Golang FakeFileSystem.WriteFileString方法代碼示例

	BeforeEach(func() {
		compressor = fakecmd.NewFakeCompressor()
		fs = fakesys.NewFakeFileSystem()
		stemcellReader = NewReader(compressor, fs)

		manifestContents := `
---
name: fake-stemcell-name
version: '2690'
cloud_properties:
  infrastructure: aws
  ami:
    us-east-1: fake-ami-version
    `
		fs.WriteFileString("fake-extracted-path/stemcell.MF", manifestContents)
	})

	It("extracts the stemcells from a stemcell path", func() {
		_, err := stemcellReader.Read("fake-stemcell-path", "fake-extracted-path")
		Expect(err).ToNot(HaveOccurred())
		Expect(compressor.DecompressFileToDirTarballPaths).To(ContainElement("fake-stemcell-path"))
		Expect(compressor.DecompressFileToDirDirs).To(ContainElement("fake-extracted-path"))
	})

	It("generates correct stemcell", func() {
		stemcell, err := stemcellReader.Read("fake-stemcell-path", "fake-extracted-path")
		Expect(err).ToNot(HaveOccurred())
		expectedStemcell := NewExtractedStemcell(
			Manifest{
				Name:      "fake-stemcell-name",

    port: 22
    user: {{ .SSHTunnelUser }}
    private_key: {{ .SSHTunnelPrivateKey }}
`
		type manifestContext struct {
			DiskSize            int
			SSHTunnelUser       string
			SSHTunnelPrivateKey string
		}

		var updateManifest = func(context manifestContext) {
			buffer := bytes.NewBuffer([]byte{})
			t := template.Must(template.New("manifest").Parse(manifestTemplate))
			err := t.Execute(buffer, context)
			Expect(err).ToNot(HaveOccurred())
			err = fs.WriteFileString(deploymentManifestPath, buffer.String())
			Expect(err).ToNot(HaveOccurred())
		}

		var writeDeploymentManifest = func() {
			context := manifestContext{
				DiskSize:            1024,
				SSHTunnelUser:       sshConfig.Username,
				SSHTunnelPrivateKey: sshConfig.PrivateKey,
			}
			updateManifest(context)

			fakeSHA1Calculator.SetCalculateBehavior(map[string]fakebicrypto.CalculateInput{
				deploymentManifestPath: {Sha1: "fake-deployment-sha1-1"},
			})
		}

		logger := boshlog.NewLogger(boshlog.LevelNone)
		fakeUUIDGenerator = fakeuuid.NewFakeGenerator()
		service = NewFileSystemDeploymentStateService(fakeFs, fakeUUIDGenerator, logger, deploymentStatePath)
	})

	Describe("DeploymentStatePath", func() {
		It("is based on the manifest path and name", func() {
			Expect(DeploymentStatePath("/path/to/some-manifest.yml")).To(Equal("/path/to/some-manifest-state.json"))
			Expect(DeploymentStatePath("/path/to/some-manifesty.yaml")).To(Equal("/path/to/some-manifesty-state.json"))
			Expect(DeploymentStatePath("/path/to/some-manifest")).To(Equal("/path/to/some-manifest-state.json"))
		})
	})

	Describe("Exists", func() {
		It("returns true if the config file exists", func() {
			fakeFs.WriteFileString(deploymentStatePath, "")
			Expect(service.Exists()).To(BeTrue())
		})

		It("returns false if the config file does not exist", func() {
			Expect(service.Exists()).To(BeFalse())
		})
	})

	Describe("Load", func() {
		It("reads the given config file", func() {
			stemcells := []StemcellRecord{
				StemcellRecord{
					Name:    "fake-stemcell-name-1",
					Version: "fake-stemcell-version-1",
					CID:     "fake-stemcell-cid-1",

				Expect(actualJob).To(Equal(expectedJob))
				Expect(ok).To(BeTrue())
			})
		})

