mirror of https://github.com/minio/minio.git
84 lines
2.3 KiB
Go
84 lines
2.3 KiB
Go
/*
|
|
* Minio Cloud Storage, (C) 2016 Minio, Inc.
|
|
*
|
|
* 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 cmd
|
|
|
|
import (
|
|
"fmt"
|
|
"net/http"
|
|
"net/http/httptest"
|
|
"testing"
|
|
"time"
|
|
)
|
|
|
|
// This test sets globalMaxConn to 1 and starts 6 connections in
|
|
// parallel on a server with the rate limit handler configured. This
|
|
// should allow one request to execute at a time, and at most 4 to
|
|
// wait to execute and the 6th request should get a 429 status code
|
|
// error.
|
|
func TestRateLimitHandler(t *testing.T) {
|
|
// save the global Max connections
|
|
saveGlobalMaxConn := globalMaxConn
|
|
|
|
globalMaxConn = 1
|
|
testHandler := func(w http.ResponseWriter, r *http.Request) {
|
|
time.Sleep(100 * time.Millisecond)
|
|
fmt.Fprintln(w, "Hello client!")
|
|
}
|
|
rlh := setRateLimitHandler(http.HandlerFunc(testHandler))
|
|
ts := httptest.NewServer(rlh)
|
|
respCh := make(chan int)
|
|
startTime := time.Now()
|
|
for i := 0; i < 6; i++ {
|
|
go func(ch chan<- int) {
|
|
resp, err := http.Get(ts.URL)
|
|
if err != nil {
|
|
t.Errorf(
|
|
"Got error requesting test server - %v\n",
|
|
err,
|
|
)
|
|
}
|
|
respCh <- resp.StatusCode
|
|
}(respCh)
|
|
}
|
|
|
|
tooManyReqErrCount := 0
|
|
for i := 0; i < 6; i++ {
|
|
code := <-respCh
|
|
if code == 429 {
|
|
tooManyReqErrCount++
|
|
} else if code != 200 {
|
|
t.Errorf("Got non-200 resp code - %d\n", code)
|
|
}
|
|
}
|
|
duration := time.Since(startTime)
|
|
if duration < time.Duration(500*time.Millisecond) {
|
|
// as globalMaxConn is 1, only 1 request will execute
|
|
// at a time, and the five allowed requested will take
|
|
// at least 500 ms.
|
|
t.Errorf("Expected all requests to take at least 500ms, but it was done in %v\n",
|
|
duration)
|
|
}
|
|
if tooManyReqErrCount != 1 {
|
|
t.Errorf("Expected to get 1 error, but got %d",
|
|
tooManyReqErrCount)
|
|
}
|
|
ts.Close()
|
|
|
|
// restore the global Max connections
|
|
globalMaxConn = saveGlobalMaxConn
|
|
}
|