free_mutant/lib/mutant/killer.rb

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# encoding: utf-8
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module Mutant
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# Abstract base class for mutant killers
class Killer
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include Adamantium::Flat, AbstractType
include Equalizer.new(:strategy, :mutation, :killed?)
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# Return strategy
#
# @return [Strategy]
#
# @api private
#
attr_reader :strategy
# Return mutation to kill
#
# @return [Mutation]
#
# @api private
#
attr_reader :mutation
# Initialize killer object
#
# @param [Strategy] strategy
# @param [Mutation] mutation
#
# @return [undefined]
#
# @api private
#
def initialize(strategy, mutation)
@strategy, @mutation = strategy, mutation
run_with_benchmark
end
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# Test for kill failure
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#
# @return [true]
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# when killer succeeded
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#
# @return [false]
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# otherwise
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#
# @api private
#
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def success?
mutation.success?(self)
end
memoize :success?
# Test if mutant was killed
#
# @return [true]
# if mutant was killed
#
# @return [false]
# otherwise
#
# @api private
#
def killed?
@killed
end
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# Return runtime of killer
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#
# @return [Float]
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#
# @api private
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#
attr_reader :runtime
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# Return mutated source
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#
# @return [String]
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#
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# @api private
#
def mutation_source
mutation.source
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end
private
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# Run with taking the time
#
# @return [undefined]
#
# @api private
#
def run_with_benchmark
times = Benchmark.measure do
@killed = run
end
@runtime = times.real
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end
# Return subject
#
# @return [Subject]
#
# @api private
#
def subject
mutation.subject
end
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# Run killer
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#
# @return [true]
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# when mutant was killed
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#
# @return [false]
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# otherwise
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#
# @api private
#
abstract_method :run
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end # Killer
end # Mutant