mirror of
https://github.com/kubernetes-sigs/external-dns.git
synced 2025-11-04 12:41:00 +01:00
378 lines
10 KiB
Go
378 lines
10 KiB
Go
/*
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Copyright 2022 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 plural
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import (
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"context"
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"testing"
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"sigs.k8s.io/external-dns/plan"
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"sigs.k8s.io/external-dns/endpoint"
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"sigs.k8s.io/external-dns/internal/testutils"
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"github.com/stretchr/testify/assert"
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"sigs.k8s.io/external-dns/provider"
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)
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type ClientStub struct {
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mockDnsRecords []*DnsRecord
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}
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// CreateRecord provides a mock function with given fields: record
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func (c *ClientStub) CreateRecord(record *DnsRecord) (*DnsRecord, error) {
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c.mockDnsRecords = append(c.mockDnsRecords, record)
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return record, nil
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}
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// DeleteRecord provides a mock function with given fields: name, ttype
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func (c *ClientStub) DeleteRecord(name string, ttype string) error {
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newRecords := make([]*DnsRecord, 0)
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for _, record := range c.mockDnsRecords {
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if record.Name == name && record.Type == ttype {
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continue
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}
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newRecords = append(newRecords, record)
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}
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c.mockDnsRecords = newRecords
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return nil
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}
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// DnsRecords provides a mock function with given fields:
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func (c *ClientStub) DnsRecords() ([]*DnsRecord, error) {
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return c.mockDnsRecords, nil
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}
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func newPluralProvider(pluralDNSRecord []*DnsRecord) *PluralProvider {
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if pluralDNSRecord == nil {
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pluralDNSRecord = make([]*DnsRecord, 0)
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}
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return &PluralProvider{
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BaseProvider: provider.BaseProvider{},
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Client: &ClientStub{
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mockDnsRecords: pluralDNSRecord,
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},
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}
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}
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func TestPluralRecords(t *testing.T) {
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tests := []struct {
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name string
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expectedEndpoints []*endpoint.Endpoint
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records []*DnsRecord
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}{
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{
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name: "check records",
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records: []*DnsRecord{
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{
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Type: endpoint.RecordTypeA,
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Name: "example.com",
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Records: []string{"123.123.123.122"},
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},
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{
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Type: endpoint.RecordTypeA,
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Name: "nginx.example.com",
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Records: []string{"123.123.123.123"},
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},
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{
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Type: endpoint.RecordTypeCNAME,
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Name: "hack.example.com",
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Records: []string{"bluecatnetworks.com"},
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},
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{
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Type: endpoint.RecordTypeTXT,
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Name: "kdb.example.com",
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Records: []string{"heritage=external-dns,external-dns/owner=default,external-dns/resource=service/openshift-ingress/router-default"},
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},
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},
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expectedEndpoints: []*endpoint.Endpoint{
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{
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DNSName: "example.com",
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RecordType: endpoint.RecordTypeA,
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Targets: endpoint.Targets{"123.123.123.122"},
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},
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{
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DNSName: "nginx.example.com",
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RecordType: endpoint.RecordTypeA,
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Targets: endpoint.Targets{"123.123.123.123"},
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},
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{
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DNSName: "hack.example.com",
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RecordType: endpoint.RecordTypeCNAME,
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Targets: endpoint.Targets{"bluecatnetworks.com"},
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},
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{
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DNSName: "kdb.example.com",
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RecordType: endpoint.RecordTypeTXT,
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Targets: endpoint.Targets{"heritage=external-dns,external-dns/owner=default,external-dns/resource=service/openshift-ingress/router-default"},
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},
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},
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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provider := newPluralProvider(test.records)
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actual, err := provider.Records(context.Background())
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if err != nil {
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t.Fatal(err)
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}
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validateEndpoints(t, actual, test.expectedEndpoints)
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})
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}
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}
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func TestPluralApplyChangesCreate(t *testing.T) {
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tests := []struct {
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name string
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expectedEndpoints []*endpoint.Endpoint
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}{
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{
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name: "create new endpoints",
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expectedEndpoints: []*endpoint.Endpoint{
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{
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DNSName: "example.com",
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RecordType: endpoint.RecordTypeA,
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Targets: endpoint.Targets{"123.123.123.122"},
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},
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{
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DNSName: "nginx.example.com",
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RecordType: endpoint.RecordTypeA,
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Targets: endpoint.Targets{"123.123.123.123"},
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},
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{
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DNSName: "hack.example.com",
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RecordType: endpoint.RecordTypeCNAME,
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Targets: endpoint.Targets{"bluecatnetworks.com"},
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},
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{
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DNSName: "kdb.example.com",
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RecordType: endpoint.RecordTypeTXT,
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Targets: endpoint.Targets{"heritage=external-dns,external-dns/owner=default,external-dns/resource=service/openshift-ingress/router-default"},
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},
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},
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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provider := newPluralProvider(nil)
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// no records
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actual, err := provider.Records(context.Background())
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if err != nil {
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t.Fatal(err)
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}
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assert.Equal(t, len(actual), 0, "expected no entries")
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err = provider.ApplyChanges(context.Background(), &plan.Changes{Create: test.expectedEndpoints})
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if err != nil {
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t.Fatal(err)
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}
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actual, err = provider.Records(context.Background())
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if err != nil {
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t.Fatal(err)
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}
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validateEndpoints(t, actual, test.expectedEndpoints)
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})
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}
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}
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func TestPluralApplyChangesDelete(t *testing.T) {
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tests := []struct {
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name string
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records []*DnsRecord
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deleteEndpoints []*endpoint.Endpoint
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expectedEndpoints []*endpoint.Endpoint
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}{
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{
