Before writing unit test, you should have some ideas what the System Under Test code does. This tutorial explores a scenario-based approach, a way to determine what the intended system should do, to define what the unit test will test in our example application.
- [Voiceover] Imagine for a moment…that I am an experienced developer,…and I always write impromptu tests…to verify that my code works.…Also imagine that unit test frameworks don't exist.…How would I construct a system to automate my code tests?…That's the problem that we'll look at in the movies…in the rest of this chapter.…In my business library, I have two methods…that need testing.…There's one here in CommissionCalculator.…It's here on line seven, the DeterminedVariableRate.…And the other method's over here in PaymentDate.…On line 17, CalculateFuturePaymentDate.…
I'll focus on testing this method,…CalculateFuturePaymentDate, for now.…The first step is to determine…what tests to run on the code.…One of the ways you can determine what tests are necessary…is by using scenarios.…I've created a couple scenarios in the Scenarios folder,…and I'll look at this one, PaymentDateScenario.txt.…I'm using a pattern…that is popular in behavior-driven development…called the Given-When-Then pattern.…So you start by stating the purpose for the scenario.…
- Examining types of frameworks
- Choosing a naming convention
- Creating unit tests
- Running unit tests with Visual Studio
- Modifying and correcting code
- Handling exceptions
- Installing and using nUnit
- Viewing test results with CodeLens
Skill Level Intermediate
Q: This course was updated on 08/22/2017. What changed?
A: New videos were added that cover live unit testing and creating a project with the unit test framework.
1. Create a Simple Unit Test Framework
2. Unit Testing Conventions
Choose a naming convention5m 59s
3. Work with Visual Studio Unit Testing Framework
4. Work with xUnit
5. Work with nUnit
6. Additional Topics
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