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import os
import sys
import argparse
import re
class Checks(object):
class CheckError(Exception):
pass
def __init__(self, filename, prefix):
self.checks = []
self.lines = []
self.check_no_output = False
self.filename = filename
self.prefix = prefix
def readStdin(self):
self.lines = [l.rstrip("\r\n") for l in sys.stdin.readlines()]
def readChecks(self):
with open(self.filename) as f:
for line in f:
match = re.search("{}: NO_OUTPUT".format(self.prefix), line)
if match is not None:
self.check_no_output = True
return
match = re.search(
"{}: num_threads=([0-9]+) (.*)$".format(self.prefix), line
)
if match is not None:
num_threads = int(match.group(1))
for i in range(num_threads):
self.checks.append(match.group(2))
continue
def check(self):
# If no checks at all, then nothing to do
if len(self.checks) == 0 and not self.check_no_output:
print("Nothing to check for")
return
# Check if we are expecting no output
if self.check_no_output:
if len(self.lines) == 0:
return
else:
raise Checks.CheckError(
"{}: Output was found when expecting none.".format(self.prefix)
)
# Run through each check line and see if it exists in the output
# If it does, then delete the line from output and look for the
# next check line.
# If you don't find the line then raise Checks.CheckError
# If there are extra lines of output then raise Checks.CheckError
for c in self.checks:
found = False
index = -1
for idx, line in enumerate(self.lines):
if re.search(c, line) is not None:
found = True
index = idx
break
if not found:
raise Checks.CheckError("{}: Did not find: {}".format(self.prefix, c))
else:
del self.lines[index]
if len(self.lines) != 0:
raise Checks.CheckError(
"{}: Extra output: {}".format(self.prefix, self.lines)
)
# Setup argument parsing
parser = argparse.ArgumentParser(
description="""This script checks output of
a program against "CHECK" lines in filename"""
)
parser.add_argument("filename", default=None, help="filename to check against")
parser.add_argument(
"-c",
"--check-prefix",
dest="prefix",
default="CHECK",
help="check prefix token default: %(default)s",
)
command_args = parser.parse_args()
# Do the checking
checks = Checks(command_args.filename, command_args.prefix)
checks.readStdin()
checks.readChecks()
checks.check()
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