e using one of the forms of the
   Assert.That() method, which has a number of overloads...

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Assert.That( object actual, IResolveConstraint constraint )
Assert.That( object actual, IResolveConstraint constraint,
             string message )
Assert.That( object actual, IResolveConstraint constraint,
             string message, object[] parms )

Assert.That( ActualValueDelegate del, IResolveConstraint constraint )
Assert.That( ActualValueDeleg