1 files changed, 0 insertions, 472 deletions
diff --git a/libgo/go/cmd/go/internal/note/note_test.go b/libgo/go/cmd/go/internal/note/note_test.go
deleted file mode 100644
index 729324647e7..00000000000
--- a/libgo/go/cmd/go/internal/note/note_test.go
+++ /dev/null
@@ -1,472 +0,0 @@
-// Copyright 2019 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 note
-
-import (
-	"crypto/ed25519"
-	"crypto/rand"
-	"errors"
-	"strings"
-	"testing"
-	"testing/iotest"
-)
-
-func TestNewVerifier(t *testing.T) {
-	vkey := "PeterNeumann+c74f20a3+ARpc2QcUPDhMQegwxbzhKqiBfsVkmqq/LDE4izWy10TW"
-	_, err := NewVerifier(vkey)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	// Check various manglings are not accepted.
-	badKey := func(k string) {
-		_, err := NewVerifier(k)
-		if err == nil {
-			t.Errorf("NewVerifier(%q) succeeded, should have failed", k)
-		}
-	}
-
-	b := []byte(vkey)
-	for i := 0; i <= len(b); i++ {
-		for j := i + 1; j <= len(b); j++ {
-			if i != 0 || j != len(b) {
-				badKey(string(b[i:j]))
-			}
-		}
-	}
-	for i := 0; i < len(b); i++ {
-		b[i]++
-		badKey(string(b))
-		b[i]--
-	}
-
-	badKey("PeterNeumann+cc469956+ARpc2QcUPDhMQegwxbzhKqiBfsVkmqq/LDE4izWy10TWBADKEY==") // wrong length key, with adjusted key hash
-	badKey("PeterNeumann+173116ae+ZRpc2QcUPDhMQegwxbzhKqiBfsVkmqq/LDE4izWy10TW")         // unknown algorithm, with adjusted key hash
-}
-
-func TestNewSigner(t *testing.T) {
-	skey := "PRIVATE+KEY+PeterNeumann+c74f20a3+AYEKFALVFGyNhPJEMzD1QIDr+Y7hfZx09iUvxdXHKDFz"
-	_, err := NewSigner(skey)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	// Check various manglings are not accepted.
-	b := []byte(skey)
-	for i := 0; i <= len(b); i++ {
-		for j := i + 1; j <= len(b); j++ {
-			if i == 0 && j == len(b) {
-				continue
-			}
-			_, err := NewSigner(string(b[i:j]))
-			if err == nil {
-				t.Errorf("NewSigner(%q) succeeded, should have failed", b[i:j])
-			}
-		}
-	}
-	for i := 0; i < len(b); i++ {
-		b[i]++
-		_, err := NewSigner(string(b))
-		if err == nil {
-			t.Errorf("NewSigner(%q) succeeded, should have failed", b)
-		}
-		b[i]--
-	}
-}
-
-func testSignerAndVerifier(t *testing.T, Name string, signer Signer, verifier Verifier) {
-	if name := signer.Name(); name != Name {
-		t.Errorf("signer.Name() = %q, want %q", name, Name)
-	}
-	if name := verifier.Name(); name != Name {
-		t.Errorf("verifier.Name() = %q, want %q", name, Name)
-	}
-	shash := signer.KeyHash()
-	vhash := verifier.KeyHash()
-	if shash != vhash {
-		t.Errorf("signer.KeyHash() = %#08x != verifier.KeyHash() = %#08x", shash, vhash)
-	}
-
-	msg := []byte("hi")
-	sig, err := signer.Sign(msg)
-	if err != nil {
-		t.Fatalf("signer.Sign: %v", err)
-	}
-	if !verifier.Verify(msg, sig) {
-		t.Fatalf("verifier.Verify failed on signature returned by signer.Sign")
-	}
-	sig[0]++
-	if verifier.Verify(msg, sig) {
-		t.Fatalf("verifier.Verify succceeded on corrupt signature")
-	}
-	sig[0]--
-	msg[0]++
-	if verifier.Verify(msg, sig) {
-		t.Fatalf("verifier.Verify succceeded on corrupt message")
-	}
-}
-
-func TestGenerateKey(t *testing.T) {
-	// Generate key pair, make sure it is all self-consistent.
