Sha256: 969c2a3a6ba0be272417c2f2c4024daf0bcfd3ce46fb609976e805d474cd968f
Contents?: true
Size: 1.71 KB
Versions: 8
Compression:
Stored size: 1.71 KB
Contents
require 'yaml'
require 'equalizer'
require 'memoizable'
require 'ice_nine'
module MutestSpec
class Warning
# Install our $stderr warning proxy only if the top level program is RSpec
#
# Mutest performs certain mutations which emit warnings that will obviously
# not be on our whitelist. We don't need to have enforce our warning assertions
# then anyways
def self.hook_under_rspec
$stderr = EXTRACTOR if $PROGRAM_NAME.end_with?('/rspec')
end
def self.assert_no_warnings
return if EXTRACTOR.warnings.empty?
fail UnexpectedWarnings, EXTRACTOR.warnings.to_a
end
class UnexpectedWarnings < StandardError
MSG = 'Unexpected warnings: %s'.freeze
def initialize(warnings)
super(MSG % warnings.join("\n"))
end
end # UnexpectedWarnings
class Extractor < DelegateClass(IO)
PATTERN = /\A(?:.+):(?:\d+): warning: (?:.+)\n\z/
include Equalizer.new(:whitelist, :seen, :io), Memoizable
def initialize(io, whitelist)
@whitelist = whitelist
@seen = Set.new
@io = io
super(io)
end
def write(message)
return super if PATTERN !~ message
add(message.chomp)
self
end
def warnings
seen.dup
end
memoize :warnings
private
def add(warning)
return if whitelist.any?(&warning.public_method(:end_with?))
seen << warning
end
attr_reader :whitelist, :seen, :io
end # Extractor
warnings = Pathname.new(__dir__).join('warnings.yml').freeze
whitelist = IceNine.deep_freeze(YAML.safe_load(warnings.read))
EXTRACTOR = Extractor.new(STDERR, whitelist)
end # Warning
end # MutestSpec
Version data entries
8 entries across 8 versions & 1 rubygems