func (s *FilesystemStateSuite) TestSetFilesystemInfoImmutable(c *gc.C) {
_, u, storageTag := s.setupSingleStorage(c, "filesystem", "rootfs")
err := s.State.AssignUnit(u, state.AssignCleanEmpty)
c.Assert(err, jc.ErrorIsNil)
filesystem := s.storageInstanceFilesystem(c, storageTag)
filesystemTag := filesystem.FilesystemTag()
assignedMachineId, err := u.AssignedMachineId()
c.Assert(err, jc.ErrorIsNil)
machine, err := s.State.Machine(assignedMachineId)
c.Assert(err, jc.ErrorIsNil)
err = machine.SetProvisioned("inst-id", "fake_nonce", nil)
c.Assert(err, jc.ErrorIsNil)
filesystemInfoSet := state.FilesystemInfo{Size: 123, FilesystemId: "fs-id"}
err = s.State.SetFilesystemInfo(filesystem.FilesystemTag(), filesystemInfoSet)
c.Assert(err, jc.ErrorIsNil)
// The first call to SetFilesystemInfo takes the pool name from
// the params; the second does not, but it must not change
// either. Callers are expected to get the existing info and
// update it, leaving immutable values intact.
err = s.State.SetFilesystemInfo(filesystem.FilesystemTag(), filesystemInfoSet)
c.Assert(err, gc.ErrorMatches, `cannot set info for filesystem "0/0": cannot change pool from "rootfs" to ""`)
filesystemInfoSet.Pool = "rootfs"
s.assertFilesystemInfo(c, filesystemTag, filesystemInfoSet)
}
func (s *FilesystemStateSuite) TestFilesystemInfo(c *gc.C) {
_, u, storageTag := s.setupSingleStorage(c, "filesystem", "rootfs")
err := s.State.AssignUnit(u, state.AssignCleanEmpty)
c.Assert(err, jc.ErrorIsNil)
assignedMachineId, err := u.AssignedMachineId()
c.Assert(err, jc.ErrorIsNil)
machineTag := names.NewMachineTag(assignedMachineId)
filesystem := s.storageInstanceFilesystem(c, storageTag)
filesystemTag := filesystem.FilesystemTag()
s.assertFilesystemUnprovisioned(c, filesystemTag)
s.assertFilesystemAttachmentUnprovisioned(c, machineTag, filesystemTag)
machine, err := s.State.Machine(assignedMachineId)
c.Assert(err, jc.ErrorIsNil)
err = machine.SetProvisioned("inst-id", "fake_nonce", nil)
c.Assert(err, jc.ErrorIsNil)
filesystemInfo := state.FilesystemInfo{FilesystemId: "fs-123", Size: 456}
err = s.State.SetFilesystemInfo(filesystemTag, filesystemInfo)
c.Assert(err, jc.ErrorIsNil)
filesystemInfo.Pool = "rootfs" // taken from params
s.assertFilesystemInfo(c, filesystemTag, filesystemInfo)
s.assertFilesystemAttachmentUnprovisioned(c, machineTag, filesystemTag)
filesystemAttachmentInfo := state.FilesystemAttachmentInfo{MountPoint: "/srv"}
err = s.State.SetFilesystemAttachmentInfo(machineTag, filesystemTag, filesystemAttachmentInfo)
c.Assert(err, jc.ErrorIsNil)
s.assertFilesystemAttachmentInfo(c, machineTag, filesystemTag, filesystemAttachmentInfo)
}