public void LastIndexReturnsEmptyString()
{
var paper = new Paper();
var pencil = new Pencil();
paper.Text.Add("aa");
var sut = new EditHelper(paper, pencil);
var result = sut.GetStringToAppendToEditArea(0);
Assert.True(result == "");
}
public void ReturnStringInNextIndex()
{
var paper = new Paper();
var pencil = new Pencil();
paper.Text.Add("aa");
paper.Text.Add("bb");
var sut = new EditHelper(paper, pencil);
var result = sut.GetStringToAppendToEditArea(0);
Assert.True(result == " bb");
}
