Is It possible to use EasyMock with Junitperf?

[salma-yasser]

I am currently working on open source project which have junit test cases (Junit 4) using EasyMock. When I use ContiPerf for testing performance with many threads , I get this exception:

org.databene.contiperf.PerfTestExecutionError: java.util.ConcurrentModificationException
at org.databene.contiperf.util.ContiPerfUtil.executionError(ContiPerfUtil.java:58)
at org.databene.contiperf.junit.JUnitInvoker.invoke(JUnitInvoker.java:46)
at org.databene.contiperf.util.InvokerProxy.invoke(InvokerProxy.java:38)
at org.databene.contiperf.PerformanceTracker.invoke(PerformanceTracker.java:87)
at org.databene.contiperf.CountRunner.run(CountRunner.java:44)
at java.lang.Thread.run(Thread.java:722)
Caused by: java.util.ConcurrentModificationException
at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:819)
at java.util.ArrayList$Itr.next(ArrayList.java:791)
at org.easymock.internal.UnorderedBehavior.addExpected(UnorderedBehavior.java:38)
at org.easymock.internal.MocksBehavior.addExpected(MocksBehavior.java:61)
at org.easymock.internal.RecordState.times(RecordState.java:184)
at org.easymock.internal.RecordState.closeMethod(RecordState.java:226)
at org.easymock.internal.RecordState.invoke(RecordState.java:76)
at org.easymock.internal.MockInvocationHandler.invoke(MockInvocationHandler.java:40)
at org.easymock.internal.ObjectMethodsFilter.invoke(ObjectMethodsFilter.java:85)
at $Proxy7.getByName(Unknown Source)
at fi.hut.soberit.agilefant.business.SettingBusinessTest.testStoreSetting_boolean(SettingBusinessTest.java:94)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.databene.contiperf.junit.JUnitInvoker.invoke(JUnitInvoker.java:43)
... 4 more

My Question is how can I use multi threads using ContiPerf with EasyMock?
And to be more clear the test case like this:

@Test
@PerfTest(invocations = 10, threads = 5)
public void testStoreSetting_boolean() {
	expect(settingDAO.getByName("bool")).andReturn(null);
    expect(settingDAO.create(EasyMock.isA(Setting.class))).andReturn((Integer)1);
    Setting created = new Setting();
    created.setValue("true");
    expect(settingDAO.getByName("bool")).andReturn(created);
    replay(settingDAO);
    testable.storeSetting("bool", true);
    assertEquals("true", testable.retrieveByName("bool").getValue());
    verify(settingDAO);
}

[henri-tremblay]

I will need to dig a little more into it to see if something can be done about it. But right now I'll call this "normal". This idea was that for a multithreaded test, you record on mono thread and then we sync replay during the replay phase. In your case, you would need full sync. Which could be done by EasyMock, but also externally.

For instance,

@Test
@PerfTest(invocations = 10, threads = 5)
public void testStoreSetting_boolean() {
    Setting created = new Setting();
    created.setValue("true");          
    synchronized(this) {
        expect(settingDAO.getByName("bool")).andReturn(null);
        expect(settingDAO.create(EasyMock.isA(Setting.class))).andReturn((Integer)1);
        expect(settingDAO.getByName("bool")).andReturn(created);
    }
    replay(settingDAO);
    testable.storeSetting("bool", true);
    assertEquals("true", testable.retrieveByName("bool").getValue());
    verify(settingDAO);
}

might work.

I will keep this bug open for now in case you might do something better than that.