121 lines
3.2 KiB
Go
121 lines
3.2 KiB
Go
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/initialize"
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)
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func TestMergeCloudConfig(t *testing.T) {
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simplecc := initialize.CloudConfig{
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SSHAuthorizedKeys: []string{"abc", "def"},
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Hostname: "foobar",
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NetworkConfigPath: "/path/somewhere",
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NetworkConfig: `{}`,
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}
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for i, tt := range []struct {
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udcc initialize.CloudConfig
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mdcc initialize.CloudConfig
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want initialize.CloudConfig
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}{
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{
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// If mdcc is empty, udcc should be returned unchanged
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simplecc,
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initialize.CloudConfig{},
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simplecc,
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},
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{
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// If udcc is empty, mdcc should be returned unchanged(overridden)
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initialize.CloudConfig{},
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simplecc,
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simplecc,
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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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simplecc,
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initialize.CloudConfig{
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Hostname: "meta-hostname",
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NetworkConfigPath: "/path/meta",
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NetworkConfig: `{"hostname":"test"}`,
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},
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simplecc,
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},
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{
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// Mixed merge should succeed
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initialize.CloudConfig{
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SSHAuthorizedKeys: []string{"abc", "def"},
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Hostname: "user-hostname",
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NetworkConfigPath: "/path/somewhere",
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NetworkConfig: `{"hostname":"test"}`,
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},
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initialize.CloudConfig{
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SSHAuthorizedKeys: []string{"woof", "qux"},
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Hostname: "meta-hostname",
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},
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initialize.CloudConfig{
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SSHAuthorizedKeys: []string{"abc", "def", "woof", "qux"},
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Hostname: "user-hostname",
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NetworkConfigPath: "/path/somewhere",
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NetworkConfig: `{"hostname":"test"}`,
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},
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},
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{
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// Completely non-conflicting merge should be fine
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initialize.CloudConfig{
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Hostname: "supercool",
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},
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initialize.CloudConfig{
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SSHAuthorizedKeys: []string{"zaphod", "beeblebrox"},
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NetworkConfigPath: "/dev/fun",
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NetworkConfig: `{"hostname":"test"}`,
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},
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initialize.CloudConfig{
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Hostname: "supercool",
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SSHAuthorizedKeys: []string{"zaphod", "beeblebrox"},
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NetworkConfigPath: "/dev/fun",
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NetworkConfig: `{"hostname":"test"}`,
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},
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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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initialize.CloudConfig{
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Hostname: "mememe",
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ManageEtcHosts: initialize.EtcHosts("lolz"),
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},
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initialize.CloudConfig{
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Hostname: "youyouyou",
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NetworkConfigPath: "meta-meta-yo",
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NetworkConfig: `{"hostname":"test"}`,
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},
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initialize.CloudConfig{
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Hostname: "mememe",
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ManageEtcHosts: initialize.EtcHosts("lolz"),
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NetworkConfigPath: "meta-meta-yo",
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NetworkConfig: `{"hostname":"test"}`,
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},
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},
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{
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// Non-mergeable (unexpected) settings in meta-data are ignored
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initialize.CloudConfig{
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Hostname: "mememe",
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},
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initialize.CloudConfig{
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ManageEtcHosts: initialize.EtcHosts("lolz"),
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NetworkConfigPath: "meta-meta-yo",
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NetworkConfig: `{"hostname":"test"}`,
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},
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initialize.CloudConfig{
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Hostname: "mememe",
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NetworkConfigPath: "meta-meta-yo",
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NetworkConfig: `{"hostname":"test"}`,
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},
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},
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} {
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got := mergeCloudConfig(tt.mdcc, tt.udcc)
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if !reflect.DeepEqual(got, tt.want) {
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t.Errorf("case #%d: mergeCloudConfig mutated CloudConfig unexpectedly:\ngot:\n%s\nwant:\n%s", i, got, tt.want)
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}
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}
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}
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