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SimpleListHandlerTest.java
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SimpleListHandlerTest.java
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/**
* Copyright (C) 2022 Czech Technical University in Prague
*
* 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.
*
* 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.ontodriver.jena.list;
import cz.cvut.kbss.ontodriver.descriptor.SimpleListDescriptor;
import cz.cvut.kbss.ontodriver.descriptor.SimpleListDescriptorImpl;
import cz.cvut.kbss.ontodriver.descriptor.SimpleListValueDescriptor;
import cz.cvut.kbss.ontodriver.jena.environment.Generator;
import cz.cvut.kbss.ontodriver.model.NamedResource;
import org.apache.jena.rdf.model.Property;
import org.apache.jena.rdf.model.Resource;
import org.apache.jena.rdf.model.Statement;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.junit.jupiter.MockitoExtension;
import java.net.URI;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
import static org.apache.jena.rdf.model.ResourceFactory.*;
import static org.mockito.Mockito.verify;
@ExtendWith(MockitoExtension.class)
public class SimpleListHandlerTest extends ListHandlerTestBase<SimpleListDescriptor, SimpleListValueDescriptor> {
@BeforeEach
public void setUp() {
this.handler = new SimpleListHandler(connectorMock);
super.setUp();
}
@Override
List<URI> generateList(String context) {
if (context != null) {
return listUtil.generateSimpleList(context);
} else {
return listUtil.generateSimpleList();
}
}
@Override
SimpleListDescriptor listDescriptor() {
return new SimpleListDescriptorImpl(OWNER, HAS_LIST, HAS_NEXT);
}
@Override
SimpleListValueDescriptor listValueDescriptor() {
return new SimpleListValueDescriptor(OWNER, HAS_LIST, HAS_NEXT);
}
@Test
public void persistListInsertsStatementsCorrespondingToList() {
final List<URI> list = listUtil.generateList();
final SimpleListValueDescriptor descriptor = listValueDescriptor();
list.forEach(item -> descriptor.addValue(NamedResource.create(item)));
handler.persistList(descriptor);
final List<Statement> expected = getExpectedStatementsForPersist(list);
verify(connectorMock).add(expected, null);
}
private List<Statement> getExpectedStatementsForPersist(List<URI> list) {
final List<Statement> expected = new ArrayList<>(list.size());
expected.add(createStatement(OWNER_RESOURCE,
HAS_LIST_PROPERTY, createResource(list.get(0).toString())));
final Property hasNext = createProperty(HAS_NEXT.getIdentifier().toString());
for (int i = 0; i < list.size() - 1; i++) {
expected.add(createStatement(createResource(list.get(i).toString()), hasNext,
createResource(list.get(i + 1).toString())));
}
return expected;
}
@Test
public void persistListWithContextInsertsStatementsCorrespondingToListIntoContext() {
final List<URI> list = listUtil.generateList();
final SimpleListValueDescriptor descriptor = listValueDescriptor();
list.forEach(item -> descriptor.addValue(NamedResource.create(item)));
final URI context = Generator.generateUri();
descriptor.setContext(context);
handler.persistList(descriptor);
final List<Statement> expected = getExpectedStatementsForPersist(list);
verify(connectorMock).add(expected, context.toString());
}
@Test
public void updateListAddsNodeToEnd() {
final List<URI> list = generateList(null);
final URI newItem = Generator.generateUri();
final SimpleListValueDescriptor descriptor = new SimpleListValueDescriptor(OWNER, HAS_LIST, HAS_NEXT);
list.forEach(item -> descriptor.addValue(NamedResource.create(item)));
descriptor.addValue(NamedResource.create(newItem));
handler.updateList(descriptor);
final Statement expectedAdd = createStatement(createResource(list.get(list.size() - 1).toString()),
createProperty(HAS_NEXT.getIdentifier().toString()), createResource(newItem.toString()));
verify(connectorMock).add(Collections.singletonList(expectedAdd), null);
}
@Test
public void updateListRemovesRemainingExistingNodes() {
final List<URI> list = generateList(null);
final SimpleListValueDescriptor descriptor = new SimpleListValueDescriptor(OWNER, HAS_LIST, HAS_NEXT);
final List<URI> update = list.subList(0, list.size() / 2);
update.forEach(item -> descriptor.addValue(NamedResource.create(item)));
handler.updateList(descriptor);
