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 );