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# Copyright 2013 The Servo Project Developers. See the COPYRIGHT
# file at the top-level directory of this distribution.
#
# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
# option. This file may not be copied, modified, or distributed
# except according to those terms.
import fileinput
import re
import subprocess
import sys
def mutate_line(file_name, line_number):
lines = open(file_name, 'r').readlines()
lines[line_number - 1] = re.sub(r'\s&&\s', ' || ', lines[line_number - 1])
out = open(file_name, 'w')
out.writelines(lines)
out.close()
def mutation_test(file_name, tests):
lineNumbers = []
for line in fileinput.input(file_name):
if re.search(r'\s&&\s', line):
lineNumbers.append(fileinput.lineno())
for lineToMutate in lineNumbers:
print "Mutating {0} at line {1}".format(file_name, lineToMutate)
mutate_line(file_name, lineToMutate)
print "compling mutant {0}-{1}".format(file_name, lineToMutate)
sys.stdout.flush()
subprocess.call('python mach build --release', shell=True)
print "running tests for mutant {0}-{1}".format(file_name, lineToMutate)
sys.stdout.flush()
for test in tests:
testStatus = subprocess.call("python mach test-wpt {0} --release".format(test.encode('utf-8')), shell=True)
if testStatus != 0:
print('Failed in while running `python mach test-wpt {0} --release`'.format(test.encode('utf-8')))
print "mutated file {0} diff".format(file_name)
sys.stdout.flush()
subprocess.call('git --no-pager diff {0}'.format(file_name), shell=True)
print "reverting mutant {0}-{1}".format(file_name, lineToMutate)
sys.stdout.flush()
subprocess.call('git checkout {0}'.format(file_name), shell=True)
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