Unit Testing ETL Processes

Ed Elliott has a post showing how to perform unit testing on ETL processes:

In tSQLt, we can call tSQLt.FakeTable and then do an insert, if we don’t use tSQLt what do we do? Well, we need to setup the data we want, this could be by using a tool or by writing a load of insert statements. I have seen this done in various ways such as:

  1. Writing manual insert scripts
  2. Using a tool to setup the data
  3. Making use of API’s in the application to setup the data we need
  4. Some wierd and wonderful things that we shouldn’t recommend

Ultimately, for each test that you do you need to know what data you need for it. There isn’t really any way around this, and the sooner you get yourself in the position where you can setup the data you need for a test, the better.

Read the whole thing.

Related Posts

Running dbachecks In Parallel

Caludio Silva shows how you can run multiple instances of dbachecks concurrently: Imagine that I want to check for databases in Full Recovery Model on the production environment and I want to start (in parallel) a new check for the development environment where I want to check for Simple Recovery Model if this setting is […]

Read More

Verifying SSIS Database Connections With ssisUnit

Bartosz Ratajczyk shows how to test project-level connections in SQL Server Integration Services with ssisUnit: Previously we successfully prepared tests for variables and parameters using VariableCommandand and ParameterCommand. Now it’s time to communicate with the database, and for that, I will use connection manager defined on the project level. I know from the ssisUnit tutorials it works perfect with […]

Read More

Leave a Reply

Your email address will not be published. Required fields are marked *

Categories

May 2018
MTWTFSS
« Apr  
 123456
78910111213
14151617181920
21222324252627
28293031