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BDDwith Symfony2

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I who am everzet senior from-birth PHP developer at

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UnitTest Test code automatically TIMELINE

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UnitTest TDD Test code automatically Write tests first TIMELINE

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UnitTest TDD Test code automatically Write tests first TIMELINE Dan North BDD

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BDD ♮ evolution of TDD

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- Oh, man, i hate evolutions! What’s wrong with TDD?

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Test-Driven Development - Oh, man, i hate evolutions! What’s wrong with TDD?

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Test-Driven Development Are we really talking about tests??? But how to test something, that not exists yet? - Oh, man, i hate evolutions! What’s wrong with TDD?

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Test-Driven Development software design In reality, we’re talking bout - Oh, man, i hate evolutions! What’s wrong with TDD?

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Test-Driven Development Behavior © 2003, Dan North

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BDDwas introduced as set of conventions over TDD

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BDDwas introduced as set of conventions over TDD Test method names should be sentences testFindsCustomerById() testFailsForDuplicateCustomers() tests, that class finds customer by ID tests, that class fails for dup customers

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BDDwas introduced as set of conventions over TDD Test method names should be sentences testFindsCustomerById() testFailsForDuplicateCustomers() Test method names should start with “should” word shouldFindCustomerById() shouldFailForDuplicateCustomers() tests, that class finds customer by ID tests, that class fails for dup customers class should find customer by ID class should fail for dup customers

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BDDwas introduced as set of conventions over TDD Test method names should be sentences testFindsCustomerById() testFailsForDuplicateCustomers() Test method names should start with “should” word shouldFindCustomerById() shouldFailForDuplicateCustomers() tests, that class finds customer by ID tests, that class fails for dup customers class should find customer by ID class should fail for dup customers TestCase class should be nouns in test method sentences class CustomerTableTest extends \PHPUnitTestCase { /** * @Test */ shouldFindCustomerById() ... } CustomerTable should find customer by ID

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ASSERTIONS are TEST-oriented too assertEquals($expected, $actual) assertGreaterThan($expected, $actual) assertInstanceOf($class, $actual) TESTing

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ASSERTIONS are TEST-oriented too assertEquals($expected, $actual) assertGreaterThan($expected, $actual) assertInstanceOf($class, $actual) $actual should be Equals to $expected $actual should be GreaterThan $expected $actual should be InstanceOf $class TESTing Describing

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UnitTest TDD Test code automatically Write tests first Spec BDD Design first TIMELINE Dan North BDD

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Specification-oriented BDD Frameworks

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*Spec RSpec by Dave Astels

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*Spec RSpec by Dave Astels JSpec by TJ Holowaychuk

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*Spec RSpec by Dave Astels JSpec by TJ Holowaychuk Fabulous by Alex Rudakov

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RSpec # bowling_spec.rb require 'bowling' describe Bowling, "#score" do it "returns 0 for all gutter game" do bowling = Bowling.new 20.times { bowling.hit(0) } bowling.score.should == 0 end end

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RSpec # bowling_spec.rb require 'bowling' describe Bowling, "#score" do it "returns 0 for all gutter game" do bowling = Bowling.new 20.times { bowling.hit(0) } bowling.score.should == 0 end end SPECIFICATION Write class , not UnitTEST

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BDD SCENARIO ORIENTED photo by dsearls

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VOCABULARY photo by dsearls photo by Horia Varlan

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VOCABULARY photo by dsearls photo by Horia Varlan for testers

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VOCABULARY photo by dsearls photo by Horia Varlan for testers for analysts

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VOCABULARY photo by dsearls photo by Horia Varlan for testers for analysts for developers

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VOCABULARY photo by dsearls photo by Horia Varlan for testers for analysts for developers for business

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VOCABULARY photo by dsearls photo by Horia Varlan for testers for analysts for developers for business 1

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VOCABULARY photo by dsearls photo by Horia Varlan testers analysts developers business ELIMINATING some of the AMBIGUITY and MISCOMMUNICATION

