test(test/shash.js): Add short hash tests

test/shash.js

@@ -0,0 +1,47 @@
+const isBuffer = require('is-buffer')
+const { shash } = require('../shash')
+const test = require('ava')
+
+/* eslint-disable camelcase */
+const {
+ crypto_shorthash_KEYBYTES,
+ crypto_shorthash_BYTES,
+} = require('sodium-universal')
+
+test('shash(message, secretKey) is a function', (t) => {
+ t.true('function' === typeof shash)
+})
+
+test('shash(message, secretKey) throws on bad input', (t) => {
+ t.throws(() => shash(), TypeError)
+ t.throws(() => shash(null, null), TypeError)
+ t.throws(() => shash(123, null), TypeError)
+ t.throws(() => shash(true, null), TypeError)
+ t.throws(() => shash('hello', null), TypeError)
+ t.throws(() => shash(Buffer.alloc(0), null), TypeError)
+ t.throws(() => shash(Buffer.alloc(8), null), TypeError)
+ t.throws(() => shash(Buffer.alloc(8), true), TypeError)
+ t.throws(() => shash(Buffer.alloc(8), 123), TypeError)
+ t.throws(() => shash(Buffer.alloc(8), 'hello'), TypeError)
+ t.throws(() => shash(Buffer.alloc(8), 'hello'), TypeError)
+ t.throws(() => shash(Buffer.alloc(8), Buffer.alloc(0)), RangeError)
+ t.throws(() => shash(
+ Buffer.alloc(8),
+ Buffer.alloc(crypto_shorthash_KEYBYTES + 1)
+ ), RangeError)
+
+ t.throws(() => shash(
+ Buffer.alloc(0),
+ Buffer.alloc(crypto_shorthash_KEYBYTES)
+ ), RangeError)
+})
+
+test('shash(message, secretKey) simple', (t) => {
+ const message = Buffer.from('hello')
+ const key = Buffer.alloc(crypto_shorthash_KEYBYTES).fill('secret')
+ const hash = shash(message, key)
+ t.true(isBuffer(hash))
+ t.true(crypto_shorthash_BYTES === hash.length)
+ t.true(0 === Buffer.compare(hash, shash(message, key)))
+ t.true(0 !== Buffer.compare(shash(hash, key), shash(message, key)))
+})