public void TestRemoveIsotope_IIsotope()
{
MolecularFormulaRange mfRange = new MolecularFormulaRange();
IIsotope carb = builder.NewIsotope("C");
IIsotope flu = builder.NewIsotope("F");
IIsotope h1 = builder.NewIsotope("H");
mfRange.AddIsotope(carb, 0, 10);
mfRange.AddIsotope(flu, 0, 10);
mfRange.AddIsotope(h1, 0, 10);
// remove the Fluorine
mfRange.Remove(flu);
Assert.AreEqual(2, mfRange.Count);
Assert.AreEqual(0, mfRange.GetIsotopeCountMin(carb));
Assert.AreEqual(-1, mfRange.GetIsotopeCountMin(flu));
}