for ui elements they'd like to share?
> Is there a mock framework out there for GWT ui elements?
>
> On Aug 19, 11:14 am, davis <[email protected]> wrote:
>
> > My fault -- I thought you were talking about something else. It
> > appears you are correct. It looks like even easy mock class extension
> > can't do it. Somewhere in the initialization code of TextBox.class it
> > calls GWT.create()...major bummer.
>
> > On Aug 19, 10:59 am, "Alejandro D. Garin" <[email protected]> wrote:
>
> > > Hi David,
>
> > > I tried your example, but I have this error:
>
> > > Caused by: java.lang.UnsupportedOperationException: ERROR: GWT.create() is
> > > only usable in client code! It cannot be called, for example, from server
> > > code. If you are running a unit test, check that your test case extends
> > > GWTTestCase and that GWT.create() is not called from within an initializer
> > > or constructor.
>
> > > Stacktrace:
>
> > > java.lang.ExceptionInInitializerError
> > > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > > at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> > > at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> > > at java.lang.reflect.Method.invoke(Unknown Source)
> > > at net.sf.cglib.proxy.Enhancer.setCallbacksHelper(Enhancer.java:619)
> > > at net.sf.cglib.proxy.Enhancer.setThreadCallbacks(Enhancer.java:612)
> > > at net.sf.cglib.proxy.Enhancer.registerCallbacks(Enhancer.java:581)
> > > at
> > > org.easymock.classextension.internal.ClassProxyFactory.createProxy(ClassProxyFactory.java:108)
> > > at org.easymock.internal.MocksControl.createMock(MocksControl.java:51)
> > > at org.easymock.classextension.EasyMock.createMock(EasyMock.java:46)
> > > at example.publico.client.SimpleTest.testSimple(SimpleTest.java:10)
> > > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > > at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> > > at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> > > at java.lang.reflect.Method.invoke(Unknown Source)
> > > 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.OldTestClassRunner.run(OldTestClassRunner.java:76)
> > > at
> > > org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:45)
> > > at
> > > org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> > > at
> > > org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
> > > at
> > > org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
> > > at
> > > org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
> > > at
> > > org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
> > > Caused by: java.lang.UnsupportedOperationException: ERROR: GWT.create() is
> > > only usable in client code! It cannot be called, for example, from server
> > > code. If you are running a unit test, check that your test case extends
> > > GWTTestCase and that GWT.create() is not called from within an initializer
> > > or constructor.
> > > at com.google.gwt.core.client.GWT.create(GWT.java:85)
> > > at com.google.gwt.user.client.ui.UIObject.<clinit>(UIObject.java:140)
> > > ... 30 more
>
> > > On Wed, Aug 19, 2009 at 11:09 AM, davis
> > > <[email protected]>wrote:
>
> > > > > If your view interface return a TextBox you can't test the presenter
> > > > > with
> > > > > JUnit, you will need to use GWTTestCase.
>
> > > > Sure you can:
>
> > > > import static org.easymock.classextension.EasyMock.*;
> > > > import com.google.gwt.user.client.ui.TextBox;
>
> > > > public class SomePresenterTestCase {
>
> > > > private MyPresenter presenter;
> > > > private MyView view;
>
> > > > @Test
> > > > public void testSomething() {
> > > > TextBox mockBox = createMock(TextBox.class);
> > > > MyView mockView = createMock(MyView.class);
> > > > presenter = new MyPresenter(mockView);
> > > > expect(mockView.getSomeTextBox()).andReturn(mockBox);
> > > > replay(mockView);
> > > > replay(mockBox);
> > > > TextBox box = presenter.getDisplay().getSomeTextBox();
> > > > verify(mockView);
> > > > }
> > > > }
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