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EntityLifecycleListenersTest.java
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EntityLifecycleListenersTest.java
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package cz.cvut.kbss.jopa.feature;
import cz.cvut.kbss.jopa.environment.OWLClassR;
import cz.cvut.kbss.jopa.environment.listener.AnotherListener;
import cz.cvut.kbss.jopa.environment.listener.ConcreteListener;
import cz.cvut.kbss.jopa.environment.listener.ParentListener;
import cz.cvut.kbss.jopa.environment.utils.Generators;
import cz.cvut.kbss.jopa.environment.utils.MetamodelMocks;
import cz.cvut.kbss.jopa.environment.utils.TestEnvironmentUtils;
import cz.cvut.kbss.jopa.model.EntityManagerImpl;
import cz.cvut.kbss.jopa.model.MetamodelImpl;
import cz.cvut.kbss.jopa.model.descriptors.Descriptor;
import cz.cvut.kbss.jopa.model.descriptors.EntityDescriptor;
import cz.cvut.kbss.jopa.sessions.*;
import cz.cvut.kbss.jopa.transactions.EntityTransaction;
import org.junit.Before;
import org.junit.Test;
import org.mockito.InOrder;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import java.lang.reflect.Field;
import static org.junit.Assert.assertSame;
import static org.mockito.Matchers.any;
import static org.mockito.Matchers.eq;
import static org.mockito.Mockito.*;
/**
* Verifies entity lifecycle listener behavior w.r.t. the JPA 2.1 spec.
*/
public class EntityLifecycleListenersTest {
private Descriptor descriptor;
@Mock
private MetamodelImpl metamodelMock;
@Mock
private CloneBuilderImpl cloneBuilderMock;
@Mock
private ConnectionWrapper storageMock;
@Mock
private EntityManagerImpl emMock;
private ParentListener parentListenerMock;
private ConcreteListener concreteListenerMock;
private AnotherListener anotherListenerMock;
private UnitOfWorkImpl uow;
@Before
public void setUp() throws Exception {
MockitoAnnotations.initMocks(this);
this.descriptor = new EntityDescriptor();
final ServerSessionStub serverSessionStub = spy(new ServerSessionStub(storageMock));
when(serverSessionStub.getMetamodel()).thenReturn(metamodelMock);
when(serverSessionStub.getLiveObjectCache()).thenReturn(mock(CacheManager.class));
final EntityTransaction transactionMock = mock(EntityTransaction.class);
when(emMock.getTransaction()).thenReturn(transactionMock);
when(transactionMock.isActive()).thenReturn(true);
final MetamodelMocks mocks = new MetamodelMocks();
mocks.setMocks(metamodelMock);
this.parentListenerMock = mocks.forOwlClassS().parentListener();
this.concreteListenerMock = mocks.forOwlClassR().concreteListener();
this.anotherListenerMock = mocks.forOwlClassR().anotherListener();
uow = new UnitOfWorkImpl(serverSessionStub);
uow.setEntityManager(emMock);
TestEnvironmentUtils.setMock(uow, UnitOfWorkImpl.class.getDeclaredField("cloneBuilder"), cloneBuilderMock);
}
@Test
public void prePersistLifecycleListenerIsCalledBeforeInstanceIsInsertedIntoPersistenceContext() {
final OWLClassR rInstance = spy(new OWLClassR());
doAnswer(invocationOnMock -> {
final OWLClassR instance = (OWLClassR) invocationOnMock.getArguments()[1];
instance.setUri(Generators.createIndividualIdentifier());
return null;
}).when(storageMock).persist(null, rInstance, descriptor);
uow.registerNewObject(rInstance, descriptor);
final InOrder inOrder = inOrder(rInstance, parentListenerMock, concreteListenerMock, anotherListenerMock,
storageMock);
inOrder.verify(parentListenerMock).prePersist(rInstance);
inOrder.verify(concreteListenerMock).prePersist(rInstance);
inOrder.verify(anotherListenerMock).prePersist(rInstance);
inOrder.verify(rInstance).prePersist();
inOrder.verify(storageMock).persist(any(Object.class), eq(rInstance), eq(descriptor));
}
@Test
public void preRemoveEntityLifecycleListenerIsCalledBeforeInstanceIsRemovedFromPersistenceContext() throws
Exception {
final OWLClassR rOriginal = new OWLClassR(Generators.createIndividualIdentifier());
final OWLClassR rInstance = spy(new OWLClassR(rOriginal.getUri()));
