项目原始demo,不改动
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  1. var isBuffer = require('../')
  2. var test = require('tape')
  3. test('is-buffer', function (t) {
  4. t.equal(isBuffer(Buffer.alloc(4)), true, 'new Buffer(4)')
  5. t.equal(isBuffer(Buffer.allocUnsafeSlow(100)), true, 'SlowBuffer(100)')
  6. t.equal(isBuffer(undefined), false, 'undefined')
  7. t.equal(isBuffer(null), false, 'null')
  8. t.equal(isBuffer(''), false, 'empty string')
  9. t.equal(isBuffer(true), false, 'true')
  10. t.equal(isBuffer(false), false, 'false')
  11. t.equal(isBuffer(0), false, '0')
  12. t.equal(isBuffer(1), false, '1')
  13. t.equal(isBuffer(1.0), false, '1.0')
  14. t.equal(isBuffer('string'), false, 'string')
  15. t.equal(isBuffer({}), false, '{}')
  16. t.equal(isBuffer([]), false, '[]')
  17. t.equal(isBuffer(function foo () {}), false, 'function foo () {}')
  18. t.equal(isBuffer({ isBuffer: null }), false, '{ isBuffer: null }')
  19. t.equal(isBuffer({ isBuffer: function () { throw new Error() } }), false, '{ isBuffer: function () { throw new Error() } }')
  20. t.end()
  21. })