vendor/gems/rspec-1.1.2/lib/spec/story/runner/story_mediator.rb

   1  module Spec
   2   module Story
   3     module Runner
   4
   5       class StoryMediator
   6         def initialize(step_group, runner, options={})
   7           @step_group = step_group
   8           @stories = []
   9           @runner = runner
  10           @options = options
  11         end
  12
  13         def stories
  14           @stories.collect { |p| p.to_proc }
  15         end
  16
  17         def create_story(title, narrative)
  18           @stories << Story.new(title, narrative, @step_group, @options)
  19         end
  20
  21         def create_scenario(title)
  22           current_story.add_scenario Scenario.new(title)
  23         end
  24
  25         def create_given(name)
  26           current_scenario.add_step Step.new('Given', name)
  27         end
  28
  29         def create_given_scenario(name)
  30           current_scenario.add_step Step.new('GivenScenario', name)
  31         end
  32
  33         def create_when(name)
  34           current_scenario.add_step Step.new('When', name)
  35         end
  36
  37         def create_then(name)
  38           current_scenario.add_step Step.new('Then', name)
  39         end
  40
  41         def run_stories
  42           stories.each { |story| @runner.instance_eval(&story) }
  43         end
  44
  45         private
  46         def current_story
  47           @stories.last
  48         end
  49
  50         def current_scenario
  51           current_story.current_scenario
  52         end
  53
  54         class Story
  55           def initialize(title, narrative, step_group, options)
  56             @title = title
  57             @narrative = narrative
  58             @scenarios = []
  59             @step_group = step_group
  60             @options = options
  61           end
  62
  63           def to_proc
  64             title = @title
  65             narrative = @narrative
  66             scenarios = @scenarios.collect { |scenario| scenario.to_proc }
  67             options = @options.merge(:steps => @step_group)
  68             lambda do
  69               Story title, narrative, options do
  70                 scenarios.each { |scenario| instance_eval(&scenario) }
  71               end
  72             end
  73           end
  74
  75           def add_scenario(scenario)
  76             @scenarios << scenario
  77           end
  78
  79           def current_scenario
  80             @scenarios.last
  81           end
  82         end
  83
  84         class Scenario
  85           def initialize(name)
  86             @name = name
  87             @steps = []
  88           end
  89
  90           def to_proc
  91             name = @name
  92             steps = @steps.collect { |step| step.to_proc }
  93             lambda do
  94               Scenario name do
  95                 steps.each { |step| instance_eval(&step) }
  96               end
  97             end
  98           end
  99
 100           def add_step(step)
 101             @steps << step
 102           end
 103         end
 104
 105         class Step
 106           def initialize(type, name)
 107             @type = type
 108             @name = name
 109           end
 110
 111           def to_proc
 112             type = @type
 113             name = @name
 114             lambda do
 115               send(type, name)
 116             end
 117           end
 118         end
 119       end
 120
 121     end
 122   end
 123 end