func (s *patch4Suite) TestPatch4OnRefreshes(c *C) {
restorer := patch.MockLevel(4)
defer restorer()
r, err := os.Open(dirs.SnapStateFile)
c.Assert(err, IsNil)
defer r.Close()
st, err := state.ReadState(nil, r)
c.Assert(err, IsNil)
func() {
st.Lock()
defer st.Unlock()
task := st.Task("16")
c.Assert(task, NotNil)
// simulate that the task was running (but the change
// is not fully done yet)
task.SetStatus(state.DoneStatus)
snapsup, err := patch.Patch4TaskSnapSetup(task)
c.Assert(err, IsNil)
c.Check(snapsup.Flags.Revert(), Equals, false)
var had bool
var idx int
c.Check(task.Get("had-candidate", &had), IsNil)
c.Check(had, Equals, false)
c.Check(task.Get("old-candidate-index", &idx), Equals, state.ErrNoState)
c.Check(len(task.Change().Tasks()), Equals, 7)
}()
// go from patch level 3 -> 4
err = patch.Apply(st)
c.Assert(err, IsNil)
st.Lock()
defer st.Unlock()
task := st.Task("16")
c.Assert(task, NotNil)
snapsup, err := patch.Patch4TaskSnapSetup(task)
c.Assert(err, IsNil)
c.Check(snapsup.Flags.Revert(), Equals, false)
var had bool
var idx int
c.Check(task.Get("had-candidate", &had), Equals, state.ErrNoState)
c.Check(task.Get("old-candidate-index", &idx), IsNil)
c.Check(idx, Equals, 1)
// we added cleanup
c.Check(len(task.Change().Tasks()), Equals, 7+1)
}
// This test simulates a link-snap task that is scheduled but has not
// run yet. It has no "had-candidate" data set yet.
func (s *patch4Suite) TestPatch4OnRefreshesNoHadCandidateYet(c *C) {
restorer := patch.MockLevel(4)
defer restorer()
r, err := os.Open(dirs.SnapStateFile)
c.Assert(err, IsNil)
defer r.Close()
st, err := state.ReadState(nil, r)
c.Assert(err, IsNil)
func() {
st.Lock()
defer st.Unlock()
task := st.Task("16")
c.Assert(task, NotNil)
// its ready to run but has not run yet
task.Clear("had-candidate")
task.SetStatus(state.DoStatus)
ss, err := patch.Patch4TaskSnapSetup(task)
c.Assert(err, IsNil)
c.Check(ss.Flags.Revert(), Equals, false)
var had bool
var idx int
c.Check(task.Get("had-candidate", &had), Equals, state.ErrNoState)
c.Check(task.Get("old-candidate-index", &idx), Equals, state.ErrNoState)
c.Check(len(task.Change().Tasks()), Equals, 7)
}()
// go from patch level 3 -> 4
err = patch.Apply(st)
c.Assert(err, IsNil)
st.Lock()
defer st.Unlock()
task := st.Task("16")
c.Assert(task, NotNil)
ss, err := patch.Patch4TaskSnapSetup(task)
c.Assert(err, IsNil)
c.Check(ss.Flags.Revert(), Equals, false)
var had bool
var idx int
c.Check(task.Get("had-candidate", &had), Equals, state.ErrNoState)
c.Check(task.Get("old-candidate-index", &idx), IsNil)
c.Check(idx, Equals, 1)
// we added cleanup
c.Check(len(task.Change().Tasks()), Equals, 7+1)
}