public void numberSystemTest()
{
var n = new NumberSystem();
Assert.AreEqual("233", n.numberSystem(new[] { 2, 3 }, 10));
Assert.AreEqual("3003", n.numberSystem(new[] { 0, 3 }, 10));
Assert.AreEqual("99", n.numberSystem(new[] { 3, 6, 9 }, 12));
Assert.AreEqual("13", n.numberSystem(new[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 }, 12));
Assert.AreEqual("47788878774888", n.numberSystem(new[] { 4, 7, 8 }, 3274653));
Assert.AreEqual("6777773700344", n.numberSystem(new[] { 0, 3, 4, 6, 7 }, 976512538));
Assert.AreEqual("482288408808484", n.numberSystem(new[] { 0, 2, 4, 8 }, 763247855));
Assert.AreEqual("0", n.numberSystem(new[] { 0, 6 }, 1));
}
