public void ToDelimitedString_WithAllProperties_ReturnsCorrectlySequencedFields() { IType hl7Type = new CompositeIdWithCheckDigit { IdNumber = 1, CheckDigit = "2", CodeIdentifyingTheCheckDigitSchemeEmployed = "3", AssigningAuthority = new HierarchicDesignator { NamespaceId = "4" } }; string expected = "1^2^3^4"; string actual = hl7Type.ToDelimitedString(); Assert.Equal(expected, actual); }