launchpad.net/~rogpeppe/juju-core/500-errgo-fix@v0.0.0-20140213181702-000000002356/state/apiserver/logger/logger_test.go

// Copyright 2013 Canonical Ltd.
// Licensed under the AGPLv3, see LICENCE file for details.

package logger_test

import (
	gc "launchpad.net/gocheck"

	jujutesting "launchpad.net/juju-core/juju/testing"
	"launchpad.net/juju-core/state"
	"launchpad.net/juju-core/state/api/params"
	"launchpad.net/juju-core/state/apiserver/common"
	"launchpad.net/juju-core/state/apiserver/logger"
	apiservertesting "launchpad.net/juju-core/state/apiserver/testing"
	statetesting "launchpad.net/juju-core/state/testing"
)

type loggerSuite struct {
	jujutesting.JujuConnSuite

	// These are raw State objects. Use them for setup and assertions, but
	// should never be touched by the API calls themselves
	rawMachine *state.Machine
	logger     *logger.LoggerAPI
	resources  *common.Resources
	authorizer apiservertesting.FakeAuthorizer
}

var _ = gc.Suite(&loggerSuite{})

func (s *loggerSuite) SetUpTest(c *gc.C) {
	s.JujuConnSuite.SetUpTest(c)
	s.resources = common.NewResources()
	s.AddCleanup(func(_ *gc.C) { s.resources.StopAll() })

	// Create a machine to work with
	var err error
	s.rawMachine, err = s.State.AddMachine("quantal", state.JobHostUnits)
	c.Assert(err, gc.IsNil)

	// The default auth is as the machine agent
	s.authorizer = apiservertesting.FakeAuthorizer{
		Tag:          s.rawMachine.Tag(),
		LoggedIn:     true,
		MachineAgent: true,
	}
	s.logger, err = logger.NewLoggerAPI(s.State, s.resources, s.authorizer)
	c.Assert(err, gc.IsNil)
}

func (s *loggerSuite) TestNewLoggerAPIRefusesNonAgent(c *gc.C) {
	// We aren't even a machine agent
	anAuthorizer := s.authorizer
	anAuthorizer.MachineAgent = false
	endPoint, err := logger.NewLoggerAPI(s.State, s.resources, anAuthorizer)
	c.Assert(endPoint, gc.IsNil)
	c.Assert(err, gc.ErrorMatches, "permission denied")
}

func (s *loggerSuite) TestNewLoggerAPIAcceptsUnitAgent(c *gc.C) {
	// We aren't even a machine agent
	anAuthorizer := s.authorizer
	anAuthorizer.UnitAgent = true
	anAuthorizer.MachineAgent = false
	endPoint, err := logger.NewLoggerAPI(s.State, s.resources, anAuthorizer)
	c.Assert(err, gc.IsNil)
	c.Assert(endPoint, gc.NotNil)
}

func (s *loggerSuite) TestWatchLoggingConfigNothing(c *gc.C) {
	// Not an error to watch nothing
	results := s.logger.WatchLoggingConfig(params.Entities{})
	c.Assert(results.Results, gc.HasLen, 0)
}

func (s *loggerSuite) setLoggingConfig(c *gc.C, loggingConfig string) {
	err := statetesting.UpdateConfig(s.State, map[string]interface{}{"logging-config": loggingConfig})
	c.Assert(err, gc.IsNil)
	envConfig, err := s.State.EnvironConfig()
	c.Assert(err, gc.IsNil)
	c.Assert(envConfig.LoggingConfig(), gc.Equals, loggingConfig)
}

func (s *loggerSuite) TestWatchLoggingConfig(c *gc.C) {
	args := params.Entities{
		Entities: []params.Entity{{Tag: s.rawMachine.Tag()}},
	}
	results := s.logger.WatchLoggingConfig(args)
	c.Assert(results.Results, gc.HasLen, 1)
	c.Assert(results.Results[0].NotifyWatcherId, gc.Not(gc.Equals), "")
	c.Assert(results.Results[0].Error, gc.IsNil)
	resource := s.resources.Get(results.Results[0].NotifyWatcherId)
	c.Assert(resource, gc.NotNil)

	w := resource.(state.NotifyWatcher)
	wc := statetesting.NewNotifyWatcherC(c, s.State, w)
	wc.AssertNoChange()

	newLoggingConfig := "<root>=WARN;juju.log.test=DEBUG;unit=INFO"
	s.setLoggingConfig(c, newLoggingConfig)

	wc.AssertOneChange()
	statetesting.AssertStop(c, w)
	wc.AssertClosed()
}

func (s *loggerSuite) TestWatchLoggingConfigRefusesWrongAgent(c *gc.C) {
	// We are a machine agent, but not the one we are trying to track
	args := params.Entities{
		Entities: []params.Entity{{Tag: "machine-12354"}},
	}
	results := s.logger.WatchLoggingConfig(args)
	// It is not an error to make the request, but the specific item is rejected
	c.Assert(results.Results, gc.HasLen, 1)
	c.Assert(results.Results[0].NotifyWatcherId, gc.Equals, "")
	c.Assert(results.Results[0].Error, gc.DeepEquals, apiservertesting.ErrUnauthorized)
}

func (s *loggerSuite) TestLoggingConfigForNoone(c *gc.C) {
	// Not an error to request nothing, dumb, but not an error.
	results := s.logger.LoggingConfig(params.Entities{})
	c.Assert(results.Results, gc.HasLen, 0)
}

func (s *loggerSuite) TestLoggingConfigRefusesWrongAgent(c *gc.C) {
	args := params.Entities{
		Entities: []params.Entity{{Tag: "machine-12354"}},
	}
	results := s.logger.LoggingConfig(args)
	c.Assert(results.Results, gc.HasLen, 1)
	result := results.Results[0]
	c.Assert(result.Error, gc.DeepEquals, apiservertesting.ErrUnauthorized)
}

func (s *loggerSuite) TestLoggingConfigForAgent(c *gc.C) {
	newLoggingConfig := "<root>=WARN;juju.log.test=DEBUG;unit=INFO"
	s.setLoggingConfig(c, newLoggingConfig)

	args := params.Entities{
		Entities: []params.Entity{{Tag: s.rawMachine.Tag()}},
	}
	results := s.logger.LoggingConfig(args)
	c.Assert(results.Results, gc.HasLen, 1)
	result := results.Results[0]
	c.Assert(result.Error, gc.IsNil)
	c.Assert(result.Result, gc.Equals, newLoggingConfig)
}