Integration testing dropwizard

Testing DropwizardMichał Rutkowski (mrutkowski@yammer-inc.com)

Challenge

My Service

Dependency Service 3

Dependency Service 2

Dependency Service 1

Will it work?

Assume

ServiceService Client

Teste

d

Before deploying we would like to test

My ServiceMy Service

ClientDependency 2 Client

Dependency 1 Client

Dependency 3 Client

Solution: dropwizard-testing-integration

End-to-end service test as opposed to unit and resource tests:- Allows you to start and stop the dropwizard instance

programmatically- Compatible with DW 0.62- Use it to run integration tests in your build

Example: setup

Example: teardown

Example: tests

How to get it?

https://github.com/yammer/dropwizard-testing-integration

Caveats

• We needed to hack a bit, to reset static state. • Flaky with more than one instance being started at the

same time.• Only tested to work with DW 0.62• Be careful how you pull in dependency clients

Future

• Integrate the functionality into DW• Would be useful if DW had no static state