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https://github.com/kubernetes-sigs/external-dns.git
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f326f65c7e
* feat(source): promote MockSource to source package * feat(source): add MultiSource to merge other Sources * feat(source): make structs and members of multiSource private
84 lines
2.2 KiB
Go
84 lines
2.2 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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"testing"
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"github.com/kubernetes-incubator/external-dns/endpoint"
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)
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// Validates that multiSource is a Source
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var _ Source = &multiSource{}
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func TestMultiSource(t *testing.T) {
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t.Run("Endpoints", testMultiSourceEndpoints)
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}
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// testMultiSourceEndpoints tests merged endpoints from children are returned.
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func testMultiSourceEndpoints(t *testing.T) {
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foo := endpoint.Endpoint{DNSName: "foo", Target: "8.8.8.8"}
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bar := endpoint.Endpoint{DNSName: "bar", Target: "8.8.4.4"}
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for _, tc := range []struct {
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title string
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nestedEndpoints [][]endpoint.Endpoint
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expected []endpoint.Endpoint
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}{
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{
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"no child sources return no endpoints",
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nil,
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[]endpoint.Endpoint{},
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},
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{
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"single empty child source returns no endpoints",
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[][]endpoint.Endpoint{{}},
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[]endpoint.Endpoint{},
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},
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{
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"single non-empty child source returns child's endpoints",
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[][]endpoint.Endpoint{{foo}},
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[]endpoint.Endpoint{foo},
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},
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{
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"multiple non-empty child sources returns merged children's endpoints",
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[][]endpoint.Endpoint{{foo}, {bar}},
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[]endpoint.Endpoint{foo, bar},
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},
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} {
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t.Run(tc.title, func(t *testing.T) {
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// Prepare the nested mock sources
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sources := make([]Source, 0, len(tc.nestedEndpoints))
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for _, endpoints := range tc.nestedEndpoints {
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sources = append(sources, NewMockSource(endpoints))
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}
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// Create our object under test and get the endpoints.
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source := NewMultiSource(sources...)
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endpoints, err := source.Endpoints()
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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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})
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}
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}
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