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PendingReferenceRegistryTest.java
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PendingReferenceRegistryTest.java
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package cz.cvut.kbss.jsonld.deserialization.reference;
import cz.cvut.kbss.jsonld.environment.Generator;
import cz.cvut.kbss.jsonld.environment.model.Employee;
import cz.cvut.kbss.jsonld.environment.model.GenericObject;
import cz.cvut.kbss.jsonld.exception.UnresolvedReferenceException;
import org.junit.jupiter.api.Test;
import java.lang.reflect.Field;
import java.util.Collections;
import java.util.Map;
import java.util.Set;
import static org.hamcrest.CoreMatchers.hasItem;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.junit.jupiter.api.Assertions.*;
class PendingReferenceRegistryTest {
private final PendingReferenceRegistry sut = new PendingReferenceRegistry();
@Test
void addPendingReferenceRegistersTheSpecifiedPendingReferencesForTargetObjectAndField() throws Exception {
final String iri = Generator.generateUri().toString();
final Object targetObject = new Employee();
final Field targetField = Employee.class.getDeclaredField("employer");
sut.addPendingReference(iri, targetObject, targetField);
final Map<String, Set<PendingReference>> result = getPendingReferences();
assertTrue(result.containsKey(iri));
assertThat(result.get(iri), hasItem(new PendingReference(targetObject, targetField)));
}
private Map<String, Set<PendingReference>> getPendingReferences() throws Exception {
final Field prField = PendingReferenceRegistry.class.getDeclaredField("pendingReferences");
prField.setAccessible(true);
return (Map<String, Set<PendingReference>>) prField.get(sut);
}
@Test
void addPendingReferenceRegistersMultiplePendingReferencesForRepeatedInvocationWithSameIdentifier() throws
Exception {
final String iri = Generator.generateUri().toString();
final Object targetObjectOne = new Employee();
final Field targetFieldOne = Employee.class.getDeclaredField("employer");
final Object targetObjectTwo = new GenericObject();
final Field targetFieldTwo = GenericObject.class.getDeclaredField("memberOf");
sut.addPendingReference(iri, targetObjectOne, targetFieldOne);
sut.addPendingReference(iri, targetObjectTwo, targetFieldTwo);
final Map<String, Set<PendingReference>> result = getPendingReferences();
assertTrue(result.containsKey(iri));
assertEquals(2, result.get(iri).size());
}
@Test
void verifyNoUnresolvedReferencesExistThrowsUnresolvedReferenceExceptionWhenThereExistPendingReferences() throws
Exception {
final Map<String, Set<PendingReference>> result = getPendingReferences();
final String iri = Generator.generateUri().toString();
final Object targetObject = new Employee();
final Field targetField = Employee.class.getDeclaredField("employer");
result.put(iri, Collections.singleton(new PendingReference(targetObject, targetField)));
assertThrows(UnresolvedReferenceException.class, sut::verifyNoUnresolvedReferencesExist);
}
@Test
void verifyNoUnresolvedReferencesExistDoesNothingWhenNoUnresolvedReferencesExist() {
sut.verifyNoUnresolvedReferencesExist();
}
}