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annotate service/mqtt_to_rdf/lhs_evaluation_test.py @ 1610:6fc48ef4c696

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mysteriously lost an important line
author drewp@bigasterisk.com
date Mon, 06 Sep 2021 18:07:28 -0700
parents 449746d1598f
children 4fd9fdfcf16a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 import unittest
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2
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3 from rdflib import RDF, ConjunctiveGraph, Literal, Namespace
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4 from rdflib.parser import StringInputSource
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5
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6 from lhs_evaluation import _parseList
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7
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8 EX = Namespace('http://example.com/')
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9
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10
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11 def N3(txt: str):
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12 g = ConjunctiveGraph()
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13 prefix = """
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14 @prefix : <http://example.com/> .
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15 """
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16 g.parse(StringInputSource((prefix + txt).encode('utf8')), format='n3')
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17 return g
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19
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20 class TestParseList(unittest.TestCase):
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21
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22 def test0Elements(self):
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23 g = N3(":a :b () .")
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24 bn = g.value(EX['a'], EX['b'])
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25 elems, used = _parseList(g, bn)
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26 self.assertEqual(elems, [])
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27 self.assertFalse(used)
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28
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29 def test1Element(self):
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30 g = N3(":a :b (0) .")
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31 bn = g.value(EX['a'], EX['b'])
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32 elems, used = _parseList(g, bn)
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33 self.assertEqual(elems, [Literal(0)])
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34 used = sorted(used)
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35 self.assertEqual(used, [
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36 (bn, RDF.first, Literal(0)),
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37 (bn, RDF.rest, RDF.nil),
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38 ])