NUnit - IdentityAsserts

## Identity Asserts

Assert.AreSame and Assert.AreNotSame test whether the same objects are referenced by the two arguments.

    Assert.AreSame( object expected, object actual );
    Assert.AreSame( object expected, object actual, string message );
    Assert.AreSame( object expected, object actual, string message,
                    params object[] parms );

    Assert.AreNotSame( object expected, object actual );
    Assert.AreNotSame( object expected, object actual, string message );
    Assert.AreNotSame( object expected, object actual, string message,
                    params object[] parms );

Assert.Contains is used to test whether an object is contained in an array or list.

    Assert.Contains( object anObject, IList collection );
    Assert.Contains( object anObject, IList collection,
                    string message );
    Assert.Contains( object anObject, IList collection,
                    string message, params object[] parms );