light9 Changeset - f7ae0faa0a44

Changeset - f7ae0faa0a44

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drewp@bigasterisk.com - 12 years ago 2013-01-15 21:01:03
drewp@bigasterisk.com

makefile and nosetests path fix. new contextsForStatement
Ignore-this: 424b0fa004ff5366b8035af42d9d9d0d

2 files changed with 25 insertions and 1 deletions:

light9/rdfdb/rdflibpatch.py

makefile

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light9/rdfdb/rdflibpatch.py

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 """
 this is a proposal for a ConjunctiveGraph method in rdflib
 """
 import sys
 if sys.path[0] == '/usr/lib/python2.7/dist-packages':
     # nosetests puts this in
     sys.path = sys.path[1:]
 import unittest
 from rdflib import ConjunctiveGraph, URIRef as U
 def patchQuads(graph, deleteQuads, addQuads, perfect=False):
     """
     Delete the sequence of given quads. Then add the given quads just
     like addN would. If perfect is True, we'll error before the
     deletes or before the adds (not a real transaction) if any of the
     deletes isn't in the graph or if any of the adds was already in
     the graph.
     """
     toDelete = []
@@ @@ -64,25 +69,42 @@ def serializeQuad(g): @@
         out += u"%s %s %s %s .\n" % (s.n3(),
                                 p.n3(),
                                 _xmlcharref_encode(o.n3()),
                                 c.n3())
     return out
 def inContext(graph, newContext):
     """
     make a ConjunctiveGraph where all the triples in the given graph
     are in newContext
     """
     return graphFromQuads([(s,p,o,newContext) for s,p,o in graph])
 def contextsForStatement(graph, triple):
     return [q[3] for q in graph.quads(triple)]
 A = U("http://a"); B = U("http://b")
 class TestContextsForStatement(unittest.TestCase):
     def testNotFound(self):
         g = graphFromQuads([(A,A,A,A)])
         self.assertEqual(contextsForStatement(g, (B,B,B)), [])
     def testOneContext(self):
         g = graphFromQuads([(A,A,A,A), (A,A,B,B)])
         self.assertEqual(contextsForStatement(g, (A,A,A)), [A])
     def testTwoContexts(self):
         g = graphFromQuads([(A,A,A,A), (A,A,A,B)])
         self.assertEqual(sorted(contextsForStatement(g, (A,A,A))), sorted([A,B]))
 class TestGraphFromQuads(unittest.TestCase):
     nqOut = '<http://example.com/> <http://example.com/> <http://example.com/> <http://example.com/> .\n'
     def testSerializes(self):
         n = U("http://example.com/")
         g = graphFromQuads([(n,n,n,n)])
         out = serializeQuad(g)
         self.assertEqual(out.strip(), self.nqOut.strip())
     def testNquadParserSerializes(self):
         g = graphFromNQuad(self.nqOut)
         self.assertEqual(len(g), 1)

makefile

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		new file 100644
		tests:
		bin/python `which nosetests` --no-path-adjustment light9.rdfdb.rdflibpatch

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