9f4bfeb056
This change set implements tunable concurrent active clients throttling.
56 lines
1.5 KiB
Go
56 lines
1.5 KiB
Go
/*
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* Copyright (c) 2013, 2014 Conformal Systems LLC <info@conformal.com>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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package main
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import (
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"net/http"
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"net/http/httptest"
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"reflect"
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"testing"
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"time"
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)
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func TestThrottle(t *testing.T) {
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const threshold = 1
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srv := httptest.NewServer(throttledFn(threshold,
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func(w http.ResponseWriter, r *http.Request) {
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time.Sleep(20 * time.Millisecond)
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}),
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)
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codes := make(chan int, 2)
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for i := 0; i < cap(codes); i++ {
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go func() {
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res, err := http.Get(srv.URL)
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if err != nil {
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t.Fatal(err)
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}
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codes <- res.StatusCode
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}()
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}
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got := make(map[int]int, cap(codes))
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for i := 0; i < cap(codes); i++ {
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got[<-codes]++
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}
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want := map[int]int{200: 1, 429: 1}
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if !reflect.DeepEqual(want, got) {
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t.Fatalf("status codes: want: %v, got: %v", want, got)
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}
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}
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