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notes/node_modules/is-buffer/test/basic.js
Patrick Marsceill b7b0d0d7bf
Initial commit
2017-03-09 13:16:08 -05:00

26 lines
982 B
JavaScript

var buffer = require('buffer')
var isBuffer = require('../')
var test = require('tape')
test('is-buffer', function (t) {
t.equal(isBuffer(new Buffer(4)), true, 'new Buffer(4)')
t.equal(isBuffer(buffer.SlowBuffer(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()
})