public void HasNext_NoLine_ReturnsFalse()
        {
            var splitter = new SplitterStub();
            var textBox = CreateTextBox(splitter);

            Assert.IsFalse(textBox.HasNext());
        }
        private SplitterStub CreateSplitterStub(List<string> initialLines = null)
        {
            var splitter = new SplitterStub();
            if (initialLines != null)
                splitter.Strings = initialLines;

            return splitter;
        }