3 Summarize the information in the given coverage files.
5 Emits the number of rules covered or the percentage of rules covered depending
6 on whether --num-rules has been used to specify the total number of rules.
12 class FileFormatError(Exception):
15 def backend_int_pair(s):
16 backend, sep, value = s.partition('=')
18 raise argparse.ArgumentTypeError("'=' missing, expected name=value")
20 raise argparse.ArgumentTypeError("Expected name=value")
22 raise argparse.ArgumentTypeError("Expected name=value")
23 return backend, int(value)
26 parser = argparse.ArgumentParser(description=__doc__)
27 parser.add_argument('input', nargs='+')
28 parser.add_argument('--num-rules', type=backend_int_pair, action='append',
29 metavar='BACKEND=NUM',
30 help='Specify the number of rules for a backend')
31 args = parser.parse_args()
35 for input_filename in args.input:
36 with open(input_filename, 'rb') as input_fh:
37 data = input_fh.read()
40 backend, _, data = data.partition('\0')
45 raise FileFormatError()
46 backend, = struct.unpack("%ds" % len(backend), backend)
50 raise FileFormatError()
51 rule_id, = struct.unpack("Q", data[:8])
54 if rule_id == (2 ** 64) - 1:
56 covered_rules[backend] = covered_rules.get(backend, {})
57 covered_rules[backend][rule_id] = covered_rules[backend].get(rule_id, 0) + 1
59 num_rules = dict(args.num_rules)
60 for backend, rules_for_backend in covered_rules.items():
61 if backend in num_rules:
62 print "%s: %3.2f%% of rules covered" % (backend, (float(len(rules_for_backend.keys())) / num_rules[backend]) * 100)
64 print "%s: %d rules covered" % (backend, len(rules_for_backend.keys()))
66 if __name__ == '__main__':