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// Copyright 2010 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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func TestDecodeEncode(t *testing.T) {
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buf := bytes.NewBuffer([]byte(armorExample1))
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result, err := Decode(buf)
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expectedType := "PGP SIGNATURE"
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if result.Type != expectedType {
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t.Errorf("result.Type: got:%s want:%s", result.Type, expectedType)
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if len(result.Header) != 1 {
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t.Errorf("len(result.Header): got:%d want:1", len(result.Header))
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v, ok := result.Header["Version"]
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if !ok || v != "GnuPG v1.4.10 (GNU/Linux)" {
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t.Errorf("result.Header: got:%#v", result.Header)
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contents, err := ioutil.ReadAll(result.Body)
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if adler32.Checksum(contents) != 0x27b144be {
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t.Errorf("contents: got: %x", contents)
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buf = bytes.NewBuffer(nil)
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w, err := Encode(buf, result.Type, result.Header)
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_, err = w.Write(contents)
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if !bytes.Equal(buf.Bytes(), []byte(armorExample1)) {
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t.Errorf("got: %s\nwant: %s", string(buf.Bytes()), armorExample1)
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func TestLongHeader(t *testing.T) {
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buf := bytes.NewBuffer([]byte(armorLongLine))
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result, err := Decode(buf)
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value, ok := result.Header["Version"]
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t.Errorf("missing Version header")
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if value != longValueExpected {
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t.Errorf("got: %s want: %s", value, longValueExpected)
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const armorExample1 = `-----BEGIN PGP SIGNATURE-----
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Version: GnuPG v1.4.10 (GNU/Linux)
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iJwEAAECAAYFAk1Fv/0ACgkQo01+GMIMMbsYTwQAiAw+QAaNfY6WBdplZ/uMAccm
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4g+81QPmTSGHnetSb6WBiY13kVzK4HQiZH8JSkmmroMLuGeJwsRTEL4wbjRyUKEt
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p1xwUZDECs234F1xiG5enc5SGlRtP7foLBz9lOsjx+LEcA4sTl5/2eZR9zyFZqWW
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-----END PGP SIGNATURE-----`
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const armorLongLine = `-----BEGIN PGP SIGNATURE-----
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Version: 0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz
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iQEcBAABAgAGBQJMtFESAAoJEKsQXJGvOPsVj40H/1WW6jaMXv4BW+1ueDSMDwM8
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kx1fLOXbVM5/Kn5LStZNt1jWWnpxdz7eq3uiqeCQjmqUoRde3YbB2EMnnwRbAhpp
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cacnAvy9ZQ78OTxUdNW1mhX5bS6q1MTEJnl+DcyigD70HG/yNNQD7sOPMdYQw0TA
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byQBwmLwmTsuZsrYqB68QyLHI+DUugn+kX6Hd2WDB62DKa2suoIUIHQQCd/ofwB3
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WfCYInXQKKOSxu2YOg2Eb4kLNhSMc1i9uKUWAH+sdgJh7NBgdoE4MaNtBFkHXRvv
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okWuf3+xA9ksp1npSY/mDvgHijmjvtpRDe6iUeqfCn8N9u9CBg8geANgaG8+QA4=
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-----END PGP SIGNATURE-----`
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const longValueExpected = "0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz"