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Testing
Testing
Testing
Testing
Testing
Testing
Testing
Testing
Testing
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Testing
Testing
Testing
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Testing
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Testing

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Transcript

  • 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(quot;http://myserver/login.phpquot;); $this->assertWantedPattern(quot;Please login to continuequot;); $this->setField(quot;usernamequot;, quot;MyTestUserquot;); $this->setField(quot;passwordquot;, quot;t0ps3cr3tquot;); $this->clickSubmit(quot;Loginquot;); $this->assertWantedPattern(quot;You are logged inquot;);
  • 7. Testing in Java beginAt(quot;login.jspquot;); assertTextInElement(quot;h1quot;, quot;Please login to continuequot;); setFormElement(quot;usernamequot;, quot;MyTestUserquot;); setFormElement(quot;passwordquot;, quot;t0ps3cr3tquot;); submit(); assertTextInElement(quot;h1quot;, quot;You are logged inquot;);
  • 8. Testing in Rails visit login_path assert_contain quot;Please login to continuequot; fill_in quot;usernamequot;, :with => quot;MyTestUserquot; fill_in quot;passwordquot;, :with => quot;t0ps3cr3tquot; click_button quot;Loginquot; assert_contain quot;You are logged inquot;
  • 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 => quot;Sparrowquot; assert_response :redirect assert_equal quot;Black Pearlquot;, 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 quot;another shipquot; do |ship| @ship_to_enter = Ship.find(ship) end Given quot;my shipquot; do Story: Attacking other ships @my_ship = Ship.find_by_captain(quot;Sparrowquot;) As Captain Sparrow end I attack another ship So I can buy more rum Given /my $number_of_mateys maties/ do |number_of_mateys| @ship_to_enter.attackers = number_of_mateys end Scenario: Attack first ship Given another ship When quot;we attach the other shipquot; do And my ship @my_ship.attacks(@ship_to_enter) And my 20 mateys end When we attack the other ship Then 1 pirate dies Then /$pirates_lost pirate dies/ do |pirates_lost| assert_equal @my_schip.crew - pirates_lost, @ship_to_enter.attackers And we steel 1000 pieces of gold 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 quot;another shipquot; do |ship| @ship_to_enter = Ship.find(ship) end Given quot;my shipquot; do @my_ship = Ship.find_by_captain(quot;Sparrowquot;) end Given /my $number_of_mateys maties/ do |number_of_mateys| @ship_to_enter.attackers = number_of_mateys end When quot;we attach the other shipquot; do @my_ship.attacks(@ship_to_enter) end Then /$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(quot;#arrrrcamp rocksquot;) TwitterAPI.expects(:get_last_tweet).returns(response) get 'index' assert_equal quot;#arrrrcamp rocksquot;, 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| quot;matey#{n}quot; end Factory.define :ship do |f| should quot;only find big shipsquot; 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

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