| 12345678910111213141516171819202122232425262728 | var test = require('tape')var crypto = require('./browser')var Buffer = require('safe-buffer').Buffertest('sync', function (t) {  t.test('first', function (t) {    const buf = Buffer.alloc(10)    const before = buf.toString('hex')    crypto.randomFillSync(buf, 5, 5)    const after = buf.toString('hex')    t.notEqual(before, after)    t.equal(before.slice(0, 10), after.slice(0, 10))    t.end()  })})test('async', function (t) {  t.test('first', function (t) {    const buf = Buffer.alloc(10)    const before = buf.toString('hex')    crypto.randomFill(buf, 5, 5, function (err, bufa) {      t.error(err)      const after = bufa.toString('hex')      t.notEqual(before, after)      t.equal(before.slice(0, 10), after.slice(0, 10))      t.ok(buf === bufa, 'same buffer')      t.end()    })  })})
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