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#
# subunit: extensions to Python unittest to get test results from subprocesses.
# Copyright (C) 2005 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.
#
"""Handlers for outcome details."""
from io import BytesIO, StringIO
from testtools import content, content_type
from testtools.compat import _b
from subunit import chunked
end_marker = _b("]\n")
quoted_marker = _b(" ]")
empty = _b('')
class DetailsParser(object):
"""Base class/API reference for details parsing."""
class SimpleDetailsParser(DetailsParser):
"""Parser for single-part [] delimited details."""
def __init__(self, state):
self._message = _b("")
self._state = state
def lineReceived(self, line):
if line == end_marker:
self._state.endDetails()
return
if line[0:2] == quoted_marker:
# quoted ] start
self._message += line[1:]
else:
self._message += line
def get_details(self, style=None):
result = {}
if not style:
# We know that subunit/testtools serialise [] formatted
# tracebacks as utf8, but perhaps we need a ReplacingContent
# or something like that.
result['traceback'] = content.Content(
content_type.ContentType("text", "x-traceback",
{"charset": "utf8"}),
lambda:[self._message])
else:
if style == 'skip':
name = 'reason'
else:
name = 'message'
result[name] = content.Content(
content_type.ContentType("text", "plain"),
lambda:[self._message])
return result
def get_message(self):
return self._message
class MultipartDetailsParser(DetailsParser):
"""Parser for multi-part [] surrounded MIME typed chunked details."""
def __init__(self, state):
self._state = state
self._details = {}
self._parse_state = self._look_for_content
def _look_for_content(self, line):
if line == end_marker:
self._state.endDetails()
return
# TODO error handling
field, value = line[:-1].decode('utf8').split(' ', 1)
try:
main, sub = value.split('/')
except ValueError:
raise ValueError("Invalid MIME type %r" % value)
self._content_type = content_type.ContentType(main, sub)
self._parse_state = self._get_name
def _get_name(self, line):
self._name = line[:-1].decode('utf8')
self._body = BytesIO()
self._chunk_parser = chunked.Decoder(self._body)
self._parse_state = self._feed_chunks
def _feed_chunks(self, line):
residue = self._chunk_parser.write(line)
if residue is not None:
# Line based use always ends on no residue.
assert residue == empty, 'residue: %r' % (residue,)
body = self._body
self._details[self._name] = content.Content(
self._content_type, lambda:[body.getvalue()])
self._chunk_parser.close()
self._parse_state = self._look_for_content
def get_details(self, for_skip=False):
return self._details
def get_message(self):
return None
def lineReceived(self, line):
self._parse_state(line)
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