		Context("when the job does not exist", func() {
			It("returns nil and false", func() {
				_, ok := release.FindJobByName("fake-non-existent-job")
				Expect(ok).To(BeFalse())
			})
		})
	})

	Describe("Delete", func() {
		BeforeEach(func() {
			fakeFS.WriteFileString("fake-extracted-path", "")
		})

		It("deletes the extracted release path", func() {
			Expect(fakeFS.FileExists("fake-extracted-path")).To(BeTrue())
			err := release.Delete()
			Expect(err).ToNot(HaveOccurred())
			Expect(fakeFS.FileExists("fake-extracted-path")).To(BeFalse())
		})
	})

	Describe("Exists", func() {
		BeforeEach(func() {
			fakeFS.WriteFileString("fake-extracted-path", "")
		})

			expectFind = mockCompiledPackageRepo.EXPECT().Find(*pkg).Return(bistatepkg.CompiledPackageRecord{}, false, nil).AnyTimes()

			dep1 = bistatepkg.CompiledPackageRecord{
				BlobID:   "fake-dependency-blobstore-id-1",
				BlobSHA1: "fake-dependency-sha1-1",
			}
			mockCompiledPackageRepo.EXPECT().Find(*dependency1).Return(dep1, true, nil).AnyTimes()

			dep2 = bistatepkg.CompiledPackageRecord{
				BlobID:   "fake-dependency-blobstore-id-2",
				BlobSHA1: "fake-dependency-sha1-2",
			}
			mockCompiledPackageRepo.EXPECT().Find(*dependency2).Return(dep2, true, nil).AnyTimes()

			// packaging file created when source is extracted
			fs.WriteFileString(path.Join(pkg.ExtractedPath, "packaging"), "")

			compressor.CompressFilesInDirTarballPath = compiledPackageTarballPath

			record := bistatepkg.CompiledPackageRecord{
				BlobID:   "fake-blob-id",
				BlobSHA1: "fake-fingerprint",
			}
			expectSave = mockCompiledPackageRepo.EXPECT().Save(*pkg, record).AnyTimes()
		})

		Context("when the compiled package repo already has the package", func() {
			JustBeforeEach(func() {
				compiledPkgRecord := bistatepkg.CompiledPackageRecord{
					BlobSHA1: "fake-fingerprint",
				}

  networks:
  - name: vip
    static_ips: [1.2.3.4]
  - name: fake-network-name
    default: [dns]
  persistent_disk: 1024
  persistent_disk_pool: fake-disk-pool-name
  resource_pool: fake-resource-pool
  properties:
    fake-prop-key:
      nested-prop-key: fake-prop-value
properties:
  foo:
    bar: baz
`
		fakeFs.WriteFileString(comboManifestPath, contents)
	})

	It("parses deployment manifest from combo manifest file", func() {
		deploymentManifest, err := parser.Parse(comboManifestPath)
		Expect(err).ToNot(HaveOccurred())

		Expect(deploymentManifest).To(Equal(Manifest{
			Name: "fake-deployment-name",
			Update: Update{
				UpdateWatchTime: WatchTime{
					Start: 2000,
					End:   7000,
				},
			},
			Networks: []Network{

		fs = fakesys.NewFakeFileSystem()
		logger := boshlog.NewLogger(boshlog.LevelNone)
		metadataService = NewFileMetadataService(
			"fake-metadata-file-path",
			"fake-userdata-file-path",
			"fake-settings-file-path",
			fs,
			logger,
		)
	})

	Describe("GetInstanceID", func() {
		Context("when metadata service file exists", func() {
			BeforeEach(func() {
				metadataContents := `{"instance-id":"fake-instance-id"}`
				fs.WriteFileString("fake-metadata-file-path", metadataContents)
			})

			It("returns instance id", func() {
				instanceID, err := metadataService.GetInstanceID()
				Expect(err).NotTo(HaveOccurred())
				Expect(instanceID).To(Equal("fake-instance-id"))
			})
		})

