public void Random_ability_is_within_range()
{
for (var i = 0; i < 10; i++)
{
Assert.InRange(DndCharacter.Ability(), 3, 18);
}
}
public void Random_ability_is_distributed_correctly()
{
var expectedDistribution = new Dictionary <int, int>
{
[3] = 1, [4] = 4,
[5] = 10, [6] = 21,
[7] = 38, [8] = 62,
[9] = 91, [10] = 122,
[11] = 148, [12] = 167,
[13] = 172, [14] = 160,
[15] = 131, [16] = 94,
[17] = 54, [18] = 21
};
var actualDistribution = new Dictionary <int, int>();
const int times = 100;
const int possibleCombinationsCount = 6 * 6 * 6 * 6; // 4d6
for (var i = 3; i <= 18; i++)
{
actualDistribution[i] = 0;
}
for (var i = 0; i < times * possibleCombinationsCount; i++)
{
var ability = DndCharacter.Ability();
actualDistribution[ability]++;
}
int min(int expected) => (int)(expected * (times * 0.8));
int max(int expected) => (int)(expected * (times * 1.2));
foreach (var k in expectedDistribution.Keys)
{
Assert.InRange(actualDistribution[k], min(expectedDistribution[k]), max(expectedDistribution[k]));
}
}
public void Random_ability_is_distributed_correctly()
{
var expectedDistribution = new Dictionary <int, int>
{
[3] = 1, [4] = 4,
[5] = 10, [6] = 21,
[7] = 38, [8] = 62,
[9] = 91, [10] = 122,
[11] = 148, [12] = 167,
[13] = 172, [14] = 160,
[15] = 131, [16] = 94,
[17] = 54, [18] = 21
};
var actualDistribution = new Dictionary <int, int>(expectedDistribution);
foreach (var key in actualDistribution.Keys)
{
actualDistribution[key] = 0;
}
const int times = 250;
const int possibleCombinationsCount = 6 * 6 * 6 * 6; // 4d6
for (var i = 0; i < times * possibleCombinationsCount; i++)
{
actualDistribution[DndCharacter.Ability()]++;
}
const double minTimes = times * 0.8;
const double maxTimes = times * 1.2;
foreach (var k in expectedDistribution.Keys)
{
Assert.InRange(actualDistribution[k], expectedDistribution[k] * minTimes, expectedDistribution[k] * maxTimes);
}
}