90 lines
3.2 KiB
Go
90 lines
3.2 KiB
Go
// Copyright 2015 CoreOS, Inc.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package main
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import (
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"reflect"
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"testing"
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"github.com/coreos/coreos-cloudinit/config"
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"github.com/coreos/coreos-cloudinit/datasource"
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)
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func TestMergeConfigs(t *testing.T) {
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tests := []struct {
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cc *config.CloudConfig
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md datasource.Metadata
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out config.CloudConfig
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}{
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{
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// If md is empty and cc is nil, result should be empty
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out: config.CloudConfig{},
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},
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{
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// If md and cc are empty, result should be empty
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cc: &config.CloudConfig{},
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out: config.CloudConfig{},
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},
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{
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// If cc is empty, cc should be returned unchanged
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cc: &config.CloudConfig{SSHAuthorizedKeys: []string{"abc", "def"}, Hostname: "cc-host"},
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out: config.CloudConfig{SSHAuthorizedKeys: []string{"abc", "def"}, Hostname: "cc-host"},
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},
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{
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// If cc is empty, cc should be returned unchanged(overridden)
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cc: &config.CloudConfig{},
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md: datasource.Metadata{Hostname: "md-host", SSHPublicKeys: map[string]string{"key": "ghi"}},
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out: config.CloudConfig{SSHAuthorizedKeys: []string{"ghi"}, Hostname: "md-host"},
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},
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{
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// If cc is nil, cc should be returned unchanged(overridden)
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md: datasource.Metadata{Hostname: "md-host", SSHPublicKeys: map[string]string{"key": "ghi"}},
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out: config.CloudConfig{SSHAuthorizedKeys: []string{"ghi"}, Hostname: "md-host"},
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},
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{
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// user-data should override completely in the case of conflicts
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cc: &config.CloudConfig{SSHAuthorizedKeys: []string{"abc", "def"}, Hostname: "cc-host"},
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md: datasource.Metadata{Hostname: "md-host"},
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out: config.CloudConfig{SSHAuthorizedKeys: []string{"abc", "def"}, Hostname: "cc-host"},
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},
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{
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// Mixed merge should succeed
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cc: &config.CloudConfig{SSHAuthorizedKeys: []string{"abc", "def"}, Hostname: "cc-host"},
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md: datasource.Metadata{Hostname: "md-host", SSHPublicKeys: map[string]string{"key": "ghi"}},
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out: config.CloudConfig{SSHAuthorizedKeys: []string{"abc", "def", "ghi"}, Hostname: "cc-host"},
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},
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{
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// Completely non-conflicting merge should be fine
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cc: &config.CloudConfig{Hostname: "cc-host"},
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md: datasource.Metadata{SSHPublicKeys: map[string]string{"zaphod": "beeblebrox"}},
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out: config.CloudConfig{Hostname: "cc-host", SSHAuthorizedKeys: []string{"beeblebrox"}},
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},
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{
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// Non-mergeable settings in user-data should not be affected
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cc: &config.CloudConfig{Hostname: "cc-host", ManageEtcHosts: config.EtcHosts("lolz")},
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md: datasource.Metadata{Hostname: "md-host"},
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out: config.CloudConfig{Hostname: "cc-host", ManageEtcHosts: config.EtcHosts("lolz")},
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},
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}
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for i, tt := range tests {
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out := mergeConfigs(tt.cc, tt.md)
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if !reflect.DeepEqual(tt.out, out) {
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t.Errorf("bad config (%d): want %#v, got %#v", i, tt.out, out)
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}
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}
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}
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