mirror of
https://github.com/kubernetes-sigs/external-dns.git
synced 2025-11-04 12:41:00 +01:00
114 lines
3.5 KiB
Go
114 lines
3.5 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 source
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import (
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"context"
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"testing"
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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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)
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// Validates that dedupSource is a Source
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var _ Source = &dedupSource{}
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func TestDedup(t *testing.T) {
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t.Run("Endpoints", testDedupEndpoints)
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}
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// testDedupEndpoints tests that duplicates from the wrapped source are removed.
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func testDedupEndpoints(t *testing.T) {
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for _, tc := range []struct {
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title string
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endpoints []*endpoint.Endpoint
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expected []*endpoint.Endpoint
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}{
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{
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"one endpoint returns one endpoint",
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[]*endpoint.Endpoint{
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{DNSName: "foo.example.org", Targets: endpoint.Targets{"1.2.3.4"}},
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},
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[]*endpoint.Endpoint{
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{DNSName: "foo.example.org", Targets: endpoint.Targets{"1.2.3.4"}},
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},
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},
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{
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"two different endpoints return two endpoints",
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[]*endpoint.Endpoint{
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{DNSName: "foo.example.org", Targets: endpoint.Targets{"1.2.3.4"}},
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{DNSName: "bar.example.org", Targets: endpoint.Targets{"4.5.6.7"}},
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},
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[]*endpoint.Endpoint{
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{DNSName: "foo.example.org", Targets: endpoint.Targets{"1.2.3.4"}},
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{DNSName: "bar.example.org", Targets: endpoint.Targets{"4.5.6.7"}},
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},
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},
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{
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"two endpoints with same dnsname and different targets return two endpoints",
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[]*endpoint.Endpoint{
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{DNSName: "foo.example.org", Targets: endpoint.Targets{"1.2.3.4"}},
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{DNSName: "foo.example.org", Targets: endpoint.Targets{"4.5.6.7"}},
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},
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[]*endpoint.Endpoint{
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{DNSName: "foo.example.org", Targets: endpoint.Targets{"1.2.3.4"}},
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{DNSName: "foo.example.org", Targets: endpoint.Targets{"4.5.6.7"}},
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},
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},
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{
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"two endpoints with different dnsname and same target return two endpoints",
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[]*endpoint.Endpoint{
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{DNSName: "foo.example.org", Targets: endpoint.Targets{"1.2.3.4"}},
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{DNSName: "bar.example.org", Targets: endpoint.Targets{"1.2.3.4"}},
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},
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[]*endpoint.Endpoint{
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{DNSName: "foo.example.org", Targets: endpoint.Targets{"1.2.3.4"}},
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{DNSName: "bar.example.org", Targets: endpoint.Targets{"1.2.3.4"}},
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},
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},
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{
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"two endpoints with same dnsname and same target return one endpoint",
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[]*endpoint.Endpoint{
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{DNSName: "foo.example.org", Targets: endpoint.Targets{"1.2.3.4"}},
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{DNSName: "foo.example.org", Targets: endpoint.Targets{"1.2.3.4"}},
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},
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[]*endpoint.Endpoint{
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{DNSName: "foo.example.org", Targets: endpoint.Targets{"1.2.3.4"}},
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},
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},
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} {
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t.Run(tc.title, func(t *testing.T) {
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mockSource := new(testutils.MockSource)
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mockSource.On("Endpoints").Return(tc.endpoints, nil)
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// Create our object under test and get the endpoints.
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source := NewDedupSource(mockSource)
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endpoints, err := source.Endpoints(context.Background())
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if err != nil {
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t.Fatal(err)
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}
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// Validate returned endpoints against desired endpoints.
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validateEndpoints(t, endpoints, tc.expected)
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// Validate that the mock source was called.
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mockSource.AssertExpectations(t)
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})
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}
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}
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