Class: MrProper::DataBlock

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

Constant Summary collapse

EXAMPLES_PER_PROPERTY =
200

Instance Method Summary collapse

Constructor Details

#initialize(spec = nil, &block) ⇒ DataBlock

Returns a new instance of DataBlock.



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# File 'lib/mrproper/data_block.rb', line 7

def initialize(spec = nil, &block)
  @spec = spec
  @block = block
end

Instance Method Details

#callObject



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# File 'lib/mrproper/data_block.rb', line 16

def call
  to_proc.call
end

#dataObject



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# File 'lib/mrproper/data_block.rb', line 12

def data
  EXAMPLES_PER_PROPERTY.times.map { call }.uniq
end

#to_procObject



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# File 'lib/mrproper/data_block.rb', line 20

def to_proc
  return @block if @block
  
  case @spec
  when Array
    if @spec.size == 1
      Proc.new { rand(20).times.map { DataBlock.new(@spec.first).call } }
    else
      Proc.new { @spec.map { |s| DataBlock.new(s).call }}
    end
  when Hash
    if @spec.size == 1
      Proc.new do
        {}.tap do |h|
          rand(20).times.each do
            h[DataBlock.new(@spec.keys.first).call] = DataBlock.new(@spec.values.first).call
          end
        end
      end
    else
      Proc.new do
        {}.tap do |h|
          @spec.each do |k, v|
            h[DataBlock.new(k).call] = DataBlock.new(v).call
          end
        end
      end
    end
  when Range
    case @spec.begin
    when Integer
      Proc.new { @spec.begin + rand(@spec.end - @spec.begin) }
    when Float
      Proc.new { @spec.begin + rand * (@spec.end - @spec.begin) }
    else
      Proc.new { @spec }
    end
  when Class
    if @spec == Integer
      DataBlock.new(-500..500).to_proc
    elsif @spec == Float
      DataBlock.new(-5.0..5.0).to_proc
    elsif @spec == String
      Proc.new { String.random(rand(10)) }
    elsif @spec == Symbol
      Proc.new { DataBlock.new(String).call.to_sym }
    elsif @spec == NilClass
      Proc.new { nil }
    end
  else
    Proc.new { @spec }
  end
end