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PropertiesInstanceContextTest.java
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PropertiesInstanceContextTest.java
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package cz.cvut.kbss.jsonld.deserialization;
import cz.cvut.kbss.jopa.model.annotations.Properties;
import cz.cvut.kbss.jsonld.environment.Vocabulary;
import cz.cvut.kbss.jsonld.environment.model.Person;
import cz.cvut.kbss.jsonld.exception.JsonLdDeserializationException;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import java.lang.reflect.Field;
import java.net.URI;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import static org.hamcrest.CoreMatchers.containsString;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
public class PropertiesInstanceContextTest {
private static final String VALUE = "halsey@unsc.org";
private Field personProperties;
@Rule
public ExpectedException thrown = ExpectedException.none();
@Before
public void setUp() throws Exception {
this.personProperties = Person.class.getDeclaredField("properties");
}
@Test
public void addItemInsertsCollectionIntoPropertiesMapAndAddsValueToIt() {
final Map<String, Set<String>> map = new HashMap<>();
final InstanceContext<Map> ctx = new PropertiesInstanceContext(map, Vocabulary.USERNAME, personProperties);
ctx.addItem(VALUE);
assertTrue(map.containsKey(Vocabulary.USERNAME));
assertEquals(1, map.get(Vocabulary.USERNAME).size());
assertTrue(map.get(Vocabulary.USERNAME).contains(VALUE));
}
@Test
public void addItemReusesPropertyCollectionWhenItIsAlreadyPresentInPropertiesMap() {
final Map<String, Set<String>> map = new HashMap<>();
map.put(Vocabulary.USERNAME, new HashSet<>());
map.get(Vocabulary.USERNAME).add(VALUE);
final InstanceContext<Map> ctx = new PropertiesInstanceContext(map, Vocabulary.USERNAME, personProperties);
final String newValue = "halsey@oni.org";
ctx.addItem(newValue);
assertEquals(2, map.get(Vocabulary.USERNAME).size());
assertTrue(map.get(Vocabulary.USERNAME).contains(VALUE));
assertTrue(map.get(Vocabulary.USERNAME).contains(newValue));
}
@Test
public void addItemPutsSingleValueIntoPropertiesMapWhenMapIsConfiguredAsSingleValued() throws Exception {
final Map<?, ?> map = new HashMap<>();
final InstanceContext<Map> ctx = new PropertiesInstanceContext(map, Vocabulary.USERNAME,
SingleValued.class.getDeclaredField("properties"));
ctx.addItem(VALUE);
assertEquals(VALUE, map.get(Vocabulary.USERNAME));
}
private static class SingleValued {
@Properties
private Map<String, String> properties;
}
@Test
public void addItemConvertsPropertyIdentifierToCorrectType() throws Exception {
final Map<URI, Set<?>> map = new HashMap<>();
final InstanceContext<Map> ctx = new PropertiesInstanceContext(map, Vocabulary.USERNAME,
TypedProperties.class.getDeclaredField("properties"));
ctx.addItem(VALUE);
assertTrue(map.containsKey(URI.create(Vocabulary.USERNAME)));
}
private static class TypedProperties {
@Properties
private Map<URI, Set<?>> properties;
}
@Test
public void addItemInsertsValuesOfCorrectTypes() throws Exception {
final Map<URI, Set<?>> map = new HashMap<>();
final InstanceContext<Map> ctx = new PropertiesInstanceContext(map, Vocabulary.IS_ADMIN,
TypedProperties.class.getDeclaredField("properties"));
ctx.addItem(true);
assertEquals(Boolean.TRUE, map.get(URI.create(Vocabulary.IS_ADMIN)).iterator().next());
}
@Test
public void addItemConvertsValuesToCorrectType() throws Exception {
final Map<String, Set<String>> map = new HashMap<>();
final InstanceContext<Map> ctx = new PropertiesInstanceContext(map, Vocabulary.IS_ADMIN, personProperties);
ctx.addItem(true);
assertEquals(Boolean.TRUE.toString(), map.get(Vocabulary.IS_ADMIN).iterator().next());
}
@Test
public void addItemThrowsExceptionWhenMultipleItemsForSingularPropertyAreAdded() throws Exception {
final Map<String, String> map = new HashMap<>();
final InstanceContext<Map> ctx = new PropertiesInstanceContext(map, Vocabulary.USERNAME,
SingleValued.class.getDeclaredField("properties"));
thrown.expect(JsonLdDeserializationException.class);
thrown.expectMessage(
containsString("Encountered multiple values of property " + Vocabulary.USERNAME));
ctx.addItem(VALUE);
ctx.addItem("halsey@oni.org");
}
}