public void KeyGroup_ToLinkedSymbols_WithoutLetters_OK()
{
var sut = new KeyGroup("0");
var symbols = sut.ToLinkedSymbols().ToArray();
Assert.AreEqual(1, symbols.Length);
var symbol = symbols[0];
Assert.AreEqual('0', symbol.Value);
Assert.AreEqual('0', symbol.MainDigit);
Assert.AreEqual(char.MinValue, symbol.Previous);
Assert.AreEqual(char.MinValue, symbol.Next);
}
public void KeyGroup_ToLinkedSymbols_WithLetters_OK()
{
var sut = new KeyGroup("2ABC");
var symbols = sut.ToLinkedSymbols().ToArray();
Assert.AreEqual(4, symbols.Length);
foreach (var s in symbols)
{
Assert.AreEqual('2', s.MainDigit);
}
var digit = symbols[0];
Assert.AreEqual(char.MinValue, digit.Previous);
Assert.AreEqual('2', digit.Value);
Assert.AreEqual('A', digit.Next);
var firstLetter = symbols[1];
Assert.AreEqual('2', firstLetter.Previous);
Assert.AreEqual('A', firstLetter.Value);
Assert.AreEqual('B', firstLetter.Next);
var secondLetter = symbols[2];
Assert.AreEqual('A', secondLetter.Previous);
Assert.AreEqual('B', secondLetter.Value);
Assert.AreEqual('C', secondLetter.Next);
var lastLetter = symbols[3];
Assert.AreEqual('B', lastLetter.Previous);
Assert.AreEqual('C', lastLetter.Value);
Assert.AreEqual(char.MinValue, lastLetter.Next);
}
