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  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. package packet
  5. import (
  6. "bytes"
  7. "encoding/base64"
  8. "image/color"
  9. "image/jpeg"
  10. "testing"
  11. )
  12. func TestParseUserAttribute(t *testing.T) {
  13. r := base64.NewDecoder(base64.StdEncoding, bytes.NewBufferString(userAttributePacket))
  14. for i := 0; i < 2; i++ {
  15. p, err := Read(r)
  16. if err != nil {
  17. t.Fatal(err)
  18. }
  19. uat := p.(*UserAttribute)
  20. imgs := uat.ImageData()
  21. if len(imgs) != 1 {
  22. t.Errorf("Unexpected number of images in user attribute packet: %d", len(imgs))
  23. }
  24. if len(imgs[0]) != 3395 {
  25. t.Errorf("Unexpected JPEG image size: %d", len(imgs[0]))
  26. }
  27. img, err := jpeg.Decode(bytes.NewBuffer(imgs[0]))
  28. if err != nil {
  29. t.Errorf("Error decoding JPEG image: %v", err)
  30. }
  31. // A pixel in my right eye.
  32. pixel := color.NRGBAModel.Convert(img.At(56, 36))
  33. ref := color.NRGBA{R: 157, G: 128, B: 124, A: 255}
  34. if pixel != ref {
  35. t.Errorf("Unexpected pixel color: %v", pixel)
  36. }
  37. w := bytes.NewBuffer(nil)
  38. err = uat.Serialize(w)
  39. if err != nil {
  40. t.Errorf("Error writing user attribute: %v", err)
  41. }
  42. r = bytes.NewBuffer(w.Bytes())
  43. }
  44. }
  45. const userAttributePacket = `
  46. 0cyWzJQBEAABAQAAAAAAAAAAAAAAAP/Y/+AAEEpGSUYAAQIAAAEAAQAA/9sAQwAFAwQEBAMFBAQE
  47. BQUFBgcMCAcHBwcPCgsJDBEPEhIRDxEQExYcFxMUGhUQERghGBocHR8fHxMXIiQiHiQcHh8e/9sA
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  49. Hh4eHh4eHh4e/8AAEQgAZABkAwEiAAIRAQMRAf/EAB8AAAEFAQEBAQEBAAAAAAAAAAABAgMEBQYH
  50. CAkKC//EALUQAAIBAwMCBAMFBQQEAAABfQECAwAEEQUSITFBBhNRYQcicRQygZGhCCNCscEVUtHw
  51. JDNicoIJChYXGBkaJSYnKCkqNDU2Nzg5OkNERUZHSElKU1RVVldYWVpjZGVmZ2hpanN0dXZ3eHl6
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  53. 5ebn6Onq8fLz9PX29/j5+v/EAB8BAAMBAQEBAQEBAQEAAAAAAAABAgMEBQYHCAkKC//EALURAAIB
  54. AgQEAwQHBQQEAAECdwABAgMRBAUhMQYSQVEHYXETIjKBCBRCkaGxwQkjM1LwFWJy0QoWJDThJfEX
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