Testing ruby (not rails) script with cucumber on Mac OS X - ruby

Question

I am trying to get cucumber working on my Mac for testing a ruby script. I use cucumber with rails and have never had an issue setting it up there, but seem to be having quite an issue creating it just for a ruby script that I want to test.
Script background: I have created a script that serves mysql data via a TCPServer connection and I want to be able to test this functionality. So ideally I launch the script so that it accepts incoming connections and depending on what I am attempting to get to it presents an error or the data end point.
Here is what I have and the error is below the settings:
features/support/env.rb
require_relative File.expand_path('../../../lib/requirements',FILE)
require "capybara/cucumber"
require 'capybara/dsl'
require "rspec"
# Capybara.default_driver = :selenium
Capybara.app_host = 'http://localhost:7125'
World(Capybara.app = "Api")
World(Capybara::DSL)
World(RSpec::Matchers)
features/rmws.feature
Feature: Test conversion of mysql output to JSON
Scenario:
Given the index page can be reached
And There is MYSQL data
When converted to hash
And and /mysql location is hit
Then the data is show in JSON
features/step_definitions/rwms_step_definitions.rb
Given(/^the index page can be reached$/) do
visit 'http://localhost:7125'
expect(page).to have_content 'This is the index page'
end
Given(/^There is MYSQL data$/) do
pending # express the regexp above with the code you wish you had
end
When(/^converted to hash$/) do
pending # express the regexp above with the code you wish you had
end
When(/^and \/mysql location is hit$/) do
pending # express the regexp above with the code you wish you had
end
Then(/^the data is show in JSON$/) do
pending # express the regexp above with the code you wish you had
end
Output
$ cucumber
Feature: Test conversion of mysql output to JSON
Scenario: # features/rmws.feature:3
wrong argument type String (expected Module) (TypeError)
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/rb_support/rb_language.rb:150:in `extend'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/rb_support/rb_language.rb:150:in `block in extend_world'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/rb_support/rb_language.rb:149:in `each'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/rb_support/rb_language.rb:149:in `extend_world'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/rb_support/rb_language.rb:94:in `begin_rb_scenario'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/rb_support/rb_language.rb:128:in `begin_scenario'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/language_support/language_methods.rb:14:in `before'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/runtime/support_code.rb:112:in `block in fire_hook'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/runtime/support_code.rb:111:in `each'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/runtime/support_code.rb:111:in `fire_hook'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/runtime.rb:107:in `before'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/runtime.rb:98:in `before_and_after'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/runtime.rb:82:in `block in with_hooks'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/runtime/support_code.rb:120:in `call'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/runtime/support_code.rb:120:in `block (3 levels) in around'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/language_support/language_methods.rb:9:in `block in around'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/language_support/language_methods.rb:97:in `call'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/language_support/language_methods.rb:97:in `execute_around'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/language_support/language_methods.rb:8:in `around'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/runtime/support_code.rb:119:in `block (2 levels) in around'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/runtime/support_code.rb:123:in `call'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/runtime/support_code.rb:123:in `around'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/runtime.rb:94:in `around'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/runtime.rb:81:in `with_hooks'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/ast/tree_walker.rb:13:in `execute'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/ast/scenario.rb:32:in `block in accept'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/ast/scenario.rb:79:in `with_visitor'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/ast/scenario.rb:31:in `accept'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/ast/tree_walker.rb:58:in `block in visit_feature_element'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/ast/tree_walker.rb:170:in `broadcast'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/ast/tree_walker.rb:57:in `visit_feature_element'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/ast/feature.rb:38:in `block in accept'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/ast/feature.rb:37:in `each'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/ast/feature.rb:37:in `accept'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/ast/tree_walker.rb:27:in `block in visit_feature'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/ast/tree_walker.rb:170:in `broadcast'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/ast/tree_walker.rb:26:in `visit_feature'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/ast/features.rb:28:in `block in accept'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/ast/features.rb:17:in `each'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/ast/features.rb:17:in `each'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/ast/features.rb:27:in `accept'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/ast/tree_walker.rb:21:in `block in visit_features'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/ast/tree_walker.rb:170:in `broadcast'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/ast/tree_walker.rb:20:in `visit_features'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/runtime.rb:49:in `run!'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/lib/cucumber/cli/main.rb:47:in `execute!'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/gems/cucumber-1.3.11/bin/cucumber:13:in `<top (required)>'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/bin/cucumber:23:in `load'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/bin/cucumber:23:in `<main>'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/bin/ruby_executable_hooks:15:in `eval'
/Users/lovell/.rvm/gems/ruby-2.0.0-p451/bin/ruby_executable_hooks:15:in `<main>'
$

Answer 1

You could use rake to run cucumber tests, I use it for a gem that I wrote. You can find additional doc here
require 'bundler'
require 'rake/clean'
require 'rake/testtask'
require 'cucumber'
require 'cucumber/rake/task'
require 'rspec/core/rake_task'
Cucumber::Rake::Task.new(:features) do |t|
t.cucumber_opts = "features --format html -o #{CUKE_RESULTS} --format pretty --no-source -x"
t.fork = false
end

Answer 2

Run cucumber --init to get the testing suite set up.