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ThingMergedTest.java
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ThingMergedTest.java
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/*
* Copyright (c) 2020 Contributors to the Eclipse Foundation
*
* See the NOTICE file(s) distributed with this work for additional
* information regarding copyright ownership.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*/
package org.eclipse.ditto.things.model.signals.events;
import static org.eclipse.ditto.json.assertions.DittoJsonAssertions.assertThat;
import static org.mutabilitydetector.unittesting.AllowedReason.provided;
import static org.mutabilitydetector.unittesting.MutabilityAssert.assertInstancesOf;
import static org.mutabilitydetector.unittesting.MutabilityMatchers.areImmutable;
import java.lang.ref.SoftReference;
import org.eclipse.ditto.base.model.json.FieldType;
import org.eclipse.ditto.base.model.signals.events.Event;
import org.eclipse.ditto.base.model.signals.events.EventsourcedEvent;
import org.eclipse.ditto.json.JsonFactory;
import org.eclipse.ditto.json.JsonObject;
import org.eclipse.ditto.json.JsonPointer;
import org.eclipse.ditto.json.JsonValue;
import org.junit.Test;
import nl.jqno.equalsverifier.EqualsVerifier;
/**
* Unit test for {@link ThingMerged}.
*/
public final class ThingMergedTest {
private static final JsonObject KNOWN_JSON = JsonFactory.newObjectBuilder()
.set(Event.JsonFields.TIMESTAMP, TestConstants.TIMESTAMP.toString())
.set(Event.JsonFields.TYPE, ThingMerged.TYPE)
.set(Event.JsonFields.METADATA, TestConstants.METADATA.toJson())
.set(EventsourcedEvent.JsonFields.REVISION, TestConstants.Thing.REVISION_NUMBER)
.set(ThingEvent.JsonFields.THING_ID, TestConstants.Thing.THING_ID.toString())
.set(ThingMerged.JsonFields.JSON_PATH, TestConstants.Thing.ABSOLUTE_LOCATION_ATTRIBUTE_POINTER.toString())
.set(ThingMerged.JsonFields.JSON_VALUE, TestConstants.Thing.LOCATION_ATTRIBUTE_VALUE)
.build();
@Test
public void assertImmutability() {
assertInstancesOf(ThingMerged.class, areImmutable(),
provided(JsonPointer.class, JsonValue.class).isAlsoImmutable());
}
@Test
public void testHashCodeAndEquals() {
final SoftReference<JsonObject> red = new SoftReference<>(JsonFactory.newObject("{\"foo\": 1}"));
final SoftReference<JsonObject> black = new SoftReference<>(JsonFactory.newObject("{\"foo\": 2}"));
EqualsVerifier.forClass(ThingMerged.class)
.withRedefinedSuperclass()
.withPrefabValues(SoftReference.class, red, black)
.verify();
}
@Test
public void toJsonReturnsExpected() {
final ThingMerged underTest =
ThingMerged.of(TestConstants.Thing.THING_ID,
TestConstants.Thing.ABSOLUTE_LOCATION_ATTRIBUTE_POINTER,
TestConstants.Thing.LOCATION_ATTRIBUTE_VALUE,
TestConstants.Thing.REVISION_NUMBER,
TestConstants.TIMESTAMP,
TestConstants.EMPTY_DITTO_HEADERS,
TestConstants.METADATA);
final JsonObject actualJson = underTest.toJson(FieldType.regularOrSpecial());
assertThat(actualJson).isEqualTo(KNOWN_JSON);
}
@Test
public void createInstanceFromValidJson() {
final ThingMerged underTest =
ThingMerged.fromJson(KNOWN_JSON, TestConstants.EMPTY_DITTO_HEADERS);
assertThat(underTest).isNotNull();
assertThat((Object) underTest.getEntityId()).isEqualTo(TestConstants.Thing.THING_ID);
assertThat(underTest.getResourcePath()).isEqualTo(TestConstants.Thing.ABSOLUTE_LOCATION_ATTRIBUTE_POINTER);
assertThat(underTest.getValue()).isEqualTo(TestConstants.Thing.LOCATION_ATTRIBUTE_VALUE);
assertThat(underTest.getMetadata()).contains(TestConstants.METADATA);
assertThat(underTest.getRevision()).isEqualTo(TestConstants.Thing.REVISION_NUMBER);
assertThat(underTest.getTimestamp()).contains(TestConstants.TIMESTAMP);
}
}