Cucumber (Software)

2011-10-17T10:35:26Z

Angry Python: rv replacement of referenced text by Mattwynne (talk)

{{ref improve|date=September 2011}}
{{unreliable sources|date=September 2011}}
{{Infobox Software |
name = Cucumber |
logo = |
screenshot = |
caption = |
developer = [[Aslak Hellesøy]]<ref name="AslakHellesoy">http://aslakhellesoy.com/</ref>, [[Joseph Wilk]]<ref name="JosephWilk">http://blog.josephwilk.net/</ref>, [[Matt Wynne]]<ref name="MattWynne">http://blog.mattwynne.net/</ref>, [[Gregory Hnatiuk]]<ref name="GregoryHnatiuk">https://github.com/ghnatiuk</ref>, [[Mike Sassak]]<ref name="MikeSassak">https://github.com/msassak</ref>
|
latest_release_version = 1.0.2 |<ref name="RubyGems">https://rubygems.org/gems/cucumber/versions/1.0.2</ref>
latest_release_date = July 17, 2011 |
operating_system = [[Cross-platform]] |
genre = [[Behavior driven development]] [[framework (computer science)|framework]] / [[Test tool]] |
license = [[MIT License]] |
website = [http://cukes.info/ cukes.info] |
}}

'''Cucumber''' is a tool for running automated [[acceptance testing|acceptance tests]] written in a [[behavior driven development]] (BDD) style. Cucumber is written in [[Ruby (programming language)|Ruby programming language]].<ref name="TheCucumberBook">http://pragprog.com/book/hwcuc/the-cucumber-book</ref><ref name="TheRSpecBook">http://pragprog.com/book/achbd/the-rspec-book</ref> Cucumber allows the execution of [[software feature|feature]] documentation written in business-facing text.

==Example==

A feature definition, with a single scenario<ref name="DivisionFeature">https://github.com/cucumber/cucumber/blob/master/examples/i18n/en/features/division.feature</ref>:
<pre>
Feature: Division
In order to avoid silly mistakes
Cashiers must be able to calculate a fraction

Scenario: Regular numbers
* I have entered 3 into the calculator
* I press divide
* I have entered 2 into the calculator

Result: Should be 1.5 on the screen
</pre>

The execution of the test implicit in the feature definition above requires the definition, using the Ruby language, of a few "steps"<ref name="CalculatorSteps">https://github.com/cucumber/cucumber/blob/master/examples/i18n/en/features/step_definitons/calculator_steps.rb</ref>:
<source lang="Ruby">
# encoding: utf-8
begin require 'rspec/expectations'; rescue LoadError; require 'spec/expectations'; end
require 'cucumber/formatter/unicode'
$:.unshift(File.dirname(__FILE__) + '/../../lib')
require 'calculator'

Before do
@calc = Calculator.new
end

After do
end

Given /I have entered (\d+) into the calculator/ do |n|
@calc.push n.to_i
end

When /I press (\w+)/ do |op|
@result = @calc.send op
end

Then /the result should be (.*) on the screen/ do |result|
@result.should == result.to_f
end
</source>

==Popularity==
Cucumber has been downloaded over 829,873 times<ref name="RubyGemsStats">http://rubygems.org/gems/cucumber/stats</ref>. According to a [[Mashable]] survey<ref name="MashableSurvey">http://mashable.com/2011/07/26/startup-tools/</ref>, it is the 5th most popular testing framework in use by [[Startup_company|startup]] companies.

==References==
{{reflist}}

== External links ==
*[http://cukes.info/ Cucumber project]
*[https://github.com/cucumber Cucumber (GitHub profile)]
*[http://rubygems.org/gems/cucumber Cucumber (Ruby Gem)]
*[http://rubygems.org/gems/cucumber-rails Cucumber generators and runtime for Rails (Ruby Gem)]
*[http://www.linuxjournal.com/magazine/forge-cucumber At the Forge - Cucumber], by Reuven M. Lerner in the [[Linux Journal]]
*[http://agiletoolkit.libsyn.com/agile_2009_aslak_hellesoy_cucmber_test_framework Agile 2009 - Aslak Hellesoy - Cucumber test framework], podcast by Bob Payne with Aslak Hellesøy
*[http://www.rubyinside.com/cucumber-the-latest-in-ruby-testing-1342.html Cucumber: The Latest in Ruby Testing], by Mike Gunderloy
*[http://cuke4ninja.com/ The Secret Ninja Cucumber Scrolls], by [[Gojko_adzic|Gojko Adzic]] and David de Florinier

[[Category:Software testing tools]]
[[Category:Software using the MIT license]]

{{programming-software-stub}}

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Cucumber (Software)