How to set the path to the classes being tested with Cucumber? - ruby

Question

I've tried following two written guides and one youtube video (http://www.youtube.com/watch?v=8ZmawOCDeyo) and they either skip over an important step (or it just works for them) but not for me.
I have created the following folder structure:
RubyBots\
features\
step_definitions\
creating_a_vehicle_for_an_ai_bot_steps.rb
support\
env.rb
creating_a_vehicle_for_an_ai_bot.feature
vehicle.rb
vehicle_factory.rb
Contents of creating_a_vehicle_for_an_ai_bot_steps.rb:
Given /^I have vehicle factory$/ do
#vehicle_factory = VehicleFactory.new
end
When /^I use it to build a basic vehicle$/ do
#new_vehicle = #vehicle_factory.build
end
Then /^I should have receive a basic vehicle$/ do
#test #new_vechile
end
Contents of vehicle_factory.rb:
class VehicleFactory
def initialize(name)
p name
end
end
Contents of env.rb file:
require 'vehicle_factory'
require 'vehicle'
I execute Cucumber (with no parameters) from inside a CMD window inside the RubyBots directory and I receive the following error:
no such file to load -- vehicle_factory (LoadError)
<internal:lib/rubygems/custom_require>:29:in `require'
<internal:lib/rubygems/custom_require>:29:in `require'
D:/Code/RubyBots/features/support/env.rb:1:in `<top (required)>'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/cucumber-1.0.1/lib/cucumber/rb_support/rb_language.rb:143:in `load'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/cucumber-1.0.1/lib/cucumber/rb_support/rb_language.rb:143:in `load_code_file'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/cucumber-1.0.1/lib/cucumber/runtime/support_code.rb:176:in `load_file'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/cucumber-1.0.1/lib/cucumber/runtime/support_code.rb:78:in `block in load_files!'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/cucumber-1.0.1/lib/cucumber/runtime/support_code.rb:77:in `each'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/cucumber-1.0.1/lib/cucumber/runtime/support_code.rb:77:in `load_files!'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/cucumber-1.0.1/lib/cucumber/runtime.rb:137:in `load_step_definitions'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/cucumber-1.0.1/lib/cucumber/runtime.rb:39:in `run!'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/cucumber-1.0.1/lib/cucumber/cli/main.rb:43:in `execute!'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/cucumber-1.0.1/lib/cucumber/cli/main.rb:20:in `execute'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/cucumber-1.0.1/bin/cucumber:14:in `<top (required)>'
C:/Ruby192/bin/cucumber:19:in `load'
C:/Ruby192/bin/cucumber:19:in `<main>'
If I delete the env.rb file from the support directory I get the follow error when running Cucumber:
Scenario: Using a vehicle factory to build a basic vehicle # Features\creating_a_vehicle_for_an_ai_bot.feature:6
Given I have vehicle factory # Features/creating_a_vehicle_for_an_ai_bot_steps.rb:1
uninitialized constant Object::VehicleFactory (NameError)
./Features/creating_a_vehicle_for_an_ai_bot_steps.rb:2:in `/^I have vehicle factory$/'
Features\creating_a_vehicle_for_an_ai_bot.feature:7:in `Given I have vehicle factory'
When I use it to build a basic vehicle # Features/creating_a_vehicle_for_an_ai_bot_steps.rb:5
Then I should have receive a basic vehicle # Features/creating_a_vehicle_for_an_ai_bot_steps.rb:9
Failing Scenarios:
cucumber Features\creating_a_vehicle_for_an_ai_bot.feature:6 # Scenario: Using a vehicle factory to build a basic vehicle
I've tried everything I can think of and my google-fu is failing me - I hope it's something non-trivial so I'm not embarrassed, but easy to fix, so that I can move on! :)
Thanks for the help!

Answer 1

Your class is called VehicleFactory but you're trying to call vehicle_factory.new in creating_a_vehicle_for_an_ai_bot_steps.rb.
Also, I believe Cucumber expects a particular directory structure:
RubyBots/
features/
step_definitions/
creating_a_vehicle_for_an_ai_bot_steps.rb
support/
env.rb
creating_a_vehicle_for_an_ai_bot.feature
You'll need to require your own files from env.rb appropriately. Ruby doesn't work out any paths for you. One way of auto-requiring files based on symbol name (the way Rails does it) is described in my blog post (it relies on ActiveSupport 2.3 but should be similar for the current version).