57 lines
1.6 KiB
Go
57 lines
1.6 KiB
Go
/*
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Copyright 2019 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 service
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import (
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e2elog "k8s.io/kubernetes/test/e2e/framework/log"
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)
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// affinityTracker tracks the destination of a request for the affinity tests.
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type affinityTracker struct {
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hostTrace []string
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}
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// Record the response going to a given host.
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func (at *affinityTracker) recordHost(host string) {
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at.hostTrace = append(at.hostTrace, host)
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e2elog.Logf("Received response from host: %s", host)
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}
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// Check that we got a constant count requests going to the same host.
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func (at *affinityTracker) checkHostTrace(count int) (fulfilled, affinityHolds bool) {
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fulfilled = (len(at.hostTrace) >= count)
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if len(at.hostTrace) == 0 {
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return fulfilled, true
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}
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last := at.hostTrace[0:]
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if len(at.hostTrace)-count >= 0 {
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last = at.hostTrace[len(at.hostTrace)-count:]
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}
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host := at.hostTrace[len(at.hostTrace)-1]
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for _, h := range last {
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if h != host {
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return fulfilled, false
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}
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}
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return fulfilled, true
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}
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func checkAffinityFailed(tracker affinityTracker, err string) {
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e2elog.Logf("%v", tracker.hostTrace)
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e2elog.Failf(err)
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}
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