public void TestGenerate()
{
SerialNumbers sn = new SerialNumbers(6);
IList <int> ev = new List <int> {
416235
};
CollectionAssert.AreEquivalent((ICollection)ev, (ICollection)sn.GenerateNeighbours(461235));
ev = new List <int> {
142635, 412365, 416235
};
CollectionAssert.AreEquivalent((ICollection)ev, (ICollection)sn.GenerateNeighbours(412635));
}