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Versions: 5
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Contents
module Mutant
class Mutator
# Namespace for utility mutators
class Util < self
# Run ulitity mutator
#
# @param [Object]
#
# @api private
#
def self.each(object, &block)
return to_enum(__method__, object) unless block_given?
new(object, block)
self
end
# Test if mutation is new
#
# @param [Object] generated
#
# @return [true]
# if object is new
#
# @return [false]
# otherwise
#
def new?(generated)
input != generated
end
# Mutators that mutates an array of inputs
class Array < self
handle(::Array)
private
# Emit mutations
#
# @return [undefined]
#
# @api private
#
def dispatch
emit_element_presence
emit_element_mutations
emit([])
end
# Emit element mutations
#
# @return [undefined]
#
# @api private
#
def emit_element_mutations
input.each_with_index do |element, index|
dup = dup_input
Mutator.each(element).each do |mutation|
dup[index]=mutation
emit(dup)
end
end
end
# Emit element presence mutations
#
# @return [undefined]
#
# @api private
#
def emit_element_presence
input.each_index do |index|
dup = dup_input
dup.delete_at(index)
emit(dup)
end
end
end
end
end
end
Version data entries
5 entries across 5 versions & 1 rubygems