diff --git a/sru/tests/test_almasru.py b/sru/tests/test_almasru.py
index 63b7dd9e56cc5c4cc677b3147926a71620bbd5c0..9fd155e20915c3749f421d59a1f40b469cf41868 100644
--- a/sru/tests/test_almasru.py
+++ b/sru/tests/test_almasru.py
@@ -1,12 +1,26 @@
 import pytest
 import sru.almasru as almasru
 
-retriever = almasru.RecordRetriever('obv-at-oenb', '43ACC_ONB', 'marcxml')
+RETRIEVER = almasru.RecordRetriever('obv-at-oenb', '43ACC_ONB', 'marcxml')
 
 
 class TestRecordRetriever:
 
     def test_erroneous_xml(self):
         with pytest.raises(almasru.SruException):
-            retriever.by_mms_id('MMS-ID')
+            RETRIEVER.by_mms_id('MMS-ID')
 
+    def test_get_multiple(self):
+        query = "alma.local_control_field_009=AC13320616 OR alma.local_control_field_009=AC13320328"
+        RETRIEVER.get_multiple(query)
+        assert True
+
+    def test_get_unique(self):
+        query = "alma.local_control_field_009=AC13320616"
+        RETRIEVER.get_unique(query)
+        assert True
+
+    def test_not_unique(self):
+        query = "alma.local_control_field_009=AC13320616 OR alma.local_control_field_009=AC13320328"
+        with pytest.raises(almasru.NotUnique):
+            RETRIEVER.get_unique(query)