Behavior Driven Development

Behavior Driven Development
with Cucumber

Cucumber cycle
1: Describe behaviour in plain text
2: Write a step definition in Ruby
3: Run and watch it fail
4. Write code to make the step pass
5. Run again and see the step pass
6. Repeat 2-5 until all green

Given-When-Then
Given
The purpose of givens is to put the system in a known state before the user (or external system) starts interacting with the system (in the When steps)
When
The purpose of When steps is to describe the key action the user performs
Then
The purpose of Then steps is to observe outcomes

Feature file
Story:1.1.0 As a user I want to be able to login to WebCPI
As a InnerWorkings user/administrator
I want to be able to login to the WebCPI
So that I can view all available functions / reports or links assigned to me
Scenario: 1.1.1 User that provides no credentials
Given the user opens "WebCPI Home" page
When the user types "" into the "Your e-mail address" field
And the user types "" into the "Your password" field
And the user clicks the "Log in" button
Then there should be a "Validation" label, with the text "E-mail address field cannot be empty & Password field cannot be empty."
Scenario: 1.1.2 User that provide no username cannot login
Given the user opens "WebCPI Home" page
When the user types "" into the "Your e-mail address" field
And the user types "blabla" into the "Your password" field
And the user clicks the "Log in" button
Then there should be a "Validation" label, with the text "E-mail address field cannot be empty"

Steps file
Given /^the user types "(.*)" into the "(.*)" field$/ do |text, textbox|
$selenium.typefind_TEXTBOX_element(textbox), text)
End
When /^the user clicks (?:on|the) "(.*)" button$/ do |button|
$selenium.clickfind_BUTTON_element(button)
sleep 4
End
Then /^there should be (?:a|an) "(.*)" label, with the text "(.*)"$/ do |textlabel, text|
$selenium.get_text(find_TEXTLABEL_element(textlabel)).should == text.gsub(/|| & /, " ")
end

Web apps in any language – use Cucumber with one of the following:
Webrat – Ruby acceptance testing for web applications
Watir – Drives IE (Windows only)
FireWatir – Drives Firefox on Windows, OSX and GNU/Linux
SafariWatir – Drives Safari (OS X only)
ChromeWatir – Drives Google Chrome
Celerity – Drives a fast headless browser with Javascript support. Examples here
Selenium – Runs any browser (any OS)
Mechanize – Runs a headless browser (any OS)

Behavior Driven Development

by Andre Pretorius on Jun 23, 2009

Accessibility

Categories

Upload Details

Usage Rights

Embed Views

Statistics

Behavior Driven Development — Presentation Transcript

Get analytics right now with SlideShare PRO

An effective way to find out who is viewing your content

Remove ads from all your pages with SlideShare PRO

Your viewers will engage with your content, not ads

http://www.slideshare.net	4
http://www.lmodules.com	1