Kentan - A Modular Test Data Composer

Kentan allows you to create, organize and compose test data. Once this is done it simplifies your test arrangements. Gregor created it to avoid boring test setup on every new project. In this talk, we'll see what is Kentan and how it can make our life easier.

Transcript

1. co-IT.eu GmbH We Empower Outstanding Business Solutions www.co-IT.eu Kentan – A Modular Test Data Composer @GregOnNet
2. @GregOnNet CTO Gregor Woiwode
3. github.com/kentan-official/kentan/
4. Why? The task synthesizing test data is underestimated.
5. Arrange Act Assert Theoretically … EVOLUTION OF UNIT TESTS
6. Arrange Act Assert Mostly we see… EVOLUTION OF UNIT TESTS
7. Arrange Act Assert Things can get even more complicated EVOLUTION OF UNIT TESTS
8. The share for Arrangement and Act grows
9. https://kentan-official.github.io/kentan/
12. The flow of Kentan ARCHITECTURE Setup Model Configure Test Sketch Compose Override
13. Support for Testing Frameworks KENTAN All that use
14. Setup Sketch export interface Product { id: number; title: string; description: string; priceInDollars: number; }
15. Sketch import { Sketch } from '@kentan-official/core'; import { Product } from '@models/product'; export class ForProduct extends Sketch<Product> { constructor() { super({ id: 1, title: 'XBox One‘, description: 'Gaming Console‘, priceInDollars: 300 }); } }
16. Sketch import { Sketch } from '@kentan-official/core'; import { Product } from '@models/product'; export class ForProduct extends Sketch<Product> { constructor() { super({ id: 1, title: 'XBox One‘, description: 'Gaming Console‘, priceInDollars: 300 }); } }
17. Sketch import { Sketch } from '@kentan-official/core'; import { Product } from '@models/product'; export class ForProduct extends Sketch<Product> { constructor() { super({ id: 1, title: 'XBox One‘, description: 'Gaming Console‘, priceInDollars: 300 }); } }
18. Sketch import { Sketch } from '@kentan-official/core'; import { Product } from '@models/product'; export class ForProduct extends Sketch<Product> { constructor() { super({ id: 1, title: 'XBox One', description: 'Gaming Console', priceInDollars: 300 }); } }
19. Configure SKETCH describe('Product', () => { describe('When a price is given', () => { it('should yield the actual price', () => { const givenPrice = 300; const product = Kentan.sketch(ForProduct).model(); expect(product.priceInDollars).toBe(givenPrice); }); }); });
20. Configure SKETCH describe('Product', () => { describe('When a price is given', () => { it('should yield the actual price', () => { const givenPrice = 300; const product = Kentan.sketch(ForProduct).model(); expect(product.priceInDollars).toBe(givenPrice); }); }); });
21. Configure SKETCH describe('Product', () => { describe('When a price is given', () => { it('should yield the actual price', () => { const givenPrice = 300; const product = Kentan.sketch(ForProduct).model(); expect(product.priceInDollars).toBe(givenPrice); }); }); });
22. Configure SKETCH describe('Product', () => { describe('When a price is given', () => { it('should yield the actual price', () => { const givenPrice = 300; const product = Kentan.sketch(ForProduct).model(); expect(product.priceInDollars).toBe(givenPrice); }); }); });
23. Configure SKETCH Kentan.sketch(ForShoppingBasket).model({ title: 'Play Station' }); Kentan provides bulk overrides.
24. Configure SKETCH Kentan.sketch(ForShoppingBasket) .take(10) .models({ title: index => `Game Console ${index}` }); Kentan creates lists
25. Configure SKETCH Kentan.sketch(ForShoppingBasket) .take(10) .models({ title: index => `Game Console ${index}` }); Bulk overrides for lists
26. npm install @kentan-official/core Kentan is hosted at
27. Demo https://github.com/kentan-official/quick-start
29. Kentan has built-in support for cypress.io
30. Demo https://github.com/kentan-official/cypress-playground
31. The Downside Of Kentan KENTAN More Files Boilerplate Code
32. If you detect a weakness turn it into a strength.
33. +
34. ng add @kentan-official/schematics Add Kentan to https://kentan-official.github.io/kentan/docs/#/angular-cli/schematics
35. Demo https://github.com/kentan-official/angular-playground
36. Summary KENTAN Sketch creates reusable test data Generator builds configurable Sketch-Lists Helpers configure Sketches Tooling for Angular generating Sketchs automatically
37. co-IT.eu GmbH We Empower Outstanding Business Solutions www.co-IT.eu Thank You @GregOnNet