Unit Testing A Function

Steve Jones walks through a practical example of unit testing T-SQL with tsqlt:

However I wanted to add some tests. Does this really work? What if I don’t have a backslash? I thought the best way to do this was with a few tSQLt tests, which I quickly built. The entire process was 5-10 minutes, which isn’t a lot longer than if I had been running random tests myself with a variety of strings.

The advantage of tests is that if I come up with a new case, or another potential bug, I copy the test over, change the string and I have a new test, plus all the regressions. I’m not depending on my memory to run the test cases.

I first put the code in a function, which makes it easier to test.

tsqlt is a great tool for database unit testing.

Related Posts

Gaps And Islands: Solving Stochastic Islands Problems

Itzik Ben-Gan shares with us a special case of the islands problem: In your database you keep track of services your company supports in a table called CompanyServices, and each service normally reports about once a minute that it’s online in a table called EventLog. The following code creates these tables and populates them with […]

Read More

An Update To ssisUnit

Bartosz Ratajczyk has added some functionality to ssisUnit: Second – you can get and set the properties of the project and its elements. Like – overwriting project connection managers (I designed it with this particular need on my mind). You can now set the connection string the different server (or database) – in the PropertyPath […]

Read More

Categories

February 2016
MTWTFSS
« Jan Mar »
1234567
891011121314
15161718192021
22232425262728
29