bip39/test/index.js

70 lines
1.9 KiB
JavaScript

var assert = require('assert')
var wordlist = require('../wordlists/en.json')
var vectors = require('./vectors.json').english
var BIP39 = require('../index.js')
var bip39 = new BIP39()
describe('constructor', function() {
it('defaults language to english', function() {
assert.deepEqual(bip39.wordlist, wordlist)
})
})
describe('mnemonicToSeed', function() {
vectors.forEach(function(v, i) {
it('works for tests vector ' + i, function() {
assert.equal(bip39.mnemonicToSeed(v[1], 'TREZOR'), v[2])
})
})
})
describe('entropyToMnemonic', function() {
vectors.forEach(function(v, i) {
it('works for tests vector ' + i, function() {
assert.equal(bip39.entropyToMnemonic(v[0]), v[1])
})
})
})
describe('generateMnemonic', function() {
it('generates a mnemonic', function() {
var mnemonic = bip39.generateMnemonic(96)
var words = mnemonic.split(' ')
assert.equal(words.length, 9)
})
it('allows a custom RNG to be used', function() {
var rng = function(size) {
var buffer = new Buffer(size)
buffer.fill(4) // guaranteed random
return buffer
}
var mnemonic = bip39.generateMnemonic(64, rng)
assert.equal(mnemonic, 'advice cage absurd amount doctor act')
})
})
describe('validate', function() {
vectors.forEach(function(v, i) {
it('passes check ' + i, function() {
assert(bip39.validate(v[1]))
})
})
it('fails for mnemonics of wrong length', function() {
assert(!bip39.validate('sleep kitten'))
assert(!bip39.validate('sleep kitten sleep kitten sleep kitten'))
})
it('fails for mnemonics that contains words not from the word list', function() {
assert(!bip39.validate("turtle front uncle idea crush write shrug there lottery flower risky shell"))
})
it('fails for mnemonics of invalid checksum', function() {
assert(!bip39.validate('sleep kitten sleep kitten sleep kitten sleep kitten sleep kitten sleep kitten'))
})
})