mirror of
https://github.com/kubernetes-sigs/external-dns.git
synced 2025-08-07 18:16:57 +02:00
fab942f486
The controller will retrieve all the endpoints at the beginning of its loop. When changes need to be applied, the provider may need to query the endpoints again. Allow the provider to skip the queries if its data was cached.
800 lines
19 KiB
Go
800 lines
19 KiB
Go
/*
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Copyright 2017 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 provider
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import (
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"context"
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"testing"
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"github.com/kubernetes-incubator/external-dns/endpoint"
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"github.com/kubernetes-incubator/external-dns/internal/testutils"
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"github.com/kubernetes-incubator/external-dns/plan"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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var (
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_ Provider = &InMemoryProvider{}
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)
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func TestInMemoryProvider(t *testing.T) {
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t.Run("findByType", testInMemoryFindByType)
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t.Run("Records", testInMemoryRecords)
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t.Run("validateChangeBatch", testInMemoryValidateChangeBatch)
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t.Run("ApplyChanges", testInMemoryApplyChanges)
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t.Run("NewInMemoryProvider", testNewInMemoryProvider)
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t.Run("CreateZone", testInMemoryCreateZone)
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}
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func testInMemoryFindByType(t *testing.T) {
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for _, ti := range []struct {
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title string
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findType string
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records []*inMemoryRecord
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expected *inMemoryRecord
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expectedEmpty bool
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}{
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{
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title: "no records, empty type",
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findType: "",
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records: nil,
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expected: nil,
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expectedEmpty: true,
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},
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{
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title: "no records, non-empty type",
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findType: endpoint.RecordTypeA,
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records: nil,
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expected: nil,
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expectedEmpty: true,
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},
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{
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title: "one record, empty type",
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findType: "",
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records: []*inMemoryRecord{
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{
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Type: endpoint.RecordTypeA,
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},
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},
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expected: nil,
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expectedEmpty: true,
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},
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{
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title: "one record, wrong type",
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findType: endpoint.RecordTypeCNAME,
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records: []*inMemoryRecord{
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{
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Type: endpoint.RecordTypeA,
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},
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},
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expected: nil,
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expectedEmpty: true,
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},
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{
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title: "one record, right type",
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findType: endpoint.RecordTypeA,
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records: []*inMemoryRecord{
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{
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Type: endpoint.RecordTypeA,
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},
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},
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expected: &inMemoryRecord{
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Type: endpoint.RecordTypeA,
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},
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},
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{
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title: "multiple records, right type",
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findType: endpoint.RecordTypeA,
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records: []*inMemoryRecord{
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{
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Type: endpoint.RecordTypeA,
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},
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{
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Type: endpoint.RecordTypeTXT,
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},
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},
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expected: &inMemoryRecord{
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Type: endpoint.RecordTypeA,
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},
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},
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} {
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t.Run(ti.title, func(t *testing.T) {
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c := newInMemoryClient()
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record := c.findByType(ti.findType, ti.records)
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if ti.expectedEmpty {
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assert.Nil(t, record)
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} else {
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require.NotNil(t, record)
