func (ovs *overlordSuite) TestEnsureLoopMediatedEnsureBeforeInEnsure(c *C) {
restoreIntv := overlord.MockEnsureInterval(10 * time.Minute)
defer restoreIntv()
o, err := overlord.New()
c.Assert(err, IsNil)
ensure := func(s *state.State) error {
s.EnsureBefore(0)
return nil
}
witness := &witnessManager{
state: o.State(),
expectedEnsure: 2,
ensureCalled: make(chan struct{}),
ensureCallack: ensure,
}
se := o.Engine()
se.AddManager(witness)
o.Loop()
defer o.Stop()
se.State().EnsureBefore(0)
select {
case <-witness.ensureCalled:
case <-time.After(2 * time.Second):
c.Fatal("Ensure calls not happening")
}
}
func (ovs *overlordSuite) TestTrivialSettle(c *C) {
restoreIntv := overlord.MockEnsureInterval(1 * time.Minute)
defer restoreIntv()
o, err := overlord.New()
c.Assert(err, IsNil)
se := o.Engine()
s := se.State()
rm1 := newRunnerManager(s)
se.AddManager(rm1)
defer o.Engine().Stop()
s.Lock()
defer s.Unlock()
chg := s.NewChange("chg", "...")
t1 := s.NewTask("runMgr1", "1...")
chg.AddTask(t1)
s.Unlock()
o.Settle()
s.Lock()
c.Check(t1.Status(), Equals, state.DoneStatus)
var v int
err = s.Get("runMgr1Mark", &v)
c.Check(err, IsNil)
}
func (ovs *overlordSuite) TestEnsureLoopRunAndStop(c *C) {
restoreIntv := overlord.MockEnsureInterval(10 * time.Millisecond)
defer restoreIntv()
o, err := overlord.New()
c.Assert(err, IsNil)
witness := &witnessManager{
state: o.State(),
expectedEnsure: 2,
ensureCalled: make(chan struct{}),
}
o.Engine().AddManager(witness)
o.Loop()
defer o.Stop()
t0 := time.Now()
select {
case <-witness.ensureCalled:
case <-time.After(2 * time.Second):
c.Fatal("Ensure calls not happening")
}
c.Check(time.Since(t0) >= 20*time.Millisecond, Equals, true)
err = o.Stop()
c.Assert(err, IsNil)
}
func (ovs *overlordSuite) TestSettleExplicitEnsureBefore(c *C) {
restoreIntv := overlord.MockEnsureInterval(1 * time.Minute)
defer restoreIntv()
o, err := overlord.New()
c.Assert(err, IsNil)
se := o.Engine()
s := se.State()
rm1 := newRunnerManager(s)
rm1.ensureCallback = func() {
s.Lock()
defer s.Unlock()
v := 0
s.Get("ensureCount", &v)
s.Set("ensureCount", v+1)
}
se.AddManager(rm1)
defer o.Engine().Stop()
s.Lock()
defer s.Unlock()
chg := s.NewChange("chg", "...")
t := s.NewTask("runMgrEnsureBefore", "...")
chg.AddTask(t)
s.Unlock()
o.Settle()
s.Lock()
c.Check(t.Status(), Equals, state.DoneStatus)
var v int
err = s.Get("ensureCount", &v)
c.Check(err, IsNil)
c.Check(v, Equals, 2)
}