JsonLdDeserializerTest.java

/**
 * Copyright (C) 2020 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;

import cz.cvut.kbss.jopa.model.annotations.OWLClass;
import cz.cvut.kbss.jsonld.ConfigParam;
import cz.cvut.kbss.jsonld.Configuration;
import cz.cvut.kbss.jsonld.deserialization.util.TargetClassResolver;
import cz.cvut.kbss.jsonld.deserialization.util.TypeMap;
import cz.cvut.kbss.jsonld.environment.Vocabulary;
import cz.cvut.kbss.jsonld.environment.model.Study;
import cz.cvut.kbss.jsonld.environment.model.StudyWithNamespaces;
import cz.cvut.kbss.jsonld.environment.model.User;
import cz.cvut.kbss.jsonld.exception.JsonLdDeserializationException;
import org.junit.jupiter.api.Test;

import java.lang.reflect.Field;

import static cz.cvut.kbss.jsonld.environment.TestUtil.readAndExpand;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.hasItem;
import static org.junit.jupiter.api.Assertions.*;

class JsonLdDeserializerTest {

    @Test
    void constructionScansClasspathAndBuildsTypeMap() throws Exception {
        final Configuration config = new Configuration();
        config.set(ConfigParam.SCAN_PACKAGE, "cz.cvut.kbss.jsonld");
        final JsonLdDeserializer deserializer = JsonLdDeserializer.createExpandedDeserializer(config);
        assertFalse(typeMap(deserializer).get(Vocabulary.STUDY).isEmpty());
        assertTrue(typeMap(deserializer).get(Vocabulary.STUDY).contains(Study.class));
    }

    private TypeMap typeMap(JsonLdDeserializer deserializer) throws Exception {
        final Field typeMapField = TargetClassResolver.class.getDeclaredField("typeMap");
        typeMapField.setAccessible(true);
        return (TypeMap) typeMapField.get(deserializer.classResolver);
    }

    @Test
    void constructionScansClasspathWithSpecifiedPackageAndBuildsTypeMap() throws Exception {
        final Configuration config = new Configuration();
        config.set(ConfigParam.SCAN_PACKAGE, "cz.cvut.kbss.jsonld.deserialization");
        final JsonLdDeserializer deserializer = JsonLdDeserializer.createExpandedDeserializer(config);
        assertTrue(typeMap(deserializer).get(Vocabulary.GENERIC_MEMBER).isEmpty());
        assertTrue(typeMap(deserializer).get(Vocabulary.AGENT).contains(TestClass.class));
    }

    @OWLClass(iri = Vocabulary.AGENT)
    private static class TestClass {
    }

    @Test
    void deserializationThrowsJsonLdDeserializationExceptionWhenInputIsNotValidJsonLd() throws Exception {
        final Configuration config = new Configuration();
        config.set(ConfigParam.SCAN_PACKAGE, "cz.cvut.kbss.jsonld");
        final JsonLdDeserializer deserializer = JsonLdDeserializer.createExpandedDeserializer(config);
        final Object input = readAndExpand("invalidJsonLd.json");
        assertThrows(JsonLdDeserializationException.class, () -> deserializer.deserialize(input, User.class));
    }

    @Test
    void constructionExpandsCompactIrisWhenBuildingTypeMap() throws Exception {
        final Configuration config = new Configuration();
        config.set(ConfigParam.SCAN_PACKAGE, "cz.cvut.kbss.jsonld.environment.model");
        final JsonLdDeserializer deserializer = JsonLdDeserializer.createExpandedDeserializer(config);
        assertFalse(typeMap(deserializer).get(Vocabulary.STUDY).isEmpty());
        assertThat(typeMap(deserializer).get(Vocabulary.STUDY), hasItem(StudyWithNamespaces.class));
    }
}