1 files changed, 69 insertions, 0 deletions
diff --git a/test/extractor/image/test_iptc.py b/test/extractor/image/test_iptc.py
new file mode 100644
index 0000000..5fa763d
--- /dev/null
+++ b/test/extractor/image/test_iptc.py
@@ -0,0 +1,69 @@
+
+# standard imports
+import unittest
+
+# bsie imports
+from bsie.extractor import base
+from bsie.utils import bsfs, node as _node, ns
+
+# objects to test
+from bsie.extractor.image.iptc import Iptc
+
+
+## code ##
+
+class TestIptc(unittest.TestCase):
+
+    def test_eq(self):
+        # identical instances are equal
+        self.assertEqual(Iptc(), Iptc())
+        self.assertEqual(hash(Iptc()), hash(Iptc()))
+        # comparison respects type
+        class Foo(): pass
+        self.assertNotEqual(Iptc(), Foo())
+        self.assertNotEqual(hash(Iptc()), hash(Foo()))
+        self.assertNotEqual(Iptc(), 1234)
+        self.assertNotEqual(hash(Iptc()), hash(1234))
+        self.assertNotEqual(Iptc(), None)
+        self.assertNotEqual(hash(Iptc()), hash(None))
+
+    def test_schema(self):
+        self.assertSetEqual({pred.uri for pred in Iptc().schema.predicates()}, {
+            ns.bsfs.Predicate,
+            ns.bse.tag,
+            ns.bst.label,
+            })
+
+    def test_extract(self):
+        ext = Iptc()
+        node = _node.Node(ns.bsfs.File, '') # Blank node
+        content = {
+            'Iptc.Application2.Keywords': ['hello', 'world'],
+            'Iptc.Application2.RecordVersion': '4',
+            }
+        # target tags
+        t_hello = _node.Node(ns.bsn.Tag, label='hello')
+        t_world = _node.Node(ns.bsn.Tag, label='world')
+
+        # invalid principals are ignored
+        self.assertSetEqual(set(ext.extract(node, content, {ns.bse.filename})), set())
+        # extract finds all relevant information
+        self.assertSetEqual(set(ext.extract(node, content, {ext.schema.predicate(ns.bse.tag)})), {
+            (node, ext.schema.predicate(ns.bse.tag), t_hello),
+            (node, ext.schema.predicate(ns.bse.tag), t_world),
+            (t_hello, ext.schema.predicate(ns.bst.label), 'hello'),
+            (t_world, ext.schema.predicate(ns.bst.label), 'world'),
+            })
+
+        # empty content is acceptable
+        self.assertSetEqual(set(ext.extract(node, {}, set(ext.principals))), set())
+        # no principals is acceptable
+        self.assertSetEqual(set(ext.extract(node, content, set())), set())
+
+
+## main ##
+
+if __name__ == '__main__':
+    unittest.main()
+
+## EOF ##