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TargetClassResolverTest.java
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TargetClassResolverTest.java
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/**
* Copyright (C) 2017 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.jsonld.deserialization.util;
import cz.cvut.kbss.jopa.model.annotations.OWLClass;
import cz.cvut.kbss.jsonld.environment.TestUtil;
import cz.cvut.kbss.jsonld.environment.Vocabulary;
import cz.cvut.kbss.jsonld.environment.model.Employee;
import cz.cvut.kbss.jsonld.environment.model.Organization;
import cz.cvut.kbss.jsonld.environment.model.Person;
import cz.cvut.kbss.jsonld.exception.AmbiguousTargetTypeException;
import cz.cvut.kbss.jsonld.exception.TargetTypeException;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import static org.hamcrest.CoreMatchers.containsString;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;
class TargetClassResolverTest {
private TypeMap typeMap;
private TargetClassResolver resolver;
@BeforeEach
void setUp() {
this.typeMap = TestUtil.getDefaultTypeMap();
this.resolver = new TargetClassResolver(typeMap);
}
@Test
void getTargetClassReturnsExpectedClassWhenSingleTypeMatchesOneClass() {
assertEquals(Employee.class,
resolver.getTargetClass(Employee.class, Collections.singletonList(Vocabulary.EMPLOYEE)));
}
@Test
void getTargetClassFiltersOutNonSubtypesOfExpectedClass() {
typeMap.register(Vocabulary.PERSON, Organization.class);
final Class<?> result = resolver.getTargetClass(Person.class, Collections.singletonList(Vocabulary.PERSON));
assertEquals(Person.class, result);
}
@Test
void getTargetClassThrowsTargetTypeExceptionWhenMatchingTargetCandidateIsNotFound() {
final List<String> types = Collections.singletonList(Vocabulary.ORGANIZATION);
final TargetTypeException result = assertThrows(TargetTypeException.class,
() -> resolver.getTargetClass(Person.class, types));
assertThat(result.getMessage(),
containsString("Neither " + Person.class + " nor any of its subclasses matches the types " + types));
}
@Test
void getTargetClassReturnsExpectedClassWhenTypeMatchesAndItIsNotInTypeMap() {
final Class<?> result = resolver
.getTargetClass(NonMappedPerson.class, Collections.singletonList(Vocabulary.PERSON));
assertEquals(NonMappedPerson.class, result);
}
@OWLClass(iri = Vocabulary.PERSON)
private static class NonMappedPerson {
}
@Test
void getTargetClassResolvesMostSpecificMatchingSubClass() {
final Class<?> result = resolver
.getTargetClass(Person.class, Arrays.asList(Vocabulary.PERSON, Vocabulary.EMPLOYEE, Vocabulary.USER));
assertEquals(Employee.class, result);
}
@Test
void getTargetClassThrowsAmbiguousTypeExceptionWhenMultipleTargetClassCandidatesAreFound() {
typeMap.register(Vocabulary.AGENT, MostSpecific.class);
final List<String> types = Arrays.asList(Vocabulary.PERSON, Vocabulary.USER, Vocabulary.AGENT);
final AmbiguousTargetTypeException result = assertThrows(AmbiguousTargetTypeException.class,
() -> resolver.getTargetClass(Person.class, types));
assertThat(result.getMessage(),
containsString("Object with types " + types + " matches multiple equivalent target classes: "));
}
@OWLClass(iri = Vocabulary.AGENT)
private static class MostSpecific extends Person {
}
}