ducky/devices
2015-11-14
Parent:b6494e1a499e
ducky/devices/vendor/code.google.com/p/go-uuid/uuid/json.go
Add more interface tests. Add a test to ensure that, when retrieving Devices, no error is returned if a Device cannot be found. Add a test to ensure that, when adding Devices, adding a Device that shares an ID with a Device already in the Storer returns an ErrDeviceAlreadyExists error. This involved creating the ErrDeviceAlreadyExists error, and modifying the in-memory implementation to properly return it. Fix a go vet issue in our previous test, wherein we forgot to pass the storer to a log message, resulting in a mismatch between the number of variables expected and the number of variables provided. Rename our tests to be better reflective of what they actually test.
1 // Copyright 2014 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 import "errors"
9 func (u UUID) MarshalJSON() ([]byte, error) {
10 if len(u) == 0 {
11 return []byte(`""`), nil
12 }
13 return []byte(`"` + u.String() + `"`), nil
14 }
16 func (u *UUID) UnmarshalJSON(data []byte) error {
17 if len(data) == 0 || string(data) == `""` {
18 return nil
19 }
20 if len(data) < 2 || data[0] != '"' || data[len(data)-1] != '"' {
21 return errors.New("invalid UUID format")
22 }
23 data = data[1 : len(data)-1]
24 uu := Parse(string(data))
25 if uu == nil {
26 return errors.New("invalid UUID format")
27 }
28 *u = uu
29 return nil
30 }