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COMMUNICATIONS photo by joshfassbind.com

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In order to [A] As a [B] I need [C] Story:

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A the benefit or value of the feature B the person (or role) who will benefit C some feature Story: In order to [A] As a [B] I need [C]

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Its strength is that it forces you to identify the value of delivering a story when you first define it. © Dan North Story: In order to [A] As a [B] I need [C] A the benefit or value of the feature B the person (or role) who will benefit C some feature

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A story’s behaviour is simply its acceptance criteria! if the system fulfills all the acceptance criteria, it’s behaving correctly; if it doesn’t, it isn’t. Story:

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In order to ... As a ... I need ... Story:

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Given some initial context (the givens), When an event occurs, Then ensure some outcomes. In order to ... As a ... I need ... Story:

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Given some initial context (the givens), When an event occurs, Then ensure some outcomes. Given some initial context (the givens), When an event occurs, Then ensure some outcomes. Story: In order to ... As a ... I need ...

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Scenario 1: Scenario 2: Story: Given some initial context (the givens), When an event occurs, Then ensure some outcomes. Given some initial context (the givens), When an event occurs, Then ensure some outcomes. In order to ... As a ... I need ...

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UnitTest TDD Test code automatically Write tests first Spec BDD Design first Scenario BDD Analyse first TIMELINE Dan North BDD

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GHERKINDSL photo by isobel.gordon

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Given some initial context (the givens), When an event occurs, Then ensure some outcomes. In order to ... As a ... I need ... Given some initial context (the givens), When an event occurs, Then ensure some outcomes. Scenario 1: Scenario 2: Story:

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Given some initial context (the givens) When an event occurs Then ensure some outcomes In order to ... As a ... I need ... Given some initial context (the givens) When an event occurs Then ensure some outcomes Scenario: 1st scenario title Scenario: 2nd scenario title Feature: Feature description

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Etant donné some initial context (the givens) Lorsque an event occurs Alors ensure some outcomes In order to ... As a ... I need ... Etant donné some initial context (the givens) Lorsque an event occurs Alors ensure some outcomes Scénario: 1st scenario title Scénario: 2nd scenario title Fonctionnalité: Feature description # language: fr

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ͳΒ͹ some initial context (the givens) ͔͠͠ an event occurs લఏ ensure some outcomes In order to ... As a ... I need ... ͳΒ͹ some initial context (the givens) ͔͠͠ an event occurs લఏ ensure some outcomes γφϦΦ: 1st scenario title γφϦΦ: 2nd scenario title ϑΟʔνϟ: Feature description # language: ja

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Допустим some initial context (the givens) Когда an event occurs То ensure some outcomes In order to ... As a ... I need ... Допустим some initial context (the givens) Когда an event occurs То ensure some outcomes Сценарий: 1st scenario title Сценарий: 2nd scenario title Функционал: Feature description # language: ru

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Let go and haul some initial context (the givens) Blimey! an event occurs Aye ensure some outcomes In order to ... As a ... I need ... Let go and haul some initial context (the givens) Blimey! an event occurs Aye ensure some outcomes Heave to: 1st scenario title Heave to: 2nd scenario title Ahoy matey!: Feature description # language: en-pirate

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Let go and haul some initial context (the givens) Blimey! an event occurs Aye ensure some outcomes Let go and haul some initial context (the givens) Blimey! an event occurs Aye ensure some outcomes Heave to: Heave to: Ahoy matey!: # language: en-pirate

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Acceptance criteria should be executable!

