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CollectionAssert.AllItemsAreUnique Method (ICollection, String)

Verifies that all items in the specified collection are unique. The assertion fails if any two elements in the collection are equal. Displays a message if the assertion fails.

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

public static void AllItemsAreUnique(
	ICollection collection,
	string message
)

Parameters

collection
Type: System.Collections.ICollection

The collection in which to search for duplicate elements.

message
Type: System.String

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

ExceptionCondition
AssertFailedException

Two or more equal elements are found in collection.

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