created kc-tools unit tests

Author: usebeforefree

test/.gitkeep

@@ -0,0 +1,13 @@
+import dkg.utils.knowledge_collection_tools as kc_tools
+
+
+class TestGroupNQuadsBySubject:
+    def test_resource_object_quad(self):
+        quads = [
+            "<http://example.org/book1> <http://schema.org/author> <http://example.org/author1> .",
+            "<http://example.org/book1> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Book> .",
+        ]
+        grouped = kc_tools.group_nquads_by_subject(quads)
+        assert len(grouped) == 1
+        assert quads[0] in grouped[0]
+        assert quads[1] in grouped[0]