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SubjectModifiedTest.java
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SubjectModifiedTest.java
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/*
* Copyright (c) 2017 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.policies.model.signals.events;
import static org.eclipse.ditto.base.model.assertions.DittoBaseAssertions.assertThat;
import static org.mutabilitydetector.unittesting.AllowedReason.provided;
import static org.mutabilitydetector.unittesting.MutabilityAssert.assertInstancesOf;
import static org.mutabilitydetector.unittesting.MutabilityMatchers.areImmutable;
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.policies.model.Label;
import org.eclipse.ditto.policies.model.Subject;
import org.junit.Test;
import nl.jqno.equalsverifier.EqualsVerifier;
/**
* Unit test for {@link SubjectModified}.
*/
public final class SubjectModifiedTest {
private static final JsonObject KNOWN_JSON = JsonFactory.newObjectBuilder()
.set(Event.JsonFields.TIMESTAMP, TestConstants.TIMESTAMP.toString())
.set(Event.JsonFields.TYPE, SubjectModified.TYPE)
.set(EventsourcedEvent.JsonFields.REVISION, TestConstants.Policy.REVISION_NUMBER)
.set(Event.JsonFields.METADATA, TestConstants.METADATA.toJson())
.set(PolicyEvent.JsonFields.POLICY_ID, TestConstants.Policy.POLICY_ID.toString())
.set(SubjectModified.JSON_LABEL, TestConstants.Policy.LABEL.toString())
.set(SubjectModified.JSON_SUBJECT_ID, TestConstants.Policy.SUBJECT.getId().toString())
.set(SubjectModified.JSON_SUBJECT,
TestConstants.Policy.SUBJECT.toJson(FieldType.regularOrSpecial()))
.build();
@Test
public void assertImmutability() {
assertInstancesOf(SubjectModified.class, areImmutable(),
provided(Subject.class, Label.class).isAlsoImmutable());
}
@Test
public void testHashCodeAndEquals() {
EqualsVerifier.forClass(SubjectModified.class)
.withRedefinedSuperclass()
.verify();
}
@Test(expected = NullPointerException.class)
public void tryToCreateInstanceWithNullPolicyId() {
SubjectModified.of(null, TestConstants.Policy.LABEL, TestConstants.Policy.SUBJECT,
TestConstants.Policy.REVISION_NUMBER, TestConstants.TIMESTAMP, TestConstants.EMPTY_DITTO_HEADERS,
TestConstants.METADATA);
}
@Test(expected = NullPointerException.class)
public void tryToCreateInstanceWithNullLabel() {
SubjectModified.of(TestConstants.Policy.POLICY_ID, null, TestConstants.Policy.SUBJECT,
TestConstants.Policy.REVISION_NUMBER, TestConstants.TIMESTAMP, TestConstants.EMPTY_DITTO_HEADERS,
TestConstants.METADATA);
}
@Test(expected = NullPointerException.class)
public void tryToCreateInstanceWithNullSubject() {
SubjectModified.of(TestConstants.Policy.POLICY_ID, TestConstants.Policy.LABEL, null,
TestConstants.Policy.REVISION_NUMBER, TestConstants.TIMESTAMP, TestConstants.EMPTY_DITTO_HEADERS,
TestConstants.METADATA);
}
@Test
public void toJsonReturnsExpected() {
final SubjectModified underTest = SubjectModified.of(TestConstants.Policy.POLICY_ID, TestConstants.Policy.LABEL,
TestConstants.Policy.SUBJECT, TestConstants.Policy.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 SubjectModified underTest =
SubjectModified.fromJson(KNOWN_JSON.toString(), TestConstants.EMPTY_DITTO_HEADERS);
assertThat(underTest).isNotNull();
assertThat((CharSequence) underTest.getPolicyEntityId()).isEqualTo(TestConstants.Policy.POLICY_ID);
assertThat(underTest.getLabel()).isEqualTo(TestConstants.Policy.LABEL);
assertThat(underTest.getSubject()).isEqualTo(TestConstants.Policy.SUBJECT);
}
}