func (*OpenSuite) TestNewFromNameWithInvalidEnvironConfig(c *gc.C) {
	store := configstore.NewMem()

	e, err := environs.NewFromName("erewhemos", store)
	c.Assert(err, gc.Equals, environs.ErrNotBootstrapped)
	c.Assert(e, gc.IsNil)
}

func (c *DestroyEnvironmentCommand) Run(ctx *cmd.Context) (result error) {
	store, err := configstore.Default()
	if err != nil {
		return fmt.Errorf("cannot open environment info storage: %v", err)
	}
	environ, err := environs.NewFromName(c.envName, store)
	if err != nil {
		if environs.IsEmptyConfig(err) {
			// Delete the .jenv file and call it done.
			ctx.Infof("removing empty environment file")
			return environs.DestroyInfo(c.envName, store)
		}
		return err
	}
	if !c.assumeYes {
		fmt.Fprintf(ctx.Stdout, destroyEnvMsg, environ.Name(), environ.Config().Type())

		scanner := bufio.NewScanner(ctx.Stdin)
		scanner.Scan()
		err := scanner.Err()
		if err != nil && err != io.EOF {
			return fmt.Errorf("Environment destruction aborted: %s", err)
		}
		answer := strings.ToLower(scanner.Text())
		if answer != "y" && answer != "yes" {
			return errors.New("environment destruction aborted")
		}
	}
	// If --force is supplied, then don't attempt to use the API.
	// This is necessary to destroy broken environments, where the
	// API server is inaccessible or faulty.
	if !c.force {
		defer func() {
			if result == nil {
				return
			}
			logger.Errorf(`failed to destroy environment %q
        
If the environment is unusable, then you may run

    juju destroy-environment --force

to forcefully destroy the environment. Upon doing so, review
your environment provider console for any resources that need
to be cleaned up.

`, c.envName)
		}()
		apiclient, err := juju.NewAPIClientFromName(c.envName)
		if err != nil {
			return fmt.Errorf("cannot connect to API: %v", err)
		}
		defer apiclient.Close()
		err = apiclient.DestroyEnvironment()
		if err != nil && !params.IsCodeNotImplemented(err) {
			return fmt.Errorf("destroying environment: %v", err)
		}
	}
	return environs.Destroy(environ, store)
}

func assertEnvironNotDestroyed(c *gc.C, env environs.Environ, store configstore.Storage) {
	info, err := store.ReadInfo(env.Config().Name())
	c.Assert(err, gc.IsNil)
	c.Assert(info.Initialized(), jc.IsTrue)

	_, err = environs.NewFromName(env.Config().Name(), store)
	c.Assert(err, gc.IsNil)
}

func (*OpenSuite) TestNewFromName(c *gc.C) {
	store := configstore.NewMem()
	ctx := testing.Context(c)
	e, err := environs.PrepareFromName("erewhemos", ctx, store)
	c.Assert(err, gc.IsNil)

	e, err = environs.NewFromName("erewhemos", store)
	c.Assert(err, gc.IsNil)
	c.Assert(e.Config().Name(), gc.Equals, "erewhemos")
}

// NewConnFromName returns a Conn pointing at the environName environment, or the
// default environment if not specified.
func NewConnFromName(environName string) (*Conn, error) {
	store, err := configstore.Default()
	if err != nil {
		return nil, err
	}
	environ, err := environs.NewFromName(environName, store)
	if err != nil {
		return nil, err
	}
	return NewConn(environ)
}

func (*OpenSuite) TestNewFromNameWithInvalidInfo(c *gc.C) {
	store := configstore.NewMem()
	cfg, _, err := environs.ConfigForName("erewhemos", store)
	c.Assert(err, gc.IsNil)
	info := store.CreateInfo("erewhemos")

	// The configuration from environments.yaml is invalid
	// because it doesn't contain the state-id attribute which
	// the dummy environment adds at Prepare time.
	info.SetBootstrapConfig(cfg.AllAttrs())
	err = info.Write()
	c.Assert(err, gc.IsNil)

	e, err := environs.NewFromName("erewhemos", store)
	c.Assert(err, gc.ErrorMatches, "environment is not prepared")
	c.Assert(e, gc.IsNil)
}

func (s *BootstrapSuite) run(c *gc.C, test bootstrapTest) (restore gitjujutesting.Restorer) {
	// Create home with dummy provider and remove all
	// of its envtools.
	env := resetJujuHome(c, "peckham")

