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644d55475d
Also move the non crypto hash funcs into this new package. This is much faster than e.g. MD5, especially for larger inputs: ``` BenchmarkXxHash/xxHash_43-10 9917955 112.2 ns/op 56 B/op 4 allocs/op BenchmarkXxHash/mdb5_43-10 6017239 204.1 ns/op 96 B/op 3 allocs/op BenchmarkXxHash/fnv32a_43-10 14407333 82.30 ns/op 16 B/op 1 allocs/op BenchmarkXxHash/xxHash_4300-10 2916892 409.7 ns/op 56 B/op 4 allocs/op BenchmarkXxHash/mdb5_4300-10 159748 7491 ns/op 4912 B/op 3 allocs/op BenchmarkXxHash/fnv32a_4300-10 218210 5510 ns/op 16 B/op 1 allocs/op ``` Fixes #12635
84 lines
2.1 KiB
Go
84 lines
2.1 KiB
Go
// Copyright 2024 The Hugo Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package hash provides non-cryptographic hash functions for template use.
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package hash
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import (
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"crypto/md5"
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"encoding/hex"
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"fmt"
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"strings"
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"testing"
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qt "github.com/frankban/quicktest"
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"github.com/spf13/cast"
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)
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func TestXxHash(t *testing.T) {
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t.Parallel()
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c := qt.New(t)
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ns := New()
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h, err := ns.XxHash("The quick brown fox jumps over the lazy dog")
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c.Assert(err, qt.IsNil)
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// Facit: https://asecuritysite.com/encryption/xxhash?val=The%20quick%20brown%20fox%20jumps%20over%20the%20lazy%20dog
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c.Assert(h, qt.Equals, "0b242d361fda71bc")
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}
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func BenchmarkXxHash(b *testing.B) {
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const inputSmall = "The quick brown fox jumps over the lazy dog"
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inputLarge := strings.Repeat(inputSmall, 100)
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runBench := func(name, input string, b *testing.B, fn func(v any)) {
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b.Run(fmt.Sprintf("%s_%d", name, len(input)), func(b *testing.B) {
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for i := 0; i < b.N; i++ {
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fn(input)
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}
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})
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}
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ns := New()
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fnXxHash := func(v any) {
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_, err := ns.XxHash(v)
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if err != nil {
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panic(err)
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}
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}
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fnFNv32a := func(v any) {
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_, err := ns.FNV32a(v)
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if err != nil {
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panic(err)
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}
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}
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// Copied from the crypto tpl/crypto package,
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// just to have something to compare the above with.
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fnMD5 := func(v any) {
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conv, err := cast.ToStringE(v)
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if err != nil {
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panic(err)
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}
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hash := md5.Sum([]byte(conv))
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_ = hex.EncodeToString(hash[:])
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}
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for _, input := range []string{inputSmall, inputLarge} {
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runBench("xxHash", input, b, fnXxHash)
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runBench("mdb5", input, b, fnMD5)
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runBench("fnv32a", input, b, fnFNv32a)
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}
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}
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