Description

Bahia - where commandline acceptance tests are easy, the people are festive and onde nasceu capoeira. In other words, aruba for any non-cucumber test framework. Works across rubies on 1.8 and 1.9.

Usage

Say you want to test your gem’s executable, blarg:

describe "blarg" do
  it "prints usage without args" do
    blarg
    stdout.should == 'Usage: blarg COMMAND'
  end

  it 'prints error for double blarging' do
    blarg "blarg"
    stderr.should == "Bad human! No double blarging allowed"
    process.success?.should == false
  end

  it "prints message for quoted args" do
    blarg %[please handle 'blarg multiple' "blarg words"]
    stdout.should == "Why u like quote so much?"
    process.success?.should == true
  end
end

As you can see, bahia provided helpers stdout, stderr and process as well as automatically creates a method to invoke your executable.

Setting it up in your test,spec/helper.rb is just a simple include:

require 'bahia'

# for rspec
Rspec.configure {|c| c.include Bahia }

# for minitest
class MiniTest::Unit::TestCase
  include Bahia
end

# for bacon
class Bacon::Context
  include Bahia
end

# for your preferred framework
include some shit ...

If the above doesn’t automagically work for you, configure Bahia before including it:

Bahia.command = 'blarg 3.0'
Bahia.command_method = 'not blarg'
Bahia.project_directory = '/path/to/gem/root/dir'

About

Bahia uses open3 and is dead simple - so simple that you probably should’ve read the source instead of this readme. Ha!

Edit: open3 don’t work for 1.9 rubies so the joke is on me.

Limitations

Can’t capture process in jruby yet.

Contributing

See here

Credits

• @spicycode - initial testing
• @rsanheim - allow project_directory override