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UnitOfWorkMergeTest.java
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UnitOfWorkMergeTest.java
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/**
* Copyright (C) 2019 Czech Technical University in Prague
* <p>
* This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later
* version.
* <p>
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details. You should have received a copy of the GNU General Public License along with this program. If not, see
* <http://www.gnu.org/licenses/>.
*/
package cz.cvut.kbss.jopa.sessions;
import cz.cvut.kbss.jopa.environment.OWLClassA;
import cz.cvut.kbss.jopa.environment.OWLClassD;
import cz.cvut.kbss.jopa.environment.OWLClassF;
import cz.cvut.kbss.jopa.environment.Vocabulary;
import cz.cvut.kbss.jopa.environment.utils.Generators;
import cz.cvut.kbss.jopa.exceptions.InferredAttributeModifiedException;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.mockito.ArgumentCaptor;
import java.lang.reflect.Field;
import java.util.*;
import static org.junit.jupiter.api.Assertions.*;
import static org.mockito.Mockito.*;
public class UnitOfWorkMergeTest extends UnitOfWorkTestBase {
@BeforeEach
public void setUp() throws Exception {
super.setUp();
}
@Test
void testMergeDetachedExisting() throws Exception {
mergeDetachedTest();
}
private void mergeDetachedTest() throws Exception {
when(storageMock.contains(entityA.getUri(), entityA.getClass(), descriptor)).thenReturn(Boolean.TRUE);
final OWLClassA orig = new OWLClassA();
orig.setUri(entityA.getUri());
orig.setStringAttribute("oldStringAttribute");
orig.setTypes(new HashSet<>(entityA.getTypes()));
final Iterator<String> it = orig.getTypes().iterator();
it.next();
it.remove();
when(storageMock.find(any())).thenReturn(orig);
final OWLClassA res = uow.mergeDetached(entityA, descriptor);
assertNotNull(res);
assertEquals(entityA.getUri(), res.getUri());
final ArgumentCaptor<Field> ac = ArgumentCaptor.forClass(Field.class);
verify(storageMock, atLeastOnce()).merge(any(Object.class), ac.capture(), eq(descriptor));
final List<Field> mergedFields = ac.getAllValues();
assertTrue(mergedFields.contains(OWLClassA.getStrAttField()));
assertTrue(mergedFields.contains(OWLClassA.getTypesField()));
}
@Test
void mergeDetachedEvictsInstanceFromCache() throws Exception {
when(cacheManagerMock.contains(OWLClassA.class, entityA.getUri(), descriptor)).thenReturn(Boolean.TRUE);
mergeDetachedTest();
verify(cacheManagerMock).evict(OWLClassA.class, entityA.getUri(), CONTEXT_URI);
}
@Test
void mergeDetachedRegistersNewObjectWhenItDoesNotExist() {
when(storageMock.contains(entityA.getUri(), entityA.getClass(), descriptor))
.thenReturn(Boolean.FALSE);
final OWLClassA res = uow.mergeDetached(entityA, descriptor);
assertNotNull(res);
assertSame(entityA, res);
verify(storageMock).persist(entityA.getUri(), entityA, descriptor);
}
@Test
void mergeRegistersChangesInUoWChangeSet() throws Exception {
final OWLClassA clone = new OWLClassA();
clone.setUri(entityA.getUri());
// These two attributes will be changed
clone.setStringAttribute("changedStringAttribute");
clone.setTypes(Collections.emptySet());
when(storageMock.contains(entityA.getUri(), OWLClassA.class, descriptor)).thenReturn(true);
when(storageMock.find(any())).thenReturn(entityA);
uow.mergeDetached(clone, descriptor);
assertTrue(uow.hasChanges());
final UnitOfWorkChangeSet changeSet = uow.getUowChangeSet();
final ObjectChangeSet objectChanges = changeSet.getExistingObjectChanges(entityA);
assertNotNull(objectChanges);
assertEquals(2, objectChanges.getChanges().size());
final String strAttName = OWLClassA.getStrAttField().getName();
final Optional<ChangeRecord> rOne = objectChanges.getChanges().stream()
.filter(ch -> ch.getAttribute().getName().equals(strAttName))
.findAny();
assertTrue(rOne.isPresent());
assertEquals(clone.getStringAttribute(), rOne.get().getNewValue());
final String typesAttName = OWLClassA.getTypesField().getName();
final Optional<ChangeRecord> rTwo = objectChanges.getChanges().stream()
.filter(ch -> ch.getAttribute().getName().equals(typesAttName))
.findAny();
assertTrue(rTwo.isPresent());
assertEquals(clone.getTypes(), rTwo.get().getNewValue());
