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Test driven development_for_php

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Lean Teams Consultancy
Lean Teams Consultancy

Training material I used to introduce Test Driven Development to PHP programmers for one of my clients.

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Test-Driven Development Francis Fish, Pharmarketeer [email_address] This is distributed under the  Creative Commons Attribution-Share Alike 2.0  licence Download from:  http://www.pharmarketeer.com/tdd.html
What? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Why do TDD? ,[object Object],[object Object],[object Object],[object Object],[object Object]
Example: Specification ,[object Object]
First test case ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Let's Fail! ,[object Object],[object Object],[object Object],[object Object],[object Object]
We Failed! ,[object Object]
Add the empty class ,[object Object],[object Object],[object Object],[object Object]
Add a test to the test class ,[object Object],[object Object]
Add the method ,[object Object],[object Object],[object Object],[object Object],[object Object]
Painful, wasn't it? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
next ... ,[object Object],[object Object],[object Object]
Designing a data object ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Data Object specification ,[object Object],[object Object],[object Object]
Data Object tests ,[object Object],[object Object],[object Object],[object Object]
data_obj.php ,[object Object],[object Object],[object Object],[object Object]
Add some methods to the class ,[object Object],[object Object]
Discussion - what have we missed? ,[object Object],[object Object],[object Object]
Test mixed case ,[object Object],[object Object]
Aside: Meaningful messages ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Discussion - what have we missed? ,[object Object],[object Object],[object Object],[object Object]
Exceptions ,[object Object],[object Object],[object Object],[object Object],[object Object]
Fix the code ,[object Object],[object Object],[object Object],[object Object],[object Object]
Recap: the test class ,[object Object]
Advanced example - mock and stub  
Mocks and Stubs ,[object Object],[object Object],[object Object],[object Object],[object Object]
We don' need no stinkin' datybasey ,[object Object],[object Object],[object Object],[object Object]
DB Class "formal" specification ,[object Object],[object Object],[object Object],[object Object],[object Object]
Discussion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Only do what the test asks ,[object Object],[object Object]
DB Class "formal" specification ,[object Object],[object Object],[object Object],[object Object],[object Object]
Get some data back ,[object Object],[object Object],[object Object],[object Object]
Change the class ,[object Object],[object Object]
Mock the database ,[object Object],[object Object],[object Object]
[object Object],[object Object]
DB Class "formal" specification ,[object Object],[object Object],[object Object],[object Object],[object Object]
Stub database calls ,[object Object],[object Object]
Change the class ,[object Object],[object Object],[object Object]
DB Class "formal" specification ,[object Object],[object Object],[object Object],[object Object],[object Object]
Check getRow() SQL generation ,[object Object],[object Object],[object Object],[object Object]
Fix the class ,[object Object],[object Object],[object Object]
Why did it fail? ,[object Object],[object Object],[object Object]
The results of more thought ,[object Object]
Where next? ,[object Object],[object Object],[object Object],[object Object]
BANG! We Failed!

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Test driven development_for_php

  • 1. Test-Driven Development Francis Fish, Pharmarketeer [email_address] This is distributed under the  Creative Commons Attribution-Share Alike 2.0  licence Download from:  http://www.pharmarketeer.com/tdd.html
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