How do I use Assert to verify that an exception has been thrown?

c# unit-testing mstest assert vs-unit-testing-framework
Alex picture Alex · Jun 1, 2009 · Viewed 550.1k times · Source

How do I use Assert (or other Test class?) to verify that an exception has been thrown?

Answer

Kevin Pullin picture Kevin Pullin · Jun 1, 2009

For "Visual Studio Team Test" it appears you apply the ExpectedException attribute to the test's method.

Sample from the documentation here: A Unit Testing Walkthrough with Visual Studio Team Test

[TestMethod]
[ExpectedException(typeof(ArgumentException),
    "A userId of null was inappropriately allowed.")]
public void NullUserIdInConstructor()
{
   LogonInfo logonInfo = new LogonInfo(null, "P@ss0word");
}

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