Golang FakeFileSystem.WriteFile方法代碼示例

					CID:  "fake-disk-cid",
					Size: 1024,
					CloudProperties: biproperty.Map{
						"fake-disk-property-key": "fake-disk-property-value",
					},
				},
			}
			deploymentStateFileContents, err := json.Marshal(biproperty.Map{
				"director_id":     "fake-director-id",
				"deployment_id":   "fake-deployment-id",
				"stemcells":       stemcells,
				"current_vm_cid":  "fake-vm-cid",
				"current_disk_id": "fake-disk-id",
				"disks":           disks,
			})
			fakeFs.WriteFile(deploymentStatePath, deploymentStateFileContents)

			deploymentState, err := service.Load()
			Expect(err).NotTo(HaveOccurred())
			Expect(deploymentState.DirectorID).To(Equal("fake-director-id"))
			Expect(deploymentState.Stemcells).To(Equal(stemcells))
			Expect(deploymentState.CurrentVMCID).To(Equal("fake-vm-cid"))
			Expect(deploymentState.CurrentDiskID).To(Equal("fake-disk-id"))
			Expect(deploymentState.Disks).To(Equal(disks))
		})

		Context("when the config does not exist", func() {
			It("returns a new DeploymentState with generated defaults", func() {
				deploymentState, err := service.Load()
				Expect(err).NotTo(HaveOccurred())
				Expect(deploymentState).To(Equal(DeploymentState{

	var (
		fs        *fakesys.FakeFileSystem
		cmdRunner *fakesys.FakeCmdRunner
		arping    AddressBroadcaster
	)

	BeforeEach(func() {
		fs = fakesys.NewFakeFileSystem()
		cmdRunner = fakesys.NewFakeCmdRunner()
		logger := boshlog.NewLogger(boshlog.LevelNone)
		arping = NewArping(cmdRunner, fs, logger, arpingIterations, 0, 0)
	})

	Describe("BroadcastMACAddresses", func() {
		BeforeEach(func() {
			fs.WriteFile("/sys/class/net/eth0", []byte{})
			fs.WriteFile("/sys/class/net/eth1", []byte{})
		})

		It("runs arping commands for each interface", func() {
			addresses := []boship.InterfaceAddress{
				boship.NewSimpleInterfaceAddress("eth0", "192.168.195.6"),
				boship.NewSimpleInterfaceAddress("eth1", "127.0.0.1"),
			}

			arping.BroadcastMACAddresses(addresses)

			countA := 0
			countB := 0

			a := []string{"arping", "-c", "1", "-U", "-I", "eth0", "192.168.195.6"}

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

	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
	}

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

		for iface, networkSettings := range physicalInterfaces {
			interfacePaths = append(interfacePaths, writeNetworkDevice(iface, networkSettings.Mac, true))
		}

		for _, iface := range virtualInterfaces {
			interfacePaths = append(interfacePaths, writeNetworkDevice(iface, "virtual", false))
		}

		fs.SetGlob("/sys/class/net/*", interfacePaths)
	}

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

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

	Describe("ComputeNetworkConfig", func() {
		Context("when there is one manual network and neither is marked as default for DNS", func() {
			It("should use the manual network for DNS", func() {
				networks := boshsettings.Networks{
					"manual": factory.Network{DNS: &[]string{"8.8.8.8"}}.Build(),
				}
				stubInterfaces(networks)
				_, _, dnsServers, err := netManager.ComputeNetworkConfig(networks)
				Expect(err).ToNot(HaveOccurred())
				Expect(dnsServers).To(Equal([]string{"8.8.8.8"}))
			})
		})

		Context("when there is a vip network and a manual network and neither is marked as default for DNS", func() {
			It("should use the manual network for DNS", func() {
				networks := boshsettings.Networks{
					"vip":    boshsettings.Network{Type: "vip"},
					"manual": factory.Network{Type: "manual", DNS: &[]string{"8.8.8.8"}}.Build(),
				}
				stubInterfaces(networks)
				_, _, dnsServers, err := netManager.ComputeNetworkConfig(networks)
				Expect(err).ToNot(HaveOccurred())
				Expect(dnsServers).To(Equal([]string{"8.8.8.8"}))
			})
		})
		Context("when there is a vip network and a manual network and the manual network is marked as default for DNS", func() {
			It("should use the manual network for DNS", func() {
				networks := boshsettings.Networks{
					"vip":    boshsettings.Network{Type: "vip"},
					"manual": factory.Network{Type: "manual", DNS: &[]string{"8.8.8.8"}, Default: []string{"dns"}}.Build(),
				}
				stubInterfaces(networks)
				_, _, dnsServers, err := netManager.ComputeNetworkConfig(networks)
				Expect(err).ToNot(HaveOccurred())
				Expect(dnsServers).To(Equal([]string{"8.8.8.8"}))
			})
		})

