diff --git a/unittests/test_identifiable.py b/unittests/test_identifiable.py
new file mode 100644
index 0000000000000000000000000000000000000000..ab33edea6cd25fdfbb6968c5a16a2d4cf0d9efca
--- /dev/null
+++ b/unittests/test_identifiable.py
@@ -0,0 +1,59 @@
+#!/usr/bin/env python3
+# encoding: utf-8
+#
+# This file is a part of the CaosDB Project.
+#
+# Copyright (C) 2021 Indiscale GmbH <info@indiscale.com>
+# Copyright (C) 2021 Henrik tom Wörden <h.tomwoerden@indiscale.com>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+#
+
+"""
+test identifiable module
+"""
+
+import caosdb as db
+from caoscrawler.identifiable import Identifiable
+from caoscrawler.identified_cache import IdentifiedCache
+
+
+def test_create_hashable_string():
+    assert Identifiable._create_hashable_string(
+        Identifiable(name="A", record_type="B")) == "P<B>N<A>"
+    assert Identifiable._create_hashable_string(
+        Identifiable(name="A", record_type="B", properties={'a': 5})) == "P<B>N<A>a:5"
+    a = Identifiable._create_hashable_string(
+        Identifiable(name="A", record_type="B", properties={'a': 4, 'b': 5}))
+    b = Identifiable._create_hashable_string(
+        Identifiable(name="A", record_type="B", properties={'b': 5, 'a': 4}))
+    assert a == b
+    assert (
+        Identifiable._create_hashable_string(
+            Identifiable(name="A", record_type="B", properties={'a': db.Record(id=12)})
+        ) == "P<B>N<A>a:12")
+    a = Identifiable._create_hashable_string(
+        Identifiable(name="A", record_type="B", properties={'a': [db.Record(id=12)]}))
+    assert (a == "P<B>N<A>a:[12]")
+    assert (Identifiable._create_hashable_string(
+        Identifiable(name="A", record_type="B", properties={'a': [12]})) == "P<B>N<A>a:[12]")
+    assert (
+        Identifiable._create_hashable_string(
+            Identifiable(name="A", record_type="B", properties={'a': [db.Record(id=12), 11]})
+        ) == "P<B>N<A>a:[12, 11]")
+    assert (
+        Identifiable._create_hashable_string(
+            Identifiable(record_type="B", properties={'a': [db.Record()]})
+        ) != Identifiable._create_hashable_string(
+            Identifiable(record_type="B", properties={'a': [db.Record()]})))
diff --git a/unittests/test_identified_cache.py b/unittests/test_identified_cache.py
index dfddbbd94fa07cef2517427732741bc11c6972fd..f6edbdfa6023de635483b8cde23a6372bec87b9c 100644
--- a/unittests/test_identified_cache.py
+++ b/unittests/test_identified_cache.py
@@ -33,33 +33,6 @@ from caoscrawler.identified_cache import IdentifiedCache
 
 
 def test_create_hash():
-    assert Identifiable._create_hashable_string(
-        Identifiable(name="A", record_type="B")) == "P<B>N<A>"
-    assert Identifiable._create_hashable_string(
-        Identifiable(name="A", record_type="B", properties={'a': 5})) == "P<B>N<A>a:5"
-    a = Identifiable._create_hashable_string(
-        Identifiable(name="A", record_type="B", properties={'a': 4, 'b': 5}))
-    b = Identifiable._create_hashable_string(
-        Identifiable(name="A", record_type="B", properties={'b': 5, 'a': 4}))
-    assert a == b
-    assert (
-        Identifiable._create_hashable_string(
-            Identifiable(name="A", record_type="B", properties={'a': db.Record(id=12)})
-        ) == "P<B>N<A>a:12")
-    a = Identifiable._create_hashable_string(
-        Identifiable(name="A", record_type="B", properties={'a': [db.Record(id=12)]}))
-    assert (a == "P<B>N<A>a:[12]")
-    assert (Identifiable._create_hashable_string(
-        Identifiable(name="A", record_type="B", properties={'a': [12]})) == "P<B>N<A>a:[12]")
-    assert (
-        Identifiable._create_hashable_string(
-            Identifiable(name="A", record_type="B", properties={'a': [db.Record(id=12), 11]})
-        ) == "P<B>N<A>a:[12, 11]")
-    assert (
-        Identifiable._create_hashable_string(
-            Identifiable(record_type="B", properties={'a': [db.Record()]})
-        ) != Identifiable._create_hashable_string(
-            Identifiable(record_type="B", properties={'a': [db.Record()]})))
 
 
 def test_IdentifiedCache():