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#
# 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.
#
"""Content - a MIME-like Content object."""
from unittest import TestResult
import subunit
from subunit.content_type import ContentType
class Content(object):
"""A MIME-like Content object.
Content objects can be serialised to bytes using the iter_bytes method.
If the Content-Type is recognised by other code, they are welcome to
look for richer contents that mere byte serialisation - for example in
memory object graphs etc. However, such code MUST be prepared to receive
a generic Content object that has been reconstructed from a byte stream.
:ivar content_type: The content type of this Content.
"""
def __init__(self, content_type, get_bytes):
"""Create a ContentType."""
if None in (content_type, get_bytes):
raise ValueError("None not permitted in %r, %r" % (
content_type, get_bytes))
self.content_type = content_type
self._get_bytes = get_bytes
def __eq__(self, other):
return (self.content_type == other.content_type and
''.join(self.iter_bytes()) == ''.join(other.iter_bytes()))
def iter_bytes(self):
"""Iterate over bytestrings of the serialised content."""
return self._get_bytes()
def __repr__(self):
return "<Content type=%r, value=%r>" % (
self.content_type, ''.join(self.iter_bytes()))
class TracebackContent(Content):
"""Content object for tracebacks.
This adapts an exc_info tuple to the Content interface.
text/x-traceback;language=python is used for the mime type, in order to
provide room for other languages to format their tracebacks differently.
"""
def __init__(self, err):
"""Create a TracebackContent for err."""
if err is None:
raise ValueError("err may not be None")
content_type = ContentType('text', 'x-traceback',
{"language": "python"})
self._result = TestResult()
super(TracebackContent, self).__init__(content_type,
lambda:[self._result._exc_info_to_string(err,
subunit.RemotedTestCase(''))])
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