Mongodb embedded with credential or authenticate

I use mongodb embbeded for unit test or manipulate real database. i have some problrm that my service using authentication for it.

this is, how my service access database mongodb://"+this.usermongo+":"+this.passmongo+"@"+this.host+":"+this.port

            <groupId>de.flapdoodle.embed</groupId>
            <artifactId>de.flapdoodle.embed.mongo</artifactId>
            <version>2.2.0</version>
            <scope>test</scope>
        </dependency>

i use mongo embbeded from flapdoodle. thanks anyway