func init() {
	Describe("renderedJobApplier", func() {
		var (
			jobsBc                 *fakebc.FakeBundleCollection
			jobSupervisor          *fakejobsuper.FakeJobSupervisor
			packageApplierProvider *fakepa.FakePackageApplierProvider
			blobstore              *fakeblob.FakeBlobstore
			compressor             *fakecmd.FakeCompressor
			fs                     *fakesys.FakeFileSystem
			applier                JobApplier
		)

		BeforeEach(func() {
			jobsBc = fakebc.NewFakeBundleCollection()
			jobSupervisor = fakejobsuper.NewFakeJobSupervisor()
			packageApplierProvider = fakepa.NewFakePackageApplierProvider()
			blobstore = fakeblob.NewFakeBlobstore()
			fs = fakesys.NewFakeFileSystem()
			compressor = fakecmd.NewFakeCompressor()
			logger := boshlog.NewLogger(boshlog.LevelNone)
			applier = NewRenderedJobApplier(
				jobsBc,
				jobSupervisor,
				packageApplierProvider,
				blobstore,
				compressor,
				fs,
				logger,
			)
		})

		Describe("Prepare & Apply", func() {
			var (
				job    models.Job
				bundle *fakebc.FakeBundle
			)

			BeforeEach(func() {
				job, bundle = buildJob(jobsBc)
			})

			ItInstallsJob := func(act func() error) {
				It("returns error when installing job fails", func() {
					bundle.InstallError = errors.New("fake-install-error")

					err := act()
					Expect(err).To(HaveOccurred())
					Expect(err.Error()).To(ContainSubstring("fake-install-error"))
				})

				It("downloads and later cleans up downloaded job template blob", func() {
					blobstore.GetFileName = "/fake-blobstore-file-name"

					err := act()
					Expect(err).ToNot(HaveOccurred())
					Expect(blobstore.GetBlobIDs[0]).To(Equal("fake-blobstore-id"))
					Expect(blobstore.GetFingerprints[0]).To(Equal("fake-blob-sha1"))

					// downloaded file is cleaned up
					Expect(blobstore.CleanUpFileName).To(Equal("/fake-blobstore-file-name"))
				})

				It("returns error when downloading job template blob fails", func() {
					blobstore.GetError = errors.New("fake-get-error")

					err := act()
					Expect(err).To(HaveOccurred())
					Expect(err.Error()).To(ContainSubstring("fake-get-error"))
				})

				It("decompresses job template blob to tmp path and later cleans it up", func() {
					fs.TempDirDir = "/fake-tmp-dir"
					blobstore.GetFileName = "/fake-blobstore-file-name"

					var tmpDirExistsBeforeInstall bool

					bundle.InstallCallBack = func() {
						tmpDirExistsBeforeInstall = true
					}

					err := act()
					Expect(err).ToNot(HaveOccurred())

					Expect(compressor.DecompressFileToDirTarballPaths[0]).To(Equal("/fake-blobstore-file-name"))
					Expect(compressor.DecompressFileToDirDirs[0]).To(Equal("/fake-tmp-dir"))

					// tmp dir exists before bundle install
					Expect(tmpDirExistsBeforeInstall).To(BeTrue())

					// tmp dir is cleaned up after install
					Expect(fs.FileExists(fs.TempDirDir)).To(BeFalse())
				})

				It("returns error when temporary directory creation fails", func() {
					fs.TempDirError = errors.New("fake-filesystem-tempdir-error")

					err := act()
					Expect(err).To(HaveOccurred())
					Expect(err.Error()).To(ContainSubstring("fake-filesystem-tempdir-error"))
				})
//.........这里部分代码省略.........

