80 lines
2.4 KiB
Go
80 lines
2.4 KiB
Go
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/*
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Copyright 2014 The Kubernetes Authors.
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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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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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*/
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package rest
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import (
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"net/url"
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"testing"
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"time"
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"k8s.io/client-go/util/flowcontrol"
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)
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func parse(raw string) *url.URL {
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theUrl, _ := url.Parse(raw)
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return theUrl
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}
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func TestURLBackoffFunctionalityCollisions(t *testing.T) {
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myBackoff := &URLBackoff{
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Backoff: flowcontrol.NewBackOff(1*time.Second, 60*time.Second),
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}
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// Add some noise and make sure backoff for a clean URL is zero.
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myBackoff.UpdateBackoff(parse("http://100.200.300.400:8080"), nil, 500)
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myBackoff.UpdateBackoff(parse("http://1.2.3.4:8080"), nil, 500)
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if myBackoff.CalculateBackoff(parse("http://1.2.3.4:100")) > 0 {
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t.Errorf("URLs are colliding in the backoff map!")
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}
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}
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// TestURLBackoffFunctionality generally tests the URLBackoff wrapper. We avoid duplicating tests from backoff and request.
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func TestURLBackoffFunctionality(t *testing.T) {
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myBackoff := &URLBackoff{
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Backoff: flowcontrol.NewBackOff(1*time.Second, 60*time.Second),
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}
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// Now test that backoff increases, then recovers.
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// 200 and 300 should both result in clearing the backoff.
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// all others like 429 should result in increased backoff.
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seconds := []int{0,
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1, 2, 4, 8, 0,
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1, 2}
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returnCodes := []int{
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429, 500, 501, 502, 300,
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500, 501, 502,
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}
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if len(seconds) != len(returnCodes) {
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t.Fatalf("responseCode to backoff arrays should be the same length... sanity check failed.")
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}
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for i, sec := range seconds {
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backoffSec := myBackoff.CalculateBackoff(parse("http://1.2.3.4:100"))
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if backoffSec < time.Duration(sec)*time.Second || backoffSec > time.Duration(sec+5)*time.Second {
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t.Errorf("Backoff out of range %v: %v %v", i, sec, backoffSec)
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}
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myBackoff.UpdateBackoff(parse("http://1.2.3.4:100/responseCodeForFuncTest"), nil, returnCodes[i])
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}
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if myBackoff.CalculateBackoff(parse("http://1.2.3.4:100")) == 0 {
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t.Errorf("The final return code %v should have resulted in a backoff ! ", returnCodes[7])
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}
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}
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