Files
deb-subunit/python/subunit/_to_disk.py
2015-07-13 23:02:48 +12:00

132 lines
4.2 KiB
Python

# subunit: extensions to python unittest to get test results from subprocesses.
# Copyright (C) 2009 Robert Collins <robertc@robertcollins.net>
#
# Licensed under either the Apache License, Version 2.0 or the BSD 3-clause
# license at the users choice. A copy of both licenses are available in the
# project source as Apache-2.0 and BSD. You may not use this file except in
# compliance with one of these two licences.
#
# Unless required by applicable law or agreed to in writing, software
# distributed under these licenses is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# license you chose for the specific language governing permissions and
# limitations under that license.
from errno import EEXIST
import io
import json
import optparse
import os.path
import sys
from textwrap import dedent
from testtools import StreamToDict
from subunit.filters import run_tests_from_stream
def _allocate_path(root, sub):
"""Figoure a path for sub under root.
If sub tries to escape root, squash it with prejuidice.
If the path already exists, a numeric suffix is appended.
E.g. foo, foo-1, foo-2, etc.
:return: the full path to sub.
"""
# subpathss are allowed, but not parents.
candidate = os.path.realpath(os.path.join(root, sub))
realroot = os.path.realpath(root)
if not candidate.startswith(realroot):
sub = sub.replace('/', '_').replace('\\', '_')
return _allocate_path(root, sub)
attempt = 0
probe = candidate
while os.path.exists(probe):
attempt += 1
probe = '%s-%s' % (candidate, attempt)
return probe
def _open_path(root, subpath):
name = _allocate_path(root, subpath)
try:
os.makedirs(os.path.dirname(name))
except (OSError, IOError) as e:
if e.errno != EEXIST:
raise
return io.open(name, 'wb')
def _json_time(a_time):
if a_time is None:
return a_time
return str(a_time)
class DiskExporter:
"""Exports tests to disk."""
def __init__(self, directory):
self._directory = os.path.realpath(directory)
def export(self, test_dict):
id = test_dict['id']
tags = sorted(test_dict['tags'])
details = test_dict['details']
status = test_dict['status']
start, stop = test_dict['timestamps']
test_summary = {}
test_summary['id'] = id
test_summary['tags'] = tags
test_summary['status'] = status
test_summary['details'] = sorted(details.keys())
test_summary['start'] = _json_time(start)
test_summary['stop'] = _json_time(stop)
root = _allocate_path(self._directory, id)
with _open_path(root, 'test.json') as f:
maybe_str = json.dumps(
test_summary, sort_keys=True, ensure_ascii=False)
if not isinstance(maybe_str, bytes):
maybe_str = maybe_str.encode('utf-8')
f.write(maybe_str)
for name, detail in details.items():
with _open_path(root, name) as f:
for chunk in detail.iter_bytes():
f.write(chunk)
def to_disk(argv=None, stdin=None, stdout=None):
if stdout is None:
stdout = sys.stdout
if stdin is None:
stdin = sys.stdin
parser = optparse.OptionParser(
description="Export a subunit stream to files on disk.",
epilog=dedent("""\
Creates a directory per test id, a JSON file with test
metadata within that directory, and each attachment
is written to their name relative to that directory.
Global packages (no test id) are discarded.
Exits 0 if the export was completed, or non-zero otherwise.
"""))
parser.add_option(
"-d", "--directory", help="Root directory to export to.",
default=".")
options, args = parser.parse_args(argv)
if len(args) > 1:
raise Exception("Unexpected arguments.")
if len(args):
source = io.open(args[0], 'rb')
else:
source = stdin
exporter = DiskExporter(options.directory)
result = StreamToDict(exporter.export)
run_tests_from_stream(source, result, protocol_version=2)
return 0