public void MU_ctor()
{
var munit = new MeasurementUnit();
munit.SetLengthUnit(LengthUnit.INCH);
Assert.AreEqual(3.937e-5, munit.ConvToMicron, .000001);
Assert.AreEqual("INCH", munit.Name);
Assert.AreEqual(LengthUnit.INCH, munit.LengthUnits);
}