public void Addition() { const int expectedReadoutsCount = 4; var expectedReadouts = new List <double> { 3, 2.5, 8, -1 }; var result = _subject.Addition(_signal1, _signal2); Assert.That(result.Readouts, Is.Not.Null); Assert.That(result.Readouts.Count, Is.EqualTo(expectedReadoutsCount)); Assert.That(result.Readouts, Is.EqualTo(expectedReadouts)); }