public void MoveBackward(string value, string backward, string forward)
{
var textInputBuffer = new TextInputBuffer();
foreach (var c in value)
{
textInputBuffer.Insert(c);
}
textInputBuffer.MoveBackward();
Assert.Equal(backward, textInputBuffer.ToBackwardString());
Assert.Equal(forward, textInputBuffer.ToForwardString());
}
public void Delete(string value, string substring)
{
var textInputBuffer = new TextInputBuffer();
foreach (var c in value)
{
textInputBuffer.Insert(c);
}
while (!textInputBuffer.IsStart)
{
textInputBuffer.MoveBackward();
}
textInputBuffer.Delete();
Assert.Equal(substring, textInputBuffer.ToString());
Assert.Equal(string.Empty, textInputBuffer.ToBackwardString());
Assert.Equal(substring, textInputBuffer.ToForwardString());
}