Saturday, November 13, 2010

Running Jasmine BDD Specs in the Terminal

I had a pretty bad week with Ruby on Windows 7 64 bit: I tried to set up DBI and ODBC on my work machine but I did not have any luck with that.

I needed something to feel good about, so I decided to set up Jasmine BDD spec execution in the terminal on OS X.

I downloaded the standalone zip file from Jasmine's web site and made sure that the sample specs are executing fine with the SpecRunner.html file in the browser.


I wanted to execute the exact same specs but instead of running it in the browser, I wanted to do it in terminal.

Michael Hines' blog post was a pretty good starting point. He used JazzMoney, so I tried it myself.

I easily found JazzMoney's installation instructions on their github page.


It has prerequisites: I had to install harmony first.

I picked ruby-1.9.2-head from RVM, created a new gemset called "jasmine" and I got started.
Harmony has dependencies as well, I had to get stackdeck and johnson before I installed harmony.
$ gem install stackdeck
$ gem install johnson -v "2.0.0.pre3"
This is where it turned ugly. Stackdeck got installed fine, but johnson had some issues.

Building native extensions. This could take a while...
ERROR: Error installing johnson:
ERROR: Failed to build gem native extension.

After Googling the error I found out that johnson is not playing nice with Ruby beyond 1.8.7. I went back to RVM and started out by installing a new version of Ruby.
Here is what I did:
$ rvm install 1.8.7-p249
$ rvm 1.8.7-p249
$ rvm gemset create jasmine
$ rvm 1.8.7-p249@jasmine // switched to jasmine gemset
$ gem install stackdeck
$ gem install johnson -v "2.0.0.pre3"
$ gem install harmony // I tested harmony with a quick test in IRB, worked fine
$ gem install jazz_money
I did not have any problems with installing the gems under 1.8.7.

I had to create a Ruby script that sets up the test suite and this is the file I ran in the terminal. My run_specs.rb file was placed into the root folder right next to SpecRunner.html:
require 'rubygems'
require 'jazz_money'

javascript_files = [
  'spec/SpecHelper.js',
  'spec/PlayerSpec.js'
]

jasmine_spec_files = [
  'src/Player.js',
  'src/Song.js'
]

JazzMoney::Runner.new(javascript_files, jasmine_spec_files).call
I ran the file with the following parameters:
$  ruby run_specs.rb -f n -c
Success! This is the output I received in the terminal:


I did one more thing: I created a shell script, this way I did not have to remember all the command line arguments.
I saved this in the specrunner.sh file:
ruby run_specs.rb -f n -c
I can now invoke my specs by running "sh specrunner.sh" in the terminal.

5 comments:

cjkihlbom said...

Or, you could just use Evergreen: http://github.com/jnicklas/evergreen

adomokos said...

Awesome! Thanks for the link!

jcontonio said...

Worked great after I realized you were using the downloaded zip and not the Jasmine gem. Thanks a ton!

adomokos said...

Sweet!

jcontonio said...

Now combine this with the watchr gem and get autotest functionality

https://gist.github.com/701965

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