-	const Name = "EnochRoot"
-
-	skey, vkey, err := GenerateKey(rand.Reader, Name)
-	if err != nil {
-		t.Fatalf("GenerateKey: %v", err)
-	}
-	signer, err := NewSigner(skey)
-	if err != nil {
-		t.Fatalf("NewSigner: %v", err)
-	}
-	verifier, err := NewVerifier(vkey)
-	if err != nil {
-		t.Fatalf("NewVerifier: %v", err)
-	}
-
-	testSignerAndVerifier(t, Name, signer, verifier)
-
-	// Check that GenerateKey returns error from rand reader.
-	_, _, err = GenerateKey(iotest.TimeoutReader(iotest.OneByteReader(rand.Reader)), Name)
-	if err == nil {
-		t.Fatalf("GenerateKey succeeded with error-returning rand reader")
-	}
-}
-
-func TestFromEd25519(t *testing.T) {
-	const Name = "EnochRoot"
-
-	pub, priv, err := ed25519.GenerateKey(rand.Reader)
-	if err != nil {
-		t.Fatalf("GenerateKey: %v", err)
-	}
-	signer, err := newSignerFromEd25519Seed(Name, priv.Seed())
-	if err != nil {
-		t.Fatalf("newSignerFromEd25519Seed: %v", err)
-	}
-	vkey, err := NewEd25519VerifierKey(Name, pub)
-	if err != nil {
-		t.Fatalf("NewEd25519VerifierKey: %v", err)
-	}
-	verifier, err := NewVerifier(vkey)
-	if err != nil {
-		t.Fatalf("NewVerifier: %v", err)
-	}
-
-	testSignerAndVerifier(t, Name, signer, verifier)
-
-	// Check that wrong key sizes return errors.
-	_, err = NewEd25519VerifierKey(Name, pub[:len(pub)-1])
-	if err == nil {
-		t.Errorf("NewEd25519VerifierKey succeeded with a seed of the wrong size")
-	}
-}
-
-// newSignerFromEd25519Seed constructs a new signer from a verifier name and a
-// crypto/ed25519 private key seed.
-func newSignerFromEd25519Seed(name string, seed []byte) (Signer, error) {
-	if len(seed) != ed25519.SeedSize {
-		return nil, errors.New("invalid seed size")
-	}
-	priv := ed25519.NewKeyFromSeed(seed)
-	pub := priv[32:]
-
-	pubkey := append([]byte{algEd25519}, pub...)
-	hash := keyHash(name, pubkey)
-
-	s := &signer{
-		name: name,
-		hash: uint32(hash),
-		sign: func(msg []byte) ([]byte, error) {
-			return ed25519.Sign(priv, msg), nil
-		},
-	}
-	return s, nil
-}
-
-func TestSign(t *testing.T) {
-	skey := "PRIVATE+KEY+PeterNeumann+c74f20a3+AYEKFALVFGyNhPJEMzD1QIDr+Y7hfZx09iUvxdXHKDFz"
-	text := "If you think cryptography is the answer to your problem,\n" +
-		"then you don't know what your problem is.\n"
-
-	signer, err := NewSigner(skey)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	msg, err := Sign(&Note{Text: text}, signer)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	want := `If you think cryptography is the answer to your problem,
-then you don't know what your problem is.
-
-— PeterNeumann x08go/ZJkuBS9UG/SffcvIAQxVBtiFupLLr8pAcElZInNIuGUgYN1FFYC2pZSNXgKvqfqdngotpRZb6KE6RyyBwJnAM=
-`
-	if string(msg) != want {
-		t.Errorf("Sign: wrong output\nhave:\n%s\nwant:\n%s", msg, want)
-	}
-
-	// Check that existing signature is replaced by new one.
-	msg, err = Sign(&Note{Text: text, Sigs: []Signature{{Name: "PeterNeumann", Hash: 0xc74f20a3, Base64: "BADSIGN="}}}, signer)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if string(msg) != want {
-		t.Errorf("Sign replacing signature: wrong output\nhave:\n%s\nwant:\n%s", msg, want)
-	}
-
-	// Check various bad inputs.
