Golang testing.NullContext函数代码示例

func (s *destroyEnvSuite) TestDestroyEnvironmentCommandBroken(c *gc.C) {
	oldinfo, err := s.ConfigStore.ReadInfo("dummyenv")
	c.Assert(err, gc.IsNil)
	bootstrapConfig := oldinfo.BootstrapConfig()
	apiEndpoint := oldinfo.APIEndpoint()
	apiCredentials := oldinfo.APICredentials()
	err = oldinfo.Destroy()
	c.Assert(err, gc.IsNil)
	newinfo := s.ConfigStore.CreateInfo("dummyenv")

	bootstrapConfig["broken"] = "Destroy"
	newinfo.SetBootstrapConfig(bootstrapConfig)
	newinfo.SetAPIEndpoint(apiEndpoint)
	newinfo.SetAPICredentials(apiCredentials)
	err = newinfo.Write()
	c.Assert(err, gc.IsNil)

	// Prepare the environment so we can destroy it.
	_, err = environs.PrepareFromName("dummyenv", cmdtesting.NullContext(c), s.ConfigStore)
	c.Assert(err, gc.IsNil)

	// destroy with broken environment
	opc, errc := cmdtesting.RunCommand(cmdtesting.NullContext(c), new(DestroyEnvironmentCommand), "dummyenv", "--yes")
	op, ok := (<-opc).(dummy.OpDestroy)
	c.Assert(ok, jc.IsTrue)
	c.Assert(op.Error, gc.ErrorMatches, "dummy.Destroy is broken")
	c.Check(<-errc, gc.Equals, op.Error)
	c.Check(<-opc, gc.IsNil)
}

func (s *destroyEnvSuite) TestDestroyEnvironmentCommandEFlag(c *gc.C) {
	// Prepare the environment so we can destroy it.
	_, err := environs.PrepareFromName("dummyenv", cmdtesting.NullContext(c), s.ConfigStore)
	c.Assert(err, gc.IsNil)

	// check that either environment or the flag is mandatory
	opc, errc := cmdtesting.RunCommand(cmdtesting.NullContext(c), new(DestroyEnvironmentCommand))
	c.Check(<-errc, gc.Equals, NoEnvironmentError)

	// We don't allow them to supply both entries at the same time
	opc, errc = cmdtesting.RunCommand(cmdtesting.NullContext(c), new(DestroyEnvironmentCommand), "-e", "dummyenv", "dummyenv", "--yes")
	c.Check(<-errc, gc.Equals, DoubleEnvironmentError)
	// We treat --environment the same way
	opc, errc = cmdtesting.RunCommand(cmdtesting.NullContext(c), new(DestroyEnvironmentCommand), "--environment", "dummyenv", "dummyenv", "--yes")
	c.Check(<-errc, gc.Equals, DoubleEnvironmentError)

	// destroy using the -e flag
	opc, errc = cmdtesting.RunCommand(cmdtesting.NullContext(c), new(DestroyEnvironmentCommand), "-e", "dummyenv", "--yes")
	c.Check(<-errc, gc.IsNil)
	c.Check((<-opc).(dummy.OpDestroy).Env, gc.Equals, "dummyenv")

	// Verify that the environment information has been removed.
	_, err = s.ConfigStore.ReadInfo("dummyenv")
	c.Assert(err, jc.Satisfies, errors.IsNotFound)
}

func (s *destroyEnvSuite) checkDestroyEnvironment(c *gc.C, blocked, force bool) {
	//Setup environment
	envName := "dummyenv"
	s.startEnvironment(c, envName)
	if blocked {
		s.BlockDestroyEnvironment(c, "checkDestroyEnvironment")
	}
	opc := make(chan dummy.Operation)
	errc := make(chan error)
	if force {
		opc, errc = cmdtesting.RunCommand(cmdtesting.NullContext(c), newDestroyEnvironmentCommand(), envName, "--yes", "--force")
	} else {
		opc, errc = cmdtesting.RunCommand(cmdtesting.NullContext(c), newDestroyEnvironmentCommand(), envName, "--yes")
	}
	if force || !blocked {
		c.Check(<-errc, gc.IsNil)
		c.Check((<-opc).(dummy.OpDestroy).Env, gc.Equals, envName)
		// Verify that the environment information has been removed.
		_, err := s.ConfigStore.ReadInfo(envName)
		c.Assert(err, jc.Satisfies, errors.IsNotFound)
	} else {
		c.Check(<-errc, gc.Not(gc.IsNil))
		c.Check((<-opc), gc.IsNil)
		// Verify that the environment information has not been removed.
		_, err := s.ConfigStore.ReadInfo(envName)
		c.Assert(err, jc.ErrorIsNil)
	}
}

