#Whitebox learning unity web player how to
#Whitebox learning unity web player code

And since youвЂ™re designing the preconditions for your unit tests, they wonвЂ™t ever detect problems triggered by preconditions that you didnвЂ™t anticipate (for example, if some unexpected IHttpModule interferes with incoming requests). Also, defects in an individual component may bear no relationship to the symptoms an end user would experience and report. Proving that components X and Y both work independently doesnвЂ™t prove that theyвЂ™re compatible with one another or configured correctly. But when your application is run for real, all those units have to work together, and the whole is more complex and subtle than the sum of its independently-tested parts.

#Whitebox learning unity web player code

Unit tests, by definition, examine each unit of your code separately. In my experience, unit tests are not an effective way to find bugs or detect regressions. Now, IвЂ™m strongly in favour of unit testing, but only when you understand what role unit tests play within the Test Driven Development (TDD) process, and squash any misconception that unit tests have anything to do with testing for bugs. Does that sound agile to you? Unit testing is not about finding bugs Bad assumption! ItвЂ™s overwhelmingly easy to write bad unit tests that add very little value to a project while inflating the cost of code changes astronomically. Once they saw red and green lights, they assumed they were doing it correctly. IвЂ™m not blaming the developer: Usually, he or she just got told to start unit testing, so they installed NUnit and started churning out methods. Most of the unit tests I see are pretty unhelpful. Even if youвЂ™re a brilliant coder with decades of experience, your existing knowledge and habits wonвЂ™t automatically lead you to write good unit tests, because itвЂ™s a different kind of coding and most people start with unhelpful false assumptions about what unit tests are supposed to achieve.

#Whitebox learning unity web player how to

WhatвЂ™s the difference between a good unit test and a bad one? How do you learn how to write good unit tests? ItвЂ™s far from obvious.