34 lines
1,015 B
JavaScript
34 lines
1,015 B
JavaScript
|
let MT;
|
||
|
|
try { MT = require("../../random/mersennetwister.js"); } catch(e) { MT = window; }
|
||
|
|
|
||
|
|
QUnit.test("Random.init() with no seed value", function() {
|
||
|
|
Random.init();
|
||
|
|
ok(Random.seed, "random seed is not null.");
|
||
|
|
});
|
||
|
|
|
||
|
|
QUnit.test("Random.init() with provided seed", function() {
|
||
|
|
var seed = new Date().getTime();
|
||
|
|
Random.init(seed);
|
||
|
|
assert.equal(Random.seed, seed, "seed is correct");
|
||
|
|
});
|
||
|
|
|
||
|
|
QUnit.test("Random.range() PRNG reproducibility", function() {
|
||
|
|
var seed, result1, result2;
|
||
|
|
seed = new Date().getTime();
|
||
|
|
Random.init(seed);
|
||
|
|
result1 = Random.range(1, 20);
|
||
|
|
Random.init(seed);
|
||
|
|
result2 = Random.range(1, 20);
|
||
|
|
assert.equal(result1, result2, "both results are the same")
|
||
|
|
});
|
||
|
|
|
||
|
|
QUinit.test("Random.choose() with equal distribution", function() {
|
||
|
|
var i, tmp, foo = 0, bar = 0;
|
||
|
|
for(i = 0; i < 100; i++) {
|
||
|
|
tmp = Random.choose([[1, 'foo'], [1, 'bar']]);
|
||
|
|
if (tmp == "foo") { foo += 1; }
|
||
|
|
if (tmp == "bar") { bar += 1; }
|
||
|
|
}
|
||
|
|
assert.ok(bar > 0 && foo > 0, "both objects were chosen")
|
||
|
|
});
|