public void RandomChars_outOfBounds_returnNull()
{
//Arrange
HiraganaCharacters hiragana = new HiraganaCharacters();
//Act
var result1 = hiragana.getRandomChars(47);
var result2 = hiragana.getRandomChars(-5);
//Assert
Assert.IsNull(result1);
Assert.IsNull(result2);
}
public void SetDifficulty_DecreaseDifficulty_ExpectDecreasingAmountOfEntries()
{
//Arrange
HiraganaCharacters hiragana = new HiraganaCharacters();
//Act and Assert
hiragana.setDifficulty(4);
Assert.IsTrue(hiragana.getRandomChars(40).Count == 40);
Assert.IsNull(hiragana.getRandomChars(46));
hiragana.setDifficulty(2);
Assert.IsNull(hiragana.getRandomChars(22));
Assert.IsTrue(hiragana.getRandomChars(20).Count == 20);
hiragana.setDifficulty(-5);
Assert.IsTrue(hiragana.getRandomChars(10).Count == 10);
}
public void RandomChars_inRange_returnStringOfSizeN()
{
//Arrange
HiraganaCharacters hiragana = new HiraganaCharacters();
//Act
var result = hiragana.getRandomChars(46);
//Assert
Assert.IsNotNull(result);
Assert.IsTrue(result.Count == 46);
}
private void setTextForButtons()
{
Random rng = new Random();
int next;
//3*2 = 6
Dictionary <string, string> keyValuePairs = hiragana.getRandomChars(3);
//all of this only works because the amount of buttons has to be even
do
{
var keyValuePair = keyValuePairs.First();
next = rng.Next(buttons.Count);
buttons[next].Text = keyValuePair.Key;
buttons.RemoveAt(next);
next = rng.Next(buttons.Count);
buttons[next].Text = keyValuePair.Value;
buttons.RemoveAt(next);
keyValuePairs.Remove(keyValuePair.Key);
} while (buttons.Count > 0 && keyValuePairs.Count > 0);
}
