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ModifyFeaturesTest.java
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ModifyFeaturesTest.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.assertj.core.api.Assertions.assertThatThrownBy;
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.JsonObject;
import org.eclipse.ditto.json.assertions.DittoJsonAssertions;
import org.eclipse.ditto.base.model.headers.DittoHeaders;
import org.eclipse.ditto.base.model.json.FieldType;
import org.eclipse.ditto.base.model.json.Jsonifiable;
import org.eclipse.ditto.things.model.Feature;
import org.eclipse.ditto.things.model.Features;
import org.eclipse.ditto.things.model.ThingId;
import org.eclipse.ditto.things.model.ThingTooLargeException;
import org.eclipse.ditto.things.model.signals.commands.TestConstants;
import org.eclipse.ditto.things.model.signals.commands.ThingCommand;
import org.junit.Ignore;
import org.junit.Test;
import nl.jqno.equalsverifier.EqualsVerifier;
/**
* Unit test for {@link ModifyFeatures}.
*/
public final class ModifyFeaturesTest {
private static final JsonObject KNOWN_JSON = JsonFactory.newObjectBuilder()
.set(ThingCommand.JsonFields.TYPE, ModifyFeatures.TYPE)
.set(ThingCommand.JsonFields.JSON_THING_ID, TestConstants.Thing.THING_ID.toString())
.set(ModifyFeatures.JSON_FEATURES, TestConstants.Feature.FEATURES.toJson(FieldType.regularOrSpecial()))
.build();
@Test
@Ignore("https://github.com/MutabilityDetector/MutabilityDetector/issues/185")
public void assertImmutability() {
assertInstancesOf(ModifyFeatures.class, areImmutable(),
provided(Features.class, ThingId.class).isAlsoImmutable());
}
@Test
public void testHashCodeAndEquals() {
EqualsVerifier.forClass(ModifyFeatures.class)
.withRedefinedSuperclass()
.verify();
}
@Test(expected = NullPointerException.class)
public void tryToCreateInstanceWithNullFeatures() {
ModifyFeatures.of(TestConstants.Thing.THING_ID, null, TestConstants.EMPTY_DITTO_HEADERS);
}
@Test
public void toJsonReturnsExpected() {
final ModifyFeatures underTest = ModifyFeatures.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 ModifyFeatures underTest =
ModifyFeatures.fromJson(KNOWN_JSON.toString(), TestConstants.EMPTY_DITTO_HEADERS);
assertThat(underTest).isNotNull();
Assertions.assertThat((Jsonifiable) underTest.getFeatures()).isEqualTo(TestConstants.Feature.FEATURES);
}
@Test
public void modifyTooLargeFeatures() {
final StringBuilder sb = new StringBuilder();
for(int i=0; i<TestConstants.THING_SIZE_LIMIT_BYTES; i++) {
sb.append('a');
}
final JsonObject largeAttributes = JsonObject.newBuilder()
.set("a", sb.toString())
.build();
final Features features = Features.newBuilder()
.set(Feature.newBuilder().properties(largeAttributes).withId("foo").build())
.build();
assertThatThrownBy(() -> ModifyFeatures.of(ThingId.of("foo", "bar"), features, DittoHeaders.empty()))
.isInstanceOf(ThingTooLargeException.class);
}
}