			Expect(err).ToNot(HaveOccurred())

			defer file.Close()

			handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
				io.Copy(w, file)
				Expect(r.Method).To(Equal("GET"))
				Expect(r.URL.Path).To(Equal("/_status2"))
				Expect(r.URL.Query().Get("format")).To(Equal("xml"))
			})

			ts := httptest.NewServer(handler)

			defer ts.Close()

			logger := boshlog.NewLogger(boshlog.LevelNone)
			client := NewHTTPClient(
				ts.Listener.Addr().String(),
				"fake-user",
				"fake-pass",
				http.DefaultClient,
				1*time.Millisecond,
				logger,
			)

			status, err := client.Status()
			Expect(err).ToNot(HaveOccurred())

			expectedServices := []Service{
				Service{Monitored: true, Status: "running"},
				Service{Monitored: false, Status: "unknown"},

func init() {
	Describe("concreteManagerProvider", func() {
		Describe("NewManager", func() {
			It("returns manager with tasks.json as its tasks path", func() {
				logger := boshlog.NewLogger(boshlog.LevelNone)
				fs := fakesys.NewFakeFileSystem()

				taskInfo := boshtask.TaskInfo{
					TaskID:  "fake-task-id",
					Method:  "fake-method",
					Payload: []byte("fake-payload"),
				}

				manager := boshtask.NewManagerProvider().NewManager(logger, fs, "/dir/path")
				err := manager.AddTaskInfo(taskInfo)
				Expect(err).ToNot(HaveOccurred())

				// Check expected file location with another manager
				otherManager := boshtask.NewManager(logger, fs, "/dir/path/tasks.json")

				taskInfos, err := otherManager.GetTaskInfos()
				Expect(err).ToNot(HaveOccurred())
				Expect(taskInfos).To(Equal([]boshtask.TaskInfo{taskInfo}))
			})
		})
	})

	Describe("concreteManager", func() {
		var (
			logger  boshlog.Logger
			fs      *fakesys.FakeFileSystem
			manager boshtask.Manager
		)

		BeforeEach(func() {
			logger = boshlog.NewLogger(boshlog.LevelNone)
			fs = fakesys.NewFakeFileSystem()
			manager = boshtask.NewManager(logger, fs, "/dir/path")
		})

		Describe("GetTaskInfos", func() {
			It("can load multiple tasks", func() {
				err := manager.AddTaskInfo(boshtask.TaskInfo{
					TaskID:  "fake-task-id-1",
					Method:  "fake-method-1",
					Payload: []byte("fake-payload-1"),
				})
				Expect(err).ToNot(HaveOccurred())

				err = manager.AddTaskInfo(boshtask.TaskInfo{
					TaskID:  "fake-task-id-2",
					Method:  "fake-method-2",
					Payload: []byte("fake-payload-2"),
				})
				Expect(err).ToNot(HaveOccurred())

				// Make sure we are not getting cached copy of taskInfos
				reloadedManager := boshtask.NewManager(logger, fs, "/dir/path")

				taskInfos, err := reloadedManager.GetTaskInfos()
				Expect(err).ToNot(HaveOccurred())
				Expect(taskInfos).To(Equal([]boshtask.TaskInfo{
					boshtask.TaskInfo{
						TaskID:  "fake-task-id-1",
						Method:  "fake-method-1",
						Payload: []byte("fake-payload-1"),
					},
					boshtask.TaskInfo{
						TaskID:  "fake-task-id-2",
						Method:  "fake-method-2",
						Payload: []byte("fake-payload-2"),
					},
				}))
			})

			It("succeeds when there is no tasks (file is not present)", func() {
				taskInfos, err := manager.GetTaskInfos()
				Expect(err).ToNot(HaveOccurred())
				Expect(len(taskInfos)).To(Equal(0))
			})

			It("returns an error when failing to load tasks from the file that exists", func() {
				err := manager.AddTaskInfo(boshtask.TaskInfo{
					TaskID:  "fake-task-id-2",
					Method:  "fake-method-2",
					Payload: []byte("fake-payload-2"),
				})
				Expect(err).ToNot(HaveOccurred())

				fs.ReadFileError = errors.New("fake-read-error")

				_, err = manager.GetTaskInfos()
				Expect(err).To(HaveOccurred())
				Expect(err.Error()).To(ContainSubstring("fake-read-error"))
			})
		})

		Describe("AddTaskInfo", func() {
			It("can add multiple tasks", func() {
				err := manager.AddTaskInfo(boshtask.TaskInfo{
//.........这里部分代码省略.........

