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ShutdownReasonFactoryTest.java
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ShutdownReasonFactoryTest.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.signals.commands.common;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
import static org.mutabilitydetector.unittesting.MutabilityAssert.assertInstancesOf;
import static org.mutabilitydetector.unittesting.MutabilityMatchers.areImmutable;
import java.util.Arrays;
import java.util.List;
import org.eclipse.ditto.json.JsonArray;
import org.eclipse.ditto.json.JsonFactory;
import org.eclipse.ditto.json.JsonMissingFieldException;
import org.eclipse.ditto.json.JsonObject;
import org.eclipse.ditto.json.JsonValue;
import org.junit.BeforeClass;
import org.junit.Test;
/**
* Unit test for {@link org.eclipse.ditto.signals.commands.common.ShutdownReasonFactory}.
*/
public final class ShutdownReasonFactoryTest {
private static final String NAMESPACE = "com.example.test";
private static final List<String> ENTITY_IDS_TO_PURGE = Arrays.asList("x:y", "a:b", "f:oo");
private static JsonObject purgeNamespaceReasonJson;
private static JsonObject purgeEntitiesReasonJson;
@BeforeClass
public static void initTestConstants() {
purgeNamespaceReasonJson = JsonFactory.newObjectBuilder()
.set(ShutdownReason.JsonFields.TYPE, ShutdownReasonType.Known.PURGE_NAMESPACE.toString())
.set(ShutdownReason.JsonFields.DETAILS, JsonValue.of(NAMESPACE))
.build();
purgeEntitiesReasonJson = JsonFactory.newObjectBuilder()
.set(ShutdownReason.JsonFields.TYPE, ShutdownReasonType.Known.PURGE_ENTITIES.toString())
.set(ShutdownReason.JsonFields.DETAILS, JsonArray.of(ENTITY_IDS_TO_PURGE))
.build();
}
@Test
public void assertImmutability() {
assertInstancesOf(ShutdownReasonFactory.class, areImmutable());
}
@Test
public void getPurgeNamespaceReasonFromJson() {
assertThat(ShutdownReasonFactory.fromJson(purgeNamespaceReasonJson))
.isEqualTo(ShutdownReasonFactory.getPurgeNamespaceReason(NAMESPACE));
}
@Test
public void getPurgeEntitiesReasonFromJson() {
assertThat(ShutdownReasonFactory.fromJson(purgeEntitiesReasonJson))
.isEqualTo(ShutdownReasonFactory.getPurgeEntitiesReason(ENTITY_IDS_TO_PURGE));
}
@Test
public void fromJsonWithoutTypeFails() {
final JsonObject jsonObject = purgeNamespaceReasonJson.toBuilder()
.remove(ShutdownReason.JsonFields.TYPE)
.build();
assertThatExceptionOfType(JsonMissingFieldException.class)
.isThrownBy(() -> ShutdownReasonFactory.fromJson(jsonObject))
.withMessageContaining(ShutdownReason.JsonFields.TYPE.getPointer().toString())
.withNoCause();
}
@Test
public void fromJsonWithUnknownTypeFails() {
final JsonObject shutdownReasonWithUnknownType = purgeEntitiesReasonJson.toBuilder()
.set(ShutdownReason.JsonFields.TYPE, "fooBar")
.build();
assertThatExceptionOfType(IllegalArgumentException.class)
.isThrownBy(() -> ShutdownReasonFactory.fromJson(shutdownReasonWithUnknownType))
.withMessage("Unknown shutdown reason type: <fooBar>.");
}
}