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// Copyright (C) 2017. See AUTHORS.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package openssl
import (
"crypto/rand"
"crypto/sha1"
"io"
"testing"
)
func TestSHA1(t *testing.T) {
for i := 0; i < 100; i++ {
buf := make([]byte, 10*1024-i)
if _, err := io.ReadFull(rand.Reader, buf); err != nil {
t.Fatal(err)
}
expected := sha1.Sum(buf)
got, err := SHA1(buf)
if err != nil {
t.Fatal(err)
}
if expected != got {
t.Fatalf("exp:%x got:%x", expected, got)
}
}
}
func TestSHA1Writer(t *testing.T) {
ohash, err := NewSHA1Hash()
if err != nil {
t.Fatal(err)
}
hash := sha1.New()
for i := 0; i < 100; i++ {
if err := ohash.Reset(); err != nil {
t.Fatal(err)
}
hash.Reset()
buf := make([]byte, 10*1024-i)
if _, err := io.ReadFull(rand.Reader, buf); err != nil {
t.Fatal(err)
}
if _, err := ohash.Write(buf); err != nil {
t.Fatal(err)
}
if _, err := hash.Write(buf); err != nil {
t.Fatal(err)
}
var got, exp [20]byte
hash.Sum(exp[:0])
got, err := ohash.Sum()
if err != nil {
t.Fatal(err)
}
if got != exp {
t.Fatalf("exp:%x got:%x", exp, got)
}
}
}
type shafunc func([]byte)
func benchmarkSHA1(b *testing.B, length int64, fn shafunc) {
buf := make([]byte, length)
if _, err := io.ReadFull(rand.Reader, buf); err != nil {
b.Fatal(err)
}
b.SetBytes(length)
b.ResetTimer()
for i := 0; i < b.N; i++ {
fn(buf)
}
}
func BenchmarkSHA1Large_openssl(b *testing.B) {
benchmarkSHA1(b, 1024*1024, func(buf []byte) { SHA1(buf) })
}
func BenchmarkSHA1Large_stdlib(b *testing.B) {
benchmarkSHA1(b, 1024*1024, func(buf []byte) { sha1.Sum(buf) })
}
func BenchmarkSHA1Small_openssl(b *testing.B) {
benchmarkSHA1(b, 1, func(buf []byte) { SHA1(buf) })
}
func BenchmarkSHA1Small_stdlib(b *testing.B) {
benchmarkSHA1(b, 1, func(buf []byte) { sha1.Sum(buf) })
}
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