Effective Scenarios

Transcript

1. Writing Effective Scenarios for testing
2. Warning •  I’m Scottish, so I talk fast by default •  If I start talking fast, wave or something
3. BDD != TDD
4. Don’t change tests Good testing practices
5. One Logic Assertion Good testing practices
6. One Event Good testing practices
7. Should be able to run in parallel Good testing practices
8. Stable Good testing practices
9. In Behat Scenarios are the key Good testing practices
10. Single responsibility Good testing practices
11. Scenarios shouldn't include implementation details Good testing practices
12. Three kinds of steps Given THE SETUP
13. Three kinds of steps WHEN THE EVENT
14. Three kinds of steps THEN/BUT THE ASSERTION
15. Given I have a product called “Nokia Phone” with url slug “nokia-phone” for the price of “10” Given I have a phone called “Samsung Phone” which is recommend for “Nokia Phone” When I open “/products” When I click link “.product:contains(‘Nokia Phone’)” Then I should see “Nokia Phone” in h2 class “producttitle” Then I should see price of £12 Then I should see “Samsung Phone”
16. Let’s fix it!
17. Given I have a product called “Nokia Phone” with url slug “nokia-phone” for the price of “10” Given the following products exist: | Title | Price | Url Slug | | Nokia Phone | 10 | nokia-phone |
18. Given I have a phone called “Samsung Phone” which is recommend for “Nokia Phone” Given the following products exist: | Title | Price | Url Slug | | Nokia Phone | 10 | nokia-phone | | Samsung Phone | 10 | samsung-phone | And “Samsung Phone” is recommended for “Nokia Phone”
19. When I open “/products” When I open the products listing page
20. When I click link “.product:contains(‘Nokia Phone’)” When I go to the product page for “Nokia Phone”
21. Then I should see “Nokia Phone” in h2 class “product-title” Then I should see the product title as “Nokia Phone”
22. Then I should see price of £12 Then I should see a price that includes VAT of £12
23. Then I should see “Samsung Phone” Then I should be recommended “Samsung Phone”
24. It’s all changed!
25. Given I have a product called “Nokia Phone” with url slug “nokia-phone” for the price of “10” Given I have a phone called “Samsung Phone” which is recommend for “Nokia Phone” When I open “/products” When I click link “.product:contains(‘Nokia Phone’)” Then I should see “Nokia Phone” in h2 class “producttitle” Then I should see price of £12 Then I should see “Samsung Phone”
26. Now it looks like
27. Given the following products exist: | Title | Price | Url Slug | | Nokia Phone | 10 | nokia-phone | | Samsung Phone | 10 | samsung-phone | And “Samsung Phone” is recommended for “Nokia Phone” When I open the product listing page And I go to the product page for “Nokia Phone” Then I should see the product title as “Nokia Phone” And I should see a price that includes VAT of £12 And I should be recommended “Samsung Phone”
28. Better but still not good
29. Given the following products exist: | Title | Price | Url Slug | | Nokia Phone | 10 | nokia-phone | | Samsung Phone | 10 | samsung-phone | And “Samsung Phone” is recommended for “Nokia Phone” When I open the product listing page And I go to the product page for “Nokia Phone” Then I should see the product title as “Nokia Phone” And I should see a price that includes VAT of £12 And I should be recommended “Samsung Phone”
30. Given the following products exist: | Title | Price | Url Slug | | Nokia Phone | 10 | nokia-phone | | Samsung Phone | 10 | samsung-phone | And “Samsung Phone” is recommended for “Nokia Phone” When I open the product listing page And I go to the product page for “Nokia Phone” Then I should see the product title as “Nokia Phone” And I should see a price that includes VAT of £12 And I should be recommended “Samsung Phone”
31. Given the following products exist: | Title | Price | Url Slug | | Nokia Phone | 10 | nokia-phone | When I open the product listing page And I go to the product page for “Nokia Phone” Then I should see the product title as “Nokia Phone” And I should see a price that includes VAT of £12
32. Given the following products exist: | Title | Price | Url Slug | | Nokia Phone | 10 | nokia-phone | When I open the product listing page And I go to the product page for “Nokia Phone” Then I should see the product title as “Nokia Phone” And I should see a price that includes VAT of £12
33. Given the following products exist: | Title | Price | Url Slug | | Nokia Phone | 10 | nokia-phone | When I go to the product page for “Nokia Phone” Then I should see the product title as “Nokia Phone” And I should see a price that includes VAT of £12
34. Given the following products exist: | Title | Price | Url Slug | | Nokia Phone | 10 | nokia-phone | When I go to the product page for “Nokia Phone” Then I should see the product title as “Nokia Phone” And I should see a price that includes VAT of £12
35. Given the following products exist: | Title | Price | Url Slug | | Nokia Phone | 10 | nokia-phone | When I go to the product page for “Nokia Phone” Then I should see the product title as “Nokia Phone”
36. Given the following products exist: | Title | Price | Url Slug | | Nokia Phone | 10 | nokia-phone | When I go to the product page for “Nokia Phone” Then I should see the product title as “Nokia Phone”
37. Given the following products exist: | Title | Price | Url Slug | | Nokia Phone | 10 | nokia-phone | When I go to the product page for “Nokia Phone” Then I should see the product information for “Nokia Phone”
38. Questions? E-Mail – iain@iain.sexy Twitter - @ircambridge