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assert.Equal(t, *ti.expected, *record)
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}
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})
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}
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}
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func testInMemoryRecords(t *testing.T) {
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for _, ti := range []struct {
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title string
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zone string
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expectError bool
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init map[string]zone
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expected []*endpoint.Endpoint
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}{
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{
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title: "no records, no zone",
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zone: "",
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init: map[string]zone{},
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expectError: false,
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},
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{
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title: "records, wrong zone",
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zone: "net",
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init: map[string]zone{
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"org": {},
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"com": {},
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},
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expectError: false,
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},
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{
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title: "records, zone with records",
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zone: "org",
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init: map[string]zone{
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"org": {
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"example.org": []*inMemoryRecord{
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{
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Name: "example.org",
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Target: "8.8.8.8",
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Type: endpoint.RecordTypeA,
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},
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{
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Name: "example.org",
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Type: endpoint.RecordTypeTXT,
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},
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},
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"foo.org": []*inMemoryRecord{
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{
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Name: "foo.org",
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Target: "4.4.4.4",
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Type: endpoint.RecordTypeCNAME,
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},
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},
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},
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"com": {
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"example.com": []*inMemoryRecord{
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{
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Name: "example.com",
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Target: "4.4.4.4",
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Type: endpoint.RecordTypeCNAME,
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},
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},
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},
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},
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expectError: false,
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expected: []*endpoint.Endpoint{
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{
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DNSName: "example.org",
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Targets: endpoint.Targets{"8.8.8.8"},
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RecordType: endpoint.RecordTypeA,
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},
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{
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DNSName: "example.org",
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RecordType: endpoint.RecordTypeTXT,
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Targets: endpoint.Targets{""},
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},
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{
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DNSName: "foo.org",
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Targets: endpoint.Targets{"4.4.4.4"},
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RecordType: endpoint.RecordTypeCNAME,
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},
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},
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},
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} {
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t.Run(ti.title, func(t *testing.T) {
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c := newInMemoryClient()
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c.zones = ti.init
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im := NewInMemoryProvider()
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im.client = c
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f := filter{domain: ti.zone}
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im.filter = &f
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records, err := im.Records()
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if ti.expectError {
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assert.Nil(t, records)
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assert.EqualError(t, err, ErrZoneNotFound.Error())
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} else {
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require.NoError(t, err)
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assert.True(t, testutils.SameEndpoints(ti.expected, records), "Endpoints not the same: Expected: %+v Records: %+v", ti.expected, records)
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}
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})
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}
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}
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func testInMemoryValidateChangeBatch(t *testing.T) {
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init := map[string]zone{
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"org": {
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"example.org": []*inMemoryRecord{
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{
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Name: "example.org",
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Target: "8.8.8.8",
