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MongoPersistenceOperationsSelectionTest.java
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MongoPersistenceOperationsSelectionTest.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.services.utils.persistence.mongo.ops.eventsource;
import static org.assertj.core.api.Assertions.assertThat;
import static org.mutabilitydetector.unittesting.AllowedReason.assumingFields;
import static org.mutabilitydetector.unittesting.MutabilityAssert.assertInstancesOf;
import static org.mutabilitydetector.unittesting.MutabilityMatchers.areImmutable;
import org.bson.BsonString;
import org.bson.Document;
import org.junit.BeforeClass;
import org.junit.Test;
import nl.jqno.equalsverifier.EqualsVerifier;
/**
* Unit test for {@link MongoPersistenceOperationsSelection}.
*/
public final class MongoPersistenceOperationsSelectionTest {
private static final String COLLECTION_NAME = "thingsMetadata";
private static Document namespaceFilter;
private static Document emptyFilter;
@BeforeClass
public static void initTestConstants() {
namespaceFilter = new Document("_namespace", new BsonString("com.example.test"));
emptyFilter = new Document();
}
@Test
public void assertImmutability() {
assertInstancesOf(MongoPersistenceOperationsSelection.class,
areImmutable(),
assumingFields("filter").areNotModifiedAndDoNotEscape());
}
@Test
public void testHashCodeAndEquals() {
EqualsVerifier.forClass(MongoPersistenceOperationsSelection.class)
.usingGetClass()
.verify();
}
@Test
public void getCollectionNameReturnsExpected() {
final MongoPersistenceOperationsSelection
underTest = MongoPersistenceOperationsSelection.of(COLLECTION_NAME, namespaceFilter);
assertThat(underTest.getCollectionName()).isEqualTo(COLLECTION_NAME);
}
@Test
public void getFilterReturnsExpected() {
final MongoPersistenceOperationsSelection
underTest = MongoPersistenceOperationsSelection.of(COLLECTION_NAME, namespaceFilter);
assertThat(underTest.getFilter()).isEqualTo(namespaceFilter).isNotSameAs(namespaceFilter);
}
@Test
public void emptyFilterIsEntireCollection() {
final MongoPersistenceOperationsSelection
underTest = MongoPersistenceOperationsSelection.of(COLLECTION_NAME, emptyFilter);
assertThat(underTest.isEntireCollection()).isTrue();
}
@Test
public void nonEmptyFilterIsNotEntireCollection() {
final MongoPersistenceOperationsSelection
underTest = MongoPersistenceOperationsSelection.of(COLLECTION_NAME, namespaceFilter);
assertThat(underTest.isEntireCollection()).isFalse();
}
@Test
public void toStringOfSelectionWithFilterReturnsExpected() {
final MongoPersistenceOperationsSelection
underTest = MongoPersistenceOperationsSelection.of(COLLECTION_NAME, namespaceFilter);
assertThat(underTest.toString()).isEqualTo(COLLECTION_NAME + " (filtered: " + namespaceFilter + ")");
}
@Test
public void toStringOfSelectionWithoutFilterReturnsExpected() {
final MongoPersistenceOperationsSelection
underTest = MongoPersistenceOperationsSelection.of(COLLECTION_NAME, emptyFilter);
assertThat(underTest.toString()).isEqualTo(COLLECTION_NAME + " (complete)");
}
}