class FeatureDefinitions

Constants

IDENTITY

Attributes

test_proc[R]

Public Class Methods

context=(context) click to toggle source

# File lib/feature_definitions.rb, line 25
def self.context=(context)
  Thread.current[:FeatureDefinitionsTLS] = context
end

define_feature(name, &feature_test_block) click to toggle source

# File lib/feature_definitions.rb, line 4
def self.define_feature(name, &feature_test_block)
  feature = new(&feature_test_block)
  meta_class = class << self; self end
  meta_class.__send__(:define_method, name) do |&feature_impl_block|
    if block_given?
      feature.enabled?(&feature_impl_block)
    end
    feature
  end
end

new(&block) click to toggle source

# File lib/feature_definitions.rb, line 17
def initialize(&block)
  if block_given?
    @test_proc = block.to_proc
  else
    @test_proc = IDENTITY
  end
end

Public Instance Methods

context() click to toggle source

# File lib/feature_definitions.rb, line 29
def context
  Thread.current[:FeatureDefinitionsTLS]
end

enabled?() { || ... } click to toggle source

# File lib/feature_definitions.rb, line 33
def enabled?(&block)
  eval_test_proc.tap do |verdict|
    if verdict and block_given?
      yield
    end
  end
end

eval_test_proc() click to toggle source

# File lib/feature_definitions.rb, line 41
def eval_test_proc
  if test_proc.arity == 0
    context.instance_exec(&test_proc)
  else
    test_proc.call(context)
  end
end