The document discusses different types of software testing: 1) Test Driven Development follows the red-green-refactor process of adding tests, making them fail, then writing code to pass the tests and refactoring code. It uses implementation, regression, and unit tests. 2) Unit, functional, and integration tests are described. Unit tests check individual components, functional tests check object lifecycles, and integration tests check overall application functionality through scenarios and stories. 3) Various languages and frameworks for writing tests are shown including PHP, Java, Rails, Mocha, RSpec, and different approaches to test data like fixtures, factories, mocking, and stubbing.

1. Testing

2. Test Driven Development
• Implementation
• Red-Green-Refactor
• Regression Tests

3. Implementation
• Test what should happen
• Test what should not happen

4. Red-Green-Refactor
Add a test
Run all tests
Write some code
Run the tests again
Refactor code

5. Regression Tests
Change environment
Change code
Is everything still working

6. Testing in php
$this->get("http://myserver/login.php");
$this->assertWantedPattern("Please login to continue");
$this->setField("username", "MyTestUser");
$this->setField("password", "t0ps3cr3t");
$this->clickSubmit("Login");
$this->assertWantedPattern("You are logged in");

7. Testing in Java
beginAt("login.jsp");
assertTextInElement("h1", "Please login to continue");
setFormElement("username", "MyTestUser");
setFormElement("password", "t0ps3cr3t");
submit();
assertTextInElement("h1", "You are logged in");

8. Testing in Rails
visit login_path
assert_contain "Please login to continue"
fill_in "username", :with => "MyTestUser"
fill_in "password", :with => "t0ps3cr3t"
click_button "Login"
assert_contain "You are logged in"

9. Test Types
• Unit
• Functional
• Integration

10. Unit
• Most basic level of testing
• Model tests in Rails

11. Unit Testing
class ShipTest
class Ship
def test_crew
attr_accessor :captain
ship = Ship.new
attr_accessor :maties
ship.captain = 1
ship.mateys = 20
def crew
captain + maties
assert_equal 21, ship.crew
end
end
end
end

12. Functional
• Test lifecycle of objects
• Controller tests in Rails

13. Functional Testing
class ShipsController
def enter_other_ship
@ship = Ship.find_captain(params[:captain])
@ship.gold += 1000
@ship.save
redirect_to :action => 'show_loot'
end
end class ShipsControllerTest
def test_entering_other_ship
post 'enter_other_ship', :captain => "Sparrow"
assert_response :redirect
assert_equal "Black Pearl", assign(:ship).name
assert_equal 1000, assigns(:ship).gold
end
end

14. Integration
• Overall application functionalities
• Walk through a series of events
• View Tests / Stories

15. Integration Testing
def test_attacking_other_ships
Given "another ship" do |ship|
@ship_to_enter = Ship.find(ship)
end
Given "my ship" do
Story: Attacking other ships @my_ship = Ship.find_by_captain("Sparrow")
As Captain Sparrow end
I attack another ship
So I can buy more rum Given /my $number_of_mateys maties/ do |number_of_mateys|
@ship_to_enter.attackers = number_of_mateys
Scenario: Attack first ship end
Given another ship When "we attach the other ship" do
And my ship @my_ship.attacks(@ship_to_enter)
And my 20 mateys end
When we attack the other ship
Then 1 pirate dies Then /$pirates_lost pirate dies/ do |pirates_lost|
And we steel 1000 pieces of gold assert_equal @my_schip.crew - pirates_lost, @ship_to_enter.attackers
end
Then /we steel $pieces_of_gold pieces of gold/ do |pieces_of_gold|
assert_equal pieces_of_gold, @my_ship.gold
end
end

16. Integration Testing
Story: Attacking other ships
As Captain Sparrow
I attack another ship
So I can buy more rum
Scenario: Attack first ship
Given another ship
And my ship
And my 20 mateys
When we attack the other ship
Then 1 pirate dies
And we steel 1000 pieces of gold

17. def test_attacking_other_ships
Given "another ship" do |ship|
@ship_to_enter = Ship.find(ship)
end
Given "my ship" do
@my_ship = Ship.find_by_captain("Sparrow")
end
Given /my $number_of_mateys maties/ do |number_of_mateys|
@ship_to_enter.attackers = number_of_mateys
end
When "we attach the other ship" do
@my_ship.attacks(@ship_to_enter)
end
Then /$pirates_lost pirate dies/ do |pirates_lost|
assert_equal @my_schip.crew - pirates_lost, @ship_to_enter.attackers
end
Then /we steel $pieces_of_gold pieces of gold/ do |pieces_of_gold|
assert_equal pieces_of_gold, @my_ship.gold
end
end

18. Test Data
• Mock/stub
• Fixtures
• Factories

19. Mocking & Stubbing
def test_getting_tweet_on_homepage
response = mock
response.stubs(:authorization).returns(true)
response.stubs(:last_tweet).resturns("#arrrrcamp rocks")
TwitterAPI.expects(:get_last_tweet).returns(response)
get 'index'
assert_equal "#arrrrcamp rocks", assigns(:tweet).body
end
- Mocha
- Rspec
- Flex Mock

20. Fixtures
pirates.yml ships.yml
captain_jack_sparrow: black_pearl:
name: Jack Sparrow name: The Black Pearl
enemy: Royal Navy max_crew: 85
captain: captain_jack_sparrow
interceptor:
name: The Interceptor
max_crew: 150
captain: captain_jack_sparrow

21. Factories
Factory.sequence :pirate do |n|
"matey#{n}"
end
Factory.define :ship do |f| should "only find big ships" do
f.name 'Pirateship' Factory(:ship, :max_crew => 500)
f.max_crew 100 Factory(:ship, :max_crew => 200)
f.captain { Factory.next(:pirate) }
end ships = Ship.big_ones
assert_equal 1, ships.size
end
- Factory Girl
- Machinist
- Object Daddy
- Foundry
- Fixjour

22. Questions