/*
* Copyright 2008-2015 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;
import org.hamcrest.Matchers;
import org.junit.Before;
import org.junit.Test;
import java.util.Collections;
import static java.util.Arrays.asList;
import static java.util.Collections.singletonList;
import static org.hamcrest.CoreMatchers.instanceOf;
import static org.junit.Assert.assertThat;
public class DBCollectionObjectFactoryTest {
private DBCollectionObjectFactory factory;
@Before
public void setUp() {
factory = new DBCollectionObjectFactory();
}
@Test
public void testDefaultTopLevelClass() {
assertThat(factory.getInstance(), instanceOf(DBObject.class));
}
@Test
public void testDefaultInternalClass() {
assertThat(factory.getInstance(asList("a", "b", "c")), instanceOf(DBObject.class));
}
@Test
public void testTopLevelClassWhenSet() {
factory = factory.update(TopLevelDBObject.class);
assertThat(factory.getInstance(), instanceOf(TopLevelDBObject.class));
}
@Test
public void testEmptyPath() {
factory = factory.update(TopLevelDBObject.class);
assertThat(factory.getInstance(Collections.<String>emptyList()), instanceOf(TopLevelDBObject.class));
}
@Test
public void testInternalClassWhenTopLevelSet() {
factory = factory.update(TopLevelDBObject.class);
assertThat(factory.getInstance(asList("a", "b", "c")), instanceOf(DBObject.class));
}
@Test
public void testSeveralInternalClassesSet() {
factory = factory.update(NestedOneDBObject.class, asList("a", "b"));
factory = factory.update(NestedTwoDBObject.class, asList("a", "c"));
assertThat(factory.getInstance(asList("a", "b")), instanceOf(NestedOneDBObject.class));
assertThat(factory.getInstance(asList("a", "c")), instanceOf(NestedTwoDBObject.class));
}
@Test
public void testReflectionObject() {
factory = factory.update(Tweet.class);
assertThat(factory.getInstance(), instanceOf(Tweet.class));
}
@Test
public void testReflectionNestedObject() {
factory = factory.update(Tweet.class);
assertThat(factory.getInstance(singletonList("Next")), instanceOf(Tweet.class));
}
@Test
public void testThatNullObjectClassRevertsToDefault() {
factory = factory.update(Tweet.class, singletonList("a")).update(null);
assertThat(factory.getInstance(), Matchers.instanceOf(BasicDBObject.class));
assertThat(factory.getInstance(singletonList("a")), instanceOf(Tweet.class));
factory = factory.update(null, singletonList("a"));
assertThat(factory.getInstance(), Matchers.instanceOf(BasicDBObject.class));
assertThat(factory.getInstance(singletonList("a")), instanceOf(BasicDBObject.class));
}
public static class TopLevelDBObject extends BasicDBObject {
private static final long serialVersionUID = 7029929727222305692L;
}
public static class NestedOneDBObject extends BasicDBObject {
private static final long serialVersionUID = -5821458746671670383L;
}
public static class NestedTwoDBObject extends BasicDBObject {
private static final long serialVersionUID = 5243874721805359328L;
}
public static class Tweet extends ReflectionDBObject {
private String message;
private Tweet next;
public Tweet getNext() {
return next;
}
public void setNext(final Tweet next) {
this.next = next;
}
public String getMessage() {
return message;
}
public void setMessage(final String message) {
this.message = message;
}
}
}