Golang FakeFileSystem.ReadFileString方法代碼示例

		It("updates the blob on the file system", func() {
			fs.WriteFileString("/var/vcap/micro_bosh/data/cache/123-456-789", "Some data")

			putBody := `Updated data`
			putPayload := strings.NewReader(putBody)

			request, err := http.NewRequest("PUT", serverURL+"/blobs/a5/123-456-789", putPayload)
			Expect(err).ToNot(HaveOccurred())

			httpResponse, err := httpClient.Do(request)
			Expect(err).ToNot(HaveOccurred())

			defer httpResponse.Body.Close()
			Expect(httpResponse.StatusCode).To(Equal(201))

			contents, err := fs.ReadFileString("/var/vcap/micro_bosh/data/cache/123-456-789")
			Expect(err).ToNot(HaveOccurred())
			Expect(contents).To(Equal("Updated data"))
		})

		Context("when manager errors", func() {
			It("returns a 500 because of openfile error", func() {
				fs.OpenFileErr = errors.New("oops")

				putBody := `Updated data`
				putPayload := strings.NewReader(putBody)

				request, err := http.NewRequest("PUT", serverURL+"/blobs/a5/123-456-789", putPayload)
				Expect(err).ToNot(HaveOccurred())

				httpResponse, err := httpClient.Do(request)

					Stderr:     "fake-stderr",
					ExitStatus: 0,
					Error:      nil,
				})
			})

			It("saves stdout/stderr to log file", func() {
				runScriptResult := genericScript.Run()

				Expect(runScriptResult.Tag).To(Equal("my-tag"))
				Expect(runScriptResult.Error).To(BeNil())

				Expect(fs.FileExists(stdoutLogPath)).To(BeTrue())
				Expect(fs.FileExists(stderrLogPath)).To(BeTrue())

				stdout, err := fs.ReadFileString(stdoutLogPath)
				Expect(err).ToNot(HaveOccurred())
				Expect(stdout).To(Equal("fake-stdout"))

				stderr, err := fs.ReadFileString(stderrLogPath)
				Expect(err).ToNot(HaveOccurred())
				Expect(stderr).To(Equal("fake-stderr"))
			})
		})

		Context("when command fails", func() {

			BeforeEach(func() {
				cmdRunner.AddCmdResult("/path-to-script", fakesys.FakeCmdResult{
					Stdout:     "fake-stdout",
					Stderr:     "fake-stderr",

//.........這裏部分代碼省略.........
			Expect(authKeysStat).NotTo(BeNil())
			Expect(fakesys.FakeFileTypeFile).To(Equal(authKeysStat.FileType))
			Expect(os.FileMode(0600)).To(Equal(authKeysStat.FileMode))
			Expect("vcap").To(Equal(authKeysStat.Username))
			Expect("some public key").To(Equal(authKeysStat.StringContents()))
		})

	})

	Describe("SetUserPassword", func() {
		It("set user password", func() {
			platform.SetUserPassword("my-user", "my-encrypted-password")
			Expect(len(cmdRunner.RunCommands)).To(Equal(1))
			Expect(cmdRunner.RunCommands[0]).To(Equal([]string{"usermod", "-p", "my-encrypted-password", "my-user"}))
		})
	})

	Describe("SetupHostname", func() {
		const expectedEtcHosts = `127.0.0.1 localhost foobar.local

# The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback foobar.local
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts
`
		It("sets up hostname", func() {
			platform.SetupHostname("foobar.local")
			Expect(len(cmdRunner.RunCommands)).To(Equal(1))
			Expect(cmdRunner.RunCommands[0]).To(Equal([]string{"hostname", "foobar.local"}))

			hostnameFileContent, err := fs.ReadFileString("/etc/hostname")
			Expect(err).NotTo(HaveOccurred())
			Expect(hostnameFileContent).To(Equal("foobar.local"))

			hostsFileContent, err := fs.ReadFileString("/etc/hosts")
			Expect(err).NotTo(HaveOccurred())
			Expect(hostsFileContent).To(Equal(expectedEtcHosts))
		})

	})

	Describe("SetupLogrotate", func() {
		const expectedEtcLogrotate = `# Generated by bosh-agent

fake-base-path/data/sys/log/*.log fake-base-path/data/sys/log/*/*.log fake-base-path/data/sys/log/*/*/*.log {
  missingok
  rotate 7
  compress
  delaycompress
  copytruncate
  size=fake-size
}
`

		It("sets up logrotate", func() {
			platform.SetupLogrotate("fake-group-name", "fake-base-path", "fake-size")

			logrotateFileContent, err := fs.ReadFileString("/etc/logrotate.d/fake-group-name")
			Expect(err).NotTo(HaveOccurred())
			Expect(logrotateFileContent).To(Equal(expectedEtcLogrotate))
		})
	})

			Expect(didHandleAlert).To(BeFalse())
		})
	})

	Describe("AddJob", func() {
		BeforeEach(func() {
			fs.WriteFileString("/some/config/path", "fake-config")
		})

		Context("when reading configuration from config path succeeds", func() {
			Context("when writing job configuration succeeds", func() {
				It("returns no error because monit can track added job in jobs directory", func() {
					err := monit.AddJob("router", 0, "/some/config/path")
					Expect(err).ToNot(HaveOccurred())

					writtenConfig, err := fs.ReadFileString(
						dirProvider.MonitJobsDir() + "/0000_router.monitrc")
					Expect(err).ToNot(HaveOccurred())
					Expect(writtenConfig).To(Equal("fake-config"))
				})
			})

