Full Clean Factories

Transcript

1. Full Clean Factories James Cooke Licensed under the Creative Commons

   Attribution-ShareAlike 3.0 Unported License.

2. Outline • Problem • Libraries • Grading factories • Factory

   features • Results

3. Problem

4. Factories • Django Fakery • Factory Boy • Factory Djoy

   • Hypothesis[django] • Mixer • Model Mommy

5. Grading factories: Test • Two models: User and Item •

   Two factories: UserFactory and ItemFactory • Create 10 instances class Item(models.Model): name = models.CharField( max_length=1, unique=True)

6. Grading factories: Grades • RED: Creates invalid instances • YELLOW:

   Raises exception • GREEN: Creates valid instances

7. Factories Factory ItemFactory UserFactory Django Fakery RED YELLOW Factory Boy

   RED RED Factory Djoy YELLOW GREEN Hypothesis[django] RED RED Mixer GREEN GREEN Model Mommy YELLOW GREEN

8. Final points • Factories are made of two parts •

   Hypothesis could win • Test code on GitHub: https://github.com/jamescooke/factory_audit/ • Full write-up tomorrow http://jamescooke.info/

9. Thanks! • @jamesfublo • Ask questions • Let’s talk more

   about testing • Thanks for listening! Licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License.