This document discusses Python tools for testing, including py.test, tox, and TravisCI. It provides information about each tool: py.test is an improved unit testing library compared to nose, with readable test results, mocking features, and JUnit XML output; tox runs tests across multiple Python versions using virtualenv; and TravisCI is a continuous integration service that runs tests automatically on GitHub code commits for open source projects in various languages including Python. Examples of configuration files for tox and TravisCI are also included.

1. Python tools
for testing
English LT #2
Kazuhiro Oinuma (@oinume)

2. About myself

3. About myself
• CyberAgent,Inc since 2010.3

4. About myself
• CyberAgent,Inc since 2010.3
• Like Perl, Python, Ruby

5. About myself
• CyberAgent,Inc since 2010.3
• Like Perl, Python, Ruby
• Twitter: @oinume

6. About myself
• CyberAgent,Inc since 2010.3
• Like Perl, Python, Ruby
• Twitter: @oinume
• My blog: Oinuma Nippou

7. Recently I learned

8. Recently I learned
• py.test

9. Recently I learned
• py.test
• tox

10. Recently I learned
• py.test
• tox
• ToravisCI

11. py.test

12. py.test
• An unit test library

13. py.test
• An unit test library
• Better than nose

14. py.test
• An unit test library
• Better than nose
• Test results are readable

15. py.test
• An unit test library
• Better than nose
• Test results are readable
• Has mocking feature

16. py.test
• An unit test library
• Better than nose
• Test results are readable
• Has mocking feature
• Can generate junit xml format

17. nose test results

18. py.test test results

19. Mocking feature
monkeypatch.setattr()
overwrites an attribute (method)

20. --junitxml

21. --junitxml
• --junitxml=junit.xml generates
XML for Jenkins

22. --junitxml
• --junitxml=junit.xml generates
XML for Jenkins
• This is a core feature

23. --junitxml
• --junitxml=junit.xml generates
XML for Jenkins
• This is a core feature
• nose s one is optional.

24. tox

25. tox
• Run unit tests with multiple
pythons (2.5, 2.6, 2.7, etc...)

26. tox
• Run unit tests with multiple
pythons (2.5, 2.6, 2.7, etc...)
• Using virtualenv

27. tox
• Run unit tests with multiple
pythons (2.5, 2.6, 2.7, etc...)
• Using virtualenv
• Python environment manager

28. tox
• Run unit tests with multiple
pythons (2.5, 2.6, 2.7, etc...)
• Using virtualenv
• Python environment manager
• Demo

29. TravisCI

30. TravisCI

31. TravisCI
• CI tools for open-sourced Github
projects

32. TravisCI
• CI tools for open-sourced Github
projects
• Ready for Perl, Python, Ruby, Java,
JavaScript (w/ Node.js), Scala

33. TravisCI
• CI tools for open-sourced Github
projects
• Ready for Perl, Python, Ruby, Java,
JavaScript (w/ Node.js), Scala
• You don t need to setup Jenkins
any more!!

34. How to get to use

35. How to get to use
• Enabling TravisCI hook for Github

36. How to get to use
• Enabling TravisCI hook for Github
• Put .travis.yml in the project
directory

37. How to get to use
• Enabling TravisCI hook for Github
• Put .travis.yml in the project
directory
• Then, just commit and push !

38. Enabling a hook

39. .travis.yml
language: python
python:
- "2.5"
- "2.6"
- "2.7"
install:
- pip install . --use-mirrors
- pip install mock>=0.8 pytest>=2.2 pytest-cov>=1.5
script:
- py.test tests/internal

40. After build

41. Testing becomes
more fun !

42. Thank You