	// Although we're testing PrepareEndpointsForCaching interactions
	// separately in the juju package, here we just ensure it gets
	// called with the right arguments.
	prepareCalled := false
	addrConnectedTo := "localhost:17070"
	restore = gitjujutesting.PatchValue(
		&prepareEndpointsForCaching,
		func(info configstore.EnvironInfo, hps [][]network.HostPort, addr network.HostPort) (_, _ []string, _ bool) {
			prepareCalled = true
			addrs, hosts, changed := juju.PrepareEndpointsForCaching(info, hps, addr)
			// Because we're bootstrapping the addresses will always
			// change, as there's no .jenv file saved yet.
			c.Assert(changed, jc.IsTrue)
			return addrs, hosts, changed
		},
	)

	if test.version != "" {
		useVersion := strings.Replace(test.version, "%LTS%", config.LatestLtsSeries(), 1)
		origVersion := version.Current
		version.Current = version.MustParseBinary(useVersion)
		restore = restore.Add(func() {
			version.Current = origVersion
		})
	}

	if test.hostArch != "" {
		origArch := arch.HostArch
		arch.HostArch = func() string {
			return test.hostArch
		}
		restore = restore.Add(func() {
			arch.HostArch = origArch
		})
	}

	// Run command and check for uploads.
	opc, errc := cmdtesting.RunCommand(cmdtesting.NullContext(c), envcmd.Wrap(new(BootstrapCommand)), test.args...)
	// Check for remaining operations/errors.
	if test.err != "" {
		err := <-errc
		c.Assert(err, gc.NotNil)
		stripped := strings.Replace(err.Error(), "\n", "", -1)
		c.Check(stripped, gc.Matches, test.err)
		return restore
	}
	if !c.Check(<-errc, gc.IsNil) {
		return restore
	}

	opBootstrap := (<-opc).(dummy.OpBootstrap)
	c.Check(opBootstrap.Env, gc.Equals, "peckham")
	c.Check(opBootstrap.Args.Constraints, gc.DeepEquals, test.constraints)
	c.Check(opBootstrap.Args.Placement, gc.Equals, test.placement)

	opFinalizeBootstrap := (<-opc).(dummy.OpFinalizeBootstrap)
	c.Check(opFinalizeBootstrap.Env, gc.Equals, "peckham")
	c.Check(opFinalizeBootstrap.InstanceConfig.Tools, gc.NotNil)
	if test.upload != "" {
		c.Check(opFinalizeBootstrap.InstanceConfig.Tools.Version.String(), gc.Equals, test.upload)
	}

	store, err := configstore.Default()
	c.Assert(err, jc.ErrorIsNil)
	// Check a CA cert/key was generated by reloading the environment.
	env, err = environs.NewFromName("peckham", store)
	c.Assert(err, jc.ErrorIsNil)
	_, hasCert := env.Config().CACert()
	c.Check(hasCert, jc.IsTrue)
	_, hasKey := env.Config().CAPrivateKey()
	c.Check(hasKey, jc.IsTrue)
	info, err := store.ReadInfo("peckham")
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(info, gc.NotNil)
	c.Assert(prepareCalled, jc.IsTrue)
	c.Assert(info.APIEndpoint().Addresses, gc.DeepEquals, []string{addrConnectedTo})
	return restore
}

func (test bootstrapTest) run(c *gc.C) {
	// Create home with dummy provider and remove all
	// of its envtools.
	env := resetJujuHome(c)

	if test.version != "" {
		useVersion := strings.Replace(test.version, "%LTS%", config.LatestLtsSeries(), 1)
		origVersion := version.Current
		version.Current = version.MustParseBinary(useVersion)
		defer func() { version.Current = origVersion }()
	}

	if test.hostArch != "" {
		origVersion := arch.HostArch
		arch.HostArch = func() string {
			return test.hostArch
		}
		defer func() { arch.HostArch = origVersion }()
	}

	if test.upload == "" {
		usefulVersion := version.Current
		usefulVersion.Series = config.PreferredSeries(env.Config())
		envtesting.AssertUploadFakeToolsVersions(c, env.Storage(), usefulVersion)
	}

	// Run command and check for uploads.
	opc, errc := cmdtesting.RunCommand(cmdtesting.NullContext(c), envcmd.Wrap(new(BootstrapCommand)), test.args...)
	// Check for remaining operations/errors.
	if test.err != "" {
		err := <-errc
		stripped := strings.Replace(err.Error(), "\n", "", -1)
		c.Check(stripped, gc.Matches, test.err)
		return
	}
	if !c.Check(<-errc, gc.IsNil) {
		return
	}

	opPutBootstrapVerifyFile := (<-opc).(dummy.OpPutFile)
	c.Check(opPutBootstrapVerifyFile.Env, gc.Equals, "peckham")
	c.Check(opPutBootstrapVerifyFile.FileName, gc.Equals, environs.VerificationFilename)

	opBootstrap := (<-opc).(dummy.OpBootstrap)
	c.Check(opBootstrap.Env, gc.Equals, "peckham")
	c.Check(opBootstrap.Args.Constraints, gc.DeepEquals, test.constraints)
	c.Check(opBootstrap.Args.Placement, gc.Equals, test.placement)
	c.Check(opBootstrap.Args.KeepBroken, gc.Equals, test.keepBroken)

