Class: InEvery

Inherits:
Object
  • Object
show all
Defined in:
lib/in_every.rb

Overview

Randomly execute a block of code x number of times in every number of runs Example:

in_every = 5.times.in_every(20) do
  ##some really cool code
end

#will return value of the block if executed or nil if nothing happened
in_every.execute

Defined Under Namespace

Classes: SetupException

Instance Method Summary collapse

Constructor Details

#initialize(enum, executions, method) ⇒ InEvery

create new in every instance

Parameters:

enum

enumeration number for cycling through executions

executions

number or times the proc is to be randomly executed

method

What to execute randomly in a cycle

Returns:

new instance of InEvery

Raises:



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# File 'lib/in_every.rb', line 29

def initialize(enum, executions, method)
  @executions = (executions - 1)
  @enum = enum
  @method = method
  generate_occurances
  raise SetupException.new("occurancies must be greater than executions") if @enum.max > @executions
end

Instance Method Details

#execute(*args) ⇒ Object

execute the given proc if randomly

Parameters:

args

arguments required to execute the proc

Returns:

the result of the block or nil if nothing was executed



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# File 'lib/in_every.rb', line 45

def execute *args
  @counter ||= 0
  if @counter == @execution_points.first
    result = @method.call(*args)
    @execution_points.delete_at(0)
  end
  if @counter == @executions
    @counter = nil
    generate_occurances
  else
    @counter += 1
  end
  result
end