/*
* Copyright (c) 2008-2014 MongoDB, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.mongodb.acceptancetest.crud;
import com.mongodb.client.DatabaseTestCase;
import org.bson.Document;
import org.junit.Test;
import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertThat;
/**
* This acceptance test demonstrates the use and expected behaviour of the remove() and removeOne() methods.
*
* @since 3.0
*/
public class DeleteAcceptanceTest extends DatabaseTestCase {
@Test
public void shouldDeleteOnlyOneMatchingDocumentWithDeleteOne() {
// Given
Document firstDocument = new Document("_id", 1).append("a", 1);
collection.insertOne(firstDocument);
Document secondDocument = new Document("_id", 2).append("a", 1);
collection.insertOne(secondDocument);
// When
Document filter = new Document("a", 1);
collection.deleteOne(filter);
// Then
assertThat(collection.count(), is(1L));
}
@Test
public void shouldDeleteAllMatchingDocumentsWithDeleteMany() {
// Given
Document firstDocument = new Document("_id", 1).append("a", 1);
collection.insertOne(firstDocument);
Document secondDocument = new Document("_id", 2).append("a", 1);
collection.insertOne(secondDocument);
// When
Document filter = new Document("a", 1);
collection.deleteMany(filter);
// Then
assertThat(collection.count(), is(0L));
}
}