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Type: endpoint.RecordTypeA,
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},
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{
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Name: "example.org",
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},
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},
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"foo.org": []*inMemoryRecord{
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{
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Name: "foo.org",
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Target: "bar.org",
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Type: endpoint.RecordTypeCNAME,
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},
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},
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"foo.bar.org": []*inMemoryRecord{
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{
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Name: "foo.bar.org",
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Target: "5.5.5.5",
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Type: endpoint.RecordTypeA,
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},
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},
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},
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"com": {
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"example.com": []*inMemoryRecord{
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{
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Name: "example.com",
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Target: "another-example.com",
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Type: endpoint.RecordTypeCNAME,
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},
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},
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},
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}
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for _, ti := range []struct {
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title string
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expectError bool
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errorType error
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init map[string]zone
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changes *plan.Changes
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zone string
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}{
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{
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title: "no zones, no update",
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expectError: true,
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zone: "",
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init: map[string]zone{},
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changes: &plan.Changes{
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Create: []*endpoint.Endpoint{},
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UpdateNew: []*endpoint.Endpoint{},
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UpdateOld: []*endpoint.Endpoint{},
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Delete: []*endpoint.Endpoint{},
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},
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errorType: ErrZoneNotFound,
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},
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{
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title: "zones, no update",
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expectError: true,
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zone: "",
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init: init,
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changes: &plan.Changes{
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Create: []*endpoint.Endpoint{},
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UpdateNew: []*endpoint.Endpoint{},
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UpdateOld: []*endpoint.Endpoint{},
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Delete: []*endpoint.Endpoint{},
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},
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errorType: ErrZoneNotFound,
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},
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{
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title: "zones, update, wrong zone",
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expectError: true,
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zone: "test",
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init: init,
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changes: &plan.Changes{
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Create: []*endpoint.Endpoint{},
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UpdateNew: []*endpoint.Endpoint{},
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UpdateOld: []*endpoint.Endpoint{},
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Delete: []*endpoint.Endpoint{},
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},
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errorType: ErrZoneNotFound,
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},
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{
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title: "zones, update, right zone, invalid batch - already exists",
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expectError: true,
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zone: "org",
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init: init,
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changes: &plan.Changes{
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Create: []*endpoint.Endpoint{
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{
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DNSName: "example.org",
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Targets: endpoint.Targets{"8.8.8.8"},
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RecordType: endpoint.RecordTypeA,
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},
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},
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UpdateNew: []*endpoint.Endpoint{},
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UpdateOld: []*endpoint.Endpoint{},
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Delete: []*endpoint.Endpoint{},
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},
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errorType: ErrRecordAlreadyExists,
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},
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{
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title: "zones, update, right zone, invalid batch - record not found for update",
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expectError: true,
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zone: "org",
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init: init,
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changes: &plan.Changes{
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Create: []*endpoint.Endpoint{
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{