		Context("when metadata service file does not exist", func() {
			It("returns an error", func() {
				_, err := metadataService.GetInstanceID()
				Expect(err).To(HaveOccurred())
			})
		})

	. "github.com/cloudfoundry/bosh-init/release"

	fakesys "github.com/cloudfoundry/bosh-init/internal/github.com/cloudfoundry/bosh-utils/system/fakes"
	bireljob "github.com/cloudfoundry/bosh-init/release/job"
	birelpkg "github.com/cloudfoundry/bosh-init/release/pkg"
)

var _ = Describe("Validator", func() {
	var fakeFs *fakesys.FakeFileSystem

	BeforeEach(func() {
		fakeFs = fakesys.NewFakeFileSystem()
	})

	It("validates a valid release without error", func() {
		fakeFs.WriteFileString("/some/job/path/monit", "")
		fakeFs.WriteFileString("/some/job/path/templates/fake-job-1-template", "")
		release := NewRelease(
			"fake-release-name",
			"fake-release-version",
			[]bireljob.Job{
				{
					Name:          "fake-job-1-name",
					Fingerprint:   "fake-job-1-fingerprint",
					SHA1:          "fake-job-1-sha",
					Templates:     map[string]string{"fake-job-1-template": "fake-job-1-file"},
					ExtractedPath: "/some/job/path",
				},
			},
			[]*birelpkg.Package{
				{

  mbus: http://fake-mbus-user:[email protected]:6868
`,
		}
	})

	Describe("#Parse", func() {
		Context("when combo manifest path does not exist", func() {
			It("returns an error", func() {
				_, err := parser.Parse(comboManifestPath, releaseSetManifest)
				Expect(err).To(HaveOccurred())
			})
		})

		Context("when parser fails to read the combo manifest file", func() {
			JustBeforeEach(func() {
				fakeFs.WriteFileString(comboManifestPath, fixtures.validManifest)
				fakeFs.ReadFileError = errors.New("fake-read-file-error")
			})

			It("returns an error", func() {
				_, err := parser.Parse(comboManifestPath, releaseSetManifest)
				Expect(err).To(HaveOccurred())
			})
		})

		Context("with a valid manifest", func() {
			BeforeEach(func() {
				fakeFs.WriteFileString(comboManifestPath, fixtures.validManifest)
			})

			It("parses installation from combo manifest", func() {

			Expect(err.Error()).To(ContainSubstring("missing blobstore_path"))
		})

		It("returns error when blobstore path is not a string", func() {
			options := map[string]interface{}{"blobstore_path": 443}
			blobstore = NewLocalBlobstore(fs, uuidGen, options)

			err := blobstore.Validate()
			Expect(err).To(HaveOccurred())
			Expect(err.Error()).To(ContainSubstring("blobstore_path must be a string"))
		})
	})

	Describe("Get", func() {
		It("fetches the local blob contents", func() {
			fs.WriteFileString(fakeBlobstorePath+"/fake-blob-id", "fake contents")

			tempFile, err := fs.TempFile("bosh-blobstore-local-TestLocalGet")
			Expect(err).ToNot(HaveOccurred())

			fs.ReturnTempFile = tempFile
			defer fs.RemoveAll(tempFile.Name())

			_, err = blobstore.Get("fake-blob-id", "")
			Expect(err).ToNot(HaveOccurred())

			fileStats := fs.GetFileTestStat(tempFile.Name())
			Expect(fileStats).ToNot(BeNil())
			Expect("fake contents").To(Equal(fileStats.StringContents()))
		})

func describeCentosNetManager() {
	var (
		fs                            *fakesys.FakeFileSystem
		cmdRunner                     *fakesys.FakeCmdRunner
		ipResolver                    *fakeip.FakeResolver
		addressBroadcaster            *fakearp.FakeAddressBroadcaster
		netManager                    Manager
		interfaceConfigurationCreator InterfaceConfigurationCreator
	)

