/* global expect */

describe("Util", function() {
	let cryptoJS = require("../../dist/main.js");
	let util = cryptoJS.util;
	let utf = [ // https://tools.ietf.org/html/rfc3629#page-8
		["", []],
		["abc", [97, 98, 99]],
		["å", [195, 165]],
		["🚅", [240, 159, 154, 133]],
		["žír", [0xc5, 0xbe, 0xc3, 0xad, 114]],
		["A\u2262\u0391.", [0x41, 0xE2, 0x89, 0xA2, 0xCE, 0x91, 0x2E]],
		["\uD55C\uAD6D\uC5B4", [0xED, 0x95, 0x9C, 0xEA, 0xB5, 0xAD, 0xEC, 0x96, 0xB4]],
		["\ud84c\udfb4", [0xf0, 0xa3, 0x8e, 0xb4]]
	];
	let base64 = [
		[[], ""],
		[[102], "Zg=="],
		[[102, 111], "Zm8="],
		[[102, 111, 111], "Zm9v"],
		[[102, 111, 111, 98], "Zm9vYg=="],
		[[102, 111, 111, 98, 97], "Zm9vYmE="],
		[[102, 111, 111, 98, 97, 114], "Zm9vYmFy"]
	];

	describe("bytes2int32s", function() {
		it("should pack bytes into 32b integers", function() {
			expect(util.bytes2int32s([])).toEqual([]);
			expect(util.bytes2int32s([0])).toEqual([0]);
			expect(util.bytes2int32s([1])).toEqual([1]);
			expect(util.bytes2int32s([0x12, 0x34, 0x56, 0x78, 0x9a])).toEqual([0x78563412, 0x9a]);
		});
	});

	describe("str2utf8", function() {
		it("should encode a String into bytes in UTF-8", function() {
			utf.forEach(couple => expect(util.str2utf8(couple[0])).toEqual(couple[1]));
		});
	});

	describe("utf82str", function() {
		it("should decode a String from UTF-8 bytes", function() {
			utf.forEach(couple => expect(util.utf82str(couple[1])).toEqual(couple[0]));
		});
	});


	describe("bytes2base64", function() {
		it("should correctly encode bytes into base64", function() {
			base64.forEach(couple => expect(util.bytes2base64(couple[0])).toEqual(couple[1]));
		});
	});

	describe("base642bytes", function() {
		it("should correctly decode bytes from base64", function() {
			base64.forEach(couple => expect(util.base642bytes(couple[1])).toEqual(couple[0]));
		});
	});
});