A Spring configuration to use an embedded MongoDB during tests

TestMongoConfig.java

@Configuration
public class TestMongoConfig {
    private static final MongodStarter starter = MongodStarter.getDefaultInstance();

    @SuppressWarnings("SpringJavaAutowiringInspection")
    @Autowired
    private MongoProperties properties;

    @Autowired(required = false)
    private MongoClientOptions options;

    @Bean(destroyMethod = "close")
    public Mongo mongo() throws IOException {
        Net net = mongod().getConfig().net();
        properties.setHost(net.getServerAddress().getHostName());
        properties.setPort(net.getPort());
        return properties.createMongoClient(this.options);
    }

    @Bean(destroyMethod = "stop")
    public MongodProcess mongod() throws IOException {
        return mongodExe().start();
    }

    @Bean(destroyMethod = "stop")
    public MongodExecutable mongodExe() throws IOException {
        return starter.prepare(mongodConfig());
    }

    @Bean
    public IMongodConfig mongodConfig() throws IOException {
        return new MongodConfigBuilder().version(Version.Main.PRODUCTION).build();
    }

}