High performance Functional tests

Andrii Soldatenko 31 January 2015 @a_soldatenko

About me:• Senior Test Automation Engineer at

• Backend Python Developer at

• Speaker at PyCon Ukraine 2014

• @a_soldatenko

• http://asoldatenko.com

"Tests are the Programmer’s

stone, transmuting fear into boredom."

We don’t have time for tests

Test Automation Pyramid

from  http://martinfowler.com/bliki/TestPyramid.html

Unit tests

Integration tests

Functional or UI tests

How to automate Functional tests for Web?

Demo

Test Execution Time

• Faster Tests Mean Faster Development

• Slow Tests Don’t Get Run as Often

How to decrease test execution time?

“Man is a tool-using animal. Without tools he is nothing, with tools he is all.“ - Thomas Carlyle

Using requests instead of Selenium

Demo

Use Selenium Grid

Node

Node

Node

Hub

How to setup Selenium Grid locally

unittests in Pythonparallel

execution plugins test coverage

unittest NO NO NO

YES NO YES

YES YES NO

Selenium Grid + Concurrent test execution

Node

Node

Node

HubOR

Demo

Selenium Grid in Cloud

Demo

Use Selenium with PhantomJS

+

Demo

Functional tests for Django

Final Thoughts

• Don’t test constants

• Avoid double-testing functionality

• Collaboration on Step Definitions in BDD

• Use Continuous Integration

• Slow tests kill productivity

Questions

?

Thank You

a_soldatenko@wargaming.net

@a_soldatenko

http://asoldatenko.com