Class: Bacon::Context

Inherits:
Object show all
Defined in:
lib/bacon.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, &block) ⇒ Context

Returns a new instance of Context.



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# File 'lib/bacon.rb', line 136

def initialize(name, &block)
  @name = name
  @before, @after = [], []
  @block = block
end

Instance Attribute Details

#block ⇒ Object (readonly)

Returns the value of attribute block.



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# File 'lib/bacon.rb', line 134

def block
  @block
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/bacon.rb', line 134

def name
  @name
end

Instance Method Details

#after(&block) ⇒ Object 



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# File 'lib/bacon.rb', line 151

def after(&block);  @after << block; end

#before(&block) ⇒ Object 



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# File 'lib/bacon.rb', line 150

def before(&block); @before << block; end

#behaves_like(*names) ⇒ Object 



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# File 'lib/bacon.rb', line 153

def behaves_like(*names)
  names.each { |name| instance_eval(&Shared[name]) }
end

#change?(&block) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bacon.rb', line 230

def change?(&block); lambda{}.change?(&block); end

#describe(*args, &block) ⇒ Object 



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# File 'lib/bacon.rb', line 218

def describe(*args, &block)
  context = Bacon::Context.new(args.join(' '), &block)
  (parent_context = self).methods(false).each {|e|
    class<<context; self end.send(:define_method, e) {|*args| parent_context.send(e, *args)}
  }
  @before.each { |b| context.before(&b) }
  @after.each { |b| context.after(&b) }
  context.run
end

#it(description, &block) ⇒ Object 



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# File 'lib/bacon.rb', line 157

def it(description, &block)
  return  unless description =~ RestrictName
  block ||= lambda { should.flunk "not implemented" }
  Counter[:specifications] += 1
  run_requirement description, block
end

#raise?(*args, &block) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bacon.rb', line 228

def raise?(*args, &block); block.raise?(*args); end

#run ⇒ Object 



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# File 'lib/bacon.rb', line 142

def run
  return  unless name =~ RestrictContext
  Counter[:context_depth] += 1
  Bacon.handle_specification(name) { instance_eval(&block) }
  Counter[:context_depth] -= 1
  self
end

#run_requirement(description, spec) ⇒ Object 



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# File 'lib/bacon.rb', line 172

def run_requirement(description, spec)
  Bacon.handle_requirement description do
    begin
      Counter[:depth] += 1
      rescued = false
      begin
        @before.each { |block| instance_eval(&block) }
        prev_req = Counter[:requirements]
        instance_eval(&spec)
      rescue Object => e
        rescued = true
        raise e
      ensure
        if Counter[:requirements] == prev_req and not rescued
          raise Error.new(:missing,
                          "empty specification: #{@name} #{description}")
        end
        begin
          @after.each { |block| instance_eval(&block) }
        rescue Object => e
          raise e  unless rescued
        end
      end
    rescue Object => e
      ErrorLog << "#{e.class}: #{e.message}\n"
      e.backtrace.find_all { |line| line !~ /bin\/bacon|\/bacon\.rb:\d+/ }.
        each_with_index { |line, i|
        ErrorLog << "\t#{line}#{i==0 ? ": #@name - #{description}" : ""}\n"
      }
      ErrorLog << "\n"

      if e.kind_of? Error
        Counter[e.count_as] += 1
        e.count_as.to_s.upcase
      else
        Counter[:errors] += 1
        "ERROR: #{e.class}"
      end
    else
      ""
    ensure
      Counter[:depth] -= 1
    end
  end
end

#should(*args, &block) ⇒ Object 



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# File 'lib/bacon.rb', line 164

def should(*args, &block)
  if Counter[:depth]==0
    it('should '+args.first,&block)
  else
    super(*args,&block)
  end
end

#throw?(*args, &block) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bacon.rb', line 229

def throw?(*args, &block); block.throw?(*args); end