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Assert.IsNull Method (Object, String, Object[])

Verifies that the specified object is null. The assertion fails if it is not null. Displays a message if the assertion fails, and applies the specified formatting to it.

Namespace:  Microsoft.VisualStudio.TestTools.UnitTesting
Assembly:  Microsoft.VisualStudio.QualityTools.UnitTestFramework (in Microsoft.VisualStudio.QualityTools.UnitTestFramework.dll)

public static void IsNull(
	Object value,
	string message,
	params Object[] parameters
)

Parameters

value
Type: System.Object

The object to verify is null.

message
Type: System.String

A message to display if the assertion fails. This message can be seen in the unit test results.

parameters
Type: System.Object[]

An array of parameters to use when formatting message.

ExceptionCondition
AssertFailedException

value is not null.

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