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