public void ValidateResourceWithIncorrectElement() { FhirDateTime dt = new FhirDateTime(); dt.Value = "Ewout Kramer"; Observation o = new Observation { Applies = dt }; DiagnosticReport rep = new DiagnosticReport(); rep.Contained = new List <Resource> { o }; var errors = dt.Validate(); Assert.IsTrue(errors.Count == 1); }