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name: "delete not existing record",
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records: []*DnsRecord{
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{
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Type: endpoint.RecordTypeA,
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Name: "example.com",
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Records: []string{"123.123.123.122"},
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},
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{
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Type: endpoint.RecordTypeA,
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Name: "nginx.example.com",
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Records: []string{"123.123.123.123"},
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},
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{
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Type: endpoint.RecordTypeCNAME,
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Name: "hack.example.com",
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Records: []string{"bluecatnetworks.com"},
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},
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{
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Type: endpoint.RecordTypeTXT,
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Name: "kdb.example.com",
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Records: []string{"heritage=external-dns,external-dns/owner=default,external-dns/resource=service/openshift-ingress/router-default"},
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},
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},
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deleteEndpoints: []*endpoint.Endpoint{
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{
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DNSName: "fake.com",
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RecordType: endpoint.RecordTypeA,
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Targets: endpoint.Targets{"1.2.3.4"},
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},
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},
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expectedEndpoints: []*endpoint.Endpoint{
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{
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DNSName: "example.com",
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RecordType: endpoint.RecordTypeA,
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Targets: endpoint.Targets{"123.123.123.122"},
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},
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{
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DNSName: "nginx.example.com",
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RecordType: endpoint.RecordTypeA,
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Targets: endpoint.Targets{"123.123.123.123"},
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},
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{
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DNSName: "hack.example.com",
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RecordType: endpoint.RecordTypeCNAME,
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Targets: endpoint.Targets{"bluecatnetworks.com"},
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},
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{
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DNSName: "kdb.example.com",
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RecordType: endpoint.RecordTypeTXT,
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Targets: endpoint.Targets{"heritage=external-dns,external-dns/owner=default,external-dns/resource=service/openshift-ingress/router-default"},
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},
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},
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},
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{
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name: "delete one record",
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records: []*DnsRecord{
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{
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Type: endpoint.RecordTypeA,
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Name: "example.com",
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Records: []string{"123.123.123.122"},
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},
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{
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Type: endpoint.RecordTypeA,
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Name: "nginx.example.com",
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Records: []string{"123.123.123.123"},
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},
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{
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Type: endpoint.RecordTypeCNAME,
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Name: "hack.example.com",
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Records: []string{"bluecatnetworks.com"},
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},
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{
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Type: endpoint.RecordTypeTXT,
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Name: "kdb.example.com",
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Records: []string{"heritage=external-dns,external-dns/owner=default,external-dns/resource=service/openshift-ingress/router-default"},
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},
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},
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deleteEndpoints: []*endpoint.Endpoint{
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{
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DNSName: "kdb.example.com",
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RecordType: endpoint.RecordTypeTXT,
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Targets: endpoint.Targets{"heritage=external-dns,external-dns/owner=default,external-dns/resource=service/openshift-ingress/router-default"},
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},
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},
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expectedEndpoints: []*endpoint.Endpoint{
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{
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DNSName: "example.com",
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RecordType: endpoint.RecordTypeA,
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Targets: endpoint.Targets{"123.123.123.122"},
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},
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{
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DNSName: "nginx.example.com",
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RecordType: endpoint.RecordTypeA,
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Targets: endpoint.Targets{"123.123.123.123"},
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},
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{
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DNSName: "hack.example.com",
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RecordType: endpoint.RecordTypeCNAME,
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Targets: endpoint.Targets{"bluecatnetworks.com"},
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},
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},
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},
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{
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name: "delete all records",
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records: []*DnsRecord{
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{
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Type: endpoint.RecordTypeA,
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Name: "example.com",
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Records: []string{"123.123.123.122"},
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},
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{
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Type: endpoint.RecordTypeA,
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Name: "nginx.example.com",
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Records: []string{"123.123.123.123"},
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},
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{
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Type: endpoint.RecordTypeCNAME,
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Name: "hack.example.com",
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Records: []string{"bluecatnetworks.com"},
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},
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{
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Type: endpoint.RecordTypeTXT,
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Name: "kdb.example.com",
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Records: []string{"heritage=external-dns,external-dns/owner=default,external-dns/resource=service/openshift-ingress/router-default"},
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},
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},
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deleteEndpoints: []*endpoint.Endpoint{
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{
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DNSName: "kdb.example.com",
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RecordType: endpoint.RecordTypeTXT,
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Targets: endpoint.Targets{"heritage=external-dns,external-dns/owner=default,external-dns/resource=service/openshift-ingress/router-default"},
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},
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{
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DNSName: "example.com",
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RecordType: endpoint.RecordTypeA,
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Targets: endpoint.Targets{"123.123.123.122"},
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},
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{
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DNSName: "nginx.example.com",
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RecordType: endpoint.RecordTypeA,
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Targets: endpoint.Targets{"123.123.123.123"},
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},
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{
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DNSName: "hack.example.com",
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RecordType: endpoint.RecordTypeCNAME,
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Targets: endpoint.Targets{"bluecatnetworks.com"},
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},
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},
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expectedEndpoints: []*endpoint.Endpoint{},
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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provider := newPluralProvider(test.records)
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err := provider.ApplyChanges(context.Background(), &plan.Changes{Delete: test.deleteEndpoints})
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if err != nil {
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t.Fatal(err)
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}
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actual, err := provider.Records(context.Background())
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if err != nil {
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t.Fatal(err)
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}
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validateEndpoints(t, actual, test.expectedEndpoints)
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})
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}
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}
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func validateEndpoints(t *testing.T, endpoints []*endpoint.Endpoint, expected []*endpoint.Endpoint) {
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assert.True(t, testutils.SameEndpoints(endpoints, expected), "expected and actual endpoints don't match. %s:%s", endpoints, expected)
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}
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