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package main
import (
. "launchpad.net/gocheck"
"launchpad.net/juju-core/cmd"
"launchpad.net/juju-core/environs/agent"
"launchpad.net/juju-core/state"
"time"
)
type UnitSuite struct {
agentSuite
}
var _ = Suite(&UnitSuite{})
// primeAgent creates a unit, and sets up the unit agent's directory.
// It returns the new unit and the agent's configuration.
func (s *UnitSuite) primeAgent(c *C) (*state.Unit, *agent.Conf, *state.Tools) {
svc, err := s.State.AddService("wordpress", s.AddTestingCharm(c, "wordpress"))
c.Assert(err, IsNil)
unit, err := svc.AddUnit()
c.Assert(err, IsNil)
err = unit.SetMongoPassword("unit-password")
c.Assert(err, IsNil)
conf, tools := s.agentSuite.primeAgent(c, unit.EntityName(), "unit-password")
return unit, conf, tools
}
func (s *UnitSuite) newAgent(c *C, unit *state.Unit) *UnitAgent {
a := &UnitAgent{}
s.initAgent(c, a, "--unit-name", unit.Name())
return a
}
func (s *UnitSuite) TestParseSuccess(c *C) {
create := func() (cmd.Command, *AgentConf) {
a := &UnitAgent{}
return a, &a.Conf
}
uc := CheckAgentCommand(c, create, []string{"--unit-name", "w0rd-pre55/1"})
c.Assert(uc.(*UnitAgent).UnitName, Equals, "w0rd-pre55/1")
}
func (s *UnitSuite) TestParseMissing(c *C) {
uc := &UnitAgent{}
err := ParseAgentCommand(uc, []string{})
c.Assert(err, ErrorMatches, "--unit-name option must be set")
}
func (s *UnitSuite) TestParseNonsense(c *C) {
for _, args := range [][]string{
{"--unit-name", "wordpress"},
{"--unit-name", "wordpress/seventeen"},
{"--unit-name", "wordpress/-32"},
{"--unit-name", "wordpress/wild/9"},
{"--unit-name", "20/20"},
} {
err := ParseAgentCommand(&UnitAgent{}, args)
c.Assert(err, ErrorMatches, `--unit-name option expects "<service>/<n>" argument`)
}
}
func (s *UnitSuite) TestParseUnknown(c *C) {
uc := &UnitAgent{}
err := ParseAgentCommand(uc, []string{"--unit-name", "wordpress/1", "thundering typhoons"})
c.Assert(err, ErrorMatches, `unrecognized args: \["thundering typhoons"\]`)
}
func (s *UnitSuite) TestRunStop(c *C) {
unit, conf, _ := s.primeAgent(c)
a := s.newAgent(c, unit)
ctx, reset := patchDeployContext(c, conf.StateInfo, conf.DataDir)
defer reset()
go func() { c.Check(a.Run(nil), IsNil) }()
defer func() { c.Check(a.Stop(), IsNil) }()
timeout := time.After(5 * time.Second)
waitStarted:
for {
select {
case <-timeout:
c.Fatalf("no activity detected")
case <-time.After(50 * time.Millisecond):
err := unit.Refresh()
c.Assert(err, IsNil)
st, info, err := unit.Status()
c.Assert(err, IsNil)
switch st {
case state.UnitPending, state.UnitInstalled:
c.Logf("waiting...")
continue
case state.UnitStarted:
c.Logf("started!")
break waitStarted
case state.UnitDown:
s.State.StartSync()
c.Logf("unit is still down")
default:
c.Fatalf("unexpected status %s %s", st, info)
}
}
}
// Check no subordinates have been deployed.
ctx.waitDeployed(c)
// Add a relation with a subordinate service and wait for the subordinate
// to be deployed...
_, err := s.State.AddService("logging", s.AddTestingCharm(c, "logging"))
c.Assert(err, IsNil)
eps, err := s.State.InferEndpoints([]string{"wordpress", "logging"})
c.Assert(err, IsNil)
_, err = s.State.AddRelation(eps...)
c.Assert(err, IsNil)
ctx.waitDeployed(c, "logging/0")
// ...then kill the subordinate and wait for it to be recalled and removed.
logging0, err := s.State.Unit("logging/0")
c.Assert(err, IsNil)
err = logging0.EnsureDead()
c.Assert(err, IsNil)
ctx.waitDeployed(c)
err = logging0.Refresh()
c.Assert(state.IsNotFound(err), Equals, true)
}
func (s *UnitSuite) TestUpgrade(c *C) {
unit, _, currentTools := s.primeAgent(c)
a := s.newAgent(c, unit)
s.testUpgrade(c, a, currentTools)
}
func (s *UnitSuite) TestWithDeadUnit(c *C) {
unit, _, _ := s.primeAgent(c)
err := unit.EnsureDead()
c.Assert(err, IsNil)
a := s.newAgent(c, unit)
err = runWithTimeout(a)
c.Assert(err, IsNil)
// try again when the unit has been removed.
err = unit.Remove()
c.Assert(err, IsNil)
a = s.newAgent(c, unit)
err = runWithTimeout(a)
c.Assert(err, IsNil)
}
func (s *UnitSuite) TestChangePasswordChanging(c *C) {
unit, _, _ := s.primeAgent(c)
newAgent := func() runner {
return s.newAgent(c, unit)
}
s.testAgentPasswordChanging(c, unit, newAgent)
}
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