FIX: Use correct transaction variable

test/runtests.jl

@@ -99,10 +99,10 @@ end
 
         # COUNT queries have to be conducted manually
         count_transaction = create_transaction()
-        add_query(transaction, "COUNT ENTITY WITH id=-1")
-        execute(transaction)
+        add_query(count_transaction, "COUNT ENTITY WITH id=-1")
+        execute(count_transaction)
         # Still an empty result set
-        @test get_count_result(transaction) == 0
+        @test get_count_result(count_transaction) == 0
     end
 
     @testset "Test entity retrieval" begin