}
@Test
void mergeReturnsInstanceWithReferencesWithOriginalValues() {
final OWLClassA aOriginal = new OWLClassA(entityA.getUri());
aOriginal.setStringAttribute(entityA.getStringAttribute());
aOriginal.setTypes(new HashSet<>(entityA.getTypes()));
final OWLClassD dOriginal = new OWLClassD(entityD.getUri());
dOriginal.setOwlClassA(aOriginal);
entityA.setStringAttribute("differentString");
entityA.getTypes().add(Vocabulary.CLASS_BASE + "addedType");
when(storageMock.contains(entityD.getUri(), OWLClassD.class, descriptor)).thenReturn(true);
final LoadingParameters<OWLClassD> dParams = new LoadingParameters<>(OWLClassD.class, dOriginal.getUri(),
descriptor, true);
when(storageMock.find(dParams)).thenReturn(dOriginal);
final OWLClassD result = uow.mergeDetached(entityD, descriptor);
assertEquals(aOriginal.getStringAttribute(), result.getOwlClassA().getStringAttribute());
assertEquals(aOriginal.getTypes(), result.getOwlClassA().getTypes());
}
@Test
void mergeReturnsInstanceWithUpdatedReferenceWhenItWasChangedInTheDetachedObject() {
final OWLClassA aOriginal = Generators.generateOwlClassAInstance();
final OWLClassD dOriginal = new OWLClassD(entityD.getUri());
dOriginal.setOwlClassA(aOriginal);
when(storageMock.contains(entityD.getUri(), OWLClassD.class, descriptor)).thenReturn(true);
final LoadingParameters<OWLClassD> dParams = new LoadingParameters<>(OWLClassD.class, dOriginal.getUri(),
descriptor, true);
when(storageMock.find(dParams)).thenReturn(dOriginal);
final OWLClassD result = uow.mergeDetached(entityD, descriptor);
assertEquals(entityA.getUri(), result.getOwlClassA().getUri());
assertEquals(entityA.getStringAttribute(), result.getOwlClassA().getStringAttribute());
assertEquals(entityA.getTypes(), result.getOwlClassA().getTypes());
}
@Test
void mergeMergesChangesIntoExistingManagedInstanceAndReturnsIt() {
final OWLClassA managed = (OWLClassA) uow.registerExistingObject(entityA, descriptor);
final OWLClassA detached = new OWLClassA(managed.getUri());
detached.setTypes(new HashSet<>(managed.getTypes()));
final String detachedString = "detachedStringAttribute";
detached.setStringAttribute(detachedString);
when(storageMock.contains(managed.getUri(), OWLClassA.class, descriptor)).thenReturn(true);
final OWLClassA result = uow.mergeDetached(detached, descriptor);
assertSame(managed, result);
assertEquals(detachedString, result.getStringAttribute());
}
@Test
void mergeDoesNotAddChangeSetToUoWChangeSetWhenItContainsNoChanges() throws Exception {
final OWLClassD managed = (OWLClassD) uow.registerExistingObject(entityD, descriptor);
final OWLClassA a2 = new OWLClassA(Generators.createIndividualIdentifier());
a2.setStringAttribute("a2");
final OWLClassA a2Clone = (OWLClassA) uow.registerExistingObject(a2, descriptor);
managed.setOwlClassA(a2Clone);
when(transactionMock.isActive()).thenReturn(true);
when(storageMock.contains(entityD.getUri(), OWLClassD.class, descriptor)).thenReturn(true);
uow.attributeChanged(managed, OWLClassD.getOwlClassAField());
assertTrue(uow.getUowChangeSet().hasChanges());
final ObjectChangeSet originalChangeSet = uow.getUowChangeSet().getExistingObjectChanges(entityD);
assertTrue(originalChangeSet.hasChanges());
final OWLClassD detached = new OWLClassD(managed.getUri());
detached.setOwlClassA(a2Clone);
uow.mergeDetached(detached, descriptor);
assertTrue(uow.getUowChangeSet().hasChanges());
final ObjectChangeSet result = uow.getUowChangeSet().getExistingObjectChanges(entityD);
assertEquals(originalChangeSet, result);
assertTrue(result.hasChanges());
}
@Test
void mergeDetachedThrowsInferredAttributeModifiedWhenInferredAttributeValueWasChanged() {
final OWLClassF entityF = new OWLClassF(Generators.createIndividualIdentifier());
entityF.setSecondStringAttribute("value");
when(storageMock.contains(entityF.getUri(), OWLClassF.class, descriptor)).thenReturn(true);
when(storageMock.find(any(LoadingParameters.class))).thenReturn(entityF);
final OWLClassF toMerge = new OWLClassF(entityF.getUri());
toMerge.setSecondStringAttribute("different-value");
when(transactionMock.isActive()).thenReturn(true);
assertThrows(InferredAttributeModifiedException.class, () -> uow.mergeDetached(toMerge, descriptor));
}
}