public void text_shown_and_entered_correct_after_compute(string input, string expected)
        {
            var accuracy = new Accuracy(new AnalyticData {
                TextShown = input, TextEntered = expected
            });

            accuracy.Compute();
            Assert.That(accuracy.GetTextShown(), Is.EqualTo(input));
            Assert.That(accuracy.GetTextEntered(), Is.EqualTo(expected));
        }