Question
| Is it possible to run a fake embedded MongoDB for Spring Boot 2 testing?
Answer
| Yes ! It is possible and there are two choices:
Refer to
- mongo-spring-test-demo for the non-reactive version
- mongo-spring-test-demo-reactive for the reactive version
DO take note that using an embedded server cannot be considered as “full integration testing”
Option 1 - mongo-java-server
mongo-java-server is a fake implementation of MongoDB in Java that speaks the wire protocol.
Take note this one has limited features.
<dependency>
<groupId>de.bwaldvogel</groupId>
<artifactId>mongo-java-server</artifactId>
<version>1.28.0</version>
<scope>test</scope>
</dependency>Option 2 - Flapdoodle Embedded MongoDB
Flapdoodle Embedded MongoDB provides a platform neutral way for running mongodb in unittests.
<dependency>
<groupId>de.flapdoodle.embed</groupId>
<artifactId>de.flapdoodle.embed.mongo</artifactId>
<version>2.2.0</version>
<scope>test</scope>
</dependency>Failed Option - Fongo
fongo is a faked out in-memory mongo for Java.
It has an example of working with Spring Boot 1.
But keep getting errors when trying out with Spring Boot 2.