-	_, err = Sign(&Note{Text: "abc"}, signer)
-	if err == nil || err.Error() != "malformed note" {
-		t.Fatalf("Sign with short text: %v, want malformed note error", err)
-	}
-
-	_, err = Sign(&Note{Text: text, Sigs: []Signature{{Name: "a+b", Base64: "ABCD"}}})
-	if err == nil || err.Error() != "malformed note" {
-		t.Fatalf("Sign with bad name: %v, want malformed note error", err)
-	}
-
-	_, err = Sign(&Note{Text: text, Sigs: []Signature{{Name: "PeterNeumann", Hash: 0xc74f20a3, Base64: "BADHASH="}}})
-	if err == nil || err.Error() != "malformed note" {
-		t.Fatalf("Sign with bad pre-filled signature: %v, want malformed note error", err)
-	}
-
-	_, err = Sign(&Note{Text: text}, &badSigner{signer})
-	if err == nil || err.Error() != "invalid signer" {
-		t.Fatalf("Sign with bad signer: %v, want invalid signer error", err)
-	}
-
-	_, err = Sign(&Note{Text: text}, &errSigner{signer})
-	if err != errSurprise {
-		t.Fatalf("Sign with failing signer: %v, want errSurprise", err)
-	}
-}
-
-func TestVerifierList(t *testing.T) {
-	peterKey := "PeterNeumann+c74f20a3+ARpc2QcUPDhMQegwxbzhKqiBfsVkmqq/LDE4izWy10TW"
-	peterVerifier, err := NewVerifier(peterKey)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	enochKey := "EnochRoot+af0cfe78+ATtqJ7zOtqQtYqOo0CpvDXNlMhV3HeJDpjrASKGLWdop"
-	enochVerifier, err := NewVerifier(enochKey)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	list := VerifierList(peterVerifier, enochVerifier, enochVerifier)
-	v, err := list.Verifier("PeterNeumann", 0xc74f20a3)
-	if v != peterVerifier || err != nil {
-		t.Fatalf("list.Verifier(peter) = %v, %v, want %v, nil", v, err, peterVerifier)
-	}
-	v, err = list.Verifier("PeterNeumann", 0xc74f20a4)
-	if v != nil || err == nil || err.Error() != "unknown key PeterNeumann+c74f20a4" {
-		t.Fatalf("list.Verifier(peter bad hash) = %v, %v, want nil, unknown key error", v, err)
-	}
-
-	v, err = list.Verifier("PeterNeuman", 0xc74f20a3)
-	if v != nil || err == nil || err.Error() != "unknown key PeterNeuman+c74f20a3" {
-		t.Fatalf("list.Verifier(peter bad name) = %v, %v, want nil, unknown key error", v, err)
-	}
-	v, err = list.Verifier("EnochRoot", 0xaf0cfe78)
-	if v != nil || err == nil || err.Error() != "ambiguous key EnochRoot+af0cfe78" {
-		t.Fatalf("list.Verifier(enoch) = %v, %v, want nil, ambiguous key error", v, err)
-	}
-}
-
-type badSigner struct {
-	Signer
-}
-
-func (b *badSigner) Name() string {
-	return "bad name"
-}
-
-var errSurprise = errors.New("surprise!")
-
-type errSigner struct {
-	Signer
-}
-
-func (e *errSigner) Sign([]byte) ([]byte, error) {
-	return nil, errSurprise
-}
-
-func TestOpen(t *testing.T) {
-	peterKey := "PeterNeumann+c74f20a3+ARpc2QcUPDhMQegwxbzhKqiBfsVkmqq/LDE4izWy10TW"
-	peterVerifier, err := NewVerifier(peterKey)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	enochKey := "EnochRoot+af0cfe78+ATtqJ7zOtqQtYqOo0CpvDXNlMhV3HeJDpjrASKGLWdop"
-	enochVerifier, err := NewVerifier(enochKey)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	text := `If you think cryptography is the answer to your problem,
-then you don't know what your problem is.
-`
-	peterSig := "— PeterNeumann x08go/ZJkuBS9UG/SffcvIAQxVBtiFupLLr8pAcElZInNIuGUgYN1FFYC2pZSNXgKvqfqdngotpRZb6KE6RyyBwJnAM=\n"
-	enochSig := "— EnochRoot rwz+eBzmZa0SO3NbfRGzPCpDckykFXSdeX+MNtCOXm2/5n2tiOHp+vAF1aGrQ5ovTG01oOTGwnWLox33WWd1RvMc+QQ=\n"
-
-	peter := Signature{"PeterNeumann", 0xc74f20a3, "x08go/ZJkuBS9UG/SffcvIAQxVBtiFupLLr8pAcElZInNIuGUgYN1FFYC2pZSNXgKvqfqdngotpRZb6KE6RyyBwJnAM="}
-	enoch := Signature{"EnochRoot", 0xaf0cfe78, "rwz+eBzmZa0SO3NbfRGzPCpDckykFXSdeX+MNtCOXm2/5n2tiOHp+vAF1aGrQ5ovTG01oOTGwnWLox33WWd1RvMc+QQ="}
-
-	// Check one signature verified, one not.