final Property hasNext = createProperty(HAS_NEXT.getIdentifier().toString());
for (int i = update.size() - 1; i < list.size() - 1; i++) {
verify(connectorMock).remove(createResource(list.get(i).toString()), hasNext,
createResource(list.get(i + 1).toString()), null);
}
}
@Test
public void updateReplacesModifiedNode() {
final List<URI> list = generateList(null);
final SimpleListValueDescriptor descriptor = new SimpleListValueDescriptor(OWNER, HAS_LIST, HAS_NEXT);
final List<URI> update = new ArrayList<>(list);
final URI replace = Generator.generateUri();
final int index = Generator.randomInt(list.size() - 1);
update.set(index, replace);
update.forEach(item -> descriptor.addValue(NamedResource.create(item)));
handler.updateList(descriptor);
final Resource previous = createResource(
index > 0 ? list.get(index - 1).toString() : OWNER.getIdentifier().toString());
final Resource removed = createResource(list.get(index).toString());
final Resource next = createResource(list.get(index + 1).toString());
final Property previousLink = index == 0 ? HAS_LIST_PROPERTY : HAS_NEXT_PROPERTY;
verify(connectorMock).remove(previous, previousLink, removed, null);
verify(connectorMock).remove(removed, HAS_NEXT_PROPERTY, next, null);
final List<Statement> expectedAdded = new ArrayList<>(2);
expectedAdded.add(createStatement(previous, previousLink, createResource(replace.toString())));
expectedAdded.add(createStatement(createResource(replace.toString()),
HAS_NEXT_PROPERTY, next));
verify(connectorMock).add(expectedAdded, null);
}
@Test
public void updateClearsOriginalListWhenUpdateIsEmpty() {
final List<URI> list = generateList(null);
final SimpleListValueDescriptor descriptor = new SimpleListValueDescriptor(OWNER, HAS_LIST, HAS_NEXT);
handler.updateList(descriptor);
for (int i = 0; i < list.size(); i++) {
if (i == 0) {
verify(connectorMock).remove(OWNER_RESOURCE,
HAS_LIST_PROPERTY, createResource(list.get(i).toString()), null);
} else {
verify(connectorMock).remove(createResource(list.get(i - 1).toString()),
HAS_NEXT_PROPERTY, createResource(list.get(i).toString()), null);
}
}
}
@Test
public void updatePersistsListWhenOriginalWasEmpty() {
final List<URI> update = IntStream.range(0, 5).mapToObj(i -> Generator.generateUri())
.collect(Collectors.toList());
final SimpleListValueDescriptor descriptor = new SimpleListValueDescriptor(OWNER, HAS_LIST, HAS_NEXT);
update.forEach(v -> descriptor.addValue(NamedResource.create(v)));
handler.updateList(descriptor);
final List<Statement> expectedAdded = new ArrayList<>(update.size());
expectedAdded.add(createStatement(OWNER_RESOURCE, HAS_LIST_PROPERTY, createResource(update.get(0).toString())));
for (int i = 0; i < update.size() - 1; i++) {
expectedAdded.add(createStatement(createResource(update.get(i).toString()), HAS_NEXT_PROPERTY,
createResource(update.get(i + 1).toString())));
}
verify(connectorMock).add(expectedAdded, null);
}
@Test
public void updateListWorksInContext() {
final URI context = Generator.generateUri();
final List<URI> list = generateList(context.toString());
final SimpleListValueDescriptor descriptor = new SimpleListValueDescriptor(OWNER, HAS_LIST, HAS_NEXT);
descriptor.setContext(context);
final URI firstReplaced = Generator.generateUri();
descriptor.addValue(NamedResource.create(firstReplaced));
list.subList(1, list.size()).forEach(item -> descriptor.addValue(NamedResource.create(item)));
final URI added = Generator.generateUri();
descriptor.addValue(NamedResource.create(added));
handler.updateList(descriptor);
verify(connectorMock)
.remove(OWNER_RESOURCE, HAS_LIST_PROPERTY, createResource(list.get(0).toString()), context.toString());
verify(connectorMock).remove(createResource(list.get(0).toString()), HAS_NEXT_PROPERTY,
createResource(list.get(1).toString()), context.toString());
verify(connectorMock).add(Arrays.asList(
createStatement(OWNER_RESOURCE, HAS_LIST_PROPERTY, createResource(firstReplaced.toString())),
createStatement(createResource(firstReplaced.toString()), HAS_NEXT_PROPERTY,
createResource(list.get(1).toString()))), context.toString());
verify(connectorMock).add(Collections
.singletonList(createStatement(createResource(list.get(list.size() - 1).toString()), HAS_NEXT_PROPERTY,
createProperty(added.toString()))), context.toString());
}
}