cloudinit/datasource/configdrive_test.go
Alex Crawford 4eedca26e9 configdrive: Use the EC2 metadata over OpenStack
Standardize on specific EC2 and OpenStack versions and add tests.
2014-08-04 10:18:29 -07:00

115 lines
2.4 KiB
Go

package datasource
import (
"os"
"testing"
)
type mockFilesystem []string
func (m mockFilesystem) readFile(filename string) ([]byte, error) {
for _, file := range m {
if file == filename {
return []byte(filename), nil
}
}
return nil, os.ErrNotExist
}
func TestCDFetchMetadata(t *testing.T) {
for _, tt := range []struct {
root string
filename string
files mockFilesystem
}{
{
"/",
"",
mockFilesystem{},
},
{
"/",
"/ec2/2009-04-04/meta_data.json",
mockFilesystem([]string{"/ec2/2009-04-04/meta_data.json"}),
},
{
"/media/configdrive",
"/media/configdrive/ec2/2009-04-04/meta_data.json",
mockFilesystem([]string{"/media/configdrive/ec2/2009-04-04/meta_data.json"}),
},
} {
cd := configDrive{tt.root, tt.files.readFile}
filename, err := cd.FetchMetadata()
if err != nil {
t.Fatalf("bad error for %q: want %q, got %q", tt, nil, err)
}
if string(filename) != tt.filename {
t.Fatalf("bad path for %q: want %q, got %q", tt, tt.filename, filename)
}
}
}
func TestCDFetchUserdata(t *testing.T) {
for _, tt := range []struct {
root string
filename string
files mockFilesystem
}{
{
"/",
"",
mockFilesystem{},
},
{
"/",
"/ec2/2009-04-04/user_data",
mockFilesystem([]string{"/ec2/2009-04-04/user_data"}),
},
{
"/",
"/openstack/latest/user_data",
mockFilesystem([]string{"/openstack/latest/user_data"}),
},
{
"/",
"/ec2/2009-04-04/user_data",
mockFilesystem([]string{"/openstack/latest/user_data", "/ec2/2009-04-04/user_data"}),
},
{
"/media/configdrive",
"/media/configdrive/ec2/2009-04-04/user_data",
mockFilesystem([]string{"/media/configdrive/ec2/2009-04-04/user_data"}),
},
} {
cd := configDrive{tt.root, tt.files.readFile}
filename, err := cd.FetchUserdata()
if err != nil {
t.Fatalf("bad error for %q: want %q, got %q", tt, nil, err)
}
if string(filename) != tt.filename {
t.Fatalf("bad path for %q: want %q, got %q", tt, tt.filename, filename)
}
}
}
func TestCDConfigRoot(t *testing.T) {
for _, tt := range []struct {
root string
configRoot string
}{
{
"/",
"/openstack/latest",
},
{
"/media/configdrive",
"/media/configdrive/openstack/latest",
},
} {
cd := configDrive{tt.root, nil}
if configRoot := cd.ConfigRoot(); configRoot != tt.configRoot {
t.Fatalf("bad config root for %q: want %q, got %q", tt, tt.configRoot, configRoot)
}
}
}