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// Copyright 2013 Canonical Ltd.
// Licensed under the AGPLv3, see LICENCE file for details.
package minunitsworker_test
import (
stdtesting "testing"
"time"
"github.com/juju/loggo"
gc "launchpad.net/gocheck"
"launchpad.net/juju-core/juju/testing"
coretesting "launchpad.net/juju-core/testing"
"launchpad.net/juju-core/worker"
"launchpad.net/juju-core/worker/minunitsworker"
)
var logger = loggo.GetLogger("juju.worker.minunitsworker_test")
func TestPackage(t *stdtesting.T) {
coretesting.MgoTestPackage(t)
}
type minUnitsWorkerSuite struct {
testing.JujuConnSuite
}
var _ = gc.Suite(&minUnitsWorkerSuite{})
var _ worker.StringsWatchHandler = (*minunitsworker.MinUnitsWorker)(nil)
func (s *minUnitsWorkerSuite) TestMinUnitsWorker(c *gc.C) {
mu := minunitsworker.NewMinUnitsWorker(s.State)
defer func() { c.Assert(worker.Stop(mu), gc.IsNil) }()
// Set up services and units for later use.
wordpress := s.AddTestingService(c, "wordpress", s.AddTestingCharm(c, "wordpress"))
mysql := s.AddTestingService(c, "mysql", s.AddTestingCharm(c, "mysql"))
unit, err := wordpress.AddUnit()
c.Assert(err, gc.IsNil)
_, err = wordpress.AddUnit()
c.Assert(err, gc.IsNil)
// Set up minimum units for services.
err = wordpress.SetMinUnits(3)
c.Assert(err, gc.IsNil)
err = mysql.SetMinUnits(2)
c.Assert(err, gc.IsNil)
// Remove a unit for a service.
err = unit.Destroy()
c.Assert(err, gc.IsNil)
timeout := time.After(coretesting.LongWait)
for {
s.State.StartSync()
select {
case <-time.After(coretesting.ShortWait):
wordpressUnits, err := wordpress.AllUnits()
c.Assert(err, gc.IsNil)
mysqlUnits, err := mysql.AllUnits()
c.Assert(err, gc.IsNil)
wordpressCount := len(wordpressUnits)
mysqlCount := len(mysqlUnits)
if wordpressCount == 3 && mysqlCount == 2 {
return
}
logger.Infof("wordpress units: %d; mysql units: %d", wordpressCount, mysqlCount)
case <-timeout:
c.Fatalf("timed out waiting for minunits events")
}
}
}
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