func (s *destroyEnvSuite) TestDestroyEnvironmentCommandConfirmation(c *gc.C) {
	var stdin, stdout bytes.Buffer
	ctx, err := cmd.DefaultContext()
	c.Assert(err, gc.IsNil)
	ctx.Stdout = &stdout
	ctx.Stdin = &stdin

	// Prepare the environment so we can destroy it.
	env, err := environs.PrepareFromName("dummyenv", cmdtesting.NullContext(c), s.ConfigStore)
	c.Assert(err, gc.IsNil)

	assertEnvironNotDestroyed(c, env, s.ConfigStore)

	// Ensure confirmation is requested if "-y" is not specified.
	stdin.WriteString("n")
	opc, errc := cmdtesting.RunCommand(ctx, new(DestroyEnvironmentCommand), "dummyenv")
	c.Check(<-errc, gc.ErrorMatches, "environment destruction aborted")
	c.Check(<-opc, gc.IsNil)
	c.Check(stdout.String(), gc.Matches, "WARNING!.*dummyenv.*\\(type: dummy\\)(.|\n)*")
	assertEnvironNotDestroyed(c, env, s.ConfigStore)

	// EOF on stdin: equivalent to answering no.
	stdin.Reset()
	stdout.Reset()
	opc, errc = cmdtesting.RunCommand(ctx, new(DestroyEnvironmentCommand), "dummyenv")
	c.Check(<-opc, gc.IsNil)
	c.Check(<-errc, gc.ErrorMatches, "environment destruction aborted")
	assertEnvironNotDestroyed(c, env, s.ConfigStore)

	// "--yes" passed: no confirmation request.
	stdin.Reset()
	stdout.Reset()
	opc, errc = cmdtesting.RunCommand(ctx, new(DestroyEnvironmentCommand), "dummyenv", "--yes")
	c.Check(<-errc, gc.IsNil)
	c.Check((<-opc).(dummy.OpDestroy).Env, gc.Equals, "dummyenv")
	c.Check(stdout.String(), gc.Equals, "")
	assertEnvironDestroyed(c, env, s.ConfigStore)

	// Any of casing of "y" and "yes" will confirm.
	for _, answer := range []string{"y", "Y", "yes", "YES"} {
		// Prepare the environment so we can destroy it.
		s.Reset(c)
		env, err := environs.PrepareFromName("dummyenv", cmdtesting.NullContext(c), s.ConfigStore)
		c.Assert(err, gc.IsNil)

		stdin.Reset()
		stdout.Reset()
		stdin.WriteString(answer)
		opc, errc = cmdtesting.RunCommand(ctx, new(DestroyEnvironmentCommand), "dummyenv")
		c.Check(<-errc, gc.IsNil)
		c.Check((<-opc).(dummy.OpDestroy).Env, gc.Equals, "dummyenv")
		c.Check(stdout.String(), gc.Matches, "WARNING!.*dummyenv.*\\(type: dummy\\)(.|\n)*")
		assertEnvironDestroyed(c, env, s.ConfigStore)
	}
}

func (s *BootstrapSuite) TestAutoUploadOnlyForDev(c *gc.C) {
	s.setupAutoUploadTest(c, "1.8.3", "precise")
	_, errc := cmdtesting.RunCommand(cmdtesting.NullContext(c), envcmd.Wrap(new(BootstrapCommand)))
	err := <-errc
	c.Assert(err, gc.ErrorMatches,
		"failed to bootstrap environment: Juju cannot bootstrap because no tools are available for your environment(.|\n)*")
}

func (s *destroyEnvSuite) TestDestroyEnvironmentCommandTwiceOnNonStateServer(c *gc.C) {
	s.setupHostedEnviron(c, "dummy-non-state-server")
	oldInfo, err := s.ConfigStore.ReadInfo("dummy-non-state-server")
	c.Assert(err, jc.ErrorIsNil)

	opc, errc := cmdtesting.RunCommand(cmdtesting.NullContext(c), newDestroyEnvironmentCommand(), "dummy-non-state-server", "--yes")
	c.Check(<-errc, gc.IsNil)
	c.Check(<-opc, gc.IsNil)

