forked from vanadium-archive/go.v23
/
helpers.go
224 lines (206 loc) · 5.52 KB
/
helpers.go
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// Copyright 2016 The Vanadium 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 internal
import (
"bytes"
"crypto/ecdsa"
"crypto/elliptic"
"crypto/rand"
"encoding/gob"
"strings"
"testing"
"v.io/v23/security"
"v.io/v23/vom"
)
func vomEncode(b *testing.B, value interface{}) {
// Try encoding once to make sure it succeeds.
if _, err := vom.Encode(value); err != nil {
b.Fatal(err)
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
if _, err := vom.Encode(value); err != nil {
b.Fatal(err)
}
}
}
func vomDecode(b *testing.B, value interface{}, make func() interface{}) {
// Encode once to get the data, and decode once to make sure it succeeds.
data, err := vom.Encode(value)
if err != nil {
b.Fatal(err)
}
if err := vom.Decode(data, make()); err != nil {
b.Fatal(err)
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
if err := vom.Decode(data, make()); err != nil {
b.Fatal(err)
}
}
}
func vomEncodeMany(b *testing.B, value interface{}) {
var buf bytes.Buffer
enc := vom.NewEncoder(&buf)
// Encode once first to write the type and value.
if err := enc.Encode(value); err != nil {
b.Fatal(err)
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
buf.Reset()
if err := enc.Encode(value); err != nil {
b.Fatal(err)
}
}
}
func vomDecodeMany(b *testing.B, value interface{}, make func() interface{}) {
var buf bytes.Buffer
enc := vom.NewEncoder(&buf)
// Encode once first to write the type and value.
if err := enc.Encode(value); err != nil {
b.Fatal(err)
}
// Capture the offset, and encode again to write just the value.
valueOffset := int64(buf.Len())
if err := enc.Encode(value); err != nil {
b.Fatal(err)
}
// Decode twice to read the type and two values. We must read both values to
// ensure the decoder doesn't have any additional buffered data.
reader := bytes.NewReader(buf.Bytes())
dec := vom.NewDecoder(reader)
for i := 0; i < 2; i++ {
if err := dec.Decode(make()); err != nil {
b.Fatal(err)
}
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
reader.Seek(valueOffset, 0)
if err := dec.Decode(make()); err != nil {
b.Fatal(err)
}
}
}
func gobEncode(b *testing.B, value interface{}) {
// Try encoding once to make sure it succeeds.
var buf bytes.Buffer
if err := gob.NewEncoder(&buf).Encode(value); err != nil {
b.Fatal(err)
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
buf.Reset()
if err := gob.NewEncoder(&buf).Encode(value); err != nil {
b.Fatal(err)
}
}
}
func gobDecode(b *testing.B, value interface{}, make func() interface{}) {
// Encode once to get the data, and decode once to make sure it succeeds.
var buf bytes.Buffer
if err := gob.NewEncoder(&buf).Encode(value); err != nil {
b.Fatal(err)
}
reader := bytes.NewReader(buf.Bytes())
if err := gob.NewDecoder(reader).Decode(make()); err != nil {
b.Fatal(err)
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
reader.Seek(0, 0)
if err := gob.NewDecoder(reader).Decode(make()); err != nil {
b.Fatal(err)
}
}
}
func gobEncodeMany(b *testing.B, value interface{}) {
var buf bytes.Buffer
enc := gob.NewEncoder(&buf)
// Encode once first to write the type.
if err := enc.Encode(value); err != nil {
b.Fatal(err)
}
enc.Encode(value)
b.ResetTimer()
for i := 0; i < b.N; i++ {
buf.Reset()
if err := enc.Encode(value); err != nil {
b.Fatal(err)
}
}
}
func gobDecodeMany(b *testing.B, value interface{}, make func() interface{}) {
var buf bytes.Buffer
enc := gob.NewEncoder(&buf)
// Encode once first to write the type and value.
if err := enc.Encode(value); err != nil {
b.Fatal(err)
}
// Capture the offset, and encode again to write just the value.
valueOffset := int64(buf.Len())
if err := enc.Encode(value); err != nil {
b.Fatal(err)
}
// Decode twice to read the type and two values. We must read both values to
// ensure the decoder doesn't have any additional buffered data.
reader := bytes.NewReader(buf.Bytes())
dec := gob.NewDecoder(reader)
for i := 0; i < 2; i++ {
if err := dec.Decode(make()); err != nil {
b.Fatal(err)
}
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
reader.Seek(valueOffset, 0)
if err := dec.Decode(make()); err != nil {
b.Fatal(err)
}
}
}
func createString(length int) string {
return strings.Repeat("a", length)
}
func createByteList(length int) []byte {
return []byte(strings.Repeat("a", length))
}
func createList(length int) []int32 {
l := make([]int32, length)
for i := range l {
l[i] = int32(i)
}
return l
}
func createListAny(length int) []*vom.RawBytes {
l := make([]*vom.RawBytes, length)
for i := range l {
l[i] = vom.RawBytesOf(i)
}
return l
}
func newSigner() security.Signer {
key, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
if err != nil {
panic(err)
}
return security.NewInMemoryECDSASigner(key)
}
// createTypicalBlessings creates a blessings with certificate structures and
// caveats that are "common": a chain of 3 certificates for the user, with a
// third-party caveat used for revocation.
func createTypicalBlessings() security.Blessings {
var (
p1, _ = security.CreatePrincipal(newSigner(), nil, nil)
p2, _ = security.CreatePrincipal(newSigner(), nil, nil)
p3, _ = security.CreatePrincipal(newSigner(), nil, nil)
tpc, _ = security.NewPublicKeyCaveat(p2.PublicKey(), "some_location", security.ThirdPartyRequirements{}, security.UnconstrainedUse())
b1, _ = p1.BlessSelf("root")
b2, _ = p1.Bless(p2.PublicKey(), b1, "u", security.UnconstrainedUse())
b3, _ = p2.Bless(p3.PublicKey(), b2, "user", tpc)
)
return b3
}