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Fixed issue 28 -- apply mutations to code changed in a different file #47

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Fixed issue 28 -- apply mutations to code changed in a different file #47

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37 changes: 33 additions & 4 deletions universalmutator/genmutants.py
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Original file line number Diff line number Diff line change
Expand Up @@ -120,8 +120,8 @@ def main():
print("USAGE: mutate <sourcefile> [<language>] [<rule1> <rule2>...]",
"[--noCheck] [--cmd <command string>] [--mutantDir <dir>]",
"[--lines <coverfile> [--tstl]] [--mutateTestCode] [--mutateBoth]",
"[--ignore <file>] [--compile <file>] [--noFastCheck] [--swap]",
"[--redundantOK] [--showRules] [--only <rule>]")
"[mutateChange <file>][--ignore <file>] [--compile <file>] [--noFastCheck]",
"[--swap][--redundantOK] [--showRules] [--only <rule>]")
print()
print(" --noCheck: skips compilation/comparison and just generates mutant files")
print(" --cmd executes command string, replacing MUTANT with the mutant name, and uses return code")
Expand All @@ -132,6 +132,7 @@ def main():
print(" --mutateInStrings: mutate inside strings (not just turn to empty string)")
print(" --mutateTestCode: mutate only test code")
print(" --mutateBoth: mutate both test and normal code")
print(" --mutateChange: only mutates the lines that have changed from the source file, to other file.")
print(" --ignore <file>: ignore lines matching patterns in <file>")
print(" --compile <file>: compile <file> instead of source (solidity handler only)")
print(" --comby: use comby as the method of mutating code")
Expand Down Expand Up @@ -259,6 +260,17 @@ def main():
args.remove(mdir)
if mdir[-1] != "/":
mdir += "/"

changeFile = None
try:
changepos = args.index("--mutateChange")
except ValueError:
changepos = -1

if changepos != -1:
changeFile = args[changepos + 1]
args.remove("--mutateChange")
args.remove(changeFile)

ignoreFile = None
try:
Expand Down Expand Up @@ -381,15 +393,32 @@ def main():
# remove non-ascii characters (comby issue)
line_processed = line.encode('ascii', 'ignore').decode()
source.append(line_processed)
skippedLines = []
if changeFile is not None:
print("ONLY MUTATING LINES CHANGED IN", changeFile)
change = []

with open(changeFile, 'r') as file:
for line in file:
# remove non-ascii characters (comby issue)
line_processed = line.encode('ascii', 'ignore').decode()
change.append(line_processed)

with open(changeFile, 'r') as changef, open(sourceFile, 'r') as sourcef:
for i in range (min(len(change),len(source))):

if change[i] == source[i]:

skippedLines.append(change[i])

mutants = []

if comby:
mutants = mutator.mutants_comby(source, ruleFiles=rules, mutateTestCode=mutateTestCode, mutateBoth=mutateBoth,
ignorePatterns=ignorePatterns, ignoreStringOnly=not mutateInStrings, fuzzing=fuzz, language=ending)
ignorePatterns=ignorePatterns, ignoreStringOnly=not mutateInStrings, fuzzing=fuzz, language=ending,skipLines=skippedLines)
else:
mutants = mutator.mutants_regexp(source, ruleFiles=rules, mutateTestCode=mutateTestCode, mutateBoth=mutateBoth,
ignorePatterns=ignorePatterns, ignoreStringOnly=not mutateInStrings, fuzzing=fuzz)
ignorePatterns=ignorePatterns, ignoreStringOnly=not mutateInStrings, fuzzing=fuzz, skipLines=skippedLines)
if fuzz:
if len(mutants) == 0:
sys.exit(255)
Expand Down
9 changes: 7 additions & 2 deletions universalmutator/mutator.py
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Original file line number Diff line number Diff line change
Expand Up @@ -81,7 +81,8 @@ def parseRules(ruleFiles, comby=False):


def mutants_comby(source, ruleFiles=None, mutateTestCode=False, mutateBoth=False,
ignorePatterns=None, ignoreStringOnly=False, fuzzing=False, language=".generic"):
ignorePatterns=None, ignoreStringOnly=False, fuzzing=False, language=".generic", skipLines=None):

if ruleFiles is None:
ruleFiles = ["universal.rules"]
comby = Comby()
Expand Down Expand Up @@ -128,7 +129,7 @@ def mutants_comby(source, ruleFiles=None, mutateTestCode=False, mutateBoth=False
return mutants

def mutants_regexp(source, ruleFiles=None, mutateTestCode=False, mutateBoth=False,
ignorePatterns=None, ignoreStringOnly=False, fuzzing=False):
ignorePatterns=None, ignoreStringOnly=False, fuzzing=False,skipLines = None):
if ruleFiles is None:
ruleFiles = ["universal.rules"]
print("MUTATING WITH RULES:", ", ".join(ruleFiles))
Expand Down Expand Up @@ -172,6 +173,10 @@ def mutants_regexp(source, ruleFiles=None, mutateTestCode=False, mutateBoth=Fals
if mutateTestCode and (not mutateBoth):
continue
skipLine = False

if skipLines and l in skipLines:
skipLine = True

for lhs in ignoreRules:
if lhs.search(l):
skipLine = True
Expand Down