High performance functional tests

2. High performance
Functional tests
Andrii Soldatenko
31 January 2015
@a_soldatenko

3. About me:
• Senior Test Automation Engineer at
• Backend Python Developer at
• Speaker at PyCon Ukraine 2014
• @a_soldatenko
• http://asoldatenko.com

4. "Tests are
the Programmer’s
stone,
transmuting fear
into boredom."

5. We don’t have time
for tests

6. Test Automation Pyramid
from
http://martinfowler.com/bliki/TestPyramid.html

7. Unit tests

8. Integration tests

9. Functional or UI tests

10. How to automate
Functional tests for Web?

11. Demo

12. Test Execution Time
• Faster Tests Mean Faster Development
• Slow Tests Don’t Get Run as Often

13. How to decrease test
execution time?
“Man is a tool-using animal.
Without tools he is nothing, with tools he is all.“ - Thomas Carlyle

14. Using requests
instead of Selenium

15. Demo

16. Use Selenium Grid
Node
Node
Node
Hub

17. How to setup
Selenium Grid locally

18. unittests in Python
parallel
execution
plugins
test
coverage
unittest NO NO NO
YES NO YES
YES YES NO

19. Selenium Grid +
Concurrent test execution
Node
Node
Node
Hub
OR

20. Demo

21. Selenium Grid in Cloud

22. Demo

23. Use Selenium with
PhantomJS
+

24. Demo

25. Functional tests
for Django

26. Final Thoughts
• Don’t test constants
• Avoid double-testing functionality
• Collaboration on Step Definitions in BDD
• Use Continuous Integration
• Slow tests kill productivity

27. Questions
?

28. Thank You
a_soldatenko@wargaming.net
@a_soldatenko
http://asoldatenko.com