mirror of
https://github.com/kubernetes-sigs/external-dns.git
synced 2025-08-06 17:46:57 +02:00
139 lines
3.5 KiB
Go
139 lines
3.5 KiB
Go
/*
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Copyright 2018 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 source
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import (
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"encoding/gob"
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"net"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/suite"
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"sigs.k8s.io/external-dns/endpoint"
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)
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type ConnectorSuite struct {
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suite.Suite
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}
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func (suite *ConnectorSuite) SetupTest() {
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}
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func startServerToServeTargets(t *testing.T, server string, endpoints []*endpoint.Endpoint) {
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ln, err := net.Listen("tcp", server)
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if err != nil {
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t.Fatal(err)
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}
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go func() {
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conn, err := ln.Accept()
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if err != nil {
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ln.Close()
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return
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}
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enc := gob.NewEncoder(conn)
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enc.Encode(endpoints)
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ln.Close()
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}()
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t.Logf("Server listening on %s", server)
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}
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func TestConnectorSource(t *testing.T) {
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suite.Run(t, new(ConnectorSuite))
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t.Run("Interface", testConnectorSourceImplementsSource)
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t.Run("Endpoints", testConnectorSourceEndpoints)
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}
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// testConnectorSourceImplementsSource tests that connectorSource is a valid Source.
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func testConnectorSourceImplementsSource(t *testing.T) {
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assert.Implements(t, (*Source)(nil), new(connectorSource))
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}
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// testConnectorSourceEndpoints tests that NewConnectorSource doesn't return an error.
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func testConnectorSourceEndpoints(t *testing.T) {
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for _, ti := range []struct {
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title string
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serverListenAddress string
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serverAddress string
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expected []*endpoint.Endpoint
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expectError bool
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}{
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{
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title: "invalid remote server",
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serverListenAddress: "",
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serverAddress: "localhost:8091",
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expectError: true,
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},
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{
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title: "valid remote server with no endpoints",
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serverListenAddress: "127.0.0.1:8080",
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serverAddress: "127.0.0.1:8080",
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expectError: false,
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},
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{
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title: "valid remote server",
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serverListenAddress: "127.0.0.1:8081",
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serverAddress: "127.0.0.1:8081",
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expected: []*endpoint.Endpoint{
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{DNSName: "abc.example.org",
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Targets: endpoint.Targets{"1.2.3.4"},
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RecordType: endpoint.RecordTypeA,
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RecordTTL: 180,
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},
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},
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expectError: false,
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},
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{
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title: "valid remote server with multiple endpoints",
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serverListenAddress: "127.0.0.1:8082",
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serverAddress: "127.0.0.1:8082",
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expected: []*endpoint.Endpoint{
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{DNSName: "abc.example.org",
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Targets: endpoint.Targets{"1.2.3.4"},
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RecordType: endpoint.RecordTypeA,
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RecordTTL: 180,
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},
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{DNSName: "xyz.example.org",
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Targets: endpoint.Targets{"abc.example.org"},
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RecordType: endpoint.RecordTypeCNAME,
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RecordTTL: 180,
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},
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},
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expectError: false,
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},
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} {
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t.Run(ti.title, func(t *testing.T) {
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if ti.serverListenAddress != "" {
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startServerToServeTargets(t, ti.serverListenAddress, ti.expected)
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}
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cs, _ := NewConnectorSource(ti.serverAddress)
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endpoints, err := cs.Endpoints()
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if ti.expectError {
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assert.Error(t, err)
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} else {
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assert.NoError(t, err)
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}
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// Validate returned endpoints against expected endpoints.
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validateEndpoints(t, endpoints, ti.expected)
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})
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}
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}
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