text: import crypto from "crypto";
  import tape from "tape";
  import { sha1 } from "../";
  var Sha1 = { sha1 }.sha1;
  var inputs = [
      ['', 'ascii'],
      ['abc', 'ascii'],
      ['123', 'ascii'],
      ['123456789abcdef123456789abcdef123456789abcdef123456789abcdef', 'ascii'],
      ['123456789abcdef123456789abcdef123456789abcdef123456789abc', 'ascii'],
      ['123456789abcdef123456789abcdef123456789abcdef123456789ab', 'ascii'],
      ['0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcde', 'ascii'],
      ['0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef', 'ascii'],
      ['foobarbaz', 'ascii']
  ];
  tape("hash is the same as node's crypto", function (t) {
      inputs.forEach(function (v) {
          var a = new Sha1().update(v[0], v[1]).digest('hex');
          var e = crypto.createHash('sha1').update(v[0], v[1]).digest('hex');
          console.log(a, '==', e);
          t.equal(a, e);
      });
      t.end();
  });
  tape('call update multiple times', function (t) {
      inputs.forEach(function (v) {
          var hash = new Sha1();
          var _hash = crypto.createHash('sha1');
          for (var i = 0; i < v[0].length; i = (i + 1) * 2) {
              var s = v[0].substring(i, (i + 1) * 2);
              hash.update(s, v[1]);
              _hash.update(s, v[1]);
          }
          var a = hash.digest('hex');
          var e = _hash.digest('hex');
          console.log(a, '==', e);
          t.equal(a, e);
      });
      t.end();
  });
  tape('call update twice', function (t) {
      var _hash = crypto.createHash('sha1');
      var hash = new Sha1();
      _hash.update('foo', 'ascii');
      hash.update('foo', 'ascii');
      _hash.update('bar', 'ascii');
      hash.update('bar', 'ascii');
      _hash.update('baz', 'ascii');
      hash.update('baz', 'ascii');
      var a = hash.digest('hex');
      var e = _hash.digest('hex');
      t.equal(a, e);
      t.end();
  });
  tape('hex encoding', function (t) {
      inputs.forEach(function (v) {
          var hash = new Sha1();
          var _hash = crypto.createHash('sha1');
          for (var i = 0; i < v[0].length; i = (i + 1) * 2) {
              var s = v[0].substring(i, (i + 1) * 2);
              hash.update(Buffer.from(s, 'ascii').toString('hex'), 'hex');
              _hash.update(Buffer.from(s, 'ascii').toString('hex'), 'hex');
          }
          var a = hash.digest('hex');
          var e = _hash.digest('hex');
          console.log(a, '==', e);
          t.equal(a, e);
      });
      t.end();
  });
  tape('call digest for more than MAX_UINT32 bits of data', function (t) {
      var _hash = crypto.createHash('sha1');
      var hash = new Sha1();
      var bigData = Buffer.alloc(0x1ffffffff / 8);
      hash.update(bigData);
      _hash.update(bigData);
      var a = hash.digest('hex');
      var e = _hash.digest('hex');
      t.equal(a, e);
      t.end();
  });
  