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compress_test.go
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// Copyright 2015 Eryx <evorui at gmail dot com>, All rights reserved.
//
// 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 httpsrv
import (
"bytes"
"compress/gzip"
"fmt"
"testing"
"github.com/andybalholm/brotli"
)
var (
compressTestText = []byte(`<!DOCTYPE html>
<html>
<head>
<title>Error</title>
<style>
html { color-scheme: light dark; }
body { width: 35em; margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif; }
</style>
</head>
<body>
<h1>An error occurred.</h1>
<p>Sorry, the page you are looking for is currently unavailable.<br/>
Please try again later.</p>
<p>If you are the system administrator of this resource then you should check
the error log for details.</p>
<p><em>Faithfully yours, nginx.</em></p>
</body>
</html>`)
)
func Test_gzip(t *testing.T) {
var buf bytes.Buffer
for l := gzip.BestSpeed; l <= gzip.BestCompression; l++ {
buf.Reset()
w, _ := gzip.NewWriterLevel(&buf, l)
w.Write(compressTestText)
w.Flush()
w.Close()
t.Logf("gzip level %d ratio %f", l, float64(buf.Len())/float64(len(compressTestText)))
}
}
func Test_brotli(t *testing.T) {
var buf bytes.Buffer
for l := brotli.BestSpeed; l <= brotli.BestCompression; l++ {
buf.Reset()
w := brotli.NewWriterLevel(&buf, l)
w.Write(compressTestText)
w.Flush()
w.Close()
t.Logf("brotli level %d ratio %f", l, float64(buf.Len())/float64(len(compressTestText)))
}
}
func Benchmark_gzip_encoding(b *testing.B) {
for l := gzip.BestSpeed; l <= gzip.BestCompression; l++ {
b.Run(fmt.Sprintf("level_%d", l), func(b *testing.B) {
var (
buf bytes.Buffer
w, _ = gzip.NewWriterLevel(&buf, l)
)
defer w.Close()
for i := 0; i < b.N; i++ {
buf.Reset()
w.Reset(&buf)
w.Write(compressTestText)
w.Flush()
}
})
}
}
func Benchmark_brotli_encoding(b *testing.B) {
for l := brotli.BestSpeed; l <= brotli.BestCompression; l++ {
b.Run(fmt.Sprintf("level_%d", l), func(b *testing.B) {
var (
buf bytes.Buffer
w = brotli.NewWriterLevel(&buf, l)
)
defer w.Close()
for i := 0; i < b.N; i++ {
buf.Reset()
w.Reset(&buf)
w.Write(compressTestText)
w.Flush()
}
})
}
}