public void GivenInput_MatchesShouldReturn(double?lowerBoundary, double?upperBoundary, double testValue, bool expected) { // arrange var sut = new Severity { LowerBoundary = lowerBoundary, UpperBoundary = upperBoundary, Value = -1, }; // act var actual = sut.Matches(testValue); // assert Assert.Equal(expected, actual); }