Test Driven Developement Workshop (PHP)

This is the PHP code base to use when attending my introduction to TDD workshop

Tasks

Demo 1 (Stack - Abstract Data Type)

As a group we will implement a String Stack (First In, Last Out - FILO) that will conform to the Collection Interface.

Task 1 (Queue - Abstract Data Type)

In pairs you will implement a String Queue (First In, First Out - FIFO) that will conform to the Collection Interface.

Demo 2 (Lunchtime Meal Deal - Simple Application)

As a group we will implement a Simple Application that conforms to the Till Interface to calculate the total cost of a basket based on the lunch time meal deal

• Sandwich £2.00
• Drink £0.90
• Crisps £0.50
• Sandwich, Drink & Crisp £3.00

Task 2 (BOGOF & BTGTHP - Simple Application)

In pairs you will continue to implement the Till Interface to calculate the total cost of a basket based on Baked Beans and Spaghetti Hoop offers

• Baked Beans £0.75

• Spaghetti Hoops £0.80

• Baked Beans Offer: Buy One Get One Free (BOGOF)

  • 2 * Baked Beans = £0.75
  • 3 * Baked Beans = £1.50

• Spaghetti Hoop Offer: Buy Two Get Third Half Price (BTGTHP)

  • 2 * Spaghetti Hoops = £1.60
  • 3 * Spaghetti Hoops = £2.00
  • 4 * Spaghetti Hoops = £2.80

Demo 3 (Ledger - Dependencies: London Style)

As a group we will implement the Ledger Interface using the London / Interaction style of testing

Demo 4 (Ledger - Dependencies: Chicago Style)

As a group we will implement the Ledger Interface using the Chicago / State style of testing

Task 3 (FileLogger - Dependencies: London Style)

In Pairs you need to implement Logger Interface that uses an SplFileObject using the London / Interaction style of testing

Note: When creating the mock of SplFileObject the mock requires you give the first constructor argument.

See Example:

    $file = \Mockery::mock(\SplFileObject::class, ['/dev/null']);

Task 4 (FileLogger - Dependencies: Chicago Style)

In Pairs you need to implement Logger Interface that uses an SplFileObject using the Chicago / State style of testing

Note: the exec may be helpful for setup and assertions

Demo 5 (Integer - Mutation Testing)

Demonstrating how Infection a PHP mutation testing library can be used ensure tests full

Demo 6 (Date Range - Changing the requirements)

Demonstrating how to change the tests when the requirements change.