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How we test our projects
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Terry
November 18, 2012
Programming
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How we test our projects
Rubyconf China 2012
Terry
November 18, 2012
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Transcript
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whoami
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太檑
Terry
@poshboytl
Co-founder of Pragmatic.ly
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Creator of Railscasts-china.com
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Survey
How many people write tests?
How many people use RSpec?
Tools we use
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I love RSpec!
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Bad boy!
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x.should == y
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Straightforward!
asset_equal y, x
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This is just right!
Pillow War!
Peace! Choose what you like!
Try it, instead of following anybody.
Syntax
Syntax Sugar
Syntax Sugar DSL
Is syntax important?
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Syntax is important, that’s the most important reason why we
love Ruby! It also can be the reason we love RSepc!
Syntax is important, that’s the most important reason why we
love Ruby! It also can be the reason we love RSepc! Terry Tai
Let’s talk about RSpec!
Our practices
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Setup phase contains two parts use ‘let’ to initialize data
‘before’ block to do some actions
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Why straightforward is important for us?
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The sugar we don’t like very much
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RSpec done
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Problem of Fixtures
Hard to read Hard to write Hard to maintain
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What’s the password?
What’s the password?
What’s the password? Add new records?
Fixtures separate the data and the tests
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Bullshit!
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What’s the advantage of fixtures?
It’s really fast!!
Some practices for Factory Girl
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Random data is a advantage of factory to fixtures
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Update: If you wanna use LoremIpsum class still need the
gems like forgery or lorem-ipsum.
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How we run tests?
You might see this
But...... I really don’t use it
Tell you a secret
I run my tests manually
Why?
probably, I type :w so frequently and quickly. LOL
probably, I type :w so frequently and quickly. LOL
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Your APM should be high
Slayers Boxer Your APM should be high
Manually run ‘bundle exec rspec spec’ ?
No. It depends.
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bundle exec rspec spec ruby -S rspec spec
Bundler still need time to load
When I can not use ‘bundle exec’ ?
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no spec_helper
Two ways to run tests?
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ruby -S rspec spec ?
bundle exec rspec spec ? ruby -S rspec spec ?
by Gray Bernhardt
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About integration test
RSpec + Capybara(webkit)
Poltergeist looks nice will give it a try
I don’t love it so far Also don’t hate it
Still keep looking
Stub as little as possible only do for Current time
HTTP visiting ...
VCR
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Use different fixture data in integration and unit tests
Integration tests are not for driving development
No mock or stub means slow You can use a
CI server run it for you
if project.open_source?
A hosted continuous integration service for the open source community.
else
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integrity • light weight • It built by ruby (Means
you can hack!!!) • Works pretty well with git • Hook and API is weak
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Hudson and Jenkins • They built by JAVA • Heavy
weight and powerful • a lot of plugins(git, github, emails, hipchat...) • Have nice API
We really did some interesting things with Hudson by HUBOT
http://terrytai.com/
JS tests
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jasminerice gem for work with Rails asset pipeline
jasmine-sinon
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By Ian: https://gist.github.com/4059889
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Look at me, Terry. It’s not a JS conf, ok?
I’d better stop here
Oh, BTW
DHH is the hero in my heart
Thank you!