/*
 * test/10_dadd.js - dadd tests
 *
 * @licstart  The following is the entire license notice for the
 * JavaScript code in this file.
 *
 * Copyright (C) 2017  Libiquity LLC
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * As additional permission under GNU GPL version 3 section 7, you
 * may distribute non-source (e.g. minimized or compacted) forms of
 * this program without the copy of the GNU GPL normally required by
 * section 4, provided you include this license notice and a URL
 * through which recipients can access the Corresponding Source.
 *
 * @licend  The above is the entire license notice
 * for the JavaScript code in this file.
 */

var assert = require("assert");
require("../lib/decmath.js");

describe("dadd()", function() {
	var tests = [
		/*   a      b       c */
		[ 2   ,  2   ,  "4."  ],
		[ 1   ,  0.23,  "1.23"],
		[ 0.23,  1   ,  "1.23"],
		[ 1   , -1   ,  "0."  ],
		[-1   ,  1   ,  "0."  ],
		[ 1.23,  4.56,  "5.79"],
		[-1.23,  4.56,  "3.33"],
		[-1.23, -4.56, "-5.79"],
		[ 0.1 ,  0.1 ,   ".2" ],
		[-0.1 , -0.1 ,  "-.2" ],
		[ 0.1 , -0.1 ,   ".0" ],
		[-0.1 ,  0.1 ,   ".0" ],
		[ 9.95,  0.52, "10.47"],
	];
	tests.forEach(function(test) {
		it("correctly adds " + test[0] + " + " + test[1] + " = " +
			test[2], function() {
				assert.equal(dadd(test[0], test[1]), test[2]);
		});
	});
	it("correctly adds 0.01 10000 times", function() {
		var a = 0;
		for (var i = 0; i < 10000; ++i) {
			a = dadd(a, 0.01);
		}
		assert.equal(a, "100.00");
	});
});