[java] 통합 테스트 실행시 포함 된 MongoDB

다음 은 @rozky 의 승인 된 답변 의 업데이트 된 (2019 년) 버전입니다 (Mongo 및 Embedded MongoDB 라이브러리에서 많은 부분이 변경되었습니다).

package com.example.mongo;

import com.mongodb.BasicDBObject;
import com.mongodb.MongoClient;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoDatabase;
import de.flapdoodle.embed.mongo.MongodExecutable;
import de.flapdoodle.embed.mongo.MongodProcess;
import de.flapdoodle.embed.mongo.MongodStarter;
import de.flapdoodle.embed.mongo.config.IMongodConfig;
import de.flapdoodle.embed.mongo.config.MongodConfigBuilder;
import de.flapdoodle.embed.mongo.config.Net;
import de.flapdoodle.embed.mongo.distribution.Version;
import de.flapdoodle.embed.process.runtime.Network;
import java.util.Date;
import org.junit.After;
import static org.junit.Assert.*;
import org.junit.Before;
import org.junit.Test;

public class EmbeddedMongoTest
{
    private static final String DATABASE_NAME = "embedded";

    private MongodExecutable mongodExe;
    private MongodProcess mongod;
    private MongoClient mongo;

    @Before
    public void beforeEach() throws Exception {
        MongodStarter starter = MongodStarter.getDefaultInstance();
        String bindIp = "localhost";
        int port = 12345;
        IMongodConfig mongodConfig = new MongodConfigBuilder()
        .version(Version.Main.PRODUCTION)
        .net(new Net(bindIp, port, Network.localhostIsIPv6()))
        .build();
        this.mongodExe = starter.prepare(mongodConfig);
        this.mongod = mongodExe.start();
        this.mongo = new MongoClient(bindIp, port);
    }

    @After
    public void afterEach() throws Exception {
        if (this.mongod != null) {
            this.mongod.stop();
            this.mongodExe.stop();
        }
    }

    @Test
    public void shouldCreateNewObjectInEmbeddedMongoDb() {
        // given
        MongoDatabase db = mongo.getDatabase(DATABASE_NAME);
        db.createCollection("testCollection");
        MongoCollection<BasicDBObject> col = db.getCollection("testCollection", BasicDBObject.class);

        // when
        col.insertOne(new BasicDBObject("testDoc", new Date()));

        // then
        assertEquals(1L, col.countDocuments());
    }

}

답변

public class EmbeddedMongoTest {
    private static final String DATABASE_NAME = "embedded";

    private MongodExecutable mongodExe;
    private MongodProcess mongod;
    private Mongo mongo;

    @Before
    public void beforeEach() throws Exception {
        MongoDBRuntime runtime = MongoDBRuntime.getDefaultInstance();
        mongodExe = runtime.prepare(new MongodConfig(Version.V2_3_0, 12345, Network.localhostIsIPv6()));
        mongod = mongodExe.start();
        mongo = new Mongo("localhost", 12345);
    }

    @After
    public void afterEach() throws Exception {
        if (this.mongod != null) {
            this.mongod.stop();
            this.mongodExe.stop();
        }
    }

    @Test
    public void shouldCreateNewObjectInEmbeddedMongoDb() {
        // given
        DB db = mongo.getDB(DATABASE_NAME);
        DBCollection col = db.createCollection("testCollection", new BasicDBObject());

        // when
        col.save(new BasicDBObject("testDoc", new Date()));

        // then
        assertThat(col.getCount(), Matchers.is(1L));
    }
}

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.3.2.RELEASE</version>
</parent>
 ...
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-mongodb</artifactId>
    </dependency>
    <dependency>
        <groupId>de.flapdoodle.embed</groupId>
        <artifactId>de.flapdoodle.embed.mongo</artifactId>
        <version>${embedded-mongo.version}</version>
    </dependency>

@Configuration
@EnableAutoConfiguration(exclude = { EmbeddedMongoAutoConfiguration.class })
public class MongoConfig{
}