Merge branch 'mb/feature' into develop

1 files changed, 70 insertions, 0 deletions

diff --git a/test/extractor/test_base.py b/test/extractor/test_base.py
new file mode 100644
index 0000000..acfaf58
--- /dev/null
+++ b/test/extractor/test_base.py
@@ -0,0 +1,70 @@
+"""
+
+Part of the bsie test suite.
+A copy of the license is provided with the project.
+Author: Matthias Baumgartner, 2022
+"""
+# standard imports
+import unittest
+
+# bsie imports
+from bsie.utils import bsfs, ns
+
+# objects to test
+from bsie.extractor import base
+
+
+## code ##
+
+class StubExtractor(base.Extractor):
+    def __init__(self):
+        super().__init__(bsfs.schema.from_string(base.SCHEMA_PREAMBLE + '''
+            bse:author rdfs:subClassOf bsfs:Predicate ;
+                rdfs:domain bsfs:Entity ;
+                rdfs:range xsd:string ;
+                bsfs:unique "false"^^xsd:boolean .
+            bse:comment rdfs:subClassOf bsfs:Predicate ;
+                rdfs:domain bsfs:Entity ;
+                rdfs:range xsd:string ;
+                bsfs:unique "false"^^xsd:boolean .
+        '''))
+
+    def extract(self, subject, content, predicates):
+        raise NotImplementedError()
+
+class StubSub(StubExtractor):
+    pass
+
+class TestExtractor(unittest.TestCase):
+    def test_essentials(self):
+        ext = StubExtractor()
+        self.assertEqual(str(ext), 'StubExtractor')
+        self.assertEqual(repr(ext), 'StubExtractor()')
+        self.assertEqual(ext, StubExtractor())
+        self.assertEqual(hash(ext), hash(StubExtractor()))
+
+        sub = StubSub()
+        self.assertEqual(str(sub), 'StubSub')
+        self.assertEqual(repr(sub), 'StubSub()')
+        self.assertEqual(sub, StubSub())
+        self.assertEqual(hash(sub), hash(StubSub()))
+        self.assertNotEqual(ext, sub)
+        self.assertNotEqual(hash(ext), hash(sub))
+
+    def test_principals(self):
+        schema = bsfs.schema.Schema()
+        entity = schema.node(ns.bsfs.Node).child(ns.bsfs.Entity)
+        string = schema.literal(ns.bsfs.Literal).child(bsfs.URI('http://www.w3.org/2001/XMLSchema#string'))
+        p_author = schema.predicate(ns.bsfs.Predicate).child(ns.bse.author, domain=entity, range=string)
+        p_comment = schema.predicate(ns.bsfs.Predicate).child(ns.bse.comment, domain=entity, range=string)
+        ext = StubExtractor()
+        self.assertSetEqual(set(ext.principals),
+            {p_author, p_comment} | set(schema.predicates()) - {schema.predicate(ns.bsfs.Predicate)})
+
+
+## main ##
+
+if __name__ == '__main__':
+    unittest.main()
+
+## EOF ##