-	n, err := Open([]byte(text+"\n"+peterSig+enochSig), VerifierList(peterVerifier))
-	if err != nil {
-		t.Fatal(err)
-	}
-	if n.Text != text {
-		t.Errorf("n.Text = %q, want %q", n.Text, text)
-	}
-	if len(n.Sigs) != 1 || n.Sigs[0] != peter {
-		t.Errorf("n.Sigs:\nhave %v\nwant %v", n.Sigs, []Signature{peter})
-	}
-	if len(n.UnverifiedSigs) != 1 || n.UnverifiedSigs[0] != enoch {
-		t.Errorf("n.UnverifiedSigs:\nhave %v\nwant %v", n.Sigs, []Signature{peter})
-	}
-
-	// Check both verified.
-	n, err = Open([]byte(text+"\n"+peterSig+enochSig), VerifierList(peterVerifier, enochVerifier))
-	if err != nil {
-		t.Fatal(err)
-	}
-	if len(n.Sigs) != 2 || n.Sigs[0] != peter || n.Sigs[1] != enoch {
-		t.Errorf("n.Sigs:\nhave %v\nwant %v", n.Sigs, []Signature{peter, enoch})
-	}
-	if len(n.UnverifiedSigs) != 0 {
-		t.Errorf("n.UnverifiedSigs:\nhave %v\nwant %v", n.Sigs, []Signature{})
-	}
-
-	// Check both unverified.
-	n, err = Open([]byte(text+"\n"+peterSig+enochSig), VerifierList())
-	if n != nil || err == nil {
-		t.Fatalf("Open unverified = %v, %v, want nil, error", n, err)
-	}
-	e, ok := err.(*UnverifiedNoteError)
-	if !ok {
-		t.Fatalf("Open unverified: err is %T, want *UnverifiedNoteError", err)
-	}
-	if err.Error() != "note has no verifiable signatures" {
-		t.Fatalf("Open unverified: err.Error() = %q, want %q", err.Error(), "note has no verifiable signatures")
-	}
-
-	n = e.Note
-	if n == nil {
-		t.Fatalf("Open unverified: missing note in UnverifiedNoteError")
-	}
-	if len(n.Sigs) != 0 {
-		t.Errorf("n.Sigs:\nhave %v\nwant %v", n.Sigs, []Signature{})
-	}
-	if len(n.UnverifiedSigs) != 2 || n.UnverifiedSigs[0] != peter || n.UnverifiedSigs[1] != enoch {
-		t.Errorf("n.UnverifiedSigs:\nhave %v\nwant %v", n.Sigs, []Signature{peter, enoch})
-	}
-
-	// Check duplicated verifier.
-	_, err = Open([]byte(text+"\n"+enochSig), VerifierList(enochVerifier, peterVerifier, enochVerifier))
-	if err == nil || err.Error() != "ambiguous key EnochRoot+af0cfe78" {
-		t.Fatalf("Open with duplicated verifier: err=%v, want ambiguous key", err)
-	}
-
-	// Check unused duplicated verifier.
-	_, err = Open([]byte(text+"\n"+peterSig), VerifierList(enochVerifier, peterVerifier, enochVerifier))
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	// Check too many signatures.
-	n, err = Open([]byte(text+"\n"+strings.Repeat(peterSig, 101)), VerifierList(peterVerifier))
-	if n != nil || err == nil || err.Error() != "malformed note" {
-		t.Fatalf("Open too many verified signatures = %v, %v, want nil, malformed note error", n, err)
-	}
-	n, err = Open([]byte(text+"\n"+strings.Repeat(peterSig, 101)), VerifierList())
-	if n != nil || err == nil || err.Error() != "malformed note" {
-		t.Fatalf("Open too many verified signatures = %v, %v, want nil, malformed note error", n, err)
-	}
-
-	// Invalid signature.
