diff --git a/test/runtests.jl b/test/runtests.jl
index 5fa1db168735cfad9532752b8d9d3364074e447b..9036bec2439f07eaeb86f36e05abc2e3110429b2 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -64,4 +64,24 @@ using CaosDB
             ),
         ) CaosDB.Exceptions.evaluate_return_code(Cint(-1))
     end
+
+    @testset "TestTransaction" begin
+        # transactions can be generated from the default connection,
+        # from a connection name, or from a connection object
+        @test CaosDB.Transaction.create_transaction() != nothing
+        @test CaosDB.Transaction.create_transaction("default") != nothing
+        conn = CaosDB.Connection.get_connection()
+        @test CaosDB.Transaction.create_transaction != nothing
+
+        # Retrieval works by a single id, by a list of ids, or by querying
+        trans1 = CaosDB.Transaction.create_transaction()
+        @test CaosDB.Transaction.add_retrieve_by_id(trans1, "some_id") == nothing
+        trans2 = CaosDB.Transaction.create_transaction()
+        @test CaosDB.Transaction.add_retrieve_by_id(["id1", "id2", "id3"]) == nothing
+        trans3 = CaosDB.Transaction.create_transaction()
+        @test CaosDB.Transaction.add_query("FIND ENTITY WITH id=123") == nothing
+
+    end
+
+    @testset "TestEntity" begin end
 end