	opFinalizeBootstrap := (<-opc).(dummy.OpFinalizeBootstrap)
	c.Check(opFinalizeBootstrap.Env, gc.Equals, "peckham")
	c.Check(opFinalizeBootstrap.MachineConfig.Tools, gc.NotNil)
	if test.upload != "" {
		c.Check(opFinalizeBootstrap.MachineConfig.Tools.Version.String(), gc.Equals, test.upload)
	}

	store, err := configstore.Default()
	c.Assert(err, gc.IsNil)
	// Check a CA cert/key was generated by reloading the environment.
	env, err = environs.NewFromName("peckham", store)
	c.Assert(err, gc.IsNil)
	_, hasCert := env.Config().CACert()
	c.Check(hasCert, gc.Equals, true)
	_, hasKey := env.Config().CAPrivateKey()
	c.Check(hasKey, gc.Equals, true)
	info, err := store.ReadInfo("peckham")
	c.Assert(err, gc.IsNil)
	c.Assert(info, gc.NotNil)
	c.Assert(info.APIEndpoint().Addresses, gc.DeepEquals, []string{"localhost:17070"})
}

func (test bootstrapTest) run(c *gc.C) {
	// Create home with dummy provider and remove all
	// of its envtools.
	env := resetJujuHome(c)

	if test.version != "" {
		useVersion := strings.Replace(test.version, "%LTS%", config.LatestLtsSeries(), 1)
		origVersion := version.Current
		version.Current = version.MustParseBinary(useVersion)
		defer func() { version.Current = origVersion }()
	}

	if test.hostArch != "" {
		origVersion := arch.HostArch
		arch.HostArch = func() string {
			return test.hostArch
		}
		defer func() { arch.HostArch = origVersion }()
	}

	uploadCount := len(test.uploads)
	if uploadCount == 0 {
		usefulVersion := version.Current
		usefulVersion.Series = config.PreferredSeries(env.Config())
		envtesting.AssertUploadFakeToolsVersions(c, env.Storage(), usefulVersion)
	}

	// Run command and check for uploads.
	opc, errc := runCommand(nullContext(c), envcmd.Wrap(new(BootstrapCommand)), test.args...)
	// Check for remaining operations/errors.
	if test.err != "" {
		err := <-errc
		stripped := strings.Replace(err.Error(), "\n", "", -1)
		c.Check(stripped, gc.Matches, test.err)
		return
	}
	if !c.Check(<-errc, gc.IsNil) {
		return
	}

	if uploadCount > 0 {
		for i := 0; i < uploadCount; i++ {
			c.Check((<-opc).(dummy.OpPutFile).Env, gc.Equals, "peckham")
		}
		list, err := envtools.FindTools(
			env, version.Current.Major, version.Current.Minor, coretools.Filter{}, envtools.DoNotAllowRetry)
		c.Check(err, gc.IsNil)
		c.Logf("found: " + list.String())
		urls := list.URLs()
		c.Check(urls, gc.HasLen, len(test.uploads))
		for _, v := range test.uploads {
			v := strings.Replace(v, "%LTS%", config.LatestLtsSeries(), 1)
			c.Logf("seeking: " + v)
			vers := version.MustParseBinary(v)
			_, found := urls[vers]
			c.Check(found, gc.Equals, true)
		}
	}
	if len(test.uploads) > 0 {
		indexFile := (<-opc).(dummy.OpPutFile)
		c.Check(indexFile.FileName, gc.Equals, "tools/streams/v1/index.json")
		productFile := (<-opc).(dummy.OpPutFile)
		c.Check(productFile.FileName, gc.Equals, "tools/streams/v1/com.ubuntu.juju:released:tools.json")
	}
	opPutBootstrapVerifyFile := (<-opc).(dummy.OpPutFile)
	c.Check(opPutBootstrapVerifyFile.Env, gc.Equals, "peckham")
	c.Check(opPutBootstrapVerifyFile.FileName, gc.Equals, environs.VerificationFilename)

	opPutBootstrapInitFile := (<-opc).(dummy.OpPutFile)
	c.Check(opPutBootstrapInitFile.Env, gc.Equals, "peckham")
	c.Check(opPutBootstrapInitFile.FileName, gc.Equals, "provider-state")

	opBootstrap := (<-opc).(dummy.OpBootstrap)
	c.Check(opBootstrap.Env, gc.Equals, "peckham")
	c.Check(opBootstrap.Args.Constraints, gc.DeepEquals, test.constraints)
	c.Check(opBootstrap.Args.Placement, gc.Equals, test.placement)

	store, err := configstore.Default()
	c.Assert(err, gc.IsNil)
	// Check a CA cert/key was generated by reloading the environment.
	env, err = environs.NewFromName("peckham", store)
	c.Assert(err, gc.IsNil)
	_, hasCert := env.Config().CACert()
	c.Check(hasCert, gc.Equals, true)
	_, hasKey := env.Config().CAPrivateKey()
	c.Check(hasKey, gc.Equals, true)
}