I have no idea what is going on here. The gist:
- GWTTestSuite is reporting MeasureDTOCacheTest is failing at
on testGetSummaryData()
- The output for the above is showing the failing assert
in ZoomOutAnimationTest.zoomOutAnimationTest() 's onComplete() method
On checking, there is no link, at all between these two test cases. Nothing
is shared in common and neither call anything having to do with the other.
AND this test has passed 5000 times, but recently, on a new build agent (VM
Ubunut 12.04 1GB ram, x64) it fails 50% of the time. There are 4 more
identical clones of this VM and they never fail.
Here is the kicker, the failure in ZoomOutAnimationTest is because it was
written wrong. It makes a scheduled event for 1s, but the dev never delayed
the test finish, so the asserts in onComplete() never ran. But now, that
onComplete() is getting run, from MeasureDTOCacheTest. Is this a thread
safety bug in GWTTestCase and GWTTestSuite?
// MeasureDTOCacheTest.java
public void testGetSummaryData() {
delayTestFinish(AJAX_TEST_FINISH_DELAY); // put test into async mode
//run
service.getSummaryData(new AsyncCallbackProvider<MeasureDTOContainer>()
{
@Override
public void onSuccess(MeasureDTOContainer result) {
Assert.assertNotNull( result.getMeasureDTOArr() ); // should be
original model
finishTest();
}
});
}
// ZoomOutAnimation.java
public void testZoomOutAnimation() {
ElementWrapper containerElement = new MockElementWrapper(645, 455);
final ElementWrapper zoomingElement = new MockElementWrapper(1122, 792,
-337, -447);
ZoomOutAnimation zoomOutAnimation = new
ZoomOutAnimation(containerElement) {
@Override
protected void onComplete() {
super.onComplete();
// animation will take size from 0->testHeight, test that it
ends at testHeight
assertEquals(645, zoomingElement.getHeight()); // this was
wrong, so it will always fail
assertEquals(455, zoomingElement.getWidth());
}
};
zoomOutAnimation.run(1000); // scheduled for 1s, but then thread exits,
so onComplete() never run
}
The trace:
Tests run: 191, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 72.559
sec <<< FAILURE!
*testGetSummaryData*(com.foo.client.resources.cache.*MeasureDTOCacheTest*)
Time elapsed: 3.487 sec <<< FAILURE!
junit.framework.AssertionFailedError: Remote test failed at 127.0.0.1 /
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.19)
Gecko/2010031422 Firefox/3.0.19
expected=645 actual=1122
at junit.framework.Assert.fail(Assert.java:197)
at junit.framework.Assert.assertEquals(Assert.java:94)
at junit.framework.Assert.assertEquals(Assert.java:43)
at com.foo.client.widgets.documents.animations.*ZoomOutAnimationTest*
$1.onComplete(ZoomOutAnimationTest.java:22)
at com.google.gwt.animation.client.Animation.update(Animation.java:232)
at
com.google.gwt.animation.client.Animation.updateAnimations(Animation.java:55)
at com.google.gwt.animation.client.Animation.access$0(Animation.java:47)
at com.google.gwt.animation.client.Animation$1.run(Animation.java:148)
at com.google.gwt.user.client.Timer.fire(Timer.java:141)
at sun.reflect.GeneratedMethodAccessor64.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
at
com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:167)
at
com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingForReturn(BrowserChannelServer.java:326)
at
com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:207)
at
com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:132)
at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:561)
at
com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:269)
at
com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91)
at com.google.gwt.core.client.impl.Impl.apply(Impl.java)
at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:214)
at sun.reflect.GeneratedMethodAccessor26.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
at
com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:167)
at
com.google.gwt.dev.shell.BrowserChannelServer.reactToMessages(BrowserChannelServer.java:281)
at
com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:531)
at
com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:352)
at java.lang.Thread.run(Thread.java:679)
Sincerely,
Joseph
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