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No content

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In order to ... As a ... I need ... Scenario: 1st scenario title Scenario: 2nd scenario title Feature: Feature description Given some initial context (the givens) When an event occurs Then ensure some outcomes Given some initial context (the givens) When an event occurs Then ensure some outcomes

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1. feature 2. scenario 3. step ... ... 2. scenario 3. step ... ... Given some initial context (the givens) When an event occurs Then ensure some outcomes In order to ... As a ... I need ... Given some initial context (the givens) When an event occurs Then ensure some outcomes Scenario: 1st scenario title Scenario: 2nd scenario title Feature: Feature description feature tree

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DEFINITIONS Given I have a bank account STEP

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DEFINITIONS Given I have a bank account STEP

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DEFINITIONS STEP

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DEFINITIONS STEP Given('/^I have a bank account$/', function() { throw new \Behat\Behat\Exception\Pending(); } ); Given I have a bank account

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DEFINITIONS STEP Given('/^I have a bank account$/', function() { throw new \Behat\Behat\Exception\Pending(); } ); ??? Given I have a bank account

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RESULT STEP TYPES 1. Pending step that throw new \Behat\Behat\Exception\Pending();

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RESULT STEP TYPES 1. Pending step that throw new \Behat\Behat\Exception\Pending(); 2. Undefined step that have no definitions (found)

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RESULT STEP TYPES 1. Pending step that throw new \Behat\Behat\Exception\Pending(); 2. Undefined step that have no definitions (found) 3. Ambiguous step which match multiple definitions

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RESULT STEP TYPES 1. Pending step that throw new \Behat\Behat\Exception\Pending(); 2. Undefined step that have no definitions (found) 3. Ambiguous step which match multiple definitions 4. Failed step that throw \Exception();

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RESULT STEP TYPES 1. Pending step that throw new \Behat\Behat\Exception\Pending(); 2. Undefined step that have no definitions (found) 3. Ambiguous step which match multiple definitions 4. Failed step that throw \Exception(); 5. Skipped step that follows pending/undefined/failed

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RESULT STEP TYPES 1. Pending step that throw new \Behat\Behat\Exception\Pending(); 2. Undefined step that have no definitions (found) 3. Ambiguous step which match multiple definitions 4. Failed step that throw \Exception(); 5. Skipped step that follows pending/undefined/failed 6. Passed step that doesn’t throw exceptions

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DEFINITIONS Given I have a bank account STEP Given('/^I have a bank account$/', function() { throw new \Behat\Behat\Exception\Pending(); } );

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DEFINITIONS Given I have a bank account STEP Given('/^I have a bank account$/', function() { throw new \Behat\Behat\Exception\Pending(); } ); When I deposit 35$

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DEFINITIONS STEP When('/^I deposit (\d+)\$$/', function($dollars) { // $dollars === 35 } ); Given I have a bank account Given('/^I have a bank account$/', function() { throw new \Behat\Behat\Exception\Pending(); } ); When I deposit 35$

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DEFINITIONS STEP When('/^I deposit (\d+)\$$/', function($dollars) { // $dollars === 35 } ); Given I have a bank account Given('/^I have a bank account$/', function() { throw new \Behat\Behat\Exception\Pending(); } ); When I deposit 35$

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DEFINITIONS STEP Given('/^I have a bank account$/', function($world) { throw new \Behat\Behat\Exception\Pending(); } ); When('/^I deposit (\d+)\$$/', function($world, $dollars) { // $dollars === 35 } ); Given I have a bank account When I deposit 35$

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DEFINITIONS STEP Given('/^I have a bank account$/', function($world) { $world->account = new BankAccount(); } ); When('/^I deposit (\d+)\$$/', function($world, $dollars) { $world->account->deposit($dollars); } ); Given I have a bank account When I deposit 35$

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OUTCOME Then I should have 35$ TESTING

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OUTCOME Then I should have 35$ TESTING Then('/^I should have (\d+)\$$/', function($world, $balance) { if ($balance !== $world->account->getBalance()) { throw new \Exception('Wrong balance!'); } } );

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OUTCOME TESTING Then I should have 35$ ( ) Then('/^I should have (\d+)\$$/', function($world, $balance) { assertEquals($balance, $world->account->getBalance()); } ); using PHPUnit Then I should have 35$ Then('/^I should have (\d+)\$$/', function($world, $balance) { if ($balance !== $world->account->getBalance()) { throw new \Exception('Wrong balance!'); } } );