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DNSName: "foo.org",
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Targets: endpoint.Targets{"4.4.4.4"},
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RecordType: endpoint.RecordTypeA,
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},
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},
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UpdateNew: []*endpoint.Endpoint{
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{
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DNSName: "foo.org",
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Targets: endpoint.Targets{"4.4.4.4"},
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RecordType: endpoint.RecordTypeA,
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},
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},
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UpdateOld: []*endpoint.Endpoint{},
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Delete: []*endpoint.Endpoint{},
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},
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errorType: ErrRecordNotFound,
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},
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{
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title: "zones, update, right zone, invalid batch - record not found for update",
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expectError: true,
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zone: "org",
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init: init,
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changes: &plan.Changes{
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Create: []*endpoint.Endpoint{
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{
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DNSName: "foo.org",
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Targets: endpoint.Targets{"4.4.4.4"},
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RecordType: endpoint.RecordTypeA,
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},
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},
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UpdateNew: []*endpoint.Endpoint{
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{
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DNSName: "foo.org",
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Targets: endpoint.Targets{"4.4.4.4"},
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RecordType: endpoint.RecordTypeA,
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},
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},
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UpdateOld: []*endpoint.Endpoint{},
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Delete: []*endpoint.Endpoint{},
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},
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errorType: ErrRecordNotFound,
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},
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{
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title: "zones, update, right zone, invalid batch - duplicated create",
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expectError: true,
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zone: "org",
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init: init,
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changes: &plan.Changes{
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Create: []*endpoint.Endpoint{
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{
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DNSName: "foo.org",
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Targets: endpoint.Targets{"4.4.4.4"},
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RecordType: endpoint.RecordTypeA,
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},
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{
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DNSName: "foo.org",
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Targets: endpoint.Targets{"4.4.4.4"},
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RecordType: endpoint.RecordTypeA,
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},
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},
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UpdateNew: []*endpoint.Endpoint{},
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UpdateOld: []*endpoint.Endpoint{},
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Delete: []*endpoint.Endpoint{},
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},
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errorType: ErrDuplicateRecordFound,
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},
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{
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title: "zones, update, right zone, invalid batch - duplicated update/delete",
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expectError: true,
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zone: "org",
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init: init,
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changes: &plan.Changes{
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Create: []*endpoint.Endpoint{},
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UpdateNew: []*endpoint.Endpoint{
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{
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DNSName: "example.org",
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Targets: endpoint.Targets{"8.8.8.8"},
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RecordType: endpoint.RecordTypeA,
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},
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},
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UpdateOld: []*endpoint.Endpoint{},
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Delete: []*endpoint.Endpoint{
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{
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DNSName: "example.org",
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Targets: endpoint.Targets{"8.8.8.8"},
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RecordType: endpoint.RecordTypeA,
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},
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},
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},
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errorType: ErrDuplicateRecordFound,
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},
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{
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title: "zones, update, right zone, invalid batch - duplicated update",
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expectError: true,
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zone: "org",
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init: init,
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changes: &plan.Changes{
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Create: []*endpoint.Endpoint{},
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UpdateNew: []*endpoint.Endpoint{
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{
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DNSName: "example.org",
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Targets: endpoint.Targets{"8.8.8.8"},
