public void ToDelimitedString_WithAllProperties_ReturnsCorrectlySequencedFields() { ISegment hl7Segment = new QidSegment { QueryTag = "1", MessageQueryName = new CodedWithExceptions { Identifier = "2" } }; string expected = "QID|1|2"; string actual = hl7Segment.ToDelimitedString(); Assert.Equal(expected, actual); }