junit - Java Unit test for Exception -

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public document query(string uri) throws ioexception, illegalargumentexception {      final httpget httpget = new httpget(uri);     final httpresponse response = httpclient.execute(httpget);     final httpentity entity = response.getentity();     document doc = null;     try     {         documentbuilderfactory factory = documentbuilderfactory.newinstance();         documentbuilder builder = factory.newdocumentbuilder();         doc = builder.parse(entity.getcontent());     }     catch (saxexception e)     {          logger.error(e);         throw new illegalargumentexception("parse error" + e);     }     catch (parserconfigurationexception e)     {          logger.error(e);         throw new illegalargumentexception("parameter factor invalid: " + e);     }     catch (illegalstateexception e)     {          logger.error(e);         throw new illegalargumentexception("null entity contetents" + e);     }      return doc; }    @test(expected = illegalargumentexception.class) public void testquery_parseexceptionthrown() throws exception {     string uri ="some uri";     easymock.expect(httpclient.execute(easymock.isa(httpget.class))).andreturn(mockresponse);     easymock.expect(mockresponse.getentity()).andreturn(mockentity);     easymock.expect(mockentity.getcontent()).andreturn(new bytearrayinputstream(repsonse_example.getbytes()));     documentbuilderfactory factory = documentbuilderfactory.newinstance();     documentbuilder builder = factory.newdocumentbuilder();       easymock.expect(builder.parse(easymock.isa(inputstream.class))).andthrow(             new illegalargumentexception("expected"));     easymock.replay();     class.query(uri);  }

error:

java.lang.illegalstateexception: calling verify not allowed in record state     @ org.easymock.internal.mockscontrol.verify(mockscontrol.java:181)     @ org.powermock.api.easymock.internal.invocationcontrol.easymockmethodinvocationcontrol.verify(easymockmethodinvocationcontrol.java:120)     @ org.powermock.api.easymock.powermock.verify(powermock.java:1650)     @ org.powermock.api.easymock.powermock.verifyall(powermock.java:1586)     @ com.amazon.ams.test.abstractunittest.verifymocks(abstractunittest.java:78)     @ sun.reflect.nativemethodaccessorimpl.invoke0(native method)     @ sun.reflect.nativemethodaccessorimpl.invoke(nativemethodaccessorimpl.java:57)     @ sun.reflect.delegatingmethodaccessorimpl.invoke(delegatingmethodaccessorimpl.java:43)     @ java.lang.reflect.method.invoke(method.java:606)     @ org.junit.internal.runners.methodroadie.runafters(methodroadie.java:145)     @ org.junit.internal.runners.methodroadie.runbeforesthentestthenafters(methodroadie.java:99)     @ org.powermock.modules.junit4.internal.impl.powermockjunit44runnerdelegateimpl$powermockjunit44methodrunner.executetest(powermockjunit44runnerdelegateimpl.java:296)     @ org.powermock.modules.junit4.internal.impl.powermockjunit47runnerdelegateimpl$powermockjunit47methodrunner.executetestinsuper(powermockjunit47runnerdelegateimpl.java:112)     @ org.powermock.modules.junit4.internal.impl.powermockjunit47runnerdelegateimpl$powermockjunit47methodrunner.executetest(powermockjunit47runnerdelegateimpl.java:73)     @ org.powermock.modules.junit4.internal.impl.powermockjunit44runnerdelegateimpl$powermockjunit44methodrunner.runbeforesthentestthenafters(powermockjunit44runnerdelegateimpl.java:284)     @ org.junit.internal.runners.methodroadie.runtest(methodroadie.java:84)     @ org.junit.internal.runners.methodroadie.run(methodroadie.java:49)     @ org.powermock.modules.junit4.internal.impl.powermockjunit44runnerdelegateimpl.invoketestmethod(powermockjunit44runnerdelegateimpl.java:209)     @ org.powermock.modules.junit4.internal.impl.powermockjunit44runnerdelegateimpl.runmethods(powermockjunit44runnerdelegateimpl.java:148)     @ org.powermock.modules.junit4.internal.impl.powermockjunit44runnerdelegateimpl$1.run(powermockjunit44runnerdelegateimpl.java:122)     @ org.junit.internal.runners.classroadie.rununprotected(classroadie.java:34)     @ org.junit.internal.runners.classroadie.runprotected(classroadie.java:44)     @ org.powermock.modules.junit4.internal.impl.powermockjunit44runnerdelegateimpl.run(powermockjunit44runnerdelegateimpl.java:120)     @ org.powermock.modules.junit4.common.internal.impl.junit4testsuitechunkerimpl.run(junit4testsuitechunkerimpl.java:102)     @ org.powermock.modules.junit4.common.internal.impl.abstractcommonpowermockrunner.run(abstractcommonpowermockrunner.java:53)     @ org.powermock.modules.junit4.powermockrunner.run(powermockrunner.java:42)     @ org.eclipse.jdt.internal.junit4.runner.junit4testreference.run(junit4testreference.java:50)     @ org.eclipse.jdt.internal.junit.runner.testexecution.run(testexecution.java:38)     @ org.eclipse.jdt.internal.junit.runner.remotetestrunner.runtests(remotetestrunner.java:467)     @ org.eclipse.jdt.internal.junit.runner.remotetestrunner.runtests(remotetestrunner.java:683)     @ org.eclipse.jdt.internal.junit.runner.remotetestrunner.run(remotetestrunner.java:390)     @ org.eclipse.jdt.internal.junit.runner.remotetestrunner.main(remotetestrunner.java:197)

i keep getting errors 

java.lang.assertionerror: expected exception: org.xml.sax.saxexception java.lang.illegalstateexception: calling verify not allowed in record state

there 3 exceptions need write junit test exception. know how use powermock or easymock class write unit test it?

if have mock builder using easymock can throw exceptions instead of return values:

easymock.expect(builder.parse(mycontent)).andthrow( myexception);

where myexception exception instance want throw (created new myexception(...));

edit: example test code:

@test public void parsethrowsillegalstateexception(){     //... creating mock factory, builder , entity not shown      //create new exception thrown     illegalstateexception expectedexception = new illegalstateexception("expected");      easymock.expect(mockbuilder.parse(mockcontent).andthrow(expectedexception);      easymock.replay(...);      //exercise system under test tries parse entity's content     //... }

edit 2: posted actual test code think problem might these lines:

easymock.expect(mockentity.getcontent()).andreturn(new bytearrayinputstream(repsonse_example.getbytes()));  ... easymock.expect(builder.parse(new bytearrayinputstream(malformed_xml.getbytes()))).andthrow(new saxexception("expected"));

i don't think bytearrayinputstream overrides equals() using object.equals(). bytearrayinputstreams won't equal easymock never throw exception

i change builder.parse() expectation to:

easymock.expect(builder.parse(easymock.isa(inputstream.class))).andthrow(new saxexception("expected"));

which throw when parse called no matter inputstream is.

as side note, error message mentioned "calling verify not allowed in record state" don't see calls verify() or verifyall() anywhere.


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