func (s *hookManagerSuite) TestHookTask(c *C) {
// Register a handler generator for the "test-hook" hook
var calledContext *hookstate.Context
mockHandler := hooktest.NewMockHandler()
mockHandlerGenerator := func(context *hookstate.Context) hookstate.Handler {
calledContext = context
return mockHandler
}
s.manager.Register(regexp.MustCompile("test-hook"), mockHandlerGenerator)
s.manager.Ensure()
s.manager.Wait()
s.state.Lock()
defer s.state.Unlock()
c.Assert(calledContext, NotNil, Commentf("Expected handler generator to be called with a valid context"))
c.Check(calledContext.SnapName(), Equals, "test-snap")
c.Check(calledContext.SnapRevision(), Equals, snap.R(1))
c.Check(calledContext.HookName(), Equals, "test-hook")
c.Check(s.command.Calls(), DeepEquals, [][]string{{
"snap", "run", "--hook", "test-hook", "-r", "1", "test-snap",
}})
c.Check(mockHandler.BeforeCalled, Equals, true)
c.Check(mockHandler.DoneCalled, Equals, true)
c.Check(mockHandler.ErrorCalled, Equals, false)
c.Check(s.task.Kind(), Equals, "run-hook")
c.Check(s.task.Status(), Equals, state.DoneStatus)
c.Check(s.change.Status(), Equals, state.DoneStatus)
}
// ContextTransaction retrieves the transaction cached within the context (and
// creates one if it hasn't already been cached).
func ContextTransaction(context *hookstate.Context) *Transaction {
// Check for one already cached
transaction, ok := context.Cached(cachedTransaction{}).(*Transaction)
if ok {
return transaction
}
// It wasn't already cached, so create and cache a new one
transaction = NewTransaction(context.State())
context.OnDone(func() error {
transaction.Commit()
return nil
})
context.Cache(cachedTransaction{}, transaction)
return transaction
}
func getTransaction(context *hookstate.Context) (*configstate.Transaction, error) {
context.Lock()
defer context.Unlock()
// Extract the transaction from the context. If none, make one and cache it
// in the context.
transaction, ok := context.Cached(cachedTransaction{}).(*configstate.Transaction)
if !ok {
var err error
transaction, err = configstate.NewTransaction(context.State())
if err != nil {
return nil, fmt.Errorf("cannot create transaction: %s", err)
}
context.OnDone(func() error {
transaction.Commit()
return nil
})
context.Cache(cachedTransaction{}, transaction)
}
return transaction, nil
}