Optional with v2.5
[TestFixture]
CalculatorTests
[Test]
ShouldAddTwoNumbers()
sut
S
U
T
[Test]
ShouldAddTwoNumbers()
actual
Assert.That
expected
Is.EqualTo
Errors & Issues
Productivity
Automation
Customer
Happiness
NUnit
http://nunit.org
Learn more & try tutorials
Introduction to NUnit and TDD
NUnit with c#
Unit Testing Using NUnit
Test Driven Development Using NUnit in c#