public void AddTextToList_HaveTextFromClipboard_ShouldHaveNewItemInList()
{
SetText("Adding item to directory.");
var firstCopy = _clipboardService.AddTextToList(_clipboardService.GetTextFromClipboard());
Assert.AreEqual(1, firstCopy.Count);
Assert.AreEqual("Adding item to directory.", firstCopy.First());
SetText("Second item to directory.");
var secondCopy = _clipboardService.AddTextToList(_clipboardService.GetTextFromClipboard());
Assert.AreEqual(2, secondCopy.Count);
Assert.AreEqual("Second item to directory.", secondCopy[0]);
}