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RetrieveFeaturesResponseTest.java
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RetrieveFeaturesResponseTest.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.things.model.signals.commands.query;
import static org.eclipse.ditto.things.model.signals.commands.assertions.ThingCommandAssertions.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.common.HttpStatus;
import org.eclipse.ditto.base.model.headers.DittoHeaders;
import org.eclipse.ditto.base.model.json.FieldType;
import org.eclipse.ditto.json.JsonFactory;
import org.eclipse.ditto.json.JsonObject;
import org.eclipse.ditto.json.assertions.DittoJsonAssertions;
import org.eclipse.ditto.things.model.Features;
import org.eclipse.ditto.things.model.ThingId;
import org.eclipse.ditto.things.model.ThingsModelFactory;
import org.eclipse.ditto.things.model.signals.commands.TestConstants;
import org.eclipse.ditto.things.model.signals.commands.ThingCommandResponse;
import org.junit.Test;
import nl.jqno.equalsverifier.EqualsVerifier;
/**
* Unit test for {@link RetrieveFeaturesResponse}.
*/
public final class RetrieveFeaturesResponseTest {
private static final JsonObject KNOWN_JSON = JsonFactory.newObjectBuilder()
.set(ThingCommandResponse.JsonFields.TYPE, RetrieveFeaturesResponse.TYPE)
.set(ThingCommandResponse.JsonFields.STATUS, HttpStatus.OK.getCode())
.set(ThingCommandResponse.JsonFields.JSON_THING_ID, TestConstants.Thing.THING_ID.toString())
.set(RetrieveFeaturesResponse.JSON_FEATURES, TestConstants.Feature.FEATURES.toJson())
.build();
@Test
public void assertImmutability() {
assertInstancesOf(RetrieveFeaturesResponse.class, areImmutable(),
provided(Features.class, ThingId.class).isAlsoImmutable());
}
@Test
public void testHashCodeAndEquals() {
EqualsVerifier.forClass(RetrieveFeaturesResponse.class)
.withRedefinedSuperclass()
.verify();
}
@Test(expected = NullPointerException.class)
public void tryToCreateInstanceWithNullFeatures() {
RetrieveFeaturesResponse.of(TestConstants.Thing.THING_ID, (Features) null, TestConstants.EMPTY_DITTO_HEADERS);
}
@Test
public void toJsonReturnsExpected() {
final RetrieveFeaturesResponse underTest =
RetrieveFeaturesResponse.of(TestConstants.Thing.THING_ID, TestConstants.Feature.FEATURES,
TestConstants.EMPTY_DITTO_HEADERS);
final JsonObject actualJson = underTest.toJson(FieldType.regularOrSpecial());
DittoJsonAssertions.assertThat(actualJson).isEqualTo(KNOWN_JSON);
}
@Test
public void createInstanceFromValidJson() {
final RetrieveFeaturesResponse underTest =
RetrieveFeaturesResponse.fromJson(KNOWN_JSON.toString(), TestConstants.EMPTY_DITTO_HEADERS);
assertThat(underTest).isNotNull();
assertThat(underTest.getFeatures()).isEqualTo(TestConstants.Feature.FEATURES);
}
@Test
public void createInstanceFromJsonWithNullFeatures() {
final JsonObject inputJson =
KNOWN_JSON.setValue(RetrieveFeaturesResponse.JSON_FEATURES.getPointer(), JsonFactory.nullLiteral());
final RetrieveFeaturesResponse parsedResponse =
RetrieveFeaturesResponse.fromJson(inputJson, DittoHeaders.empty());
assertThat(parsedResponse.getFeatures()).isEqualTo(ThingsModelFactory.nullFeatures());
}
@Test
public void getResourcePathReturnsExpected() {
final RetrieveFeaturesResponse underTest =
RetrieveFeaturesResponse.fromJson(KNOWN_JSON.toString(), TestConstants.EMPTY_DITTO_HEADERS);
assertThat(underTest.getResourcePath()).isEqualTo(JsonFactory.newPointer("/features"));
}
}