aaac7fed
 liuqimichale
add
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var tape = require('tape')
var Hash = require('../hash')
var hex = '0A1B2C3D4E5F6G7H'
function equal (t, a, b) {
t.equal(a.length, b.length)
t.equal(a.toString('hex'), b.toString('hex'))
}
var hexBuf = Buffer.from('0A1B2C3D4E5F6G7H', 'utf8')
var count16 = {
strings: ['0A1B2C3D4E5F6G7H'],
buffers: [
hexBuf,
Buffer.from('80000000000000000000000000000080', 'hex')
]
}
var empty = {
strings: [''],
buffers: [
Buffer.from('80000000000000000000000000000000', 'hex')
]
}
var multi = {
strings: ['abcd', 'efhijk', 'lmnopq'],
buffers: [
Buffer.from('abcdefhijklmnopq', 'ascii'),
Buffer.from('80000000000000000000000000000080', 'hex')
]
}
var long = {
strings: [hex + hex],
buffers: [
hexBuf,
hexBuf,
Buffer.from('80000000000000000000000000000100', 'hex')
]
}
function makeTest (name, data) {
tape(name, function (t) {
var h = new Hash(16, 8)
var hash = Buffer.alloc(20)
var n = 2
var expected = data.buffers.slice()
// t.plan(expected.length + 1)
h._update = function (block) {
var e = expected.shift()
equal(t, block, e)
if (n < 0) {
throw new Error('expecting only 2 calls to _update')
}
}
h._hash = function () {
return hash
}
data.strings.forEach(function (string) {
h.update(string, 'ascii')
})
equal(t, h.digest(), hash)
t.end()
})
}
makeTest('Hash#update 1 in 1', count16)
makeTest('empty Hash#update', empty)
makeTest('Hash#update 1 in 3', multi)
makeTest('Hash#update 2 in 1', long)
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