func (s *configFunctionalSuite) TestUsingTCPRemote(c *gc.C) {
	if s.client == nil {
		c.Skip("LXD not running locally")
	}
	// We can't just pass the testingCert as part of the Local connection,
	// because Validate() doesn't like Local remotes that have
	// Certificates.
	lxdclient.PatchGenerateCertificate(&s.CleanupSuite, testingCert, testingKey)

	cfg := lxdclient.Config{
		Namespace: "my-ns",
		Remote:    lxdclient.Local,
	}
	nonlocal, err := cfg.UsingTCPRemote()
	c.Assert(err, jc.ErrorIsNil)

	checkValidRemote(c, &nonlocal.Remote)
	c.Check(nonlocal, jc.DeepEquals, lxdclient.Config{
		Namespace: "my-ns",
		Remote: lxdclient.Remote{
			Name:          lxdclient.Local.Name,
			Host:          nonlocal.Remote.Host,
			Cert:          nonlocal.Remote.Cert,
			Protocol:      lxdclient.LXDProtocol,
			ServerPEMCert: nonlocal.Remote.ServerPEMCert,
		},
	})
	c.Check(nonlocal.Remote.Host, gc.Not(gc.Equals), "")
	c.Check(nonlocal.Remote.Cert.CertPEM, gc.Not(gc.Equals), "")
	c.Check(nonlocal.Remote.Cert.KeyPEM, gc.Not(gc.Equals), "")
	c.Check(nonlocal.Remote.ServerPEMCert, gc.Not(gc.Equals), "")
	// TODO(ericsnow) Check that the server has the certs.
}

func (s *configSuite) TestValidateOnlyRemote(c *gc.C) {
	cfg := lxdclient.Config{
		Remote: s.remote,
	}
	err := cfg.Validate()

	c.Check(err, jc.ErrorIsNil)
}

func (s *configSuite) TestValidateMissingRemote(c *gc.C) {
	cfg := lxdclient.Config{
		Namespace: "my-ns",
	}
	err := cfg.Validate()

	c.Check(err, jc.Satisfies, errors.IsNotValid)
}

func (s *configSuite) TestWithDefaultsMissingRemote(c *gc.C) {
	cfg := lxdclient.Config{}
	updated, err := cfg.WithDefaults()
	c.Assert(err, jc.ErrorIsNil)

	c.Check(updated, jc.DeepEquals, lxdclient.Config{
		Remote: lxdclient.Local,
	})
}

func (s *configSuite) TestWithDefaultsOkay(c *gc.C) {
	cfg := lxdclient.Config{
		Remote: s.remote,
	}
	updated, err := cfg.WithDefaults()
	c.Assert(err, jc.ErrorIsNil)

	c.Check(updated, jc.DeepEquals, cfg)
}

func (s *configSuite) TestValidateOkay(c *gc.C) {
	cfg := lxdclient.Config{
		Namespace: "my-ns",
		Remote:    s.remote,
	}
	err := cfg.Validate()

	c.Check(err, jc.ErrorIsNil)
}

func (s *configSuite) TestUsingTCPRemoteNoop(c *gc.C) {
	cfg := lxdclient.Config{
		Namespace: "my-ns",
		Remote:    s.remote,
	}
	nonlocal, err := cfg.UsingTCPRemote()
	c.Assert(err, jc.ErrorIsNil)

	c.Check(nonlocal, jc.DeepEquals, cfg)
}

func (s *configSuite) TestWithDefaultsMissingStream(c *gc.C) {
	cfg := lxdclient.Config{
		Namespace: "my-ns",
		Remote:    s.remote,
	}
	updated, err := cfg.WithDefaults()
	c.Assert(err, jc.ErrorIsNil)

	c.Check(updated, jc.DeepEquals, lxdclient.Config{
		Namespace: "my-ns",
		Remote:    s.remote,
	})
}

func ConnectLocal() (*lxdclient.Client, error) {
	cfg := lxdclient.Config{
		Remote: lxdclient.Local,
	}

	cfg, err := cfg.WithDefaults()
	if err != nil {
		return nil, errors.Trace(err)
	}

	client, err := lxdclient.Connect(cfg, false)
	if err != nil {
		return nil, errors.Trace(err)
	}

	return client, nil
}

func ConnectLocal(namespace string) (*lxdclient.Client, error) {
	cfg := lxdclient.Config{
		Namespace: namespace,
		Remote:    lxdclient.Local,
	}

	cfg, err := cfg.WithDefaults()
	if err != nil {
		return nil, errors.Trace(err)
	}

	client, err := lxdclient.Connect(cfg)
	if err != nil {
		return nil, errors.Trace(err)
	}

	return client, nil
}

// clientConfig builds a LXD Config based on the env config and returns it.
func (c *environConfig) clientConfig() (lxdclient.Config, error) {
	remote := lxdclient.Remote{
		Name:          "juju-remote",
		Host:          c.remoteURL(),
		ServerPEMCert: c.serverPEMCert(),
	}
	if c.clientCert() != "" {
		certPEM := []byte(c.clientCert())
		keyPEM := []byte(c.clientKey())
		cert := lxdclient.NewCert(certPEM, keyPEM)
		cert.Name = fmt.Sprintf("juju cert for env %q", c.Name())
		remote.Cert = &cert
	}

	cfg := lxdclient.Config{
		Namespace: c.namespace(),
		Remote:    remote,
	}
	cfg, err := cfg.WithDefaults()
	if err != nil {
		return cfg, errors.Trace(err)
	}
	return cfg, nil
}

func (s *configSuite) TestValidateZeroValue(c *gc.C) {
	var cfg lxdclient.Config
	err := cfg.Validate()

	c.Check(err, jc.Satisfies, errors.IsNotValid)
}