func (s *serviceSuite) TestClientServiceUpdateSetMinUnits(c *gc.C) {
service := s.AddTestingService(c, "dummy", s.AddTestingCharm(c, "dummy"))
// Set minimum units for the service.
minUnits := 2
args := params.ServiceUpdate{
ServiceName: "dummy",
MinUnits: &minUnits,
}
err := s.serviceApi.ServiceUpdate(args)
c.Assert(err, jc.ErrorIsNil)
// Ensure the minimum number of units has been set.
c.Assert(service.Refresh(), gc.IsNil)
c.Assert(service.MinUnits(), gc.Equals, minUnits)
}
func (s *serviceSuite) TestClientServiceUpdateAllParams(c *gc.C) {
s.deployServiceForUpdateTests(c)
curl, _ := s.UploadCharm(c, "precise/wordpress-3", "wordpress")
err := service.AddCharmWithAuthorization(s.State, params.AddCharmWithAuthorization{URL: curl.String()})
c.Assert(err, jc.ErrorIsNil)
// Update all the service attributes.
minUnits := 3
cons, err := constraints.Parse("mem=4096", "cpu-cores=2")
c.Assert(err, jc.ErrorIsNil)
args := params.ServiceUpdate{
ServiceName: "service",
CharmUrl: curl.String(),
ForceCharmUrl: true,
MinUnits: &minUnits,
SettingsStrings: map[string]string{"blog-title": "string-title"},
SettingsYAML: "service:\n blog-title: yaml-title\n",
Constraints: &cons,
}
err = s.serviceApi.ServiceUpdate(args)
c.Assert(err, jc.ErrorIsNil)
// Ensure the service has been correctly updated.
service, err := s.State.Service("service")
c.Assert(err, jc.ErrorIsNil)
// Check the charm.
ch, force, err := service.Charm()
c.Assert(err, jc.ErrorIsNil)
c.Assert(ch.URL().String(), gc.Equals, curl.String())
c.Assert(force, jc.IsTrue)
// Check the minimum number of units.
c.Assert(service.MinUnits(), gc.Equals, minUnits)
// Check the settings: also ensure the YAML settings take precedence
// over strings ones.
expectedSettings := charm.Settings{"blog-title": "yaml-title"}
obtainedSettings, err := service.ConfigSettings()
c.Assert(err, jc.ErrorIsNil)
c.Assert(obtainedSettings, gc.DeepEquals, expectedSettings)
// Check the constraints.
obtainedConstraints, err := service.Constraints()
c.Assert(err, jc.ErrorIsNil)
c.Assert(obtainedConstraints, gc.DeepEquals, cons)
}
func (s *serviceSuite) TestClientServiceUpdateSetMinUnitsError(c *gc.C) {
service := s.AddTestingService(c, "dummy", s.AddTestingCharm(c, "dummy"))
// Set a negative minimum number of units for the service.
minUnits := -1
args := params.ServiceUpdate{
ServiceName: "dummy",
MinUnits: &minUnits,
}
err := s.serviceApi.ServiceUpdate(args)
c.Assert(err, gc.ErrorMatches,
`cannot set minimum units for service "dummy": cannot set a negative minimum number of units`)
// Ensure the minimum number of units has not been set.
c.Assert(service.Refresh(), gc.IsNil)
c.Assert(service.MinUnits(), gc.Equals, 0)
}