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CollectionAssert.AreEquivalent Method (ICollection, ICollection, String)

Verifies that two specified collections are equivalent. The assertion fails if the collections are not equivalent. 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 AreEquivalent(
	ICollection expected,
	ICollection actual,
	string message


Type: System.Collections.ICollection

The first collection to compare. This contains the elements the unit test expects.

Type: System.Collections.ICollection

The second collection to compare. This is the collection the unit test produced.

Type: System.String

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


An element was found in one of the collections but not in the other.

Two collections are equivalent if they have the same elements in the same quantity, but in any order. Elements are equal if their values are equal, not if they refer to the same object.

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