func init() {
	Describe("concretePackageApplier", func() {
		var (
			packagesBc *fakebc.FakeBundleCollection
			blobstore  *fakeblob.FakeBlobstore
			compressor *fakecmd.FakeCompressor
			fs         *fakesys.FakeFileSystem
			logger     boshlog.Logger
			applier    PackageApplier
		)

		BeforeEach(func() {
			packagesBc = fakebc.NewFakeBundleCollection()
			blobstore = fakeblob.NewFakeBlobstore()
			compressor = fakecmd.NewFakeCompressor()
			fs = fakesys.NewFakeFileSystem()
			logger = boshlog.NewLogger(boshlog.LevelNone)
			applier = NewConcretePackageApplier(packagesBc, true, blobstore, compressor, fs, logger)
		})

		Describe("Prepare & Apply", func() {
			var (
				pkg    models.Package
				bundle *fakebc.FakeBundle
			)

			BeforeEach(func() {
				pkg, bundle = buildPkg(packagesBc)
			})

			ItInstallsPkg := func(act func() error) {
				It("returns error when installing package fails", func() {
					bundle.InstallError = errors.New("fake-install-error")

					err := act()
					Expect(err).To(HaveOccurred())
					Expect(err.Error()).To(ContainSubstring("fake-install-error"))
				})

				It("downloads and later cleans up downloaded package blob", func() {
					blobstore.GetFileName = "/fake-blobstore-file-name"

					err := act()
					Expect(err).ToNot(HaveOccurred())
					Expect(blobstore.GetBlobIDs[0]).To(Equal("fake-blobstore-id"))
					Expect(blobstore.GetFingerprints[0]).To(Equal("fake-blob-sha1"))

					// downloaded file is cleaned up
					Expect(blobstore.CleanUpFileName).To(Equal("/fake-blobstore-file-name"))
				})

				It("returns error when downloading package blob fails", func() {
					blobstore.GetError = errors.New("fake-get-error")

					err := act()
					Expect(err).To(HaveOccurred())
					Expect(err.Error()).To(ContainSubstring("fake-get-error"))
				})

				It("decompresses package blob to tmp path and later cleans it up", func() {
					fs.TempDirDir = "/fake-tmp-dir"
					blobstore.GetFileName = "/fake-blobstore-file-name"

					var tmpDirExistsBeforeInstall bool

					bundle.InstallCallBack = func() {
						tmpDirExistsBeforeInstall = true
					}

					err := act()
					Expect(err).ToNot(HaveOccurred())

					Expect(compressor.DecompressFileToDirTarballPaths[0]).To(Equal("/fake-blobstore-file-name"))
					Expect(compressor.DecompressFileToDirDirs[0]).To(Equal("/fake-tmp-dir"))

					// tmp dir exists before bundle install
					Expect(tmpDirExistsBeforeInstall).To(BeTrue())

					// tmp dir is cleaned up after install
					Expect(fs.FileExists(fs.TempDirDir)).To(BeFalse())
				})

				It("returns error when temporary directory creation fails", func() {
					fs.TempDirError = errors.New("fake-filesystem-tempdir-error")

					err := act()
					Expect(err).To(HaveOccurred())
					Expect(err.Error()).To(ContainSubstring("fake-filesystem-tempdir-error"))
				})

				It("returns error when decompressing package blob fails", func() {
					compressor.DecompressFileToDirErr = errors.New("fake-decompress-error")

					err := act()
					Expect(err).To(HaveOccurred())
					Expect(err.Error()).To(ContainSubstring("fake-decompress-error"))
				})

				It("installs bundle from decompressed tmp path of a package blob", func() {
					fs.TempDirDir = "/fake-tmp-dir"
//.........这里部分代码省略.........

func init() {
	Describe("concreteBuilder", func() {
		var (
			settingsService *fakesettings.FakeSettingsService
			builder         Builder
		)

		BeforeEach(func() {
			logger := boshlog.NewLogger(boshlog.LevelNone)
			settingsService = &fakesettings.FakeSettingsService{}
			builder = NewBuilder(settingsService, logger)
		})

