TDD-based workflow: Optimizing Development Process

TDD is not about removing bug, it's more about allowing you to get instant feedback to the quality of your design

Transcript

1. TDD-based Workflow Optimizing Development Process Akbar Hidayat
2. Test Driven Development 1. Define Expected Behaviours 2. Code them
3. assertEquals( 10, add(4, 6) );
4. function add(left, right) return left + right; );
5. BUG DESTROYER? BUG DESTROYER?
6. TEST NEEDS DESIGN
7. Feedback
8. BUSINESS IMPACTS
9. CORRECT IMPLEMENTATION
10. MAINTAINABLE CODE
11. Tests provide feedback for the quality of the design
12. TDD TDD can't even be begun until we know the shape of the system that is to be created. (Uncle Bob)
13. BDD The point of BDD is to get people communicating and bridge the gap between ‘technical’ and ‘business’ people (Dan North)
14. Clean Architecture & DDD
15. Breaking it down 1. User Stories 2. Scenario Explorations 3. Architecture Decisions 4. Writing down the test
16. User Story As a [role] I want to [user need] so that [change]
17. User Story 1. Who 2. Behavioral Change 3. Business Value 4. Ubiquitous Language
18. User Story As an event owner I want to refund the remaining points from an event so that I can use the points again
19. leanpub.com/50quickideas
21. Architectural Decisions TDD can't even be begun until we know the shape of the system that is to be created. (Uncle Bob)
23. Think how the code flow
25. /** * @expectedException InvariantException * @expectedExceptionMessage EVENT.REFUND.STILL_ACTIVE */ function given_that_an_event_has_not_finished_and_when_the_event_is _being_refunded_then_it_should_fail() { $eventRefund->refund($event, $requester); }
26. /** * @test */ function given_that_the_event_is_sponsored_and_when_it_has_been_ref unded_then_the_remaining_point_should_be_returned_to_the_a dmin() { ... }
27. /** * @test */ function refunding_a_sponsored_event_should_increase_admin_point() { // Simulating HTTP POST to a certain route $this->post(‘/refundedevents’, [ ‘id’ => 212 ]); // Check in Database that the admin point has increased ... }
28. Documentation of what the SUT does
29. Documentation of how it does it
30. DECODE IDEAS DISCOVER POTENTIAL