mirror of
https://github.com/kubernetes-sigs/external-dns.git
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99371a1e83
* feat(google): add ability to apply changes generated from a plan * feat(controller): first implementation of controller * feat: allow to configure in-cluster and kubeconfig * fix(controller): call RunOnce at the right time and in a loop * feat(google): add dryRun attribute to Google DNS provider * fix: use hosted zone id instead of DNS name * fix(google): stupidly filter by A records for now * feat: allow specifying the google project and zone * feat: provide a dry-run flag which defaults to false * chore: vendor new dependencies * fix(config): fix failing tests for config object * ref(controller): return plain value of ApplyChanges * ref: simplify how to get a valid kubernetes client
85 lines
2.1 KiB
Go
85 lines
2.1 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 controller
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import (
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"errors"
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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/plan"
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)
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// mockSource returns mock endpoints.
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type mockSource struct{}
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// Endpoints returns a single desired test endpoint
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func (s *mockSource) Endpoints() ([]endpoint.Endpoint, error) {
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endpoints := []endpoint.Endpoint{
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{
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DNSName: "test-record",
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Target: "1.2.3.4",
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},
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}
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return endpoints, nil
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}
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// mockDNSProvider returns no current endpoints and validates that the applied
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// list of endpoints is correct.
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type mockDNSProvider struct{}
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// Records returns an empty list of current endpoints.
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func (p *mockDNSProvider) Records(zone string) ([]endpoint.Endpoint, error) {
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return []endpoint.Endpoint{}, nil
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}
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// ApplyChanges validates that the passed in changes satisfy a specifc assumtion.
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func (p *mockDNSProvider) ApplyChanges(zone string, changes *plan.Changes) error {
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if zone != "test-zone" {
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return errors.New("zone is incorrect")
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}
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if len(changes.Create) != 1 {
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return errors.New("number of created records is wrong")
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}
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create := changes.Create[0]
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if create.DNSName != "test-record" || create.Target != "1.2.3.4" {
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return errors.New("created record is wrong")
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}
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return nil
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}
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// TestRunOnce tests that RunOnce correctly orchestrates the different components.
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func TestRunOnce(t *testing.T) {
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ctrl := &Controller{
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Zone: "test-zone",
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Source: &mockSource{},
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DNSProvider: &mockDNSProvider{},
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}
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err := ctrl.RunOnce()
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if err != nil {
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t.Fatal(err)
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}
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}
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