when(cloneBuilderMock.buildClone(rOriginal, descriptor)).thenReturn(rInstance);
uow.registerExistingObject(rOriginal, descriptor);
uow.removeObject(rInstance);
final InOrder inOrder = inOrder(rInstance, concreteListenerMock, storageMock);
inOrder.verify(concreteListenerMock).preRemove(rInstance);
inOrder.verify(rInstance).preRemove();
inOrder.verify(storageMock).remove(rInstance.getUri(), OWLClassR.class, descriptor);
}
@Test
public void postPersistEntityLifecycleListenerIsCalledAfterStoragePersistOccurs() {
final OWLClassR rInstance = spy(new OWLClassR());
doAnswer(invocationOnMock -> {
final OWLClassR instance = (OWLClassR) invocationOnMock.getArguments()[1];
instance.setUri(Generators.createIndividualIdentifier());
return null;
}).when(storageMock).persist(null, rInstance, descriptor);
uow.registerNewObject(rInstance, descriptor);
final InOrder inOrder = inOrder(rInstance, concreteListenerMock, storageMock);
inOrder.verify(storageMock).persist(any(Object.class), eq(rInstance), eq(descriptor));
inOrder.verify(concreteListenerMock).postPersist(rInstance);
inOrder.verify(rInstance).postPersist();
}
@Test
public void postRemoveEntityLifecycleListenerIsCalledAfterStorageRemoveOccurs() throws Exception {
final OWLClassR rOriginal = new OWLClassR(Generators.createIndividualIdentifier());
final OWLClassR rInstance = spy(new OWLClassR(rOriginal.getUri()));
when(cloneBuilderMock.buildClone(rOriginal, descriptor)).thenReturn(rInstance);
uow.registerExistingObject(rOriginal, descriptor);
uow.removeObject(rInstance);
final InOrder inOrder = inOrder(rInstance, concreteListenerMock, storageMock);
inOrder.verify(storageMock).remove(rInstance.getUri(), OWLClassR.class, descriptor);
inOrder.verify(concreteListenerMock).postRemove(rInstance);
inOrder.verify(rInstance).postRemove();
}
@Test
public void postLoadEntityLifecycleListenerIsCalledAfterInstanceIsLoadedIntoPersistenceContext() throws Exception {
final OWLClassR rOriginal = new OWLClassR(Generators.createIndividualIdentifier());
final OWLClassR rInstance = spy(new OWLClassR(rOriginal.getUri()));
when(cloneBuilderMock.buildClone(rOriginal, descriptor)).thenReturn(rInstance);
when(storageMock.find(new LoadingParameters<>(OWLClassR.class, rOriginal.getUri(), descriptor)))
.thenReturn(rOriginal);
final OWLClassR result = uow.readObject(OWLClassR.class, rOriginal.getUri(), descriptor);
assertSame(rInstance, result);
final InOrder inOrder = inOrder(rInstance, concreteListenerMock);
inOrder.verify(concreteListenerMock).postLoad(rInstance);
inOrder.verify(rInstance).postLoad();
}
@Test
public void postLoadEntityLifecycleListenerIsCalledAfterInstanceRefresh() throws Exception {
final OWLClassR rOriginal = new OWLClassR(Generators.createIndividualIdentifier());
final OWLClassR rInstance = spy(new OWLClassR(rOriginal.getUri()));
when(cloneBuilderMock.buildClone(rOriginal, descriptor)).thenReturn(rInstance);
uow.registerExistingObject(rOriginal, descriptor);
uow.revertObject(rInstance);
final InOrder inOrder = inOrder(rInstance, concreteListenerMock);
inOrder.verify(concreteListenerMock).postLoad(rInstance);
inOrder.verify(rInstance).postLoad();
}
@Test
public void preUpdateIsCalledBeforeFieldUpdateIsMergedIntoStorage() throws Exception {
final OWLClassR rOriginal = new OWLClassR(Generators.createIndividualIdentifier());
final OWLClassR rInstance = spy(new OWLClassR(rOriginal.getUri()));
when(cloneBuilderMock.buildClone(rOriginal, descriptor)).thenReturn(rInstance);
uow.registerExistingObject(rOriginal, descriptor);
rInstance.setStringAtt("Update");
// Have to call it manually, aspects do not work here
uow.attributeChanged(rInstance, OWLClassR.getStringAttField());
final InOrder inOrder = inOrder(rInstance, concreteListenerMock, storageMock);
inOrder.verify(concreteListenerMock).preUpdate(rInstance);
inOrder.verify(rInstance).preUpdate();
inOrder.verify(storageMock).merge(rInstance, OWLClassR.getStringAttField(), descriptor);
}
@Test
