31cfad91e3
This change creates a few simple interfaces for coreos-specific configuration options and moves things to them wherever possible; so if an option needs to write a file, or create a unit, it is acted on exactly the same way as every other file/unit that needs to be written during the cloud configuration process.
86 lines
1.8 KiB
Go
86 lines
1.8 KiB
Go
package initialize
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import (
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"fmt"
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"io/ioutil"
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"os"
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"path"
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"testing"
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"github.com/coreos/coreos-cloudinit/system"
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)
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func TestCloudConfigManageEtcHosts(t *testing.T) {
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contents := `
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manage_etc_hosts: localhost
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`
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cfg, err := NewCloudConfig(contents)
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if err != nil {
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t.Fatalf("Encountered unexpected error: %v", err)
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}
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manageEtcHosts := cfg.ManageEtcHosts
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if manageEtcHosts != "localhost" {
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t.Errorf("ManageEtcHosts value is %q, expected 'localhost'", manageEtcHosts)
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}
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}
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func TestManageEtcHostsInvalidValue(t *testing.T) {
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eh := EtcHosts("invalid")
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if f, err := eh.File(""); err == nil || f != nil {
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t.Fatalf("EtcHosts File succeeded with invalid value!")
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}
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}
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func TestEtcHostsWrittenToDisk(t *testing.T) {
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dir, err := ioutil.TempDir(os.TempDir(), "coreos-cloudinit-")
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if err != nil {
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t.Fatalf("Unable to create tempdir: %v", err)
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}
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defer os.RemoveAll(dir)
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eh := EtcHosts("localhost")
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f, err := eh.File(dir)
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if err != nil {
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t.Fatalf("Error calling File on EtcHosts: %v", err)
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}
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if f == nil {
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t.Fatalf("manageEtcHosts returned nil file unexpectedly")
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}
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f.Path = path.Join(dir, f.Path)
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if err := system.WriteFile(f); err != nil {
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t.Fatalf("Error writing EtcHosts: %v", err)
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}
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fullPath := path.Join(dir, "etc", "hosts")
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fi, err := os.Stat(fullPath)
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if err != nil {
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t.Fatalf("Unable to stat file: %v", err)
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}
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if fi.Mode() != os.FileMode(0644) {
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t.Errorf("File has incorrect mode: %v", fi.Mode())
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}
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contents, err := ioutil.ReadFile(fullPath)
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if err != nil {
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t.Fatalf("Unable to read expected file: %v", err)
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}
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hostname, err := os.Hostname()
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if err != nil {
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t.Fatalf("Unable to read OS hostname: %v", err)
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}
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expect := fmt.Sprintf("%s %s\n", DefaultIpv4Address, hostname)
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if string(contents) != expect {
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t.Fatalf("File has incorrect contents")
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}
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}
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