diff --git a/pybis/src/python/tests/test_dataset.py b/pybis/src/python/tests/test_dataset.py
index 204c1a8434a5ac15e979c34684bf88145fef530b..d16f711d57c32bcc7b6b785862ba1487ab78ab27 100644
--- a/pybis/src/python/tests/test_dataset.py
+++ b/pybis/src/python/tests/test_dataset.py
@@ -62,6 +62,11 @@ def test_create_delete_dataset(space):
     assert dataset_by_permId.p.name == 'some good name'
     assert dataset_by_permId.p.notes == 'my notes'
 
+    assert dataset_by_permId.registrator is not None
+    assert dataset_by_permId.registrationDate is not None
+    # check date format: 2019-03-22 11:36:40 
+    assert re.search('^\d{4}\-\d{2}\-\d{2} \d{2}\:\d{2}\:\d{2}$', dataset_by_permId.registrationDate) is not None
+
     # delete datasets
     dataset.delete('dataset creation test on '+timestamp)
 
diff --git a/pybis/src/python/tests/test_sample.py b/pybis/src/python/tests/test_sample.py
index 6df2d171692a148ff30e71feea6b53aa13b6ed2e..d0de8795272985d88625f8067188edc61a832290 100644
--- a/pybis/src/python/tests/test_sample.py
+++ b/pybis/src/python/tests/test_sample.py
@@ -36,8 +36,12 @@ def test_create_delete_sample(space):
     sample_by_permId = space.get_sample(sample.permId)
     assert sample_by_permId is not None
 
+    assert sample_by_permId.registrator is not None
+    assert sample_by_permId.registrationDate is not None
+    # check date format: 2019-03-22 11:36:40 
+    assert re.search('^\d{4}\-\d{2}\-\d{2} \d{2}\:\d{2}\:\d{2}$', sample_by_permId.registrationDate) is not None
 
-    # get it by identifier
+    # get sample by identifier
     sample_by_identifier = o.get_sample(sample.identifier)
     assert sample_by_identifier is not None