	BeforeEach(func() {
		fs = fakesys.NewFakeFileSystem()
		cmdRunner = fakesys.NewFakeCmdRunner()
		ipResolver = &fakeip.FakeResolver{}
		logger := boshlog.NewLogger(boshlog.LevelNone)
		interfaceConfigurationCreator = NewInterfaceConfigurationCreator(logger)
		addressBroadcaster = &fakearp.FakeAddressBroadcaster{}
		netManager = NewCentosNetManager(
			fs,
			cmdRunner,
			ipResolver,
			interfaceConfigurationCreator,
			addressBroadcaster,
			logger,
		)
	})

	writeNetworkDevice := func(iface string, macAddress string, isPhysical bool) string {
		interfacePath := fmt.Sprintf("/sys/class/net/%s", iface)
		fs.WriteFile(interfacePath, []byte{})
		if isPhysical {
			fs.WriteFile(fmt.Sprintf("/sys/class/net/%s/device", iface), []byte{})
		}
		fs.WriteFileString(fmt.Sprintf("/sys/class/net/%s/address", iface), fmt.Sprintf("%s\n", macAddress))

		return interfacePath
	}

	Describe("SetupNetworking", func() {
		var (
			dhcpNetwork                           boshsettings.Network
			staticNetwork                         boshsettings.Network
			expectedNetworkConfigurationForStatic string
			expectedNetworkConfigurationForDHCP   string
			expectedDhclientConfiguration         string
		)

		BeforeEach(func() {
			dhcpNetwork = boshsettings.Network{
				Type:    "dynamic",
				Default: []string{"dns"},
				DNS:     []string{"8.8.8.8", "9.9.9.9"},
				Mac:     "fake-dhcp-mac-address",
			}
			staticNetwork = boshsettings.Network{
				Type:    "manual",
				IP:      "1.2.3.4",
				Netmask: "255.255.255.0",
				Gateway: "3.4.5.6",
				Mac:     "fake-static-mac-address",
			}

			expectedNetworkConfigurationForStatic = `DEVICE=ethstatic
BOOTPROTO=static
IPADDR=1.2.3.4
NETMASK=255.255.255.0
BROADCAST=1.2.3.255
GATEWAY=3.4.5.6
ONBOOT=yes
PEERDNS=no
DNS1=8.8.8.8
DNS2=9.9.9.9
`

			expectedNetworkConfigurationForDHCP = `DEVICE=ethdhcp
BOOTPROTO=dhcp
ONBOOT=yes
PEERDNS=yes
`

			expectedDhclientConfiguration = `# Generated by bosh-agent

option rfc3442-classless-static-routes code 121 = array of unsigned integer 8;

send host-name "<hostname>";

request subnet-mask, broadcast-address, time-offset, routers,
	domain-name, domain-name-servers, domain-search, host-name,
	netbios-name-servers, netbios-scope, interface-mtu,
	rfc3442-classless-static-routes, ntp-servers;

prepend domain-name-servers 8.8.8.8, 9.9.9.9;
`
		})

		stubInterfacesWithVirtual := func(physicalInterfaces map[string]boshsettings.Network, virtualInterfaces []string) {
			interfacePaths := []string{}

			for iface, networkSettings := range physicalInterfaces {
				interfacePaths = append(interfacePaths, writeNetworkDevice(iface, networkSettings.Mac, true))
//.........這裏部分代碼省略.........

	BeforeEach(func() {
		fs = fakesys.NewFakeFileSystem()
		logger := boshlog.NewLogger(boshlog.LevelNone)
		cache = NewCache("/fake-base-path", fs, logger)
		sha1Calculator = fakebicrypto.NewFakeSha1Calculator()
		httpClient = fakebihttpclient.NewFakeHTTPClient()
		provider = NewProvider(cache, fs, httpClient, sha1Calculator, 3, 0, logger)
		fakeStage = fakebiui.NewFakeStage()
	})

	Describe("Get", func() {
		Context("when URL starts with file://", func() {
			BeforeEach(func() {
				source = newFakeSource("file://fake-file", "fake-sha1", "fake-description")
				fs.WriteFileString("expanded-file-path", "")
				fs.ExpandPathExpanded = "expanded-file-path"
			})

