ducky/devices
2015-11-29
Parent:b6494e1a499e
ducky/devices/vendor/code.google.com/p/go-uuid/uuid/version4.go
Add tests for ToSlice and ToMap. Add simple unit tests that verify that ToSlice and ToMap both work as we expect. These are probably overly-simplistic, but so are the functions we're testing. Not sure about this... feel a bit conflicted. But let's try it.
1 // Copyright 2011 Google Inc. All rights reserved.
2 // Use of this source code is governed by a BSD-style
3 // license that can be found in the LICENSE file.
5 package uuid
7 // Random returns a Random (Version 4) UUID or panics.
8 //
9 // The strength of the UUIDs is based on the strength of the crypto/rand
10 // package.
11 //
12 // A note about uniqueness derived from from the UUID Wikipedia entry:
13 //
14 // Randomly generated UUIDs have 122 random bits. One's annual risk of being
15 // hit by a meteorite is estimated to be one chance in 17 billion, that
16 // means the probability is about 0.00000000006 (6 × 10−11),
17 // equivalent to the odds of creating a few tens of trillions of UUIDs in a
18 // year and having one duplicate.
19 func NewRandom() UUID {
20 uuid := make([]byte, 16)
21 randomBits([]byte(uuid))
22 uuid[6] = (uuid[6] & 0x0f) | 0x40 // Version 4
23 uuid[8] = (uuid[8] & 0x3f) | 0x80 // Variant is 10
24 return uuid
25 }