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DEFINITIONS STEP Given('/^I have a bank account$/', function($world) { $world->account = new BankAccount(); } ); $steps->When('/^I deposit (\d+)\$$/', function($world, $dollars) { $world->account->deposit($dollars); } ); $steps->Then('/^I should have (\d+)\$$/', function($world, $balance) { assertEquals($balance, $world->account->getBalance()); } );

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DEFINITIONS STEP Given('/^I have a bank account$/', function($world) { $world->account = new BankAccount(); } )-> When('/^I deposit (\d+)\$$/', function($world, $dollars) { $world->account->deposit($dollars); } )-> Then('/^I should have (\d+)\$$/', function($world, $balance) { assertEquals($balance, $world->account->getBalance()); } );

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BehatBundle

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USAGE BehatBundle 1. Install: http://symfony2bundles.org/Behat/BehatBundle

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USAGE BehatBundle 1. Install: 2. Setup: $ app/console behat:test:bundle --init Application\\HelloBundle . ᵋᴷᴷ src/Application/HelloBundle/Tests/Features ᵓᴷᴷ steps ᴹ ᵋᴷᴷ steps.php ᵋᴷᴷ support ᵓᴷᴷ bootstrap.php ᵋᴷᴷ env.php write and put your features here place step definition files here example step definition file place support scripts here bootstrap environment (context) initialization http://symfony2bundles.org/Behat/BehatBundle

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USAGE BehatBundle 1. Install: 2. Setup: $ app/console behat:test:bundle --init Application\\HelloBundle . ᵋᴷᴷ src/Application/HelloBundle/Tests/Features ᵓᴷᴷ steps ᴹ ᵋᴷᴷ steps.php ᵋᴷᴷ support ᵓᴷᴷ bootstrap.php ᵋᴷᴷ env.php write and put your features here place step definition files here example step definition file place support scripts here bootstrap environment (context) initialization 3. Colorize: $ app/console behat:test:bundle Application\\HelloBundle http://symfony2bundles.org/Behat/BehatBundle

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BUNDLEDSteps

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BUNDLEDSteps Browser Steps Given /^I am on(?: the)? (.*)$/ When /^I go to(?: the)? (.*)$/ When /^I (?:follow|click)(?: the)? "([^"]*)"(?: link)*$/ When /^I go back$/ When /^I go forward$/ When /^I send (POST|PUT|DELETE) to (.*) with:$/ When /^I follow redirect$/

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BUNDLEDSteps Browser Steps Given /^I am on(?: the)? (.*)$/ When /^I go to(?: the)? (.*)$/ When /^I (?:follow|click)(?: the)? "([^"]*)"(?: link)*$/ When /^I go back$/ When /^I go forward$/ When /^I send (POST|PUT|DELETE) to (.*) with:$/ When /^I follow redirect$/ Form Steps When /^I fill in "([^"]*)" with "([^"]*)"$/ When /^I select "([^"]*)" from "([^"]*)"$/ When /^I uncheck "([^"]*)"$/ When /^I uncheck "([^"]*)"$/ When /^I attach the file at "([^"]*)" to "([^"]*)"$/ When /^I press "([^"]*)" in (.*) form$/

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BUNDLEDSteps Request Steps Then /^Request method is (.*)$/ Then /^Request has cookie "([^"]*)"$/ Then /^Request has not cookie "([^"]*)"$/ Then /^Request cookie "([^"]*)" is "([^"]*)"$/