		Describe("Build", func() {
			It("builds alert with id, severity and other monit related info", func() {
				builtAlert, err := builder.Build(buildMonitAlert())
				Expect(err).ToNot(HaveOccurred())
				Expect(builtAlert).To(Equal(Alert{
					ID:        "some random id",
					Severity:  SeverityAlert,
					Title:     "nats - does not exist - restart",
					Summary:   "process is not running",
					CreatedAt: 1306076861,
				}))
			})

			It("sets the severity based on event", func() {
				alerts := map[string]SeverityLevel{
					"action done": SeverityIgnored,
					"Action done": SeverityIgnored,
					"action Done": SeverityIgnored,
				}

				for event, expectedSeverity := range alerts {
					inputAlert := buildMonitAlert()
					inputAlert.Event = event
					builtAlert, _ := builder.Build(inputAlert)
					Expect(builtAlert.Severity).To(Equal(expectedSeverity))
				}
			})

			It("sets default severity to critical", func() {
				inputAlert := buildMonitAlert()
				inputAlert.Event = "some unknown event"

				builtAlert, _ := builder.Build(inputAlert)
				Expect(builtAlert.Severity).To(Equal(SeverityCritical))
			})

			It("sets created at", func() {
				inputAlert := buildMonitAlert()
				inputAlert.Date = "Thu, 02 May 2013 20:07:41 +0500"

				builtAlert, _ := builder.Build(inputAlert)
				Expect(int(builtAlert.CreatedAt)).To(Equal(int(1367507261)))
			})

			It("defaults created at to now on parse error", func() {
				inputAlert := buildMonitAlert()
				inputAlert.Date = "Thu, 02 May 2013 20:07:0"

				builtAlert, _ := builder.Build(inputAlert)
				createdAt := time.Unix(builtAlert.CreatedAt, 0)
				assert.WithinDuration(GinkgoT(), time.Now(), createdAt, 1*time.Second)
			})

			It("sets the title with ips", func() {
				inputAlert := buildMonitAlert()
				settingsService.Settings.Networks = boshsettings.Networks{
					"fake-net1": boshsettings.Network{IP: "192.168.0.1"},
					"fake-net2": boshsettings.Network{IP: "10.0.0.1"},
				}

				builtAlert, _ := builder.Build(inputAlert)
				Expect(builtAlert.Title).To(Equal("nats (10.0.0.1, 192.168.0.1) - does not exist - restart"))
			})
		})
	})
}

func createSfdiskPartitionerForTests(runner *fakesys.FakeCmdRunner) (partitioner Partitioner) {
	logger := boshlog.NewLogger(boshlog.LevelNone)
	partitioner = NewSfdiskPartitioner(logger, runner)
	return
}

func init() {
	Describe("provider", func() {
		var (
			platform              *fakeplatform.FakePlatform
			client                *fakemonit.FakeMonitClient
			logger                boshlog.Logger
			dirProvider           boshdir.DirectoriesProvider
			jobFailuresServerPort int
			handler               *fakembus.FakeHandler
			provider              Provider
		)

		BeforeEach(func() {
			platform = fakeplatform.NewFakePlatform()
			client = fakemonit.NewFakeMonitClient()
			logger = boshlog.NewLogger(boshlog.LevelNone)
			dirProvider = boshdir.NewDirectoriesProvider("/fake-base-dir")
			jobFailuresServerPort = 2825
			handler = &fakembus.FakeHandler{}

			provider = NewProvider(
				platform,
				client,
				logger,
				dirProvider,
				handler,
			)
		})

		It("provides a monit job supervisor", func() {
			actualSupervisor, err := provider.Get("monit")
			Expect(err).ToNot(HaveOccurred())

			expectedSupervisor := NewMonitJobSupervisor(
				platform.Fs,
				platform.Runner,
				client,
				logger,
				dirProvider,
				jobFailuresServerPort,
				MonitReloadOptions{
					MaxTries:               3,
					MaxCheckTries:          6,
					DelayBetweenCheckTries: 5 * time.Second,
				},
			)
			Expect(actualSupervisor).To(Equal(expectedSupervisor))
		})