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RecordType: endpoint.RecordTypeA,
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},
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{
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DNSName: "example.org",
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Targets: endpoint.Targets{"8.8.8.8"},
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RecordType: endpoint.RecordTypeA,
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},
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},
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UpdateOld: []*endpoint.Endpoint{},
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Delete: []*endpoint.Endpoint{},
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},
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errorType: ErrDuplicateRecordFound,
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},
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{
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title: "zones, update, right zone, invalid batch - wrong update old",
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expectError: true,
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zone: "org",
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init: init,
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changes: &plan.Changes{
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Create: []*endpoint.Endpoint{},
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UpdateNew: []*endpoint.Endpoint{},
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UpdateOld: []*endpoint.Endpoint{
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{
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DNSName: "new.org",
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Targets: endpoint.Targets{"8.8.8.8"},
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RecordType: endpoint.RecordTypeA,
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},
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},
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Delete: []*endpoint.Endpoint{},
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},
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errorType: ErrRecordNotFound,
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},
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{
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title: "zones, update, right zone, invalid batch - wrong delete",
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expectError: true,
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zone: "org",
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init: init,
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changes: &plan.Changes{
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Create: []*endpoint.Endpoint{},
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UpdateNew: []*endpoint.Endpoint{},
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UpdateOld: []*endpoint.Endpoint{},
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Delete: []*endpoint.Endpoint{
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{
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DNSName: "new.org",
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Targets: endpoint.Targets{"8.8.8.8"},
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RecordType: endpoint.RecordTypeA,
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},
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},
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},
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errorType: ErrRecordNotFound,
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},
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{
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title: "zones, update, right zone, valid batch - delete",
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expectError: false,
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zone: "org",
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init: init,
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changes: &plan.Changes{
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Create: []*endpoint.Endpoint{},
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UpdateNew: []*endpoint.Endpoint{},
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UpdateOld: []*endpoint.Endpoint{},
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Delete: []*endpoint.Endpoint{
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{
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DNSName: "foo.bar.org",
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Targets: endpoint.Targets{"5.5.5.5"},
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RecordType: endpoint.RecordTypeA,
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},
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},
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},
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},
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{
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title: "zones, update, right zone, valid batch - update and create",
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expectError: false,
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zone: "org",
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init: init,
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changes: &plan.Changes{
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Create: []*endpoint.Endpoint{
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{
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DNSName: "foo.bar.new.org",
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Targets: endpoint.Targets{"4.8.8.9"},
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RecordType: endpoint.RecordTypeA,
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},
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},
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UpdateNew: []*endpoint.Endpoint{
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{
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DNSName: "foo.bar.org",
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Targets: endpoint.Targets{"4.8.8.4"},
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RecordType: endpoint.RecordTypeA,
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},
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},
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UpdateOld: []*endpoint.Endpoint{
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{
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DNSName: "foo.bar.org",
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Targets: endpoint.Targets{"5.5.5.5"},
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RecordType: endpoint.RecordTypeA,
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},
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},
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Delete: []*endpoint.Endpoint{},
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},
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},
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} {
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t.Run(ti.title, func(t *testing.T) {
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c := &inMemoryClient{}
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c.zones = ti.init
