public void FindFirstRecurringCharNullTests()
{
var result = FirstRecurringChar.FindFirstChar("ABC");
Assert.Null(result);
}
public void FindFirstRecurringCharTests()
{
var result = FirstRecurringChar.FindFirstChar("ABCA");
Assert.AreEqual('A', result);
}
public void FindFirstRecurringCharMultipleReccuringTests()
{
var result = FirstRecurringChar.FindFirstChar("BCABA");
Assert.AreEqual('B', result);
}
