Bye Bye Charles, Welcome Odo, Android Meetup Berlin May 2014
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Introducing the next generation testing proxy we use at Groupon to the public: Odo an http proxy with a RESTful API for mocking or partial rewriting of responses and requests
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Bye Bye Charles, Welcome Odo, Android Meetup Berlin May 2014
- 1. Bye Bye Charles, Welcome Odo! Android Stammtisch 28.Mai 2014 Danny Preussler
- 2. Leading the way in mobile commerce Our mobile app is available in 43 countries Groupon’s vibrant mobile marketplace connects consumers with their local economy Sources: Internal Data; iTunes ranking for US stores available here - https://itunes.apple.com/WebObjects/MZStore.woa/wa/viewFeature? Nearly 70 million people worldwide have downloaded our mobile app to date; 9 million in Q4 2013. One of the 25 most downloaded free apps of all time Nearly 50% of our global transactions completed on a mobile device in December 2013
- 3. The Problem Test data from WebService(s)
- 4. Mock data? • Easy with DI frameworks • Hard with black box test frameworks • Do not reflect server changes + -
- 5. Use real data? • Real world • Hard to setup all test cases (manipulate db with scripts …) • Automation mostly breaks because of networking + -
- 6. Do both • Return mocked data if needed • Use real world real data • Modify data on the fly if needed
- 7. We need: • Someone who can change depending on what is needed?
- 8. A Solution
- 9. Odo-ed
- 10. Response Override • Return fixed response content • Return fixed response code • Add delays
- 11. Response Override cont. • Add/remove request headers • Change content • Change response code
- 12. Response Override cont. • Do sequences of all those • Supports Plugins for custom responses i.e. makeDealSoldOut
- 13. Request Override • Add/remove request headers • Custom request – add/change parameters • Change the target i.e. send production request to staging/test
- 14. Odo Demo
- 15. Build a plugin public class MyPlugins { @ResponseOverride( httpCode=302, description="Return HTTP302") public static String http302(String source) throws Exception { return „<html><body>You are being redirected.</body></html>“; } Done
- 16. Configuration • No installation needed, simple war file • Webinterface • API
- 17. API • JSON REST API • Java Client available
- 18. public class OdoTest extends ActivityInstrumentationTestCase2<LoginActivity> { Client odoClient = new Client("33", false); public void testOdo() throws Exception { LoginActivity activity = getActivity(); // genymotion != localhost odoClient.setHostName("192.168.56.1"); odoClient.addMethodToResponseOverride( "Countries", "com.groupon.odo.internal.Common.http503"); odoClient.toggleResponseOverride("Countries", true); } }
- 19. What do you have to change in your app?
- 20. Proxy proxy = new Proxy( Proxy.Type.HTTP, new InetSocketAddress( "192.168.56.1", 9090)); new URL("http://api...").openConnection(proxy); HttpUrlConnection
- 21. OkHttp Proxy proxy = new Proxy( Proxy.Type.HTTP, new InetSocketAddress( "192.168.56.1", 9090)); OkHttpClient client = new OkHttpClient(); client.setProxy(proxy);
- 22. DefaultHttpClient httpclient = new DefaultHttpClient(); httpclient.getParams().setParameter( ConnRoutePNames.DEFAULT_PROXY, new HttpHost("192.168.56.1", 9090)); Old school apache
- 23. Configuration • Supports multiple users through client id’s • This way you can share proxy • Apps send them as http-header
- 24. Configuration • Forwarding proxy mode • Man in the middle mode • SSL certificate download page
- 25. Behind odo • Utilizes forwarding proxy, Spring, Spring Boot, Java servlets, embedded database • Packaged as a .war file • No setup required
- 26. Advantages • Test Automation • Avoid stub data maintenance • Create dynamic test automation • Manual Test • UI allows easy configuration changes • No coding knowledge required • Development • Remove dependencies on server changes for client development
- 27. Odo + vs Charles • Is free • Is open source • Is “programmable” • Is extendable via plugins • Has API • Perfect for test automation
- 28. Where can I get Odo? https://github.com/groupon In a couple of days…
- 29. Follow us… Abgeschottete Realität Android Apps kontrolliert im Emulator testen Danny Preussler, Groupon The Day After Lars Röwekamp, open knowledge Danny Preussler, Groupon
- 30. Follow us… https://engineering.groupon.co m/ Michael Burton, Roboguice Carlos Sessa, 50 Android hacks David van der Bokke, RoboRemote David Willson, Odo ….
- 31. Thank you
Notas del editor
- In december nearly 50% of global transactions were done on mobile.. That’s so awesome.. And it means we have to create good tools to do more effective testing.. Tonight we’ll two tools created by the mobile test engineering team at Groupon. In the future we’d like to get some of you up here to share topics that you think everyone wants to hear about. Please send me a message on meetup or come talk to me afterwards about your ideas. First up I’d like to get David Willson up here to talk about Odo…
- You could create the complete response and use a mock server, but that comes with the disadvantage of having to maintain the stub data whenever the service changes.
- You could create the complete response and use a mock server, but that comes with the disadvantage of having to maintain the stub data whenever the service changes.
- You could create the complete response and use a mock server, but that comes with the disadvantage of having to maintain the stub data whenever the service changes.
- You could create the complete response and use a mock server, but that comes with the disadvantage of having to maintain the stub data whenever the service changes.
- You could create the complete response and use a mock server, but that comes with the disadvantage of having to maintain the stub data whenever the service changes.
- Odo is a character from Star Trek Seep Space 9, he is a shapeshifter able to look like almost any object Similar to the goals we had for this project to morph data into what we need for testing purposes. Testing edge cases, simulating scenarios
- There are two basic override types for Odo, the request override and the response override. The request override takes place when Odo intercepts the client request to the service.
- There are two basic override types for Odo, the request override and the response override. The request override takes place when Odo intercepts the client request to the service.
- There are two basic override types for Odo, the request override and the response override. The request override takes place when Odo intercepts the client request to the service.
- There are two basic override types for Odo, the request override and the response override. The request override takes place when Odo intercepts the client request to the service.
- There are two basic override types for Odo, the request override and the response override. The request override takes place when Odo intercepts the client request to the service.
- In this example, we are applying a custom response and simulating a 100ms delay
- In this example, we are applying a custom response and simulating a 100ms delay
- Set prox yon differerent clients
- Set prox yon differerent clients
- Set prox yon differerent clients
- Man in the middle for windows phone
- No install, packaged along with its dependencies. Importing a preexisting configuration is a single step process.
- For test automation, Odo makes it easy for us to simulate complex or edge-case scenarios Manual testing get access to the same abilities through the UI Client development doesn’t need to wait for server changes to verify their feature There are additional features that make life easier, like multiple client support. With clients each user can specify their own override behavior configuration and not be affected by other clients. This allows for a central server that our developers can utilize instead of each running their own local instance.
- Charles: on the fly change Odo: prepare and let run