Acceptance & Integration Testing With Behat (PHPNw2011)

Acceptance & Integration Testing Using Behat Ben Waine Email: ben@ben-waine.co.uk Twitter: @bwaineSunday, 9 October 11

Roadmap •Intro To Behaviour Driven Development •Problems We Are Trying to solve at Sky With BDD •Behat •API Testing with Behat •UI Testing with Behat •Data Driven Testing •Is Behat solving our problem?Sunday, 9 October 11

Me Software Engineer PHP Developer Sky Bet PHP / MySQL Stack PHPUnit / Selenium / BehatSunday, 9 October 11

Behaviour Driven Development (BDD)Sunday, 9 October 11

Behaviour-driven development (BDD) takes the position that you can turn an idea for a requirement into implemented, tested, production-ready code simply and effectively, as long as .... everyone knows what’s going on. - Dan NorthSunday, 9 October 11

Writing tests ﬁrst in a customer friendly language - Drinkwater et al 2011Sunday, 9 October 11

The ProblemSunday, 9 October 11

The Business AnalystSunday, 9 October 11

The TesterSunday, 9 October 11

The DeveloperSunday, 9 October 11

The ProblemSunday, 9 October 11

BehatSunday, 9 October 11

Resistance is futile.......Sunday, 9 October 11

What Does It Test? Scripts API’s Web Pages ModelsSunday, 9 October 11

Integration Testing != Unit TestingSunday, 9 October 11

Anatomy Of A Behat TestSunday, 9 October 11

Sunday, 9 October 11

My Amazing PHP Conference Website!Sunday, 9 October 11

Writing Behat Tests $ben > cd /path/to/projects/tests $ben > behat --initSunday, 9 October 11

Writing Behat TestsSunday, 9 October 11

Feature Files Feature: Home Page When visiting the PHPCon site As a site visitor I need to be able to see what ` conferences are coming upSunday, 9 October 11

ScenariosScenario: Get all conferences Given there is conference data in the database When I go to the homepage Then I should see three conferences in a tableSunday, 9 October 11

Scenarios Given (Some Context) When (Some Event) Then (The Outcome)Sunday, 9 October 11

Given (Some Context) Given there is conference data in the databaseSunday, 9 October 11

When (Some Event) When I go to the homepage When I use the findConferences method When I am on "/index.php" When I fill in "search-text" with "PHP"Sunday, 9 October 11

Then (The Outcome) Then I should see three conferences in a table Then I should get a array of three conferences Then I should see "PHPNW"Sunday, 9 October 11

ConferenceService.feature Feature: ConferenceService Class In order to display conferences on PHPCon site As a developer I need to be able to retrieve conferences Scenario: Get all conferences Given there is conference data in the database When I use the findConferences method Then I should get a array of three conferences AND it should contain the conference “PHPNW”Sunday, 9 October 11

Class Methods & AnnotationsSunday, 9 October 11

/ Everybody Stand Back / Behat Knows Regular ExpressionsSunday, 9 October 11

Copy and paste these methods into FeatureContext.phpSunday, 9 October 11

Fill in the Feature Context File public function __construct(array $parameters) { $params = array( user => $parameters[database][username], password => $parameters[database][password], driver => $parameters[database][driver], path => $parameters[database][dbPath], ); $con = DoctrineDBALDriverManager::getConnection($params); $confMapper = new PHPConConferenceMapper($con); $confService = new PHPConConferenceService($confMapper); $this->service = $confService; }Sunday, 9 October 11

Fill in the Feature Context File /** * @Given /^there is conference data in the database$/ */ public function thereIsConferneceDataInTheDatabase() { $fileName = self::$dataDir . sample-conf-session-data.sql; self::executeQueriesInFile($fileName); }Sunday, 9 October 11

Fill in the Feature Context File /** * @When /^I use the findConferences method$/ */ public function iUseTheFindConferencesMethod() { $this->result = $this->service->findConferences(); }Sunday, 9 October 11

Fill in the Feature Context File /** *@Then /^I should get an array of (d+) conferences$/ */ public function iShouldGetAnArrayOfConferences ($numberOfCons) { assertInternalType(array, $this->result); assertEquals($numberOfCons, count($this->result)); }Sunday, 9 October 11

/** * @Then /^it should contain the * conference "([^"]*)"$/ */ public function itShouldContainTheConference ($confName) { $names = array(); foreach($this->result as $conf) { $names[$conf->getName()] = true; } if(!array_key_exists($confName, $names)) { throw new Exception("Conference " . $confName . " not found"); } }Sunday, 9 October 11

