public Range(
T low,
T high)
{
Range.AssertIsValid(low, high);
Low = low;
High = high;
}
public static void CheckValidity(double low, double high)
{
Range.IsValid(low, high).Should().BeTrue();
var a = Boundary.Create(low, true);
Range.IsValid(a, a).Should().BeTrue();
var b = Boundary.Create(high, true);
Range.AssertIsValid(a, b).Should().BeTrue();
var c = Boundary.Create(low, false);
Range.IsValid(c, b).Should().BeTrue();
Range.IsValid(c, a).Should().BeFalse();
Range.IsValid(c, c).Should().BeFalse();
Assert.Throws <ArgumentException>(() => Range.AssertIsValid(a, c));
var d = Boundary.Create(high, false);
Range.IsValid(b, d).Should().BeFalse();
}