// Copyright 2011 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package packet import ( "bytes" "encoding/base64" "image/color" "image/jpeg" "testing" ) func TestParseUserAttribute(t *testing.T) { r := base64.NewDecoder(base64.StdEncoding, bytes.NewBufferString(userAttributePacket)) for i := 0; i < 2; i++ { p, err := Read(r) if err != nil { t.Fatal(err) } uat := p.(*UserAttribute) imgs := uat.ImageData() if len(imgs) != 1 { t.Errorf("Unexpected number of images in user attribute packet: %d", len(imgs)) } if len(imgs[0]) != 3395 { t.Errorf("Unexpected JPEG image size: %d", len(imgs[0])) } img, err := jpeg.Decode(bytes.NewBuffer(imgs[0])) if err != nil { t.Errorf("Error decoding JPEG image: %v", err) } // A pixel in my right eye. pixel := color.NRGBAModel.Convert(img.At(56, 36)) ref := color.NRGBA{R: 157, G: 128, B: 124, A: 255} if pixel != ref { t.Errorf("Unexpected pixel color: %v", pixel) } w := bytes.NewBuffer(nil) err = uat.Serialize(w) if err != nil { t.Errorf("Error writing user attribute: %v", err) } r = bytes.NewBuffer(w.Bytes()) } } const userAttributePacket = ` 0cyWzJQBEAABAQAAAAAAAAAAAAAAAP/Y/+AAEEpGSUYAAQIAAAEAAQAA/9sAQwAFAwQEBAMFBAQE BQUFBgcMCAcHBwcPCgsJDBEPEhIRDxEQExYcFxMUGhUQERghGBocHR8fHxMXIiQiHiQcHh8e/9sA QwEFBQUHBgcOCAgOHhQRFB4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4e Hh4eHh4eHh4e/8AAEQgAZABkAwEiAAIRAQMRAf/EAB8AAAEFAQEBAQEBAAAAAAAAAAABAgMEBQYH CAkKC//EALUQAAIBAwMCBAMFBQQEAAABfQECAwAEEQUSITFBBhNRYQcicRQygZGhCCNCscEVUtHw JDNicoIJChYXGBkaJSYnKCkqNDU2Nzg5OkNERUZHSElKU1RVVldYWVpjZGVmZ2hpanN0dXZ3eHl6 g4SFhoeIiYqSk5SVlpeYmZqio6Slpqeoqaqys7S1tre4ubrCw8TFxsfIycrS09TV1tfY2drh4uPk 5ebn6Onq8fLz9PX29/j5+v/EAB8BAAMBAQEBAQEBAQEAAAAAAAABAgMEBQYHCAkKC//EALURAAIB AgQEAwQHBQQEAAECdwABAgMRBAUhMQYSQVEHYXETIjKBCBRCkaGxwQkjM1LwFWJy0QoWJDThJfEX GBkaJicoKSo1Njc4OTpDREVGR0hJSlNUVVZXWFlaY2RlZmdoaWpzdHV2d3h5eoKDhIWGh4iJipKT lJWWl5iZmqKjpKWmp6ipqrKztLW2t7i5usLDxMXGx8jJytLT1NXW19jZ2uLj5OXm5+jp6vLz9PX2 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