SingularPendingReferenceTest.java

/**
 * Copyright (C) 2020 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.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.Organization;
import cz.cvut.kbss.jsonld.environment.model.User;
import cz.cvut.kbss.jsonld.exception.TargetTypeException;
import org.junit.jupiter.api.Test;

import java.lang.reflect.Field;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;

class SingularPendingReferenceTest {

    @Test
    void applySetsSpecifiedReferencedObjectAsTargetFieldValue() throws Exception {
        final Organization referencedObject = Generator.generateOrganization();
        final Employee targetObject = new Employee();
        final Field targetField = Employee.class.getDeclaredField("employer");
        final PendingReference sut = new SingularPendingReference(targetObject, targetField);

        sut.apply(referencedObject);
        assertEquals(referencedObject, targetObject.getEmployer());
    }

    @Test
    void applyThrowsTargetTypeExceptionWhenSpecifiedObjectCannotBeSetOnTargetFieldDueToTypeMismatch() throws Exception {
        final User referencedObject = Generator.generateUser();
        final Employee targetObject = new Employee();
        final Field targetField = Employee.class.getDeclaredField("employer");
        final PendingReference sut = new SingularPendingReference(targetObject, targetField);

        assertThrows(TargetTypeException.class, () -> sut.apply(referencedObject));
    }

}