// ParseVolumeAttachmentId parses a string as a volume attachment ID,
// returning the machine and volume components.
func ParseVolumeAttachmentId(id string) (names.MachineTag, names.VolumeTag, error) {
fields := strings.SplitN(id, ":", 2)
if len(fields) != 2 || !names.IsValidMachine(fields[0]) || !names.IsValidVolume(fields[1]) {
return names.MachineTag{}, names.VolumeTag{}, errors.Errorf("invalid volume attachment ID %q", id)
}
machineTag := names.NewMachineTag(fields[0])
volumeTag := names.NewVolumeTag(fields[1])
return machineTag, volumeTag, nil
}
func assertVolumeNameInvalid(c *gc.C, name string) {
c.Assert(names.IsValidVolume(name), gc.Equals, false)
testVolumeTag := func() { names.NewVolumeTag(name) }
expect := fmt.Sprintf("%q is not a valid volume ID", name)
c.Assert(testVolumeTag, gc.PanicMatches, expect)
}
func assertVolumeNameValid(c *gc.C, name string) {
c.Assert(names.IsValidVolume(name), gc.Equals, true)
names.NewVolumeTag(name)
}