mirror of
https://github.com/prometheus/prometheus.git
synced 2024-11-18 03:24:05 -08:00
144 lines
3.8 KiB
Go
144 lines
3.8 KiB
Go
// Copyright 2016 The Prometheus 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 httputil
|
|
|
|
import (
|
|
"bytes"
|
|
"compress/gzip"
|
|
"compress/zlib"
|
|
"io/ioutil"
|
|
"net/http"
|
|
"net/http/httptest"
|
|
"testing"
|
|
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
var (
|
|
mux *http.ServeMux
|
|
server *httptest.Server
|
|
)
|
|
|
|
func setup() func() {
|
|
mux = http.NewServeMux()
|
|
server = httptest.NewServer(mux)
|
|
return func() {
|
|
server.Close()
|
|
}
|
|
}
|
|
|
|
func getCompressionHandlerFunc() CompressionHandler {
|
|
hf := func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(http.StatusOK)
|
|
w.Write([]byte("Hello World!"))
|
|
}
|
|
return CompressionHandler{
|
|
Handler: http.HandlerFunc(hf),
|
|
}
|
|
}
|
|
|
|
func TestCompressionHandler_PlainText(t *testing.T) {
|
|
tearDown := setup()
|
|
defer tearDown()
|
|
|
|
ch := getCompressionHandlerFunc()
|
|
mux.Handle("/foo_endpoint", ch)
|
|
|
|
client := &http.Client{
|
|
Transport: &http.Transport{
|
|
DisableCompression: true,
|
|
},
|
|
}
|
|
|
|
resp, err := client.Get(server.URL + "/foo_endpoint")
|
|
require.NoError(t, err, "client get failed with unexpected error")
|
|
defer resp.Body.Close()
|
|
contents, err := ioutil.ReadAll(resp.Body)
|
|
require.NoError(t, err, "unexpected error while creating the response body reader")
|
|
|
|
expected := "Hello World!"
|
|
actual := string(contents)
|
|
require.Equal(t, expected, actual, "expected response with content")
|
|
}
|
|
|
|
func TestCompressionHandler_Gzip(t *testing.T) {
|
|
tearDown := setup()
|
|
defer tearDown()
|
|
|
|
ch := getCompressionHandlerFunc()
|
|
mux.Handle("/foo_endpoint", ch)
|
|
|
|
client := &http.Client{
|
|
Transport: &http.Transport{
|
|
DisableCompression: true,
|
|
},
|
|
}
|
|
|
|
req, _ := http.NewRequest("GET", server.URL+"/foo_endpoint", nil)
|
|
req.Header.Set(acceptEncodingHeader, gzipEncoding)
|
|
|
|
resp, err := client.Do(req)
|
|
require.NoError(t, err, "client get failed with unexpected error")
|
|
defer resp.Body.Close()
|
|
|
|
actualHeader := resp.Header.Get(contentEncodingHeader)
|
|
require.Equal(t, gzipEncoding, actualHeader, "unexpected encoding header in response")
|
|
|
|
var buf bytes.Buffer
|
|
zr, err := gzip.NewReader(resp.Body)
|
|
require.NoError(t, err, "unexpected error while creating the response body reader")
|
|
|
|
_, err = buf.ReadFrom(zr)
|
|
require.NoError(t, err, "unexpected error while reading the response body")
|
|
|
|
actual := buf.String()
|
|
expected := "Hello World!"
|
|
require.Equal(t, expected, actual, "unexpected response content")
|
|
}
|
|
|
|
func TestCompressionHandler_Deflate(t *testing.T) {
|
|
tearDown := setup()
|
|
defer tearDown()
|
|
|
|
ch := getCompressionHandlerFunc()
|
|
mux.Handle("/foo_endpoint", ch)
|
|
|
|
client := &http.Client{
|
|
Transport: &http.Transport{
|
|
DisableCompression: true,
|
|
},
|
|
}
|
|
|
|
req, _ := http.NewRequest("GET", server.URL+"/foo_endpoint", nil)
|
|
req.Header.Set(acceptEncodingHeader, deflateEncoding)
|
|
|
|
resp, err := client.Do(req)
|
|
require.NoError(t, err, "client get failed with unexpected error")
|
|
defer resp.Body.Close()
|
|
|
|
actualHeader := resp.Header.Get(contentEncodingHeader)
|
|
require.Equal(t, deflateEncoding, actualHeader, "expected response with encoding header")
|
|
|
|
var buf bytes.Buffer
|
|
dr, err := zlib.NewReader(resp.Body)
|
|
require.NoError(t, err, "unexpected error while creating the response body reader")
|
|
|
|
_, err = buf.ReadFrom(dr)
|
|
require.NoError(t, err, "unexpected error while reading the response body")
|
|
|
|
actual := buf.String()
|
|
expected := "Hello World!"
|
|
require.Equal(t, expected, actual, "expected response with content")
|
|
}
|