We live in changeable world, and our applications are also very inconstant. As a result we have to know how to improve project quality. The subject of my presentation is related to the modern approaches of designing and implementing automated functional tests, by using, for instance, design patterns, improving test execution time based parallel execution, scaling by distributing tests on several machines, creating strategy for generation of big sets of test data and setup skeleton for organizing tests for typical Django project. I am pleased to share with you my acquired experience in this field.

1. AUTOMATED FUNCTIONAL
TESTS BASED ON SELENIUM
FOR DJANGO PROJECTS
ANDRII SOLDATENKO

2. ABOUT ME:
• TEST
AUTOMATION
LEAD
AT
LUXOFT
• PYTHON
DEVELOPER
AT
TOPTAL
• @A_SOLDATENKO
• HTTP://ANDRIISOLDATENKO.GITHUB.IO/

3. “TESTS ARE THE PROGRAMMER’S STONE, TRANSMUTING FEAR INTO
BOREDOM.” - KENT BECK
3
WE DON’T HAVE TIME FOR TESTS!

4. TEST AUTOMATION PYRAMID:
Unit tests
Integration tests
Functional
tests

5. TASK: HOW TO AUTOMATE FUNCTIONAL TESTS FOR WEB?

6. ABOUT SELENIUM:
• PIP
INSTALL
-­‐U
SELENIUM
• SELENIUM
WEBDRIVER
API
NOW
IN
W3C
DRAFT
SPECIFICATION
• RUN
IN
MANY
BROWSERS
• AND
OS
• CAN
BE
CONTROLLED
BY
DIFFERENT
PROGRAMMING
LANGUAGES

7. 7
DEMO

8. WHEN
NUMBER
OF
TESTS
IS
GROWING:
• WE
NEED
TO
DECREASE
TEST
EXECUTION
TIME
• WE
NEED
TO
USE
DESIGN
PATTERNS
(I.E
PAGEOBJECT,
PAGEFACTORY)
• WE
NEED
TO
USE
SKELETON
FOR
ORGANIZING
TESTS

9. SKELETON
FOR
ORGANIZING
TESTS:

10. DESIGN
PATTERNS:

11. SIMPLE
SELENIUM
TEST
WITHOUT
PAGEOBJECT:

12. SIMPLE
SELENIUM
TEST
WITH
PAGEOBJECT:

13. SIMPLE
SELENIUM
TEST
WITH
PAGEOBJECT:

14. SIMPLE
SELENIUM
TEST
WITH
PAGEOBJECT:

15. WHAT
ABOUT
FT
IN
DJANGO?

16. HOW
TO
DECREASE
TEST
EXECUTION
TIME
?
• SET
UP
LOCAL
SELENIUM
GRID
• USE
SAUCE
LABS
• USE
PYTEST
OR
NOSE

17. ABOUT
SELENIUM
GRID:
Node
Node
Node
Hub

18. SETUP
SELENIUM
GRID
LOCALLY:

19. SCHEME
FOR
SELENIUM
GRID
+
CONCURRENT
TEST
EXECUTION
py.test
unittest.TestCase
Node
Node
Node
Hub

20. BEST
PRACTICE
FOR
TEST
DATA
GENERATION
AND
• DJANGO
LOREM
IPSUM
UTILS
• DON’T
USE
FIXTURES
• USE
FACTORY
BOY
+
FAKER
INSTEAD
OF
FIXTURES

21. BEST
PRACTICE
FOR
CREATION
FT
TESTS:
• USE
EXPLICIT
WAITS
RATHER
THAN
IMPLICIT
WAITS.
• USE
CODE—HELPER
METHODS
IN
BASE
CLASS,
OR
PAGE
PATTERN.
• AVOID
DOUBLE-­‐TESTING
FUNCTIONALITY
• LOOK
INTO
BDD
TOOLS
• USE
CONTINUOUS
INTEGRATION

22. 22
?
QUESTIONS:

23. 23
• @A_SOLDATENKO
• HTTPS://ANDRIISOLDATENKO.GITHUB.IO/
THANK
YOU: