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UnmodifiableExternalMessageTest.java
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UnmodifiableExternalMessageTest.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.connectivity.api;
import java.nio.ByteBuffer;
import org.eclipse.ditto.base.model.auth.AuthorizationContext;
import org.eclipse.ditto.base.model.headers.DittoHeaders;
import org.eclipse.ditto.connectivity.model.EnforcementFilter;
import org.eclipse.ditto.connectivity.model.HeaderMapping;
import org.eclipse.ditto.connectivity.model.PayloadMapping;
import org.eclipse.ditto.connectivity.model.Source;
import org.eclipse.ditto.protocol.Adaptable;
import org.eclipse.ditto.protocol.TopicPath;
import org.junit.Test;
import org.mutabilitydetector.unittesting.AllowedReason;
import org.mutabilitydetector.unittesting.MutabilityAssert;
import org.mutabilitydetector.unittesting.MutabilityMatchers;
import nl.jqno.equalsverifier.EqualsVerifier;
/**
* Unit test for {@link UnmodifiableExternalMessage}.
*/
public final class UnmodifiableExternalMessageTest {
@Test
public void assertImmutability() {
// The field "bytePayload" is mutable.
// Assume the user never modifies it.
MutabilityAssert.assertInstancesOf(UnmodifiableExternalMessage.class, MutabilityMatchers.areImmutable(),
AllowedReason.provided(DittoHeaders.class).isAlsoImmutable(),
AllowedReason.assumingFields("bytePayload").areNotModifiedAndDoNotEscape(),
AllowedReason.provided(ByteBuffer.class, AuthorizationContext.class, Adaptable.class, Source.class,
EnforcementFilter.class, HeaderMapping.class, PayloadMapping.class, TopicPath.class)
.areAlsoImmutable());
}
@Test
public void testHashCodeAndEquals() {
EqualsVerifier.forClass(UnmodifiableExternalMessage.class)
.withPrefabValues(ByteBuffer.class,
ByteBuffer.wrap("red".getBytes()),
ByteBuffer.wrap("black".getBytes()))
.usingGetClass()
.verify();
}
}