patreon/examples/node_modules/is-buffer/test/basic.js

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var isBuffer = require('../')
var test = require('tape')

test('is-buffer', function (t) {
  t.equal(isBuffer(Buffer.alloc(4)), true, 'new Buffer(4)')
  t.equal(isBuffer(Buffer.allocUnsafeSlow(100)), true, 'SlowBuffer(100)')

  t.equal(isBuffer(undefined), false, 'undefined')
  t.equal(isBuffer(null), false, 'null')
  t.equal(isBuffer(''), false, 'empty string')
  t.equal(isBuffer(true), false, 'true')
  t.equal(isBuffer(false), false, 'false')
  t.equal(isBuffer(0), false, '0')
  t.equal(isBuffer(1), false, '1')
  t.equal(isBuffer(1.0), false, '1.0')
  t.equal(isBuffer('string'), false, 'string')
  t.equal(isBuffer({}), false, '{}')
  t.equal(isBuffer([]), false, '[]')
  t.equal(isBuffer(function foo () {}), false, 'function foo () {}')
  t.equal(isBuffer({ isBuffer: null }), false, '{ isBuffer: null }')
  t.equal(isBuffer({ isBuffer: function () { throw new Error() } }), false, '{ isBuffer: function () { throw new Error() } }')

  t.end()
})