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CollectionAssert.Contains Method (ICollection, Object, String, Object[])

Verifies that the specified collection contains the specified element. The assertion fails if the element is not found in the collection. 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 Contains(
	ICollection collection,
	Object element,
	string message,
	params Object[] parameters
)

Parameters

collection
Type: System.Collections.ICollection

The collection in which to search for the element.

element
Type: System.Object

The element that is expected to be in the collection.

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

element is not found in collection.

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