			It("returns expanded path to file", func() {
				path, err := provider.Get(source, fakeStage)
				Expect(err).ToNot(HaveOccurred())
				Expect(path).To(Equal("expanded-file-path"))
			})
		})

		Context("when URL starts with http(s)://", func() {
			BeforeEach(func() {
				source = newFakeSource("http://fake-url", "fake-sha1", "fake-description")
			})

	BeforeEach(func() {
		fakeFS = fakesys.NewFakeFileSystem()
		fakeUUIDGenerator = fakeuuid.NewFakeGenerator()
		logger = boshlog.NewLogger(boshlog.LevelNone)
		deploymentStateService = biconfig.NewFileSystemDeploymentStateService(
			fakeFS,
			fakeUUIDGenerator,
			logger,
			configPath,
		)
		targetProvider = NewTargetProvider(deploymentStateService, fakeUUIDGenerator, installationsRootPath)
	})

	Context("when the installation_id exists in the deployment state", func() {
		BeforeEach(func() {
			err := fakeFS.WriteFileString(configPath, `{"installation_id":"12345"}`)
			Expect(err).ToNot(HaveOccurred())
		})

		It("uses the existing installation_id & returns a target based on it", func() {
			target, err := targetProvider.NewTarget()
			Expect(err).ToNot(HaveOccurred())
			Expect(target.Path()).To(Equal("/.bosh_init/installations/12345"))
		})

		It("does not change the saved installation_id", func() {
			_, err := targetProvider.NewTarget()
			Expect(err).ToNot(HaveOccurred())

			deploymentState, err := deploymentStateService.Load()
			Expect(err).ToNot(HaveOccurred())

	})

	Describe("MigrateIfExists", func() {
		Context("when no legacy deploment config file exists", func() {
			It("does nothing", func() {
				migrated, err := migrator.MigrateIfExists(legacyDeploymentStateFilePath)
				Expect(migrated).To(BeFalse())
				Expect(err).ToNot(HaveOccurred())

				Expect(fakeFs.FileExists(modernDeploymentStateFilePath)).To(BeFalse())
			})
		})

		Context("when legacy deploment config file exists (but is unparseable)", func() {
			BeforeEach(func() {
				fakeFs.WriteFileString(legacyDeploymentStateFilePath, `xyz`)
			})

			It("does not delete the legacy deployment state file", func() {
				migrated, err := migrator.MigrateIfExists(legacyDeploymentStateFilePath)
				Expect(migrated).To(BeFalse())
				Expect(err).To(HaveOccurred())

				Expect(fakeFs.FileExists(modernDeploymentStateFilePath)).To(BeFalse())
				Expect(fakeFs.FileExists(legacyDeploymentStateFilePath)).To(BeTrue())
			})
		})

		Context("when legacy deploment config file exists (and is empty)", func() {
			BeforeEach(func() {
				fakeFs.WriteFileString(legacyDeploymentStateFilePath, `--- {}`)

		cache Cache
		fs    *fakesys.FakeFileSystem
	)

	BeforeEach(func() {
		logger := boshlog.NewLogger(boshlog.LevelNone)
		fs = fakesys.NewFakeFileSystem()
		cache = NewCache(
			"/fake-base-path",
			fs,
			logger,
		)
	})

	It("is a cache hit when the tarball with that url and sha1 has been downloaded", func() {
		fs.WriteFileString("source-path", "")

		err := cache.Save("source-path", &fakeSource{
			sha1:        "fake-sha1",
			url:         "http://foo.bar.com",
			description: "some tarball",
		})
		Expect(err).ToNot(HaveOccurred())

		path, found := cache.Get(&fakeSource{
			sha1:        "fake-sha1",
			url:         "http://foo.bar.com",
			description: "some tarball",
		})
		Expect(found).To(BeTrue())
		Expect(fs.FileExists(path)).To(BeTrue())