TST: fix tests in test_query

tests/test_query.py

@@ -165,13 +165,15 @@ def test_query2():
 def test_query3():
     body = get_connection().retrieve(
         entity_uri_segments=["Entity"], query_dict={
-            "query": None}, reconnect=True).read()
+            "query": "bla"}, reconnect=True).read()
+    print(body)
     xml = etree.fromstring(body)
     assert xml.xpath("/Response/TransactionBenchmark")
     assert xml.xpath("/Response/Query")
     assert xml.xpath("/Response/UserInfo")
     assert xml.xpath("/Response/noscript")
-    assert 4 == len(xml)
+    assert xml.xpath("/Response/Error")
+    assert 5 == len(xml)
 
 
 @mark.slow