unit tests arent enough

Unit Tests Aren’t Enoughand your QA guy can’t regression test for you...

Will this test save you?

def test_create_new_widget post :create_widget assert_response :successend

With this code?

# view:<%= form_for :widget %> <%= submit_tag “Create” %><% end %>

# controller:def create; puts “doing nothing”; end

The Individual Pieces Work...

... but your application does not!

What do we do?

QA Guy!

Benefits

Would he find the bug from before?

What if the bug came from a refactoring?

YOU are ultimately responsible for your app

Let’s Automate

Hello, Selenium!

The Code

The API

Programmers still do the testing!

Hello, Cucumber!

QA Can Write This

Scenario: Searching on Google Given I am on the homepage When I fill in “q” with “cukes” And I press “Google Search” Then I should see “cukes.info”

Scenario: Searching on Google

Given I am on the homepage

When I fill in “q” with “cukes”

And I press “Google Search”

Then I should see “cukes.info”

The Output

Scenario: Searching on Google # features/google_search.feature:6 Given I am on the homepage # features/step_definitions/webrat_steps.rb:6 When I fill in "q" with "cukes" # features/step_definitions/webrat_steps.rb:29 And I press "Google Search" # features/step_definitions/webrat_steps.rb:17 Then I should see "cukes.info" # features/step_definitions/webrat_steps.rb:121

1 scenario (1 passed)4 steps (4 passed)0m10.206s

Webrathttp://gitrdoc.com/brynary/webrat/tree/master

Webrat Caveats

• Won’t detect elements hidden by a class

• Won’t click things that aren’t links or buttons (usually not a big deal)

Beyond Webrat

When /^I search for “([^”])”$/ do |s| When %Q|I fill in “q” with “#{s}”| And %Q|I press “Google Search”|end

Cucumber Structure

features/*.featurefeatures/step_definitions/*_steps.rbfeatures/support/*.rb

Cuke-Talkerhttp://github.com/trotter/cuke-talker

Commands

• Given, When, Then, And

• !

• define step

• run feature

• show history

• show step definitions

Resources

• http://cukes.info

• http://gitrdoc.com/brynary/webrat/tree/master

• http://github.com/trotter/cuke-talker

Credits

http://www.flickr.com/photos/jflinchbaugh/3967895188/http://www.flickr.com/photos/vizzzual-dot-com/2738586453/http://www.flickr.com/photos/frangipani_photograph/3137183488/http://www.flickr.com/photos/chrismoncus/1366654132/