	_, err = s.ConfigStore.ReadInfo("dummy-non-state-server")
	c.Assert(err, jc.Satisfies, errors.IsNotFound)

	// Simluate another client calling destroy on the same environment. This
	// client will have a local cache of the environ info, so write it back out.
	info := s.ConfigStore.CreateInfo("dummy-non-state-server")
	info.SetAPIEndpoint(oldInfo.APIEndpoint())
	info.SetAPICredentials(oldInfo.APICredentials())
	err = info.Write()
	c.Assert(err, jc.ErrorIsNil)

	// Call destroy again.
	context, err := coretesting.RunCommand(c, newDestroyEnvironmentCommand(), "dummy-non-state-server", "--yes")
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(coretesting.Stderr(context), gc.Equals, "environment not found, removing config file\n")

	// Check that the client's cached info has been removed.
	_, err = s.ConfigStore.ReadInfo("dummy-non-state-server")
	c.Assert(err, jc.Satisfies, errors.IsNotFound)
}

func (s *BootstrapSuite) TestBootstrapKeepBroken(c *gc.C) {
	resetJujuHome(c, "devenv")
	s.patchVersion(c)

	opc, errc := cmdtesting.RunCommand(cmdtesting.NullContext(c), newBootstrapCommand(), "-e", "brokenenv", "--keep-broken", "--auto-upgrade")
	err := <-errc
	c.Assert(err, gc.ErrorMatches, "failed to bootstrap environment: dummy.Bootstrap is broken")
	done := false
	for !done {
		select {
		case op, ok := <-opc:
			if !ok {
				done = true
				break
			}
			switch op.(type) {
			case dummy.OpDestroy:
				c.Error("unexpected call to env.Destroy")
				break
			}
		default:
			break
		}
	}
}

func (s *BootstrapSuite) TestBootstrapKeepBroken(c *gc.C) {
	resetJujuHome(c, "devenv")
	devVersion := version.Current
	// Force a dev version by having a non zero build number.
	// This is because we have not uploaded any tools and auto
	// upload is only enabled for dev versions.
	devVersion.Build = 1234
	s.PatchValue(&version.Current, devVersion)
	opc, errc := cmdtesting.RunCommand(cmdtesting.NullContext(c), envcmd.Wrap(new(BootstrapCommand)), "-e", "brokenenv", "--keep-broken")
	err := <-errc
	c.Assert(err, gc.ErrorMatches, "failed to bootstrap environment: dummy.Bootstrap is broken")
	done := false
	for !done {
		select {
		case op, ok := <-opc:
			if !ok {
				done = true
				break
			}
			switch op.(type) {
			case dummy.OpDestroy:
				c.Error("unexpected call to env.Destroy")
				break
			}
		default:
			break
		}
	}
}

func (s *BootstrapSuite) TestBootstrapDestroy(c *gc.C) {
	resetJujuHome(c, "devenv")
	devVersion := version.Current
	// Force a dev version by having a non zero build number.
	// This is because we have not uploaded any tools and auto
	// upload is only enabled for dev versions.
	devVersion.Build = 1234
	s.PatchValue(&version.Current, devVersion)
	opc, errc := cmdtesting.RunCommand(cmdtesting.NullContext(c), envcmd.Wrap(new(BootstrapCommand)), "-e", "brokenenv")
	err := <-errc
	c.Assert(err, gc.ErrorMatches, "failed to bootstrap environment: dummy.Bootstrap is broken")
	var opDestroy *dummy.OpDestroy
	for opDestroy == nil {
		select {
		case op := <-opc:
			switch op := op.(type) {
			case dummy.OpDestroy:
				opDestroy = &op
			}
		default:
			c.Error("expected call to env.Destroy")
			return
		}
	}
	c.Assert(opDestroy.Error, gc.ErrorMatches, "dummy.Destroy is broken")
}