		It("provides a dummy job supervisor", func() {
			actualSupervisor, err := provider.Get("dummy")
			Expect(err).ToNot(HaveOccurred())

			expectedSupervisor := NewDummyJobSupervisor()
			Expect(actualSupervisor).To(Equal(expectedSupervisor))
		})

		It("provides a dummy nats job supervisor", func() {
			actualSupervisor, err := provider.Get("dummy-nats")
			Expect(err).NotTo(HaveOccurred())

			expectedSupervisor := NewDummyNatsJobSupervisor(handler)
			Expect(actualSupervisor).To(Equal(expectedSupervisor))
		})

		It("returns an error when the supervisor is not found", func() {
			_, err := provider.Get("does-not-exist")
			Expect(err).To(HaveOccurred())
			Expect(err.Error()).To(ContainSubstring("does-not-exist could not be found"))
		})
	})
}

func init() {
	Describe("asyncTaskService", func() {
		var (
			uuidGen *fakeuuid.FakeGenerator
			service Service
		)

		BeforeEach(func() {
			uuidGen = &fakeuuid.FakeGenerator{}
			service = NewAsyncTaskService(uuidGen, boshlog.NewLogger(boshlog.LevelNone))
		})

		Describe("StartTask", func() {
			startAndWaitForTaskCompletion := func(task Task) Task {
				service.StartTask(task)
				for task.State == TaskStateRunning {
					time.Sleep(time.Nanosecond)
					task, _ = service.FindTaskWithID(task.ID)
				}
				return task
			}

			It("sets return value on a successful task", func() {
				runFunc := func() (interface{}, error) { return 123, nil }

				task, err := service.CreateTask(runFunc, nil, nil)
				Expect(err).ToNot(HaveOccurred())

				task = startAndWaitForTaskCompletion(task)
				Expect(task.State).To(BeEquivalentTo(TaskStateDone))
				Expect(task.Value).To(Equal(123))
				Expect(task.Error).To(BeNil())
			})

			It("sets task error on a failing task", func() {
				err := errors.New("fake-error")
				runFunc := func() (interface{}, error) { return nil, err }

				task, createErr := service.CreateTask(runFunc, nil, nil)
				Expect(createErr).ToNot(HaveOccurred())

				task = startAndWaitForTaskCompletion(task)
				Expect(task.State).To(BeEquivalentTo(TaskStateFailed))
				Expect(task.Value).To(BeNil())
				Expect(task.Error).To(Equal(err))
			})

			Describe("CreateTask", func() {
				It("can run task created with CreateTask which does not have end func", func() {
					ranFunc := false
					runFunc := func() (interface{}, error) { ranFunc = true; return nil, nil }

					task, err := service.CreateTask(runFunc, nil, nil)
					Expect(err).ToNot(HaveOccurred())

					startAndWaitForTaskCompletion(task)
					Expect(ranFunc).To(BeTrue())
				})

				It("can run task created with CreateTask which has end func", func() {
					ranFunc := false
					runFunc := func() (interface{}, error) { ranFunc = true; return nil, nil }

					ranEndFunc := false
					endFunc := func(Task) { ranEndFunc = true }

					task, err := service.CreateTask(runFunc, nil, endFunc)
					Expect(err).ToNot(HaveOccurred())

					startAndWaitForTaskCompletion(task)
					Expect(ranFunc).To(BeTrue())
					Expect(ranEndFunc).To(BeTrue())
				})

				It("returns an error if generate uuid fails", func() {
					uuidGen.GenerateError = errors.New("fake-generate-uuid-error")
					_, err := service.CreateTask(nil, nil, nil)
					Expect(err).To(HaveOccurred())
					Expect(err.Error()).To(ContainSubstring("fake-generate-uuid-error"))
				})
			})

			Describe("CreateTaskWithID", func() {
				It("can run task created with CreateTaskWithID which does not have end func", func() {
					ranFunc := false
					runFunc := func() (interface{}, error) { ranFunc = true; return nil, nil }

					task := service.CreateTaskWithID("fake-task-id", runFunc, nil, nil)

					startAndWaitForTaskCompletion(task)
					Expect(ranFunc).To(BeTrue())
				})

