mirror of https://github.com/knative/pkg.git
89 lines
1.9 KiB
Go
89 lines
1.9 KiB
Go
/*
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Copyright 2019 The Knative 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 network
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import (
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"strings"
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"testing"
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)
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func TestGetDomainName(t *testing.T) {
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tests := []struct {
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name string
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env string
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resolvConf string
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want string
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}{{
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name: "all good",
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resolvConf: `
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nameserver 1.1.1.1
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search default.svc.abc.com svc.abc.com abc.com
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options ndots:5
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`,
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want: "abc.com",
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}, {
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name: "all good with env set but ignored",
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resolvConf: `
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nameserver 1.1.1.1
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search default.svc.abc.com svc.abc.com abc.com
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options ndots:5
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`,
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env: "ignored.com",
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want: "abc.com",
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}, {
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name: "all good from env",
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resolvConf: ``,
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env: "abc.com",
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want: "abc.com",
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}, {
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name: "all good with trailing dot",
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resolvConf: `
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nameserver 1.1.1.1
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search default.svc.abc.com. svc.abc.com. abc.com.
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options ndots:5
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`,
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want: "abc.com",
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}, {
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name: "missing search line",
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resolvConf: `
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nameserver 1.1.1.1
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options ndots:5
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`,
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want: defaultDomainName,
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}, {
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name: "non k8s resolv.conf format",
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resolvConf: `
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nameserver 1.1.1.1
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search abc.com xyz.com
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options ndots:5
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`,
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want: defaultDomainName,
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}}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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if len(tt.env) > 0 {
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t.Setenv(clusterDomainEnvKey, tt.env)
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}
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got := getClusterDomainName(strings.NewReader(tt.resolvConf))
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if got != tt.want {
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t.Errorf("Test %s failed expected: %s but got: %s", tt.name, tt.want, got)
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}
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})
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}
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}
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