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CollectionAssert.AllItemsAreInstancesOfType Method (ICollection, Type)


Verifies that all elements in the specified collection are instances of the specified type. The assertion fails if for any element the type is not found in its inheritance hierarchy.

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

public static void AllItemsAreInstancesOfType(
	ICollection collection,
	Type expectedType


Type: System.Collections.ICollection

The collection to verify.

Type: System.Type

The type expected to be found in the inheritance hierarchy of every element in collection.

Exception Condition

An element in collection is null or expectedType is not found in the inheritance hierarchy of all elements in collection.

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