1 - Testing Neo4j Methods

• Neo4j’s Test Harness
• Neo4j’s Embedded
• TestContainer’s Neo4j Module

2 - Comparisons

Using Harness and/or the Neo4j’s Embedded requires adding dependencies. This inevitably pollutes the test classpath leading to various issues, for example

• having conflicting versions of libraries on the classpath (the culprits are usually Lucene, Jetty or Scala), see for example this issue
• Spring auto-configuration is affected by presence of certain classes on classpath
• non-determinism - your code either sometimes fails, or fails only in certain environments

3 - Resources

• https://graphaware.com/docker,/testing/2018/12/16/integration-testing-with-docker-neo4j-image-and-testcontainers.html