mirror of
https://github.com/kubernetes-sigs/kind.git
synced 2025-12-01 07:26:05 +07:00
83 lines
1.9 KiB
Go
83 lines
1.9 KiB
Go
//go:build !nointegration
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// +build !nointegration
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/*
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Copyright 2020 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 docker
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import (
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"fmt"
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"regexp"
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"testing"
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"sigs.k8s.io/kind/pkg/errors"
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"sigs.k8s.io/kind/pkg/exec"
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"sigs.k8s.io/kind/pkg/internal/integration"
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)
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func TestIntegrationEnsureNetworkConcurrent(t *testing.T) {
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integration.MaybeSkip(t)
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testNetworkName := "integration-test-ensure-kind-network"
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// cleanup
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cleanup := func() {
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ids, _ := networksWithName(testNetworkName)
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if len(ids) > 0 {
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_ = deleteNetworks(ids...)
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}
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}
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cleanup()
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defer cleanup()
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// this is more than enough to trigger race conditions
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networkConcurrency := 10
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// Create multiple networks concurrently
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errCh := make(chan error, networkConcurrency)
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for i := 0; i < networkConcurrency; i++ {
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go func() {
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errCh <- ensureNetwork(testNetworkName)
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}()
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}
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for i := 0; i < networkConcurrency; i++ {
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if err := <-errCh; err != nil {
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t.Errorf("error creating network: %v", err)
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rerr := exec.RunErrorForError(err)
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if rerr != nil {
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t.Errorf("%q", rerr.Output)
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}
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t.Errorf("%+v", errors.StackTrace(err))
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}
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}
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cmd := exec.Command(
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"docker", "network", "ls",
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fmt.Sprintf("--filter=name=^%s$", regexp.QuoteMeta(testNetworkName)),
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"--format={{.Name}}",
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)
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lines, err := exec.OutputLines(cmd)
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if err != nil {
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t.Errorf("obtaining the docker networks")
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}
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if len(lines) != 1 {
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t.Errorf("wrong number of networks created: %d", len(lines))
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}
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}
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