public void TestAbKeyboard()
{
var keyboard = new Keyboard(new[]{2},SetUtil.NewHash('a','b'));
var firstPos = new KeyboardPosition(0,0);
var secondPos = new KeyboardPosition(0,1);
var times = new TransitionTimes(keyboard);
times[firstPos, secondPos] = 1;
times[firstPos, firstPos] = 2;
times[secondPos, secondPos] = 2;
times[secondPos, firstPos] = 2;
var goodLayout = new KeyboardLayout("ab", keyboard);
var badLayout = new KeyboardLayout("ba",keyboard);
var occurrences = new double[keyboard.AllChars.Count, keyboard.AllChars.Count];
var corpus = new Corpus(occurrences, 1000,keyboard);
corpus['a', 'b'] = 100;
var goodScore = KeyboardEPAlgorithm.Score(goodLayout, corpus, times);
var badScore = KeyboardEPAlgorithm.Score(badLayout, corpus, times);
Assert.That(goodScore > badScore);
}
KeyboardEPAlgorithm GetTestAlgorithm()
{
const int width = 3;
const int height = 3;
const int keyboardKeyCount = width * height;
var keyboard = new Keyboard(Enumerable.Range(0, height).Select(_ => width).ToArray(),
Keyboard.StandardKeyboard.AllChars.Take(keyboardKeyCount).ToHashSet());
var timeBuilder = TransitionTimeBuilder.GetEmpty(keyboard);
var fractions = new double[keyboardKeyCount, keyboardKeyCount];
for (var i = 0; i < keyboardKeyCount; i++)
{
for (var j = i; j < keyboardKeyCount; j++)
{
var miliseconds = i + j * keyboardKeyCount;
timeBuilder[i, j].AddMeasurement(miliseconds);
fractions[i, j] = miliseconds;
}
}
var corpus = new Corpus(fractions, keyboardKeyCount, keyboard);
var algorithm = new KeyboardEPAlgorithm(corpus, timeBuilder.Times, GetLogger());
algorithm.SetLayout(KeyboardLayout.Random(keyboard));
return algorithm;
}
void AddNamedCorpus(string name, Corpus corpus)
{
corpi.Add(Tuple.Create(corpus,name));
}
