Oh Py, Behave

• Colin Moore-Hill

Silly intro referencing LotR, monty python and holy grail ...

BDD

Behaviour Driven Development

• Business people - see opportunites
• Technical people - see details, 1s and 0s

Test Automation - Holy Grail? Or Very Naughty Boy?

Cohn’s Triangle - UI at top, Service, Unit at bottom

behave

• python implementation of BDD framework
• uses Gherkin like syntax

Initial state steps that represent actions new state

Feature: As an IT professional I want to explain how BDD works So That others can ...

Scenario:

Code sample

Features:

@Tags ...

environment.py - before_step(), after_step(), scenario, ...

Lessons

• don’t rush into automation
• don’t spend hours arguing about correct language
• have the conversations and write scenarios with team
• add test to CI as early as possible
• use your scenarios
• Include the subject matter experts (SME), domain experts and customers
• keep scenarios precise and use examples to reinforce the scenario
• every scenario is negotiable and subject to change at any time
• your scenarios are your living documentation
• don’t add implementation details in scenarios

References

• http://pythonhosted.org/behave/index.html
• ...