public void preUpdateIsCalledBeforeStorageMergeWhenDetachedInstanceIsMergedIntoPersistenceContext() {
final OWLClassR rOriginal = spy(new OWLClassR(Generators.createIndividualIdentifier()));
final OWLClassR rInstance = spy(new OWLClassR(rOriginal.getUri()));
when(storageMock.contains(rInstance.getUri(), rInstance.getClass(), descriptor)).thenReturn(true);
when(storageMock.find(any())).thenReturn(rOriginal);
rInstance.setStringAtt("differentString");
when(cloneBuilderMock.buildClone(rOriginal, descriptor)).thenReturn(rOriginal);
final OWLClassR merged = uow.mergeDetached(rInstance, descriptor);
final InOrder inOrder = inOrder(merged, concreteListenerMock, storageMock);
inOrder.verify(concreteListenerMock).preUpdate(merged);
inOrder.verify(merged).preUpdate();
inOrder.verify(storageMock, atLeastOnce()).merge(eq(merged), any(Field.class), eq(descriptor));
}
@Test
public void preUpdateIsNotCalledWhenMergedEntityHasNoChangesComparedToStorageOriginal() {
final OWLClassR rOriginal = spy(new OWLClassR(Generators.createIndividualIdentifier()));
final OWLClassR rInstance = spy(new OWLClassR(rOriginal.getUri()));
when(storageMock.contains(rInstance.getUri(), rInstance.getClass(), descriptor)).thenReturn(true);
when(storageMock.find(any())).thenReturn(rOriginal);
when(cloneBuilderMock.buildClone(rOriginal, descriptor)).thenReturn(rOriginal);
final OWLClassR merged = uow.mergeDetached(rInstance, descriptor);
verify(concreteListenerMock, never()).preUpdate(any());
verify(merged, never()).preUpdate();
verify(storageMock, never()).merge(eq(merged), any(Field.class), eq(descriptor));
}
@Test
public void postUpdateIsCalledAfterFieldUpdateWasMergedIntoStorage() throws Exception {
final OWLClassR rOriginal = new OWLClassR(Generators.createIndividualIdentifier());
final OWLClassR rInstance = spy(new OWLClassR(rOriginal.getUri()));
when(cloneBuilderMock.buildClone(rOriginal, descriptor)).thenReturn(rInstance);
uow.registerExistingObject(rOriginal, descriptor);
rInstance.setStringAtt("Update");
// Have to call it manually, aspects do not work here
uow.attributeChanged(rInstance, OWLClassR.getStringAttField());
final InOrder inOrder = inOrder(rInstance, concreteListenerMock, storageMock);
inOrder.verify(storageMock).merge(rInstance, OWLClassR.getStringAttField(), descriptor);
inOrder.verify(concreteListenerMock).postUpdate(rInstance);
inOrder.verify(rInstance).postUpdate();
}
@Test
public void postUpdateIsCalledAfterStorageMergeWhenDetachedInstanceIsMergedIntoPersistenceContext() {
final OWLClassR rOriginal = spy(new OWLClassR(Generators.createIndividualIdentifier()));
final OWLClassR rInstance = spy(new OWLClassR(rOriginal.getUri()));
when(storageMock.contains(rInstance.getUri(), rInstance.getClass(), descriptor)).thenReturn(true);
when(storageMock.find(any())).thenReturn(rOriginal);
rInstance.setStringAtt("differentString");
when(cloneBuilderMock.buildClone(rOriginal, descriptor)).thenReturn(rOriginal);
final OWLClassR merged = uow.mergeDetached(rInstance, descriptor);
final InOrder inOrder = inOrder(merged, concreteListenerMock, storageMock);
inOrder.verify(storageMock, atLeastOnce()).merge(eq(merged), any(Field.class), eq(descriptor));
inOrder.verify(concreteListenerMock).postUpdate(merged);
inOrder.verify(merged).postUpdate();
}
@Test
public void postUpdateIsNotCalledWhenMergedEntityHasNoChangesComparedToStorageOriginal() {
final OWLClassR rOriginal = spy(new OWLClassR(Generators.createIndividualIdentifier()));
final OWLClassR rInstance = spy(new OWLClassR(rOriginal.getUri()));
when(storageMock.contains(rInstance.getUri(), rInstance.getClass(), descriptor)).thenReturn(true);
when(storageMock.find(any())).thenReturn(rOriginal);
when(cloneBuilderMock.buildClone(rOriginal, descriptor)).thenReturn(rOriginal);
final OWLClassR merged = uow.mergeDetached(rInstance, descriptor);
verify(concreteListenerMock, never()).postUpdate(any());
verify(merged, never()).postUpdate();
verify(storageMock, never()).merge(eq(merged), any(Field.class), eq(descriptor));
}
}