Sample Testeroids AAA-style constructor test, using triangulation in order to guarantee no hard-coded values are used in the production code.

DataSegmentSpecs.cs

    public abstract class DataSegmentSpecs
    {
        [TriangulatedFixture]
        public class after_instantiating_Sut_with_triangulated_values : SubjectInstantiationContextSpecification<DataSegment>
        {
            #region Context

            [TriangulationValues(0x00001000u, 0x80100000)]
            private uint InjectedAddress { get; set; }

            [TriangulationValues(new byte[0], new byte[] { 0x00, 0xFF })]
            private byte[] InjectedData { get; set; }

            protected override sealed DataSegment BecauseSutIsCreated()
            {
                return new DataSegment(this.InjectedAddress, this.InjectedData);
            }

            #endregion

            [Test]
            public void then_Address_matches_InjectedAddress()
            {
                Assert.AreEqual(this.InjectedAddress, this.Sut.Address);
            }

            [Test]
            public void then_Data_is_InjectedData()
            {
                Assert.AreEqual(this.InjectedData, this.Sut.Data);
            }
        }
    }