lepu-test-platform-web/node_modules/dns-txt/test.js

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'use strict'
var test = require('tape')
var txtStr = require('./')()
var txtBin = require('./')({ binary: true })
var obj = {
String: 'foo',
number: 42,
empty: '',
null: null,
bool: true,
buffer: new Buffer('bar')
}
test('encodingLength', function (t) {
var len = txtBin.encodingLength(obj)
t.equal(len, 54)
t.end()
})
test('encode', function (t) {
var buf = txtBin.encode(obj)
var expected = new Buffer('0a' + '537472696e67' + '3d' + '666f6f' +
'09' + '6e756d626572' + '3d' + '3432' +
'06' + '656d707479' + '3d' +
'09' + '6e756c6c' + '3d' + '6e756c6c' +
'04' + '626f6f6c' +
'0a' + '627566666572' + '3d' + '626172', 'hex')
t.deepEqual(buf, expected)
t.equal(txtBin.encode.bytes, expected.length)
t.end()
})
test('encode - empty', function (t) {
var buf = txtBin.encode({})
var expected = new Buffer('00', 'hex')
t.deepEqual(buf, expected)
t.equal(txtBin.encode.bytes, expected.length)
t.end()
})
test('encode - undefined', function (t) {
var buf = txtBin.encode()
var expected = new Buffer('00', 'hex')
t.deepEqual(buf, expected)
t.equal(txtBin.encode.bytes, expected.length)
t.end()
})
test('encode - with buffer', function (t) {
var buf = new Buffer(3)
buf.fill(255)
txtBin.encode({}, buf)
var expected = new Buffer('00ffff', 'hex')
t.deepEqual(buf, expected)
t.equal(txtBin.encode.bytes, 1)
t.end()
})
test('encode - with buffer and offset', function (t) {
var buf = new Buffer(3)
buf.fill(255)
txtBin.encode({}, buf, 1)
var expected = new Buffer('ff00ff', 'hex')
t.deepEqual(buf, expected)
t.equal(txtBin.encode.bytes, 1)
t.end()
})
test('decode', function (t) {
var encoded = txtBin.encode(obj)
var result = txtBin.decode(encoded)
var expected = {
string: new Buffer('foo'),
number: new Buffer('42'),
empty: new Buffer(0),
null: new Buffer('null'),
bool: true,
buffer: new Buffer('bar')
}
t.deepEqual(result, expected)
t.equal(txtBin.decode.bytes, encoded.length)
t.end()
})
test('decode - strings', function (t) {
var encoded = txtStr.encode(obj)
var result = txtStr.decode(encoded)
var expected = {
string: 'foo',
number: '42',
empty: '',
null: 'null',
bool: true,
buffer: 'bar'
}
t.deepEqual(result, expected)
t.equal(txtStr.decode.bytes, encoded.length)
t.end()
})
test('decode - duplicate', function (t) {
var orig = {
Foo: 'bar',
foo: 'ignore this'
}
var expected = {
foo: new Buffer('bar')
}
var encoded = txtBin.encode(orig)
var result = txtBin.decode(encoded)
t.deepEqual(result, expected)
t.equal(txtBin.decode.bytes, encoded.length)
t.end()
})
test('decode - single zero bype', function (t) {
var encoded = new Buffer('00', 'hex')
var result = txtBin.decode(encoded)
t.deepEqual(result, {})
t.equal(txtBin.decode.bytes, encoded.length)
t.end()
})
test('decode - with offset', function (t) {
var encoded = new Buffer('012300', 'hex')
var result = txtBin.decode(encoded, 2)
t.deepEqual(result, {})
t.equal(txtBin.decode.bytes, 1)
t.end()
})
test('decode - exactly 256 bytes', function (t) {
var expected = { foo: '' }
var maxLength = Object.keys(expected).reduce(function (total, key) {
return total - key.length - 1 // - 1 for the equal sign used to separate the key and the value
}, 255)
for (var n = 0; n < maxLength; n++) {
expected.foo += 'x'
}
// the max case:
var encoded = txtStr.encode(expected)
t.equal(txtStr.encode.bytes, 256)
var result = txtStr.decode(encoded)
t.deepEqual(result, expected)
t.equal(txtStr.decode.bytes, encoded.length)
// go beound the max:
expected.foo += 'x'
encoded = txtStr.encode(expected)
t.equal(txtStr.encode.bytes, 257)
result = txtStr.decode(encoded)
t.notDeepEqual(result, expected)
t.ok(txtStr.decode.bytes > encoded.length)
t.end()
})