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DeleteAttributeTest.java
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DeleteAttributeTest.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.modify;
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.assertj.core.api.Assertions;
import org.eclipse.ditto.json.JsonFactory;
import org.eclipse.ditto.json.JsonKeyInvalidException;
import org.eclipse.ditto.json.JsonObject;
import org.eclipse.ditto.json.JsonPointer;
import org.eclipse.ditto.json.assertions.DittoJsonAssertions;
import org.eclipse.ditto.base.model.json.FieldType;
import org.eclipse.ditto.things.model.ThingId;
import org.eclipse.ditto.things.model.signals.commands.TestConstants;
import org.eclipse.ditto.things.model.signals.commands.ThingCommand;
import org.eclipse.ditto.things.model.signals.commands.exceptions.AttributePointerInvalidException;
import org.junit.Ignore;
import org.junit.Test;
import nl.jqno.equalsverifier.EqualsVerifier;
/**
* Unit test for {@link DeleteAttribute}.
*/
public final class DeleteAttributeTest {
private static final JsonObject KNOWN_JSON = JsonFactory.newObjectBuilder()
.set(ThingCommand.JsonFields.TYPE, DeleteAttribute.TYPE)
.set(ThingCommand.JsonFields.JSON_THING_ID, TestConstants.Thing.THING_ID.toString())
.set(DeleteAttribute.JSON_ATTRIBUTE, TestConstants.Pointer.VALID_JSON_POINTER.toString())
.build();
@Test
@Ignore("https://github.com/MutabilityDetector/MutabilityDetector/issues/185")
public void assertImmutability() {
assertInstancesOf(DeleteAttribute.class, areImmutable(),
provided(JsonPointer.class, ThingId.class).isAlsoImmutable());
}
@Test
public void testHashCodeAndEquals() {
EqualsVerifier.forClass(DeleteAttribute.class)
.withRedefinedSuperclass()
.verify();
}
@Test(expected = NullPointerException.class)
public void tryToCreateInstanceWithNullThingId() {
DeleteAttribute.of(null, TestConstants.Pointer.VALID_JSON_POINTER, TestConstants.EMPTY_DITTO_HEADERS);
}
@Test(expected = NullPointerException.class)
public void tryToCreateInstanceWithNullJsonPointers() {
DeleteAttribute.of(TestConstants.Thing.THING_ID, null, TestConstants.EMPTY_DITTO_HEADERS);
}
@Test
public void createInstanceWithValidArguments() {
final DeleteAttribute underTest = DeleteAttribute.of(TestConstants.Thing.THING_ID,
TestConstants.Pointer.VALID_JSON_POINTER, TestConstants.EMPTY_DITTO_HEADERS);
assertThat(underTest).isNotNull();
assertThat(underTest.getAttributePointer()).isEqualTo(TestConstants.Pointer.VALID_JSON_POINTER);
}
@Test(expected = JsonKeyInvalidException.class)
public void createInstanceWithInvalidArguments() {
DeleteAttribute.of(TestConstants.Thing.THING_ID, TestConstants.Pointer.INVALID_JSON_POINTER,
TestConstants.EMPTY_DITTO_HEADERS);
}
@Test(expected = AttributePointerInvalidException.class)
public void createInstanceWithEmptyPointer() {
DeleteAttribute.of(TestConstants.Thing.THING_ID, TestConstants.Pointer.EMPTY_JSON_POINTER, TestConstants.EMPTY_DITTO_HEADERS);
}
@Test
public void toJsonReturnsExpected() {
final DeleteAttribute underTest = DeleteAttribute.of(TestConstants.Thing.THING_ID,
TestConstants.Pointer.VALID_JSON_POINTER, TestConstants.EMPTY_DITTO_HEADERS);
final JsonObject actualJson = underTest.toJson(FieldType.regularOrSpecial());
DittoJsonAssertions.assertThat(actualJson).isEqualTo(KNOWN_JSON);
}
@Test
public void createInstanceFromValidJson() {
final DeleteAttribute underTest =
DeleteAttribute.fromJson(KNOWN_JSON.toString(), TestConstants.EMPTY_DITTO_HEADERS);
assertThat(underTest).isNotNull();
Assertions.assertThat((CharSequence) underTest.getEntityId()).isEqualTo(TestConstants.Thing.THING_ID);
assertThat(underTest.getAttributePointer()).isEqualTo(TestConstants.Pointer.VALID_JSON_POINTER);
}
}