1// Copyright 2011 The Go Authors. 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.
4
5package packet
6
7import (
8	"bytes"
9	"encoding/base64"
10	"image/color"
11	"image/jpeg"
12	"testing"
13)
14
15func TestParseUserAttribute(t *testing.T) {
16	r := base64.NewDecoder(base64.StdEncoding, bytes.NewBufferString(userAttributePacket))
17	for i := 0; i < 2; i++ {
18		p, err := Read(r)
19		if err != nil {
20			t.Fatal(err)
21		}
22		uat := p.(*UserAttribute)
23		imgs := uat.ImageData()
24		if len(imgs) != 1 {
25			t.Errorf("Unexpected number of images in user attribute packet: %d", len(imgs))
26		}
27		if len(imgs[0]) != 3395 {
28			t.Errorf("Unexpected JPEG image size: %d", len(imgs[0]))
29		}
30		img, err := jpeg.Decode(bytes.NewBuffer(imgs[0]))
31		if err != nil {
32			t.Errorf("Error decoding JPEG image: %v", err)
33		}
34		// A pixel in my right eye.
35		pixel := color.NRGBAModel.Convert(img.At(56, 36))
36		ref := color.NRGBA{R: 157, G: 128, B: 124, A: 255}
37		if pixel != ref {
38			t.Errorf("Unexpected pixel color: %v", pixel)
39		}
40		w := bytes.NewBuffer(nil)
41		err = uat.Serialize(w)
42		if err != nil {
43			t.Errorf("Error writing user attribute: %v", err)
44		}
45		r = bytes.NewBuffer(w.Bytes())
46	}
47}
48
49const userAttributePacket = `
500cyWzJQBEAABAQAAAAAAAAAAAAAAAP/Y/+AAEEpGSUYAAQIAAAEAAQAA/9sAQwAFAwQEBAMFBAQE
51BQUFBgcMCAcHBwcPCgsJDBEPEhIRDxEQExYcFxMUGhUQERghGBocHR8fHxMXIiQiHiQcHh8e/9sA
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53Hh4eHh4eHh4e/8AAEQgAZABkAwEiAAIRAQMRAf/EAB8AAAEFAQEBAQEBAAAAAAAAAAABAgMEBQYH
54CAkKC//EALUQAAIBAwMCBAMFBQQEAAABfQECAwAEEQUSITFBBhNRYQcicRQygZGhCCNCscEVUtHw
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575ebn6Onq8fLz9PX29/j5+v/EAB8BAAMBAQEBAQEBAQEAAAAAAAABAgMEBQYHCAkKC//EALURAAIB
58AgQEAwQHBQQEAAECdwABAgMRBAUhMQYSQVEHYXETIjKBCBRCkaGxwQkjM1LwFWJy0QoWJDThJfEX
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110