area51/test/random/random-java-tests.js

Experimental prototypes of alien things built in JavaScript. The bits may end up living in a different package.

var assert = require("assert");
var Random = require("../../lib/random/random-java.js");
var Symbol = require("../../lib/es6/symbol");

module.exports = {
	"random - java": {
		"next": function(){ 
			var random = new Random(1);
			
			var next = Symbol.for("next");
			
			assert.ok(Random.prototype[next] !== undefined);
			assert.ok(random[next] !== undefined);
			
			var first = random.nextInt(),
				second = random.nextInt();
				
			assert.notEqual(first, second);
			assert.equal(-1155869325, first);
			assert.equal(431529176, second);
		},
		"nextDouble": function() {
			var random = new Random(1);
			var first = random.nextDouble(),
				second = random.nextDouble();
				
			
			assert.equal(0.7308781907032909, first);
			assert.equal(0.41008081149220166, second);
		},
		"nextBytes": function() {
			var random = new Random(1);
			var buffer = new Int32Array(2);
			random.nextBytes(buffer);
			
			//assert.notEqual(buffer[0], buffer[1]);
			assert.equal(115, buffer[0]);
			assert.equal(-43, buffer[1]);
		} 
	}
};