Ruby Test Unit Tutorial

As in other languages ruby provides a framework in its standard library for setting up organizing and running tests called test unit.

Ruby test unit tutorial.

Test unit 1 2 3 is the same version as bundled in ruby 1 8. Minitest is a complete testing suite for ruby supporting test driven development tdd behavior driven development bdd mocking and benchmarking. I had quickly put together three guides last sunday on testunit minitest and rspec. Unit testing is a great way to catch errors early in the development process if you dedicate time to writing appropriate and useful tests.

In order to test that your mailer is working as expected you can use unit tests to compare the actual results of the mailer with pre written examples of what should be produced. 1 tests 4 assertions 0 failures 0 errors let s analyze what happened here. In addition to covering the technical aspects of using rspec it also covers best practices for using them so you get the most out of your test suite. Testunit writing test code in ruby 1 3 minitest writing test code in ruby 2 3 rspec writing test code in ruby 3 3 prelude to learning i m training my juniors on how to write test code since we need to improve our code coverage in exampro.

The testing ruby applications with rspec screencast introduces the core rspec libraries through the development of a small cli card game. Rspec now has built in support for mocking but the api is not yet stable. If you re new to minitest then you can take a look at our tutorial on getting started with minitest. What this means is that tests written in rspec focus on the behavior of an application being tested.

I m going to use test unit as most people are still using ruby 1 8. Rspec is the testing library that is built for test driven development from the ground up. Read bruce s previous article on testing in ruby behavior driven testing with rspec the developerworks series real world rails covers caching as well as testing in ror. Different types of tests what kinds of things to test.

Finished in 0 0625 seconds. 12 2 1 revenge of the fixtures. Testapp ruby test unit book test rb here s the output of running the successful test case testapp ruby test unit book test crud rb loaded suite test unit book test started. For the purposes of unit testing a mailer fixtures are used to provide an example of how the output should look.

It s small fast and it aims to make tests clean and readable. Test unit is a xunit family unit testing framework for ruby. The primary differences are that minitest drops the gui tools that test unit contained and minitest unit has replaced test unit s assert not functions with corresponding refute functions.