'use strict'; var common = require('../common'); var assert = require('assert'); if (!common.hasCrypto) { common.skip('missing crypto'); return; } var crypto = require('crypto'); var stream = require('stream'); var s = new stream.PassThrough(); var h = crypto.createHash('sha1'); var expect = '15987e60950cf22655b9323bc1e281f9c4aff47e'; s.pipe(h).on('data', common.mustCall(function(c) { assert.equal(c, expect); })).setEncoding('hex'); s.end('aoeu');