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comparison service/mqtt_to_rdf/lhs_evaluation_test.py @ 1605:449746d1598f

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WIP move evaluation to new file
author drewp@bigasterisk.com
date Mon, 06 Sep 2021 01:13:55 -0700
parents
children 4fd9fdfcf16a
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1604:e78464befd24 1605:449746d1598f
1 import unittest
2
3 from rdflib import RDF, ConjunctiveGraph, Literal, Namespace
4 from rdflib.parser import StringInputSource
5
6 from lhs_evaluation import _parseList
7
8 EX = Namespace('http://example.com/')
9
10
11 def N3(txt: str):
12 g = ConjunctiveGraph()
13 prefix = """
14 @prefix : <http://example.com/> .
15 """
16 g.parse(StringInputSource((prefix + txt).encode('utf8')), format='n3')
17 return g
18
19
20 class TestParseList(unittest.TestCase):
21
22 def test0Elements(self):
23 g = N3(":a :b () .")
24 bn = g.value(EX['a'], EX['b'])
25 elems, used = _parseList(g, bn)
26 self.assertEqual(elems, [])
27 self.assertFalse(used)
28
29 def test1Element(self):
30 g = N3(":a :b (0) .")
31 bn = g.value(EX['a'], EX['b'])
32 elems, used = _parseList(g, bn)
33 self.assertEqual(elems, [Literal(0)])
34 used = sorted(used)
35 self.assertEqual(used, [
36 (bn, RDF.first, Literal(0)),
37 (bn, RDF.rest, RDF.nil),
38 ])