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BUNDLEDSteps Request Steps Then /^Request method is (.*)$/ Then /^Request has cookie "([^"]*)"$/ Then /^Request has not cookie "([^"]*)"$/ Then /^Request cookie "([^"]*)" is "([^"]*)"$/ Response Steps Then /^Response status code is (\d+)$/ Then /^I should see "([^"]*)"$/ Then /^I should not see "([^"]*)"$/ Then /^I should see element "([^"]*)"$/ Then /^Header "([^"]*)" is set to "([^"]*)"$/ Then /^Header "([^"]*)" is not set to "([^"]*)"$/ Then /^I was redirected$/ Then /^I was not redirected$/ Then /^Print output$/

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Feature: User logins

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In order to have extended abilities As a site user I need to be able to login Feature: User logins

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In order to have extended abilities As a site user I need to be able to login Scenario: Existing user can login Feature: User logins

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In order to have extended abilities As a site user I need to be able to login Scenario: Existing user can login Scenario: Non-existing user can’t login Feature: User logins

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Given a site have “everzet” user with “qwerty” password And I am on the “/login” When I fill in “username” with “everzet” And I fill in “password” with “qwerty” And I press “login” in login form Then I should see “Welcome, everzet” In order to have extended abilities As a site user I need to be able to login Scenario: Existing user can login Given a site have “everzet” user with “qwerty” password And I am on the “/login” When I fill in “username” with “someone” And I fill in “password” with “qwerty” And I press “login” in login form Then I should see “Login or password is incorrect” Scenario: Non-existing user can’t login Feature: User logins

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Given a site have “everzet” user with “qwerty” password And I am on the “/login” When I fill in “username” with “everzet” And I fill in “password” with “qwerty” And I press “login” in login form Then I should see “Welcome, everzet” In order to have extended abilities As a site user I need to be able to login Scenario: Existing user can login Given a site have “everzet” user with “qwerty” password And I am on the “/login” When I fill in “username” with “someone” And I fill in “password” with “qwerty” And I press “login” in login form Then I should see “Login or password is incorrect” Scenario: Non-existing user can’t login Feature: User logins

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Given I am on the “/login” page When I fill in “username” with “everzet” And I fill in “password” with “qwerty” And I press “login” in login form Then I should see “Welcome, everzet” In order to have extended abilities As a site user I need to be able to login Scenario: Existing user can login Given I am on the “/login” page When I fill in “username” with “someone” And I fill in “password” with “qwerty” And I press “login” in login form Then I should see “Login or password is incorrect” Scenario: Non-existing user can’t login Feature: User logins

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Given I am on the “/login” page When I fill in “username” with “everzet” And I fill in “password” with “qwerty” And I press “login” in login form Then I should see “Welcome, everzet” In order to have extended abilities As a site user I need to be able to login Scenario: Existing user can login Given a site have “everzet” user with “qwerty” password Background: Given I am on the “/login” page When I fill in “username” with “someone” And I fill in “password” with “qwerty” And I press “login” in login form Then I should see “Login or password is incorrect” Scenario: Non-existing user can’t login Feature: User logins

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Given I am on the “/login” page When I fill in “username” with “everzet” And I fill in “password” with “qwerty” And I press “login” in login form Then I should see “Welcome, everzet” In order to have extended abilities As a site user I need to be able to login Scenario: Existing user can login Given a site have users: Background: Given I am on the “/login” page When I fill in “username” with “someone” And I fill in “password” with “qwerty” And I press “login” in login form Then I should see “Login or password is incorrect” Scenario: Non-existing user can’t login | username | password | | everzet | qwerty | Feature: User logins

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Given I am on the “/login” page When I fill in “username” with “everzet” And I fill in “password” with “qwerty” And I press “login” in login form Then I should see “Welcome, everzet” In order to have extended abilities As a site user I need to be able to login Scenario: Existing user can login Given a site have users: Background: Given I am on the “/login” page When I fill in “username” with “someone” And I fill in “password” with “qwerty” And I press “login” in login form Then I should see “Login or password is incorrect” Scenario: Non-existing user can’t login | username | password | | everzet | qwerty | Feature: User logins

