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|
package types
import (
"bytes"
"strings"
"testing"
"crypto/ed25519"
)
// TestNamespaceString checks that the String() function prints the right
// format, and that the body is printed without a nil-pointer panic.
func TestNamespaceString(t *testing.T) {
wantPrefix := map[NamespaceFormat]string{
NamespaceFormatReserved: "Format(reserved)",
NamespaceFormatEd25519V1: "Format(ed25519_v1): &{Namespace",
NamespaceFormat(1<<16 - 1): "unknown Namespace: unknown NamespaceFormat: 65535",
}
tests := append(test_cases_namespace(t), testCaseSerialize{
description: "valid: unknown Namespace",
item: Namespace{
Format: NamespaceFormat(1<<16 - 1),
},
})
for _, table := range tests {
namespace, ok := table.item.(Namespace)
if !ok {
t.Fatalf("must cast to Namespace in test %q", table.description)
}
prefix, ok := wantPrefix[namespace.Format]
if !ok {
t.Fatalf("must have prefix for StFormat %v in test %q", namespace.Format, table.description)
}
if got, want := namespace.String(), prefix; !strings.HasPrefix(got, want) {
t.Errorf("got %q but wanted prefix %q in test %q", got, want, table.description)
}
}
}
func TestFingerprint(t *testing.T) {
for _, table := range []struct {
description string
namespace *Namespace
wantErr bool
wantFpr [NamespaceFingerprintSize]byte
}{
{
description: "invalid: no fingerprint for type",
namespace: &Namespace{
Format: NamespaceFormatReserved,
},
wantErr: true,
},
{
description: "valid: ed25519_v1",
namespace: mustInitNamespaceEd25519V1(t, 0xaf),
wantFpr: func() (ret [NamespaceFingerprintSize]byte) {
for i, _ := range ret {
ret[i] = 0xaf
}
return
}(),
},
} {
fpr, err := table.namespace.Fingerprint()
if got, want := err != nil, table.wantErr; got != want {
t.Errorf("got error %v but wanted %v in test %q: %v", got, want, table.description, err)
}
if err != nil {
continue
}
if got, want := *fpr, table.wantFpr; !bytes.Equal(got[:], want[:]) {
t.Errorf("got fpr %v but wanted %v in test %q", got, want, table.description)
}
}
}
func TestVerify(t *testing.T) {
var tests []testCaseNamespace
tests = append(tests, test_cases_verify(t)...)
tests = append(tests, test_cases_verify_ed25519v1(t)...)
for _, table := range tests {
err := table.namespace.Verify(table.msg, table.sig)
if got, want := err != nil, table.wantErr; got != want {
t.Errorf("got error=%v but wanted %v in test %q: %v", got, want, table.description, err)
}
}
}
func TestNewNamespaceEd25519V1(t *testing.T) {
size := 32 // verification key size
for _, table := range []struct {
description string
vk []byte
wantErr bool
}{
{
description: "invalid",
vk: make([]byte, size+1),
wantErr: true,
},
{
description: "valid",
vk: make([]byte, size),
},
} {
n, err := NewNamespaceEd25519V1(table.vk)
if got, want := err != nil, table.wantErr; got != want {
t.Errorf("got error %v but wanted %v in test %q: %v", got, want, table.description, err)
}
if err != nil {
continue
}
if got, want := n.Format, NamespaceFormatEd25519V1; got != want {
t.Errorf("got namespace format %v but wanted %v in test %q", got, want, table.description)
continue
}
if got, want := n.Ed25519V1.Namespace[:], table.vk; !bytes.Equal(got, want) {
t.Errorf("got namespace %X but wanted %X in test %q", got, want, table.description)
}
}
}
// testCaseNamespace is a common test case used for Namespace.Verify() tests
type testCaseNamespace struct {
description string
namespace *Namespace
msg, sig []byte
wantErr bool
}
// test_cases_verify returns basic namespace.Verify() tests
func test_cases_verify(t *testing.T) []testCaseNamespace {
return []testCaseNamespace{
{
description: "test_cases_verify: invalid: unsupported namespace",
namespace: &Namespace{Format: NamespaceFormatReserved},
msg: []byte("msg"),
sig: []byte("sig"),
wantErr: true,
},
}
}
// test_cases_verify_ed25519v1 returns ed25519_v1 Namespace.Verify() tests
func test_cases_verify_ed25519v1(t *testing.T) []testCaseNamespace {
testEd25519Sk := [64]byte{230, 122, 195, 152, 194, 195, 147, 153, 80, 120, 153, 79, 102, 27, 52, 187, 136, 218, 150, 234, 107, 9, 167, 4, 92, 21, 11, 113, 42, 29, 129, 69, 75, 60, 249, 150, 229, 93, 75, 32, 103, 126, 244, 37, 53, 182, 68, 82, 249, 109, 49, 94, 10, 19, 146, 244, 58, 191, 169, 107, 78, 37, 45, 210}
testEd25519Vk := [32]byte{75, 60, 249, 150, 229, 93, 75, 32, 103, 126, 244, 37, 53, 182, 68, 82, 249, 109, 49, 94, 10, 19, 146, 244, 58, 191, 169, 107, 78, 37, 45, 210}
return []testCaseNamespace{
{
description: "test_cases_verify_ed25519v1: invalid: sk signed message, but vk is not for sk",
namespace: &Namespace{
Format: NamespaceFormatEd25519V1,
Ed25519V1: &Ed25519V1{
Namespace: [32]byte{},
},
},
msg: []byte("message"),
sig: ed25519.Sign(ed25519.PrivateKey(testEd25519Sk[:]), []byte("message")),
wantErr: true,
},
{
description: "test_cases_verify_ed25519v1: invalid: vk is for sk, but sk did not sign message",
namespace: &Namespace{
Format: NamespaceFormatEd25519V1,
Ed25519V1: &Ed25519V1{
Namespace: testEd25519Vk,
},
},
msg: []byte("some message"),
sig: ed25519.Sign(ed25519.PrivateKey(testEd25519Sk[:]), []byte("another message")),
wantErr: true,
},
{
description: "test_cases_verify_ed25519v1: valid",
namespace: &Namespace{
Format: NamespaceFormatEd25519V1,
Ed25519V1: &Ed25519V1{
Namespace: testEd25519Vk,
},
},
msg: []byte("message"),
sig: ed25519.Sign(ed25519.PrivateKey(testEd25519Sk[:]), []byte("message")),
},
}
}
func mustInitNamespaceEd25519V1(t *testing.T, initByte byte) *Namespace {
t.Helper()
buf := make([]byte, 32)
for i := 0; i < len(buf); i++ {
buf[i] = initByte
}
ns, err := NewNamespaceEd25519V1(buf)
if err != nil {
t.Fatalf("must make Ed25519v1 namespace: %v", err)
}
return ns
}
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