-	n, err = Open([]byte(text+"\n"+peterSig[:60]+"ABCD"+peterSig[60:]), VerifierList(peterVerifier))
-	if n != nil || err == nil || err.Error() != "invalid signature for key PeterNeumann+c74f20a3" {
-		t.Fatalf("Open too many verified signatures = %v, %v, want nil, invalid signature error", n, err)
-	}
-
-	// Duplicated verified and unverified signatures.
-	enochABCD := Signature{"EnochRoot", 0xaf0cfe78, "rwz+eBzmZa0SO3NbfRGzPCpDckykFXSdeX+MNtCOXm2/5n" + "ABCD" + "2tiOHp+vAF1aGrQ5ovTG01oOTGwnWLox33WWd1RvMc+QQ="}
-	n, err = Open([]byte(text+"\n"+peterSig+peterSig+enochSig+enochSig+enochSig[:60]+"ABCD"+enochSig[60:]), VerifierList(peterVerifier))
-	if err != nil {
-		t.Fatal(err)
-	}
-	if len(n.Sigs) != 1 || n.Sigs[0] != peter {
-		t.Errorf("n.Sigs:\nhave %v\nwant %v", n.Sigs, []Signature{peter})
-	}
-	if len(n.UnverifiedSigs) != 2 || n.UnverifiedSigs[0] != enoch || n.UnverifiedSigs[1] != enochABCD {
-		t.Errorf("n.UnverifiedSigs:\nhave %v\nwant %v", n.UnverifiedSigs, []Signature{enoch, enochABCD})
-	}
-
-	// Invalid encoded message syntax.
-	badMsgs := []string{
-		text,
-		text + "\n",
-		text + "\n" + peterSig[:len(peterSig)-1],
-		"\x01" + text + "\n" + peterSig,
-		"\xff" + text + "\n" + peterSig,
-		text + "\n" + "— Bad Name x08go/ZJkuBS9UG/SffcvIAQxVBtiFupLLr8pAcElZInNIuGUgYN1FFYC2pZSNXgKvqfqdngotpRZb6KE6RyyBwJnAM=",
-		text + "\n" + peterSig + "Unexpected line.\n",
-	}
-	for _, msg := range badMsgs {
-		n, err := Open([]byte(msg), VerifierList(peterVerifier))
-		if n != nil || err == nil || err.Error() != "malformed note" {
-			t.Fatalf("Open bad msg = %v, %v, want nil, malformed note error\nmsg:\n%s", n, err, msg)
-		}
-	}
-}
-
-func BenchmarkOpen(b *testing.B) {
-	vkey := "PeterNeumann+c74f20a3+ARpc2QcUPDhMQegwxbzhKqiBfsVkmqq/LDE4izWy10TW"
-	msg := []byte("If you think cryptography is the answer to your problem,\n" +
-		"then you don't know what your problem is.\n" +
-		"\n" +
-		"— PeterNeumann x08go/ZJkuBS9UG/SffcvIAQxVBtiFupLLr8pAcElZInNIuGUgYN1FFYC2pZSNXgKvqfqdngotpRZb6KE6RyyBwJnAM=\n")
-
-	verifier, err := NewVerifier(vkey)
-	if err != nil {
-		b.Fatal(err)
-	}
-	verifiers := VerifierList(verifier)
-	verifiers0 := VerifierList()
-
-	// Try with 0 signatures and 1 signature so we can tell how much each signature adds.
-
-	b.Run("Sig0", func(b *testing.B) {
-		for i := 0; i < b.N; i++ {
-			_, err := Open(msg, verifiers0)
-			e, ok := err.(*UnverifiedNoteError)
-			if !ok {
-				b.Fatal("expected UnverifiedNoteError")
-			}
-			n := e.Note
-			if len(n.Sigs) != 0 || len(n.UnverifiedSigs) != 1 {
-				b.Fatal("wrong signature count")
-			}
-		}
-	})
-
-	b.Run("Sig1", func(b *testing.B) {
-		for i := 0; i < b.N; i++ {
-			n, err := Open(msg, verifiers)
-			if err != nil {
-				b.Fatal(err)
-			}
-			if len(n.Sigs) != 1 || len(n.UnverifiedSigs) != 0 {
-				b.Fatal("wrong signature count")
-			}
-		}
-	})
-}