free_mutant/lib/mutant/rspec/killer.rb
2014-04-06 21:43:17 +00:00

104 lines
2.1 KiB
Ruby

# encoding: utf-8
module Mutant
module Rspec
# Runner for rspec tests
class Killer < Mutant::Killer
private
# Run rspec test
#
# @return [true]
# when test is NOT successful
#
# @return [false]
# otherwise
#
# @api private
#
def run
mutation.insert
if example_groups.nil? || example_groups.empty?
$stderr.puts("No rspec example groups found for: #{match_prefixes.join(', ')}")
return false
end
example_groups.each do |group|
return true unless group.run(reporter)
end
false
end
# Return match prefixes
#
# @return [Enumerble<String>]
#
# @api private
#
def match_prefixes
subject.match_prefixes
end
# Return example groups
#
# @return [Array<RSpec::Example>]
#
# @api private
#
def example_groups
match_prefixes.each do |match_expression|
example_groups = find_with(match_expression)
return example_groups unless example_groups.empty?
end
nil
end
memoize :example_groups
# Return example groups that match expression
#
# @param [String] match_expression
#
# @return [Enumerable<String>]
#
# @api private
#
def find_with(match_expression)
all_example_groups.select do |example_group|
example_group.description == match_expression
end
end
# Return all example groups
#
# @return [Enumerable<RSpec::Example>]
#
# @api private
#
def all_example_groups
strategy.example_groups
end
# Choose and memoize RSpec reporter
#
# @return [RSpec::Core::Reporter]
#
# @api private
#
def reporter
reporter_class = RSpec::Core::Reporter
if strategy.rspec2?
reporter_class.new
else
reporter_class.new(strategy.configuration)
end
end
memoize :reporter, freezer: :noop
end # Killer
end # Rspec
end # Mutant