1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
import unittest
import rdflib
import re
from nose import SkipTest
from six import b
TRIPLE = (rdflib.URIRef("http://example.com/s"),
rdflib.RDFS.label,
rdflib.Literal("example 1"))
class TestTrig(unittest.TestCase):
def testEmpty(self):
g=rdflib.Graph()
s=g.serialize(format='trig')
self.assertTrue(s is not None)
def testRepeatTriples(self):
g=rdflib.ConjunctiveGraph()
g.get_context('urn:a').add(( rdflib.URIRef('urn:1'),
rdflib.URIRef('urn:2'),
rdflib.URIRef('urn:3') ))
g.get_context('urn:b').add(( rdflib.URIRef('urn:1'),
rdflib.URIRef('urn:2'),
rdflib.URIRef('urn:3') ))
self.assertEqual(len(g.get_context('urn:a')),1)
self.assertEqual(len(g.get_context('urn:b')),1)
s=g.serialize(format='trig')
self.assertTrue(b('{}') not in s) # no empty graphs!
def testSameSubject(self):
g=rdflib.ConjunctiveGraph()
g.get_context('urn:a').add(( rdflib.URIRef('urn:1'),
rdflib.URIRef('urn:p1'),
rdflib.URIRef('urn:o1') ))
g.get_context('urn:b').add(( rdflib.URIRef('urn:1'),
rdflib.URIRef('urn:p2'),
rdflib.URIRef('urn:o2') ))
self.assertEqual(len(g.get_context('urn:a')),1)
self.assertEqual(len(g.get_context('urn:b')),1)
s=g.serialize(format='trig')
self.assertEqual(len(re.findall(b("p1"), s)), 1)
self.assertEqual(len(re.findall(b("p2"), s)), 1)
self.assertTrue(b('{}') not in s) # no empty graphs!
def testRememberNamespace(self):
g = rdflib.ConjunctiveGraph()
g.add(TRIPLE + (rdflib.URIRef("http://example.com/graph1"),))
# In 4.2.0 the first serialization would fail to include the
# prefix for the graph but later serialize() calls would work.
first_out = g.serialize(format='trig')
second_out = g.serialize(format='trig')
self.assertTrue(b'@prefix ns1: <http://example.com/> .' in second_out)
self.assertTrue(b'@prefix ns1: <http://example.com/> .' in first_out)
def testGraphQnameSyntax(self):
g = rdflib.ConjunctiveGraph()
g.add(TRIPLE + (rdflib.URIRef("http://example.com/graph1"),))
out = g.serialize(format='trig')
self.assertTrue(b'ns1:graph1 {' in out)
def testGraphUriSyntax(self):
g = rdflib.ConjunctiveGraph()
# getQName will not abbreviate this, so it should serialize as
# a '<...>' term.
g.add(TRIPLE + (rdflib.URIRef("http://example.com/foo."),))
out = g.serialize(format='trig')
self.assertTrue(b'<http://example.com/foo.> {' in out)
def testBlankGraphIdentifier(self):
g = rdflib.ConjunctiveGraph()
g.add(TRIPLE + (rdflib.BNode(),))
out = g.serialize(format='trig')
graph_label_line = out.splitlines()[-4]
self.assertTrue(re.match(br'^_:[a-zA-Z0-9]+ \{', graph_label_line))
def testGraphParsing(self):
# should parse into single default graph context
data = """
<http://example.com/thing#thing_a> <http://example.com/knows> <http://example.com/thing#thing_b> .
"""
g = rdflib.ConjunctiveGraph()
g.parse(data=data, format='trig')
self.assertEqual(len(list(g.contexts())), 1)
# should parse into single default graph context
data = """
<http://example.com/thing#thing_a> <http://example.com/knows> <http://example.com/thing#thing_b> .
{ <http://example.com/thing#thing_c> <http://example.com/knows> <http://example.com/thing#thing_d> . }
"""
g = rdflib.ConjunctiveGraph()
g.parse(data=data, format='trig')
self.assertEqual(len(list(g.contexts())), 1)
# should parse into 2 contexts, one default, one named
data = """
<http://example.com/thing#thing_a> <http://example.com/knows> <http://example.com/thing#thing_b> .
{ <http://example.com/thing#thing_c> <http://example.com/knows> <http://example.com/thing#thing_d> . }
<http://example.com/graph#graph_a> {
<http://example.com/thing/thing_e> <http://example.com/knows> <http://example.com/thing#thing_f> .
}
"""
g = rdflib.ConjunctiveGraph()
g.parse(data=data, format='trig')
self.assertEqual(len(list(g.contexts())), 2)
def testRoundTrips(self):
raise SkipTest('skipped until 5.0')
data = """
<http://example.com/thing#thing_a> <http://example.com/knows> <http://example.com/thing#thing_b> .
{ <http://example.com/thing#thing_c> <http://example.com/knows> <http://example.com/thing#thing_d> . }
<http://example.com/graph#graph_a> {
<http://example.com/thing/thing_e> <http://example.com/knows> <http://example.com/thing#thing_f> .
}
"""
g = rdflib.ConjunctiveGraph()
for i in range(5):
g.parse(data=data, format='trig')
data = g.serialize(format='trig')
# output should only contain 1 mention of each resource/graph name
self.assertEqual(data.count('thing_a'), 1)
self.assertEqual(data.count('thing_b'), 1)
self.assertEqual(data.count('thing_c'), 1)
self.assertEqual(data.count('thing_d'), 1)
self.assertEqual(data.count('thing_e'), 1)
self.assertEqual(data.count('thing_f'), 1)
self.assertEqual(data.count('graph_a'), 1)
def testDefaultGraphSerializesWithoutName(self):
data = """
<http://example.com/thing#thing_a> <http://example.com/knows> <http://example.com/thing#thing_b> .
{ <http://example.com/thing#thing_c> <http://example.com/knows> <http://example.com/thing#thing_d> . }
"""
g = rdflib.ConjunctiveGraph()
g.parse(data=data, format='trig')
data = g.serialize(format='trig')
self.assertTrue(b('None') not in data)
def testPrefixes(self):
data = """
@prefix ns1: <http://ex.org/schema#> .
<http://ex.org/docs/document1> = {
ns1:Person_A a ns1:Person ;
ns1:TextSpan "Simon" .
}
<http://ex.org/docs/document2> = {
ns1:Person_C a ns1:Person ;
ns1:TextSpan "Agnes" .
}
"""
cg = rdflib.ConjunctiveGraph()
cg.parse(data=data, format='trig')
data = cg.serialize(format='trig')
self.assert_(b('ns2: <http://ex.org/docs/') in data, data)
self.assert_(b('<ns2:document1>') not in data, data)
self.assert_(b('ns2:document1') in data, data)
|