			Context("when writing job configuration fails", func() {
				It("returns error", func() {
					fs.WriteFileError = errors.New("fake-write-error")

					err := monit.AddJob("router", 0, "/some/config/path")
					Expect(err).To(HaveOccurred())
					Expect(err.Error()).To(ContainSubstring("fake-write-error"))
				})
			})
		})

		configPath = filepath.Join("/etc/", "blobstore-fake-provider.json")
		blobstore = NewExternalBlobstore("fake-provider", map[string]interface{}{}, fs, runner, uuidGen, configPath)
	})

	Describe("Validate", func() {
		It("external validate writes config file", func() {
			options := map[string]interface{}{"fake-key": "fake-value"}

			blobstore := NewExternalBlobstore("fake-provider", options, fs, runner, uuidGen, configPath)

			runner.CommandExistsValue = true

			err := blobstore.Validate()
			Expect(err).ToNot(HaveOccurred())

			s3CliConfig, err := fs.ReadFileString(configPath)
			Expect(err).ToNot(HaveOccurred())

			expectedJSON := map[string]string{"fake-key": "fake-value"}
			boshassert.MatchesJSONString(GinkgoT(), expectedJSON, s3CliConfig)
		})

		It("external validate errors when command not in path", func() {
			options := map[string]interface{}{}

			blobstore := NewExternalBlobstore("fake-provider", options, fs, runner, uuidGen, configPath)

			err := blobstore.Validate()
			Expect(err).To(HaveOccurred())
			Expect(err.Error()).To(ContainSubstring("not found in PATH"))
		})

		})

		fs.SetGlob("/sys/bus/scsi/devices/fake-host-id:0:fake-disk-id:0/block/*", []string{
			"/sys/bus/scsi/devices/fake-host-id:0:fake-disk-id:0/block/sdf",
		})

		diskSettings = boshsettings.DiskSettings{
			VolumeID: "fake-disk-id",
		}
	})

	Describe("GetRealDevicePath", func() {
		It("rescans the devices attached to the root disks scsi controller", func() {
			resolver.GetRealDevicePath(diskSettings)

			scanContents, err := fs.ReadFileString("/sys/class/scsi_host/hostfake-host-id/scan")
			Expect(err).NotTo(HaveOccurred())
			Expect(scanContents).To(Equal("- - -"))
		})

		It("detects device", func() {
			devicePath, timedOut, err := resolver.GetRealDevicePath(diskSettings)
			Expect(err).NotTo(HaveOccurred())
			Expect(timedOut).To(BeFalse())
			Expect(devicePath).To(Equal("/dev/sdf"))
		})

		Context("when device does not immediately appear", func() {
			It("retries detection of device", func() {
				fs.SetGlob("/sys/bus/scsi/devices/fake-host-id:0:fake-disk-id:0/block/*",
					[]string{},

					Stderr:            []byte("fake-stderr"),
					ExitStatus:        0,
				}

				result, err := runner.RunCommand("fake-log-dir-name", "fake-log-file-name", cmd)
				Expect(err).ToNot(HaveOccurred())
				Expect(result).To(Equal(expectedResult))
			})

			It("saves stdout to log file", func() {
				_, err := runner.RunCommand("fake-log-dir-name", "fake-log-file-name", cmd)
				Expect(err).ToNot(HaveOccurred())

				Expect(fs.FileExists("/fake-base-dir/fake-log-dir-name/fake-log-file-name.stdout.log")).To(BeTrue())

				stdout, err := fs.ReadFileString("/fake-base-dir/fake-log-dir-name/fake-log-file-name.stdout.log")
				Expect(err).ToNot(HaveOccurred())
				Expect(stdout).To(Equal("fake-stdout"))
			})

			It("saves stderr to log file", func() {
				_, err := runner.RunCommand("fake-log-dir-name", "fake-log-file-name", cmd)
				Expect(err).ToNot(HaveOccurred())

				Expect(fs.FileExists("/fake-base-dir/fake-log-dir-name/fake-log-file-name.stderr.log")).To(BeTrue())

				stdout, err := fs.ReadFileString("/fake-base-dir/fake-log-dir-name/fake-log-file-name.stderr.log")
				Expect(err).ToNot(HaveOccurred())
				Expect(stdout).To(Equal("fake-stderr"))
			})
		})

		err = logFile.Close()
		Expect(err).ToNot(HaveOccurred())
	})

	AfterEach(func() {
		logFile.Close()
		fs.RemoveAll(logFile.Name())
	})

	It("logs the formatted DEBUG message to the file", func() {
		logger, logFile, err := New(boshlog.LevelDebug, logFile.Name(), DefaultLogFileMode, fs)
		Expect(err).ToNot(HaveOccurred())

		logger.Debug("TAG", "some %s info to log", "awesome")

		contents, err := fs.ReadFileString(logFile.Name())
		Expect(err).ToNot(HaveOccurred())

		expectedContent := expectedLogFormat("TAG", "DEBUG - some awesome info to log")
		Expect(contents).To(MatchRegexp(expectedContent))
	})

	It("logs the formatted INFO message to the file", func() {
		logger, logFile, err := New(boshlog.LevelDebug, logFile.Name(), DefaultLogFileMode, fs)
		Expect(err).ToNot(HaveOccurred())

		logger.Info("TAG", "some %s info to log", "awesome")

		contents, err := fs.ReadFileString(logFile.Name())
		Expect(err).ToNot(HaveOccurred())