				It("can run task created with CreateTaskWithID which has end func", func() {
					ranFunc := false
					runFunc := func() (interface{}, error) { ranFunc = true; return nil, nil }

					ranEndFunc := false
					endFunc := func(Task) { ranEndFunc = true }

//.........这里部分代码省略.........

func init() {
	Describe("execCmdRunner", func() {
		var (
			runner CmdRunner
		)

		BeforeEach(func() {
			runner = NewExecCmdRunner(boshlog.NewLogger(boshlog.LevelNone))
		})

		Describe("RunComplexCommand", func() {
			It("run complex command with working directory", func() {
				cmd := Command{
					Name:       "ls",
					Args:       []string{"-l"},
					WorkingDir: "..",
				}
				stdout, stderr, status, err := runner.RunComplexCommand(cmd)
				Expect(err).ToNot(HaveOccurred())
				Expect(stdout).To(ContainSubstring("README.md"))
				Expect(stdout).To(ContainSubstring("total"))
				Expect(stderr).To(BeEmpty())
				Expect(status).To(Equal(0))
			})

			It("run complex command with env", func() {
				cmd := Command{
					Name: "env",
					Env: map[string]string{
						"FOO": "BAR",
					},
				}
				stdout, stderr, status, err := runner.RunComplexCommand(cmd)
				Expect(err).ToNot(HaveOccurred())
				Expect(stdout).To(ContainSubstring("FOO=BAR"))
				Expect(stdout).To(ContainSubstring("PATH="))
				Expect(stderr).To(BeEmpty())
				Expect(status).To(Equal(0))
			})

			It("prints stdout/stderr to provided I/O object", func() {
				fs := fakesys.NewFakeFileSystem()
				stdoutFile, err := fs.OpenFile("/fake-stdout-path", os.O_RDWR, os.FileMode(0644))
				Expect(err).ToNot(HaveOccurred())

				stderrFile, err := fs.OpenFile("/fake-stderr-path", os.O_RDWR, os.FileMode(0644))
				Expect(err).ToNot(HaveOccurred())

				cmd := Command{
					Name:   "bash",
					Args:   []string{"-c", "echo fake-out >&1; echo fake-err >&2"},
					Stdout: stdoutFile,
					Stderr: stderrFile,
				}

				stdout, stderr, status, err := runner.RunComplexCommand(cmd)
				Expect(err).ToNot(HaveOccurred())

				Expect(stdout).To(BeEmpty())
				Expect(stderr).To(BeEmpty())
				Expect(status).To(Equal(0))

				stdoutContents := make([]byte, 1024)
				_, err = stdoutFile.Read(stdoutContents)
				Expect(err).ToNot(HaveOccurred())
				Expect(string(stdoutContents)).To(ContainSubstring("fake-out"))

				stderrContents := make([]byte, 1024)
				_, err = stderrFile.Read(stderrContents)
				Expect(err).ToNot(HaveOccurred())
				Expect(string(stderrContents)).To(ContainSubstring("fake-err"))
			})
		})

		Describe("RunComplexCommandAsync", func() {
			It("populates stdout and stderr", func() {
				cmd := Command{Name: "ls"}
				process, err := runner.RunComplexCommandAsync(cmd)
				Expect(err).ToNot(HaveOccurred())

				result := <-process.Wait()
				Expect(result.Error).ToNot(HaveOccurred())
				Expect(result.ExitStatus).To(Equal(0))
			})

			It("populates stdout and stderr", func() {
				cmd := Command{Name: "bash", Args: []string{"-c", "echo stdout >&1; echo stderr >&2"}}
				process, err := runner.RunComplexCommandAsync(cmd)
				Expect(err).ToNot(HaveOccurred())

				result := <-process.Wait()
				Expect(result.Error).ToNot(HaveOccurred())
				Expect(result.Stdout).To(Equal("stdout\n"))
				Expect(result.Stderr).To(Equal("stderr\n"))
			})

			It("returns error and sets status to exit status of comamnd if it command exits with non-0 status", func() {
				cmd := Command{Name: "bash", Args: []string{"-c", "exit 10"}}
				process, err := runner.RunComplexCommandAsync(cmd)
				Expect(err).ToNot(HaveOccurred())
//.........这里部分代码省略.........

