public void TestDieExpression()
{
var de = new DiceExpression("1d6");
Assert.AreEqual(3.5, de.GetExpected());
Assert.AreEqual(1, de.GetMin());
Assert.AreEqual(6, de.GetMax());
de = new DiceExpression("2d6");
Assert.AreEqual(7, de.GetExpected());
Assert.AreEqual(2, de.GetMin());
Assert.AreEqual(12, de.GetMax());
de = new DiceExpression("1d12");
Assert.AreEqual(6.5, de.GetExpected());
Assert.AreEqual(1, de.GetMin());
Assert.AreEqual(12, de.GetMax());
de = new DiceExpression("1d6", new Random(0));
var results = new Dictionary <int, int>()
{
{ 1, 0 },
{ 2, 0 },
{ 3, 0 },
{ 4, 0 },
{ 5, 0 },
{ 6, 0 }
};
for (var i = 0; i < 6000; i++)
{
results[(int)de.Roll()]++;
}
Assert.LessOrEqual(Math.Abs(results[1] - 1000), 50);
Assert.LessOrEqual(Math.Abs(results[2] - 1000), 50);
Assert.LessOrEqual(Math.Abs(results[3] - 1000), 50);
Assert.LessOrEqual(Math.Abs(results[4] - 1000), 50);
Assert.LessOrEqual(Math.Abs(results[5] - 1000), 50);
Assert.LessOrEqual(Math.Abs(results[6] - 1000), 50);
}