func (s *controllerSuite) TestWaitForAgentAPIReadyWaitsForSpaceDiscovery(c *gc.C) {
	s.mockBlockClient.discoveringSpacesError = 2
	cmd := &modelcmd.ModelCommandBase{}
	cmd.SetClientStore(jujuclienttesting.NewMemStore())
	err := WaitForAgentInitialisation(cmdtesting.NullContext(c), cmd, "controller", "default")
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(s.mockBlockClient.discoveringSpacesError, gc.Equals, 0)
}

func (s *destroyEnvSuite) TestDestroyEnvironmentCommand(c *gc.C) {
	// Prepare the environment so we can destroy it.
	_, err := environs.PrepareFromName("dummyenv", cmdtesting.NullContext(c), s.ConfigStore)
	c.Assert(err, gc.IsNil)

	// check environment is mandatory
	opc, errc := cmdtesting.RunCommand(cmdtesting.NullContext(c), new(DestroyEnvironmentCommand))
	c.Check(<-errc, gc.Equals, NoEnvironmentError)

	// normal destroy
	opc, errc = cmdtesting.RunCommand(cmdtesting.NullContext(c), new(DestroyEnvironmentCommand), "dummyenv", "--yes")
	c.Check(<-errc, gc.IsNil)
	c.Check((<-opc).(dummy.OpDestroy).Env, gc.Equals, "dummyenv")

	// Verify that the environment information has been removed.
	_, err = s.ConfigStore.ReadInfo("dummyenv")
	c.Assert(err, jc.Satisfies, errors.IsNotFound)
}

func (s *destroyEnvSuite) TestForceDestroyEnvironmentCommandOnNonStateServerNoConfimFails(c *gc.C) {
	s.setupHostedEnviron(c, "dummy-non-state-server")
	opc, errc := cmdtesting.RunCommand(cmdtesting.NullContext(c), newDestroyEnvironmentCommand(), "dummy-non-state-server", "--force")
	c.Check(<-errc, gc.ErrorMatches, "cannot force destroy environment without bootstrap information")
	c.Check(<-opc, gc.IsNil)

	serverInfo, err := s.ConfigStore.ReadInfo("dummy-non-state-server")
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(serverInfo, gc.Not(gc.IsNil))
}

func (s *destroyEnvSuite) TestDestroyEnvironmentCommandNonStateServer(c *gc.C) {
	s.setupHostedEnviron(c, "dummy-non-state-server")
	opc, errc := cmdtesting.RunCommand(cmdtesting.NullContext(c), newDestroyEnvironmentCommand(), "dummy-non-state-server", "--yes")
	c.Check(<-errc, gc.IsNil)
	// Check that there are no operations on the provider, we do not want to call
	// Destroy on it.
	c.Check(<-opc, gc.IsNil)

	_, err := s.ConfigStore.ReadInfo("dummy-non-state-server")
	c.Assert(err, jc.Satisfies, errors.IsNotFound)
}

func (s *controllerSuite) TestWaitForAgentAPIReadyRetriesWithOpenEOFErr(c *gc.C) {
	s.mockBlockClient.numRetries = 0
	s.mockBlockClient.retryCount = 0
	s.mockBlockClient.loginError = io.EOF
	cmd := &modelcmd.ModelCommandBase{}
	cmd.SetClientStore(jujuclienttesting.NewMemStore())
	err := WaitForAgentInitialisation(cmdtesting.NullContext(c), cmd, "controller", "default")
	c.Check(err, jc.ErrorIsNil)

	c.Check(s.mockBlockClient.retryCount, gc.Equals, 1)
}

func (s *controllerSuite) TestWaitForAgentAPIReadyStopsRetriesWithOpenErr(c *gc.C) {
	s.mockBlockClient.numRetries = 0
	s.mockBlockClient.retryCount = 0
	s.mockBlockClient.loginError = errors.NewUnauthorized(nil, "")
	cmd := &modelcmd.ModelCommandBase{}
	cmd.SetClientStore(jujuclienttesting.NewMemStore())
	err := WaitForAgentInitialisation(cmdtesting.NullContext(c), cmd, "controller", "default")
	c.Check(err, jc.Satisfies, errors.IsUnauthorized)

	c.Check(s.mockBlockClient.retryCount, gc.Equals, 0)
}