/*
* Copyright (C) 2011 Benoit GUEROUT <bguerout at gmail dot com> and Yves AMSELLEM <amsellem dot yves at gmail dot com>
*
* 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 org.jongo;
import com.mongodb.ReadPreference;
import org.bson.types.ObjectId;
import org.jongo.marshall.MarshallingException;
import org.jongo.model.Coordinate;
import org.jongo.model.ExposableFriend;
import org.jongo.model.Friend;
import org.jongo.util.ErrorObject;
import org.jongo.util.JongoTestCase;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import java.util.Iterator;
import static junit.framework.Assert.fail;
import static org.assertj.core.api.Assertions.assertThat;
import static org.jongo.Oid.withOid;
public class FindTest extends JongoTestCase {
private MongoCollection collection;
@Before
public void setUp() throws Exception {
collection = createEmptyCollection("friends");
}
@After
public void tearDown() throws Exception {
dropCollection("friends");
}
@Test
public void canFind() throws Exception {
/* given */
Friend friend = new Friend(new ObjectId(), "John");
collection.save(friend);
/* when */
Iterator<Friend> friends = collection.find("{name:'John'}").as(Friend.class);
/* then */
assertThat(friends.hasNext()).isTrue();
assertThat(friends.next().getName()).isEqualTo("John");
assertThat(friends.hasNext()).isFalse();
}
@Test
public void canFindAndCount() throws Exception {
Friend friend = new Friend(new ObjectId(), "John");
collection.save(friend);
MongoCursor<Friend> friends = collection.find("{name:'John'}").as(Friend.class);
int nbResults = friends.count();
assertThat(nbResults).isEqualTo(1);
}
@Test
public void shouldFailWhenUnableToUnmarshallResult() throws Exception {
/* given */
collection.insert("{error: 'NotaDate'}");
/* when */
Iterator<ErrorObject> results = collection.find().as(ErrorObject.class);
try {
results.next();
fail();
} catch (MarshallingException e) {
assertThat(e.getMessage()).contains(" \"error\" : \"NotaDate\"");
}
}
@Test
public void canFindWithEmptySelector() throws Exception {
/* given */
collection.insert("{name:'John'}");
collection.insert("{name:'Smith'}");
collection.insert("{name:'Peter'}");
/* when */
MongoCursor<Friend> friends = collection.find().as(Friend.class);
/* then */
assertThat(friends.hasNext()).isTrue();
for (Friend friend : friends) {
assertThat(friend.getName()).isIn("John", "Smith", "Peter");
}
}
@Test
public void canFindUsingSubProperty() throws Exception {
/* given */
collection.save(new Friend("John", new Coordinate(2, 31)));
/* when */
Iterator<Friend> results = collection.find("{'coordinate.lat':2}").as(Friend.class).iterator();
/* then */
assertThat(results.next().getCoordinate().lat).isEqualTo(2);
assertThat(results.hasNext()).isFalse();
}
@Test
public void canFindWithOid() throws Exception {
/* given */
ObjectId id = new ObjectId();
Friend john = new Friend(id, "John");
collection.save(john);
Iterator<Friend> friends = collection.find("{_id:{$oid:#}}", id.toString()).as(Friend.class);
/* then */
assertThat(friends.hasNext()).isTrue();
assertThat(friends.next().getId()).isEqualTo(id);
}
@Test(expected = IllegalArgumentException.class)
public void shouldRejectNullObjectId() throws Exception {
collection.findOne((ObjectId) null);
}
@Test
public void canFindWithStringAsObjectId() {
/* given */
String id = ObjectId.get().toString();
ExposableFriend friend = new ExposableFriend(id, "John");
collection.save(friend);
/* when */
Iterator<ExposableFriend> friends = collection.find(withOid(friend.getId())).as(ExposableFriend.class);
/* then */
ExposableFriend john = friends.next();
assertThat(john.getId()).isEqualTo(id);
assertThat(john.getName()).isEqualTo("John");
assertThat(friends.hasNext()).isFalse();
}
@Test
public void canFindWithReadPreference() throws Exception {
/* given */
Friend friend = new Friend(new ObjectId(), "John");
collection.save(friend);
/* when */
MongoCursor<Friend> friends = collection.withReadPreference(ReadPreference.primaryPreferred()).find("{name:'John'}").as(Friend.class);
/* then */
assertThat(friends.hasNext()).isTrue();
assertThat(friends.next().getName()).isEqualTo("John");
assertThat(friends.hasNext()).isFalse();
// warning: we cannot check that ReadPreference is really used by driver, this unit test only checks the API
}
}