Ready to run the tests again.....Sunday, 9 October 11

Failing TestSunday, 9 October 11

Add some application code.....Sunday, 9 October 11

Passing Test!Sunday, 9 October 11

What about the UI?Sunday, 9 October 11

MinkSunday, 9 October 11

Mink Goutte Sahi Zombie.jsSunday, 9 October 11

Extend Mink Context Includes predeﬁned steps Use Bundled steps to create higher level abstractions.Sunday, 9 October 11

Back To: My Amazing PHP Conference Website!Sunday, 9 October 11

Example Using Minks Bundled Steps Scenario: View all conferences on the homepage Given there is conference data in the database When I am on "/index.php" Then I should see "PHPNW" in the ".conferences" element And I should see "PHPUK" in the ".conferences" element And I should see "PBC11" in the ".conferences" elementSunday, 9 October 11

class FeatureContext public function __construct(array $parameters) { $this->useContext(subcontext_alias, new UIContext($parameters)); ! // REST OF FEATURE CONSTRUCTOR } # features/bootstrap/UIContext.php use BehatBehatContextClosuredContextInterface, BehatBehatContextBehatContext, BehatBehatExceptionPendingException; use BehatGherkinNodePyStringNode, BehatGherkinNodeTableNode; require_once mink/autoload.php; class UIContext extends BehatMinkBehatContextMinkContext { }Sunday, 9 October 11

Powerful Headless UI Testing Out The BoxSunday, 9 October 11

Abstracting your scenario Scenario: View all conferences on the homepage Given there is conference data in the database When I am on the "home" page Then I should see "PHPNW" in the "conferences" table And I should see "PHPUK" in the "conferences" table And I should see "PBC11" in the "conferences" tableSunday, 9 October 11

Mink Feature Context class UIContext extends BehatMinkBehatContext MinkContext { protected $pageList = array( "home" => /index.php); protected $elementList = array( "conferences table" => .conferences);Sunday, 9 October 11

/** * @When /^I am on the "([^"]*)" page$/ */ public function iAmOnThePage($pageName) { if(!isset($this->pageList[$pageName])) { throw new Exception( Page Name: not in page list); } $page = $this->pageList[$pageName]; return new When("I am on "$page""); }Sunday, 9 October 11

/** * @Then /^I should see "([^"]*)" in the "([^"]*)"$/ */ public function iShouldSeeInThe($text, $element) { if(!isset($this->elementList[$element])) { throw new Exception( Element: . $element . ‘not in element list); } $element = $this->elementList[$element]; return new Then("I should see "$text" in then "$element" element"); }Sunday, 9 October 11

Javascript Testing with..... SahiSunday, 9 October 11

Back To: My Amazing PHP Conference Website!Sunday, 9 October 11

Example @javascript Scenario: Use autocomplete functionality to complete a input field Given there is conference data in the database When I am on the "home" page When I fill in "search-text" with "PHP" And I wait for the suggestion box to appear Then I should see "PHPNW"Sunday, 9 October 11

Great Reuse @javascript Scenario: Use autocomplete functionality to complete a input field Given there is conference data in the database When I am on the "home" page When I fill in "search-text" with "PHP" And I wait for the suggestion box to appear Then I should see "PHPNW"Sunday, 9 October 11

// In the UIContext class /** * @Given /^I wait for the suggestion box to appear$/ */ public function iWaitForTheSuggestionBoxToAppear() { $this->getSession()->wait(5000, "$(.suggestions-results).children().length > 0" ); }Sunday, 9 October 11

DataSunday, 9 October 11

SQL FixtureSunday, 9 October 11

PhabricSunday, 9 October 11

Back To Our Problem At SkySunday, 9 October 11

Balance.Sunday, 9 October 11

A whole world of trouble.Sunday, 9 October 11

Questions?Sunday, 9 October 11

Links Behat Github Page: https://github.com/Behat/Behat Mink On Github: https://github.com/Behat/Mink Website: http://behat.org/ Phabric On Github: https://github.com/benwaine/ Phabric joind.in: http://joind.in/3592Sunday, 9 October 11

Acceptance & Integration Testing With Behat (PHPNw2011)

by benwaine on Oct 09, 2011

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Acceptance & Integration Testing With Behat (PHPNw2011) — Presentation Transcript