Unit testing - how do I test a function that returns random output?

Posted by Extrakun on Stack Overflow See other posts from Stack Overflow or by Extrakun
Published on 2010-04-11T17:53:07Z Indexed on 2010/04/11 18:03 UTC
Read the original article Hit count: 267

Filed under:

unit-testing

I have a function which takes in two parameters, and returns one or the other 50% of the time.

The unit test for this should determine that both parameters could be returned. Luckily, I don't need to prove that the probability for each is 50% but I do need to show that both parameters are possible to be returned.

How do I write a test case for this function?

Related posts about unit-testing

Unit testing best practices for a unit testing newbie

as seen on Programmers - Search for 'Programmers'
In recent years, I have only written small components for people in larger projects or small tools. I have never written a unit test and it always seems like learning how to write them and actually making one takes a lot longer than simply firing up the program and testing for real. I am just about… >>> More
About unit testing a function in the zend framework and unit testing in general

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello people, I am diving into the world of unit testing. And i am sort of lost. I learned today that unit testing is testing if a function works. I wanted to test the following function: public function getEventById($id) { return $this->getResource('Event')->getEventById($id); } So… >>> More
Unit testing a database connection and general questions on database-dependent code and unit testing

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, If I have a method which establishes a database connection, how could this method be tested? Returning a bool in the event of a successful connection is one way, but is that the best way? From a testability method, is it best to have the connection method as one method and the method to get… >>> More
What is the objective of unit testing?

as seen on Programmers - Search for 'Programmers'
I've been working with C# for the last 2 years, and I've never done any unit testing. I just need to know what the objective of unit testing is. What kind of results do we expect from unit testing? Is code quality checked by unit testing? In my view, unit testing is the job of testers; if that is… >>> More
Unit testing newbie team needs to unit test

as seen on Programmers - Search for 'Programmers'
I'm working with a new team that has historically not done ANY unit testing. My goal is for the team to eventually employ TDD (Test Driven Development) as their natural process. But since TDD is such a radical mind shift for a non-unit testing team I thought I would just start off with writing unit… >>> More

Developer IT

Unit testing - how do I test a function that returns random output? - Developer IT

Unit testing - how do I test a function that returns random output?

unit-testing

Related posts about unit-testing

Unit testing best practices for a unit testing newbie

About unit testing a function in the zend framework and unit testing in general

Unit testing a database connection and general questions on database-dependent code and unit testing

What is the objective of unit testing?

Unit testing newbie team needs to unit test

Categories cloud