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Assert.IsNull Method

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Verifies that a specified object is null.

This member is overloaded. For complete information about this member, including syntax, usage, and examples, click a name in the overload list.

Overload List

  Name Description
Public methodStatic member IsNull(Object) Verifies that the specified object is nulla null reference (Nothing in Visual Basic). The assertion fails if it is not nulla null reference (Nothing in Visual Basic).
Public methodStatic member IsNull(Object, String) Verifies that the specified object is nulla null reference (Nothing in Visual Basic). The assertion fails if it is not nulla null reference (Nothing in Visual Basic). Displays a message if the assertion fails.
Public methodStatic member IsNull(Object, String, array<Object[]) Verifies that the specified object is nulla null reference (Nothing in Visual Basic). The assertion fails if it is not nulla null reference (Nothing in Visual Basic). Displays a message if the assertion fails, and applies the specified formatting to it.

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Reference

Assert Class

Microsoft.VisualStudio.TestTools.UnitTesting Namespace