The document summarizes Masaki Nakagawa's presentation on web application testing tools for Perl and Rails. It discusses Rails testing frameworks like Test::Unit, RSpec, and Cucumber. It also compares the strengths and weaknesses of Perl and Rails testing and highlights the Capybara browser automation library and Brownie, a similar library inspired by Capybara for Perl applications.

1. Brownie
Masaki Nakagawa / @ikasam_a
Yokohama.pm #8
(yokohama.pm.org/2011/10/yokohamapm-8.html)
2011 11 18

2. YAPC::Asia Tokyo 2011
yapcasia.org/2011/
2011 11 18

3. Perl Testing
Consideration
(seen from other languages)
Masaki Nakagawa
YAPC::Asia Tokyo 2011 (yapcasia.org/2011/talk/80)
2011 11 18

4. Rails Testing
• Perspective
• UnitTest, End-to-End
• Frameworks
• Test::Unit (+ Shoulda), RSpec, Cucumber
• Browser Integration
• Capybara (rack-test, Selenium, Envjs, ...)
• Test Double
• rspec-mocks, rr, WebMock
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5. Weakness
• Expectation and Verification
• vs. rr, rspec-mocks, mocha, ...
• Browser Integration API
• vs. Capybara, Webrat, ...
• Naming of Test Double modules
• Test::Mock::Guard is “Stub” module
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6. Comparision
• Pros
• TAP-based Test Description
• Many Helpful Modules
• Cons
• Non-Uniform Browser Integration
• Poor Expectation and Verification
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7. Capybara
github.com/jnicklas/capybara
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8. Capybara simulates how a real user would
interact with a web application.
It is agnostic about the driver running your
tests and currently comes with Rack::Test
and Selenium support built in.
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9. within("#session") do
fill_in 'Login', :with => 'user@example.com'
fill_in 'Password', :with => 'password'
end
click_link 'Sign in'
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10. The DSL
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11. Drivers
RackTest
Selenium
HtmlUnit
WebKit (QtWebKit)
Envjs
Zombie.js
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12. Brownie
github.com/masaki/Brownie
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13. Inspired by Capybara
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14. OO Style
my $session = Brownie::Session->new;
$session->visit(‘http://example.com’);
$session->fill_in(Login => 'user@example.com');
$session->fill_in(Password => 'password');
$session->click_link('Sign in');
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15. DSL Style (Not yet)
use Brownie::DSL;
visit ‘http://example.com/’;
fill_in Login => 'user@example.com';
fill_in Password => 'password';
click_link 'Sign in';
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16. Drivers
Selenium (Selenium::Remote::Driver)
Mechanize (WWW::Mechanize)
HtmlUnit (WWW::HtmlUnit)
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17. Vocabulary
visit, current_url, current_path,
status_code, response_headers,
title, source, screenshot,
click_link, click_button, click_on,
fill_in, choose, check, uncheck,
select, unselect, attach_file,
execute_script, evaluate_script,
find_element, find_elements,
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18. DEMO
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19. Future
• Mechanize Driver (!!!)
• Scoping (within “selector” => sub { ... })
• Embedded Selenium Server (Alien::SeleniumRC)
• HtmlUnit Driver
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20. Patches and Collaborators
Welcome !!!
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21. Thank you
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