kubernetes util_test 源码
kubernetes util_test 代码
文件路径：/pkg/kubelet/util/util_test.go
/*
Copyright 2020 The Kubernetes Authors.
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 util
import (
"testing"
"github.com/stretchr/testify/assert"
)
func TestGetNodenameForKernel(t *testing.T) {
testcases := []struct {
description string
hostname string
hostDomain string
setHostnameAsFQDN bool
expectedHostname string
expectError bool
}{{
description: "no hostDomain, setHostnameAsFQDN false",
hostname: "test.pod.hostname",
hostDomain: "",
setHostnameAsFQDN: false,
expectedHostname: "test.pod.hostname",
expectError: false,
}, {
description: "no hostDomain, setHostnameAsFQDN true",
hostname: "test.pod.hostname",
hostDomain: "",
setHostnameAsFQDN: true,
expectedHostname: "test.pod.hostname",
expectError: false,
}, {
description: "valid hostDomain, setHostnameAsFQDN false",
hostname: "test.pod.hostname",
hostDomain: "svc.subdomain.local",
setHostnameAsFQDN: false,
expectedHostname: "test.pod.hostname",
expectError: false,
}, {
description: "valid hostDomain, setHostnameAsFQDN true",
hostname: "test.pod.hostname",
hostDomain: "svc.subdomain.local",
setHostnameAsFQDN: true,
expectedHostname: "test.pod.hostname.svc.subdomain.local",
expectError: false,
}, {
description: "FQDN is too long, setHostnameAsFQDN false",
hostname: "1234567.1234567", //8*2-1=15 chars
hostDomain: "1234567.1234567.1234567.1234567.1234567.1234567.1234567", //8*7-1=55 chars
setHostnameAsFQDN: false, //FQDN=15 + 1(dot) + 55 = 71 chars
expectedHostname: "1234567.1234567",
expectError: false,
}, {
description: "FQDN is too long, setHostnameAsFQDN true",
hostname: "1234567.1234567", //8*2-1=15 chars
hostDomain: "1234567.1234567.1234567.1234567.1234567.1234567.1234567", //8*7-1=55 chars
setHostnameAsFQDN: true, //FQDN=15 + 1(dot) + 55 = 71 chars
expectedHostname: "",
expectError: true,
}}
for _, tc := range testcases {
t.Logf("TestCase: %q", tc.description)
outputHostname, err := GetNodenameForKernel(tc.hostname, tc.hostDomain, &tc.setHostnameAsFQDN)
if tc.expectError {
assert.Error(t, err)
} else {
assert.NoError(t, err)
}
assert.Equal(t, tc.expectedHostname, outputHostname)
}
}
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