//.........这里部分代码省略.........
			osFs, _ := createOsFs()

			file1, err := osFs.TempFile("fake-prefix")
			Expect(err).ToNot(HaveOccurred())
			assert.NotEmpty(GinkgoT(), file1)

			defer os.Remove(file1.Name())

			file2, err := osFs.TempFile("fake-prefix")
			Expect(err).ToNot(HaveOccurred())
			assert.NotEmpty(GinkgoT(), file2)

			defer os.Remove(file2.Name())

			assert.NotEqual(GinkgoT(), file1.Name(), file2.Name())
		})

		It("temp dir", func() {
			osFs, _ := createOsFs()

			path1, err := osFs.TempDir("fake-prefix")
			Expect(err).ToNot(HaveOccurred())
			assert.NotEmpty(GinkgoT(), path1)

			defer os.Remove(path1)

			path2, err := osFs.TempDir("fake-prefix")
			Expect(err).ToNot(HaveOccurred())
			assert.NotEmpty(GinkgoT(), path2)

			defer os.Remove(path2)

			assert.NotEqual(GinkgoT(), path1, path2)
		})

		Describe("CopyFile", func() {
			It("copies file", func() {
				osFs, _ := createOsFs()
				srcPath := "../Fixtures/test_copy_dir_entries/foo.txt"
				dstFile, err := osFs.TempFile("CopyFileTestFile")
				Expect(err).ToNot(HaveOccurred())
				defer os.Remove(dstFile.Name())

				err = osFs.CopyFile(srcPath, dstFile.Name())

				fooContent, err := osFs.ReadFileString(dstFile.Name())
				Expect(err).ToNot(HaveOccurred())
				Expect(fooContent).To(Equal("foo\n"))
			})

			It("does not leak file descriptors", func() {
				osFs, _ := createOsFs()

				srcFile, err := osFs.TempFile("srcPath")
				Expect(err).ToNot(HaveOccurred())

				err = srcFile.Close()
				Expect(err).ToNot(HaveOccurred())

				dstFile, err := osFs.TempFile("dstPath")
				Expect(err).ToNot(HaveOccurred())

				err = dstFile.Close()
				Expect(err).ToNot(HaveOccurred())

				err = osFs.CopyFile(srcFile.Name(), dstFile.Name())
				Expect(err).ToNot(HaveOccurred())

				runner := NewExecCmdRunner(boshlog.NewLogger(boshlog.LevelNone))
				stdout, _, _, err := runner.RunCommand("lsof")
				Expect(err).ToNot(HaveOccurred())

				for _, line := range strings.Split(stdout, "\n") {
					if strings.Contains(line, srcFile.Name()) {
						Fail(fmt.Sprintf("CopyFile did not close: srcFile: %s", srcFile.Name()))
					}
					if strings.Contains(line, dstFile.Name()) {
						Fail(fmt.Sprintf("CopyFile did not close: dstFile: %s", dstFile.Name()))
					}
				}

				os.Remove(srcFile.Name())
				os.Remove(dstFile.Name())
			})
		})

		It("remove all", func() {
			osFs, _ := createOsFs()
			dstFile, err := osFs.TempFile("CopyFileTestFile")
			Expect(err).ToNot(HaveOccurred())
			defer os.Remove(dstFile.Name())

			err = osFs.RemoveAll(dstFile.Name())
			Expect(err).ToNot(HaveOccurred())

			_, err = os.Stat(dstFile.Name())
			Expect(os.IsNotExist(err)).To(BeTrue())
		})
	})
}

func createOsFs() (fs FileSystem, runner CmdRunner) {
	logger := boshlog.NewLogger(boshlog.LevelNone)
	fs = NewOsFileSystem(logger)
	return
}