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| var test = require('tape')
| var b64 = require('../')
| var checks = [
| 'a',
| 'aa',
| 'aaa',
| 'hi',
| 'hi!',
| 'hi!!',
| 'sup',
| 'sup?',
| 'sup?!'
| ]
|
| test('convert to base64 and back', function (t) {
| t.plan(checks.length * 2)
|
| for (var i = 0; i < checks.length; i++) {
| var check = checks[i]
| var b64Str, arr, str
|
| b64Str = b64.fromByteArray(map(check, function (char) { return char.charCodeAt(0) }))
|
| arr = b64.toByteArray(b64Str)
| str = map(arr, function (byte) { return String.fromCharCode(byte) }).join('')
|
| t.equal(check, str, 'Checked ' + check)
| t.equal(b64.byteLength(b64Str), arr.length, 'Checked length for ' + check)
| }
| })
|
| var data = [
| [[0, 0, 0], 'AAAA'],
| [[0, 0, 1], 'AAAB'],
| [[0, 1, -1], 'AAH/'],
| [[1, 1, 1], 'AQEB'],
| [[0, -73, 23], 'ALcX']
| ]
|
| test('convert known data to string', function (t) {
| for (var i = 0; i < data.length; i++) {
| var bytes = data[i][0]
| var expected = data[i][1]
| var actual = b64.fromByteArray(bytes)
| t.equal(actual, expected, 'Ensure that ' + bytes + ' serialise to ' + expected)
| }
| t.end()
| })
|
| test('convert known data from string', function (t) {
| for (var i = 0; i < data.length; i++) {
| var expected = data[i][0]
| var string = data[i][1]
| var actual = b64.toByteArray(string)
| t.ok(equal(actual, expected), 'Ensure that ' + string + ' deserialise to ' + expected)
| var length = b64.byteLength(string)
| t.equal(length, expected.length, 'Ensure that ' + string + ' has byte lentgh of ' + expected.length)
| }
| t.end()
| })
|
| function equal (a, b) {
| var i
| var length = a.length
| if (length !== b.length) return false
| for (i = 0; i < length; ++i) {
| if ((a[i] & 0xFF) !== (b[i] & 0xFF)) return false
| }
| return true
| }
|
| function map (arr, callback) {
| var res = []
| var kValue, mappedValue
|
| for (var k = 0, len = arr.length; k < len; k++) {
| if ((typeof arr === 'string' && !!arr.charAt(k))) {
| kValue = arr.charAt(k)
| mappedValue = callback(kValue, k, arr)
| res[k] = mappedValue
| } else if (typeof arr !== 'string' && k in arr) {
| kValue = arr[k]
| mappedValue = callback(kValue, k, arr)
| res[k] = mappedValue
| }
| }
| return res
| }
|
|
