Add test

test/sim/prng.js

@@ -0,0 +1,22 @@
+'use strict';
+
+const assert = require('./../assert');
+const {PRNG} = require('../../dist/sim');
+
+describe('CSPRNG', function () {
+	it("should always generate the same results off the same seed", function () {
+		const results = [];
+		const seed = PRNG.generateSeed();
+		let testAgainst = new PRNG(seed);
+		for (let i = 0; i < 100; i++) {
+			results.push(testAgainst.next());
+		}
+		for (let i = 0; i < 10; i++) {
+			const cur = new PRNG(seed);
+			for (let j = 0; j < 100; j++) {
+				const n = cur.next();
+				assert(results[j] === n, `generation ${j} for seed ${seed} did not match (expected: ${results[j]}, got ${n})`);
+			}
+		}
+	});
+});