1. Maintaining Sanity In A Hypermedia World
Amit Easow, Comcast

2. Maintaining Sanity In A Hypermedia World
Amit Easow
GTAC, Kirkland
October 29, 2014

3. The X1 Entertainment Operating System
In 2013, the product team presented the vision of the X1 Entertainment Operating System
Amit Easow- Maintaining Sanity In A Hypermedia World

4. What I saw… Each node is a page, each line is a link to another page
This represents only a fraction of the total API
Amit Easow- Maintaining Sanity In A Hypermedia World

5. External Services Hypermedia API Middleware Hypermedia API
The same API is presented to all clients
The Android robot is reproduced or modified from work created and shared by Google and used according to terms described in the Creative Commons 3.0 Attribution License. Other images are public domain or used with permission.
Amit Easow- Maintaining Sanity In A Hypermedia World

6. Discovery Client Home Page Link URL Link Resource Resource Resource
This is a simplified version of the Hypermedia API
Amit Easow- Maintaining Sanity In A Hypermedia World

7. Continuous testing… *CI
To maintain sanity...
Code repo… git
Code review… gerrit
Continuous testing… *CI
As of last week functional tests & 8931 unit test
Code coverage is over 90%
Continuous deployment… *CI
*CI = Continuous integration and deployment server
Feedback Feedback Feedback!
Sanity is maintained by extensive testing
Virtually zero defects escape to production
We deploy code everyday
Amit Easow- Maintaining Sanity In A Hypermedia World

8. Continuous Testing Pipeline
Code Review
Merge Patch Set
Code
Verify
Feedback Feedback Feedback!
Gerrit triggers Verify by running test cases
Amit Easow- Maintaining Sanity In A Hypermedia World

9. Daily Deployment Pipeline
Dev QA
QA Load
Stage
Prod
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Failure at any stage encourages an investigation and loop back
Amit Easow- Maintaining Sanity In A Hypermedia World

10. Web Application Resource Testing System PyFuncTest
We test all the API endpoints before they are offered to clients

11. 3rd Party API Mocking Framework Hydra
We test against 3rd party APIs that are not ready for integration
Hydra allows us to mock out scenarios that are difficult in test live
Only a subset of test cases is run against the live 3rd party endpoints

12. On every build... Feedback Feedback Feedback!
Anyone from the team can suggest ideas for more tests
Amit Easow- Maintaining Sanity In A Hypermedia World

13. Continuous testing and deployment
In Summary...
Code repo and review
Continuous testing and deployment
PyFuncTest for API functionality testing
Hydra for mocking of 3rd party APIs
Continue exploring ways to improve testing
Contact me:
Amit Easow- Maintaining Sanity In A Hypermedia World