Ruby - a tester's best friend

Ruby - a tester’s best friendPeter Lind @peter_lind

Ruby, wait what? Born in 1993 Object-oriented Dynamic Open Source Elegant syntax Focus on programmer happiness Great for scripting And for apps Ruby On Rails?

Basics [array] {hash_key: hash_value} {hash_key => hash_value} do |var| <block body> end { |var| <block body> } class ClassName <class body> end def method_name <method body> end local_variable, @instance_variable, @@class_variable, Constant, $global

Basics ruby script.rb IRB gems – gem install <library> rake – Rakeﬁle

How to install Use version 1.9.2 OSX / Linux – Might already have it – If not, use RVM • http://beginrescueend.com/rvm/install/ Windows – Use Railsinstaller • http://railsinstaller.org/

Culture Ruby is your friend, not your parent

Culture Ruby is your friend, not your parent Everything can be redeﬁned

Culture Ruby is your friend, not your parent Everything can be redeﬁned Readability

Culture Ruby is your friend, not your parent Everything can be redeﬁned Readability TDD/BDD

Tools Sinatra – Sinatra is a DSL for quickly creating web applications in Ruby with minimal effort – http://www.sinatrarb.com/

Tools Sinatra – Sinatra is a DSL for quickly creating web applications in Ruby with minimal effort – http://www.sinatrarb.com/ Cucumber – BDD that talks to domain experts ﬁrst and code second – http://cukes.info/

CucumberFeatures– Describes scenarios– In the Gherkin language, almost English (or over 40 other)– Given, When, Then

CucumberFeatures– Describes scenarios– In the Gherkin language, almost English (or over 40 other)– Given, When, ThenStep deﬁnitions– In Ruby– Available for Java, .NET others

Tools Sinatra – Sinatra is a DSL for quickly creating web applications in Ruby with minimal effort – http://www.sinatrarb.com/ Cucumber – BDD that talks to domain experts ﬁrst and code second – http://cukes.info/ Capybara – Acceptance test framework for web applications – https://github.com/jnicklas/capybara

Cucumber and Capybara example http://www.youtube.com/watch?v=S5XQTOVTPYY https://github.com/peterlind/cuke4all

Java Web AppTests

pets.feature PickleFeature: Manage pets Scenario: List pets Given a pet exists with name: "Fido", sort: 0, weight: 23 When I go to the list pets page Then I should see "Fido" Scenario: Enter a pet Capybara Given I am on the enter pet page And I fill in "Name" with "Rufus" And I fill in "Sort" with "Cat" And I fill in "Weight" with "8" And I press "Save" Then a pet should exist with name: "Rufus", weight: 8

THANKS!peter.lind@valtech.se@peter_lind

Ruby - a tester's best friend

by Peter Lind on Sep 15, 2011

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