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ichanges := &inMemoryChange{
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Create: convertToInMemoryRecord(ti.changes.Create),
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UpdateNew: convertToInMemoryRecord(ti.changes.UpdateNew),
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UpdateOld: convertToInMemoryRecord(ti.changes.UpdateOld),
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Delete: convertToInMemoryRecord(ti.changes.Delete),
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}
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err := c.validateChangeBatch(ti.zone, ichanges)
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if ti.expectError {
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assert.EqualError(t, err, ti.errorType.Error())
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} else {
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assert.NoError(t, err)
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}
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})
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}
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}
|
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|
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func getInitData() map[string]zone {
|
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return map[string]zone{
|
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"org": {
|
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"example.org": []*inMemoryRecord{
|
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{
|
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Name: "example.org",
|
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Target: "8.8.8.8",
|
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Type: endpoint.RecordTypeA,
|
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},
|
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{
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Name: "example.org",
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Type: endpoint.RecordTypeTXT,
|
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},
|
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},
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"foo.org": []*inMemoryRecord{
|
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{
|
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Name: "foo.org",
|
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Target: "4.4.4.4",
|
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Type: endpoint.RecordTypeCNAME,
|
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},
|
|
},
|
|
"foo.bar.org": []*inMemoryRecord{
|
|
{
|
|
Name: "foo.bar.org",
|
|
Target: "5.5.5.5",
|
|
Type: endpoint.RecordTypeA,
|
|
},
|
|
},
|
|
},
|
|
"com": {
|
|
"example.com": []*inMemoryRecord{
|
|
{
|
|
Name: "example.com",
|
|
Target: "4.4.4.4",
|
|
Type: endpoint.RecordTypeCNAME,
|
|
},
|
|
},
|
|
},
|
|
}
|
|
}
|
|
|
|
func testInMemoryApplyChanges(t *testing.T) {
|
|
for _, ti := range []struct {
|
|
title string
|
|
expectError bool
|
|
init map[string]zone
|
|
changes *plan.Changes
|
|
expectedZonesState map[string]zone
|
|
}{
|
|
{
|
|
title: "unmatched zone, should be ignored in the apply step",
|
|
expectError: false,
|
|
changes: &plan.Changes{
|
|
Create: []*endpoint.Endpoint{{
|
|
DNSName: "example.de",
|
|
Targets: endpoint.Targets{"8.8.8.8"},
|
|
RecordType: endpoint.RecordTypeA,
|
|
}},
|
|
UpdateNew: []*endpoint.Endpoint{},
|
|
UpdateOld: []*endpoint.Endpoint{},
|
|
Delete: []*endpoint.Endpoint{},
|
|
},
|
|
expectedZonesState: getInitData(),
|
|
},
|
|
{
|
|
title: "expect error",
|
|
expectError: true,
|
|
changes: &plan.Changes{
|
|
Create: []*endpoint.Endpoint{},
|
|
UpdateNew: []*endpoint.Endpoint{
|
|
{
|
|
DNSName: "example.org",
|
|
Targets: endpoint.Targets{"8.8.8.8"},
|
|
RecordType: endpoint.RecordTypeA,
|
|
},
|
|
},
|
|
UpdateOld: []*endpoint.Endpoint{},
|
|
Delete: []*endpoint.Endpoint{
|
|
{
|
|
DNSName: "example.org",
|
|
Targets: endpoint.Targets{"8.8.8.8"},
|
|
RecordType: endpoint.RecordTypeA,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
title: "zones, update, right zone, valid batch - delete",
|
|
expectError: false,
|
|
changes: &plan.Changes{
|
|
Create: []*endpoint.Endpoint{},
|
|
UpdateNew: []*endpoint.Endpoint{},
|
|
UpdateOld: []*endpoint.Endpoint{},
|
|
Delete: []*endpoint.Endpoint{
|
|
{
|
|
DNSName: "foo.bar.org",
|
|
Targets: endpoint.Targets{"5.5.5.5"},
|
|
RecordType: endpoint.RecordTypeA,
|
|
},
|
|
},
|
|
},
|
|
expectedZonesState: map[string]zone{
|
|
"org": {
|
|
"example.org": []*inMemoryRecord{
|
|
{
|
|
|
|
Name: "example.org",
|
|
Target: "8.8.8.8",
|
|
Type: endpoint.RecordTypeA,
|
|
},
|
|
{
|
|
|
|
Name: "example.org",
|
|
Type: endpoint.RecordTypeTXT,
|
|
},
|
|
},
|
|
"foo.org": []*inMemoryRecord{
|
|
{
|
|
|
|
Name: "foo.org",
|
|
Target: "4.4.4.4",
|
|
Type: endpoint.RecordTypeCNAME,
|
|
},
|
|
},
|
|
"foo.bar.org": []*inMemoryRecord{},
|
|
},
|
|
"com": {
|
|
"example.com": []*inMemoryRecord{
|
|
{
|
|
Name: "example.com",
|
|
Target: "4.4.4.4",
|
|
Type: endpoint.RecordTypeCNAME,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
title: "zones, update, right zone, valid batch - update, create, delete",
|
|
expectError: false,
|
|
changes: &plan.Changes{
|
|
Create: []*endpoint.Endpoint{
|
|
{
|
|
DNSName: "foo.bar.new.org",
|
|
Targets: endpoint.Targets{"4.8.8.9"},
|
|
RecordType: endpoint.RecordTypeA,
|
|
},
|
|
},
|
|
UpdateNew: []*endpoint.Endpoint{
|
|
{
|
|
DNSName: "foo.bar.org",
|
|
Targets: endpoint.Targets{"4.8.8.4"},
|
|
RecordType: endpoint.RecordTypeA,
|
|
},
|
|
},
|
|
UpdateOld: []*endpoint.Endpoint{
|
|
{
|
|
DNSName: "foo.bar.org",
|
|
Targets: endpoint.Targets{"5.5.5.5"},
|
|
RecordType: endpoint.RecordTypeA,
|
|
},
|
|
},
|
|
Delete: []*endpoint.Endpoint{
|
|
{
|
|
DNSName: "example.org",
|
|
Targets: endpoint.Targets{"8.8.8.8"},
|
|
RecordType: endpoint.RecordTypeA,
|
|
},
|
|
},
|
|
},
|
|
expectedZonesState: map[string]zone{
|
|
"org": {
|
|
"example.org": []*inMemoryRecord{
|
|
{
|
|
Name: "example.org",
|
|
Type: endpoint.RecordTypeTXT,
|
|
},
|
|
},
|
|
"foo.org": []*inMemoryRecord{
|
|
{
|
|
Name: "foo.org",
|
|
Target: "4.4.4.4",
|
|
Type: endpoint.RecordTypeCNAME,
|
|
},
|
|
},
|
|
"foo.bar.org": []*inMemoryRecord{
|
|
{
|
|
Name: "foo.bar.org",
|
|
Target: "4.8.8.4",
|
|
Type: endpoint.RecordTypeA,
|
|
},
|
|
},
|
|
"foo.bar.new.org": []*inMemoryRecord{
|
|
{
|
|
Name: "foo.bar.new.org",
|
|
Target: "4.8.8.9",
|
|
Type: endpoint.RecordTypeA,
|
|
},
|
|
},
|
|
},
|
|
"com": {
|
|
"example.com": []*inMemoryRecord{
|
|
{
|
|
Name: "example.com",
|
|
Target: "4.4.4.4",
|
|
Type: endpoint.RecordTypeCNAME,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
} {
|
|
t.Run(ti.title, func(t *testing.T) {
|
|
|
|
im := NewInMemoryProvider()
|
|
c := &inMemoryClient{}
|
|
c.zones = getInitData()
|
|
im.client = c
|
|
|
|
err := im.ApplyChanges(context.Background(), ti.changes)
|
|
if ti.expectError {
|
|
assert.Error(t, err)
|
|
} else {
|
|
require.NoError(t, err)
|
|
assert.Equal(t, ti.expectedZonesState, c.zones)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func testNewInMemoryProvider(t *testing.T) {
|
|
cfg := NewInMemoryProvider()
|
|
assert.NotNil(t, cfg.client)
|
|
}
|
|
|
|
func testInMemoryCreateZone(t *testing.T) {
|
|
im := NewInMemoryProvider()
|
|
err := im.CreateZone("zone")
|
|
assert.NoError(t, err)
|
|
err = im.CreateZone("zone")
|
|
assert.EqualError(t, err, ErrZoneAlreadyExists.Error())
|
|
}
|