Mercurial > repos > shellac > guppy_basecaller

comparison env/lib/python3.7/site-packages/prov/tests/utility.py @ 0:26e78fe6e8c4 draft

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"planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
author shellac
date Sat, 02 May 2020 07:14:21 -0400
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-1:000000000000 0:26e78fe6e8c4
1 from __future__ import (absolute_import, division, print_function,
2 unicode_literals)
3
4 import io
5 import logging
6 import unittest
7
8 from prov.model import ProvDocument
9
10
11 logger = logging.getLogger(__name__)
12
13
14 class DocumentBaseTestCase(unittest.TestCase):
15 def do_tests(self, prov_doc, msg=None):
16 pass
17
18
19 class RoundTripTestCase(DocumentBaseTestCase):
20 """A serializer test should subclass this class and set the class property
21 FORMAT to the correct value (e.g. 'json', 'xml', 'rdf').
22 """
23 FORMAT = None # a subclass should change this
24
25 def do_tests(self, prov_doc, msg=None):
26 self.assertRoundTripEquivalence(prov_doc, msg)
27
28 def assertRoundTripEquivalence(self, prov_doc, msg=None):
29 if self.FORMAT is None:
30 # This is a dummy test, just return
31 return
32
33 with io.BytesIO() as stream:
34 prov_doc.serialize(destination=stream, format=self.FORMAT, indent=4)
35 stream.seek(0, 0)
36
37 prov_doc_new = ProvDocument.deserialize(source=stream,
38 format=self.FORMAT)
39 stream.seek(0, 0)
40 # Assume UTF-8 encoding which is forced by the particular
41 # PROV XML implementation and should also work for the PROV
42 # JSON implementation.
43 msg_extra = u"'%s' serialization content:\n%s" % (
44 self.FORMAT, stream.read().decode("utf-8"))
45 msg = u'\n'.join((msg, msg_extra)) if msg else msg_extra
46 self.assertEqual(prov_doc, prov_doc_new, msg)