Class: Spec::Distributed::Recorder

Inherits:
Object
  • Object
show all
Defined in:
lib/spec/distributed/slave_runner.rb

Overview

This is used as a reporter and just records method invocations. It is then sent back to the master and all the invocations are replayed there on the master’s real reporter. Nifty, eh?

Instance Method Summary collapse

Constructor Details

#initialize(watermark) ⇒ Recorder

Returns a new instance of Recorder.



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# File 'lib/spec/distributed/slave_runner.rb', line 100

def initialize(watermark)
  @watermark = watermark
  @invocations = []
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *args) ⇒ Object 



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# File 'lib/spec/distributed/slave_runner.rb', line 105

def method_missing(method, *args)
  marshallable_args = args.map {|arg| marshallable_dup(arg)}

  if method.to_s == 'add_behaviour'
    # Watermark each behaviour description so the final report says where it ran
    marshallable_args[0].description << " (#{@watermark})" 
  end
  @invocations << [method, *marshallable_args]
end

Instance Method Details

#marshallable_dup(o) ⇒ Object 



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# File 'lib/spec/distributed/slave_runner.rb', line 115

def marshallable_dup(o)
  begin
    dupe = o.dup
    dupe.instance_variables.each do |ivar|
      if Proc === dupe.instance_variable_get(ivar)
        dupe.__send__(:remove_instance_variable, ivar)
      end
    end
    dupe
  rescue TypeError # Some objects like nil and false cannot be duped, and there is no easy way to check for all cases
    o
  end
end

#replay(target) ⇒ Object 



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# File 'lib/spec/distributed/slave_runner.rb', line 129

def replay(target)
  @invocations.each do |method, *args|
    target.__send__(method, *args)
  end
end