java - How do you configure Embedded MongDB for integration testing in a Spring Boot application? -

i have simple spring boot application exposes small rest api , retrieves data instance of mongodb. queries mongodb instance go through spring data based repository. key bits of code below.

// main application class @enableautoconfiguration(exclude={mongoautoconfiguration.class, mongodataautoconfiguration.class}) @componentscan @import(mongoconfig.class) public class productapplication {     public static void main(string[] args) {         springapplication.run(productapplication.class, args);     } } 

// product repository spring data public interface productrepository extends mongorepository<product, string> {      page<product> findall(pageable pageable);      optional<product> findbylinenumber(string linenumber); } 

// configuration "live" connections @configuration public class mongoconfig {      @value("${product.mongo.host}")     private string mongohost;      @value("${product.mongo.port}")     private string mongoport;      @value("${product.mongo.database}")     private string mongodatabase;      @bean(name="mongoclient")     public mongoclient mongoclient() throws ioexception {         return new mongoclient(mongohost, integer.parseint(mongoport));     }      @autowired     @bean(name="mongodbfactory")     public mongodbfactory mongodbfactory(mongoclient mongoclient) {         return new simplemongodbfactory(mongoclient, mongodatabase);     }      @autowired     @bean(name="mongotemplate")     public mongotemplate mongotemplate(mongoclient mongoclient) {         return new mongotemplate(mongoclient, mongodatabase);     } } 

@configuration @enablemongorepositories public class embeddedmongoconfig {      private static final string db_name = "integrationtest";     private static final int db_port = 12345;     private static final string db_host = "localhost";     private static final string db_collection = "products";      private mongodexecutable mongodexecutable = null;      @bean(name="mongoclient")     public mongoclient mongoclient() throws ioexception {         // lots of calls here de.flapdoodle.embed.mongo code base          // create embedded db , insert json data     }      @autowired     @bean(name="mongodbfactory")     public mongodbfactory mongodbfactory(mongoclient mongoclient) {         return new simplemongodbfactory(mongoclient, db_name);     }      @autowired     @bean(name="mongotemplate")     public mongotemplate mongotemplate(mongoclient mongoclient) {         return new mongotemplate(mongoclient, db_name);     }      @predestroy     public void shutdownembeddedmongodb() {         if (this.mongodexecutable != null) {             this.mongodexecutable.stop();         }     } } 

@runwith(springjunit4classrunner.class) @springapplicationconfiguration(classes = testproductapplication.class) @integrationtest @webappconfiguration public class wtrproductapplicationtests {      @test     public void contextloads() {         // tests empty     }  } 

@enableautoconfiguration(exclude={mongoautoconfiguration.class, mongodataautoconfiguration.class}) @componentscan @import(embeddedmongoconfig.class) public class testproductapplication {      public static void main(string[] args) {         springapplication.run(testproductapplication.class, args);     } } 

so idea here have integration tests (empty @ moment) connect embedded mongo instance , not "live" one. however, doesn't work. can see tests connecting "live" instance of mongo, , if shut down build fails still attempting connect live instance of mongo. know why is? how tests connect embedded instance?

this works me.

test class:

    @runwith(springjunit4classrunner.class)     @springapplicationconfiguration(classes = {         application.class,          testmongoconfig.class // <--- don't forget     })     public class gamerepositorytest {          @autowired         private gamerepository gamerepository;          @test         public void shouldcreategame() {             game game = new game(null, "far cry 3");             game gamecreated = gamerepository.save(game);             assertequals(gamecreated.getgameid(), gamecreated.getgameid());             assertequals(game.getname(), gamecreated.getname());         }      }  

simple mongodb repository:

public interface gamerepository extends mongorepository<game, string>     {      game findbyname(string name); } 

mongodb test configuration:

import com.mongodb.mongo; import com.mongodb.mongoclientoptions; 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 org.springframework.beans.factory.annotation.autowired; import org.springframework.boot.autoconfigure.mongo.mongoproperties; import org.springframework.context.annotation.bean; import org.springframework.context.annotation.configuration;  import java.io.ioexception;  @configuration public class testmongoconfig {      @autowired     private mongoproperties properties;      @autowired(required = false)     private mongoclientoptions options;      @bean(destroymethod = "close")     public mongo mongo(mongodprocess mongodprocess) throws ioexception {         net net = mongodprocess.getconfig().net();         properties.sethost(net.getserveraddress().gethostname());         properties.setport(net.getport());         return properties.createmongoclient(this.options);     }      @bean(destroymethod = "stop")     public mongodprocess mongodprocess(mongodexecutable mongodexecutable) throws ioexception {         return mongodexecutable.start();     }      @bean(destroymethod = "stop")     public mongodexecutable mongodexecutable(mongodstarter mongodstarter, imongodconfig imongodconfig) throws ioexception {         return mongodstarter.prepare(imongodconfig);     }      @bean     public imongodconfig mongodconfig() throws ioexception {         return new mongodconfigbuilder().version(version.main.production).build();     }      @bean     public mongodstarter mongodstarter() {         return mongodstarter.getdefaultinstance();     }  } 

pom.xml

        <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>1.48.0</version>             <scope>test</scope>         </dependency>