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Given I am on the “/login” page When I fill in “username” with “” And I fill in “password” with “” And I press “login” in login form Then I should see “” In order to have extended abilities As a site user I need to be able to login Scenario Outline: Only existing users can login Given a site have users: Background: | username | password | | everzet | qwerty | Feature: User logins

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Given I am on the “/login” page When I fill in “username” with “” And I fill in “password” with “” And I press “login” in login form Then I should see “” In order to have extended abilities As a site user I need to be able to login Scenario Outline: Only existing users can login Given a site have users: Background: | username | password | | everzet | qwerty | Examples: Feature: User logins

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Given I am on the “/login” page When I fill in “username” with “” And I fill in “password” with “” And I press “login” in login form Then I should see “” In order to have extended abilities As a site user I need to be able to login Scenario Outline: Only existing users can login Feature: User logins Given a site have users: Background: | username | password | | everzet | qwerty | Examples: | username | password | message | | everzet | qwerty | Welcome, everzet | | someone | pa$$word | Login or password is incorrect |

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USAGE 1. Colorize: $ app/console behat:test:bundle Application\\HelloBundle

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USAGE 1. Colorize: 2. Write missing steps: Given('/^a site have users:$/', function($world, $table) { $em = $world->getClient()-> getKernel()-> getContainer()-> get('doctrine.orm.entity_manager'); // remove all users from test db with EntityManager foreach ($table->getRowHash() as $row) { // persist new user into test db with EntityManager // $row[‘username’] AND $row[‘password’] } $em->flush(); }); $ app/console behat:test:bundle Application\\HelloBundle

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http://Behat.org One more thing

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In-browser testing and other frameworks support

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Sahi

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Sahi Goutte

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Sahi Goutte Selenium

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Sahi Goutte Selenium sfBrowser

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Sahi Goutte Selenium sfBrowser Symfony2 Client

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Sahi Goutte Selenium sfBrowser Symfony2 Client through one clean API

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M!"#

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createClient(); $driver = new Mink\Driver\Symfony2ClientDriver($client); $session = new Mink\Session($driver); $session->visit('/hello/Fabien'); $page = $session->getPage(); $this->assertTrue($page->hasContent('Hello Fabien')); } public function testIndexWithSahi() { $driver = new Mink\Driver\SahiDriver('SAHI_SESSION_ID'); $session = new Mink\Session($driver); $session->visit('/hello/Fabien'); $page = $session->getPage(); $this->assertTrue($page->hasContent('Hello Fabien')); } }

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createClient(); $driver = new Mink\Driver\Symfony2ClientDriver($client); $session = new Mink\Session($driver); $session->visit('/hello/Fabien'); $page = $session->getPage(); $this->assertTrue($page->hasContent('Hello Fabien')); } public function testIndexWithSahi() { $driver = new Mink\Driver\SahiDriver('SAHI_SESSION_ID'); $session = new Mink\Session($driver); $session->visit('/hello/Fabien'); $page = $session->getPage(); $this->assertTrue($page->hasContent('Hello Fabien')); } }

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Given I am on the “/login” page When I fill in “username” with “” And I fill in “password” with “” And I press “login” in login form Then I should see “” In order to have extended abilities As a site user I need to be able to login Scenario Outline: Only existing users can login Feature: User logins Given a site have users: Background: | username | password | | everzet | qwerty | Examples: | username | password | message | | everzet | qwerty | Welcome, everzet | | someone | pa$$word | Login or password is incorrect |

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Given I am on the “/login” page When I fill in “username” with “” And I fill in “password” with “” And I press “login” in login form Then I should see “” In order to have extended abilities As a site user I need to be able to login Scenario Outline: Only existing users can login Feature: User logins Given a site have users: Background: | username | password | | everzet | qwerty | Examples: | username | password | message | | everzet | qwerty | Welcome, everzet | | someone | pa$$word | Login or password is incorrect | @javascript

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http://Behat.org Questions? http://joind.in/2769