Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/prov/tests/utility.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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1 from __future__ import (absolute_import, division, print_function, |
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2 unicode_literals) |
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3 |
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4 import io |
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5 import logging |
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6 import unittest |
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7 |
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8 from prov.model import ProvDocument |
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9 |
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10 |
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11 logger = logging.getLogger(__name__) |
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12 |
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13 |
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14 class DocumentBaseTestCase(unittest.TestCase): |
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15 def do_tests(self, prov_doc, msg=None): |
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16 pass |
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17 |
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18 |
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19 class RoundTripTestCase(DocumentBaseTestCase): |
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20 """A serializer test should subclass this class and set the class property |
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21 FORMAT to the correct value (e.g. 'json', 'xml', 'rdf'). |
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22 """ |
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23 FORMAT = None # a subclass should change this |
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24 |
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25 def do_tests(self, prov_doc, msg=None): |
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26 self.assertRoundTripEquivalence(prov_doc, msg) |
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27 |
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28 def assertRoundTripEquivalence(self, prov_doc, msg=None): |
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29 if self.FORMAT is None: |
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30 # This is a dummy test, just return |
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31 return |
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32 |
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33 with io.BytesIO() as stream: |
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34 prov_doc.serialize(destination=stream, format=self.FORMAT, indent=4) |
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35 stream.seek(0, 0) |
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36 |
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37 prov_doc_new = ProvDocument.deserialize(source=stream, |
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38 format=self.FORMAT) |
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39 stream.seek(0, 0) |
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40 # Assume UTF-8 encoding which is forced by the particular |
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41 # PROV XML implementation and should also work for the PROV |
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42 # JSON implementation. |
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43 msg_extra = u"'%s' serialization content:\n%s" % ( |
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44 self.FORMAT, stream.read().decode("utf-8")) |
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45 msg = u'\n'.join((msg, msg_extra)) if msg else msg_extra |
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46 self.assertEqual(prov_doc, prov_doc_new, msg) |