		Context("when specified more than one DNS", func() {
			It("extracts all DNS servers from the network configured as default DNS", func() {
				networks := boshsettings.Networks{
					"default": factory.Network{
						IP:      "10.10.0.32",
						Netmask: "255.255.255.0",
//.........這裏部分代碼省略.........

func init() {
	Describe("settingsService", func() {
		var (
			fs                         *fakesys.FakeFileSystem
			fakeDefaultNetworkResolver *fakenet.FakeDefaultNetworkResolver
			fakeSettingsSource         *fakes.FakeSettingsSource
		)

		BeforeEach(func() {
			fs = fakesys.NewFakeFileSystem()
			fakeDefaultNetworkResolver = &fakenet.FakeDefaultNetworkResolver{}
			fakeSettingsSource = &fakes.FakeSettingsSource{}
		})

		buildService := func() (Service, *fakesys.FakeFileSystem) {
			logger := boshlog.NewLogger(boshlog.LevelNone)
			service := NewService(fs, "/setting/path.json", fakeSettingsSource, fakeDefaultNetworkResolver, logger)
			return service, fs
		}

		Describe("LoadSettings", func() {
			var (
				fetchedSettings Settings
				fetcherFuncErr  error
				service         Service
			)

			BeforeEach(func() {
				fetchedSettings = Settings{}
				fetcherFuncErr = nil
			})

			JustBeforeEach(func() {
				fakeSettingsSource.SettingsValue = fetchedSettings
				fakeSettingsSource.SettingsErr = fetcherFuncErr
				service, fs = buildService()
			})

			Context("when settings fetcher succeeds fetching settings", func() {
				BeforeEach(func() {
					fetchedSettings = Settings{AgentID: "some-new-agent-id"}
				})

				Context("when settings contain at most one dynamic network", func() {
					BeforeEach(func() {
						fetchedSettings.Networks = Networks{
							"fake-net-1": Network{Type: NetworkTypeDynamic},
						}
					})

					It("updates the service with settings from the fetcher", func() {
						err := service.LoadSettings()
						Expect(err).NotTo(HaveOccurred())
						Expect(service.GetSettings().AgentID).To(Equal("some-new-agent-id"))
					})

					It("persists settings to the settings file", func() {
						err := service.LoadSettings()
						Expect(err).NotTo(HaveOccurred())

						json, err := json.Marshal(fetchedSettings)
						Expect(err).NotTo(HaveOccurred())

						fileContent, err := fs.ReadFile("/setting/path.json")
						Expect(err).NotTo(HaveOccurred())
						Expect(fileContent).To(Equal(json))
					})

					It("returns any error from writing to the setting file", func() {
						fs.WriteFileError = errors.New("fs-write-file-error")

						err := service.LoadSettings()
						Expect(err).To(HaveOccurred())
						Expect(err.Error()).To(ContainSubstring("fs-write-file-error"))
					})
				})
			})

			Context("when settings fetcher fails fetching settings", func() {
				BeforeEach(func() {
					fetcherFuncErr = errors.New("fake-fetch-error")
				})

				Context("when a settings file exists", func() {
					Context("when settings contain at most one dynamic network", func() {
						BeforeEach(func() {
							fs.WriteFile("/setting/path.json", []byte(`{
								"agent_id":"some-agent-id",
								"networks": {"fake-net-1": {"type": "dynamic"}}
							}`))

							fakeDefaultNetworkResolver.GetDefaultNetworkNetwork = Network{
								IP:      "fake-resolved-ip",
								Netmask: "fake-resolved-netmask",
								Gateway: "fake-resolved-gateway",
							}
						})

						It("returns settings from the settings file with resolved network", func() {
							err := service.LoadSettings()
//.........這裏部分代碼省略.........

	})

	Describe("GetSettings", func() {
		Context("when the registry file exists", func() {
			var (
				expectedSettings boshsettings.Settings
			)

			BeforeEach(func() {
				expectedSettings = boshsettings.Settings{
					AgentID: "fake-agent-id",
				}
				settingsJSON, err := json.Marshal(expectedSettings)
				Expect(err).ToNot(HaveOccurred())

				fs.WriteFile("/fake-registry-file-path", settingsJSON)
			})

			It("returns the settings", func() {
				settings, err := fileRegistry.GetSettings()
				Expect(err).ToNot(HaveOccurred())
				Expect(settings).To(Equal(expectedSettings))
			})
		})

		Context("when the registry file does not exist", func() {
			It("returns an error", func() {
				_, err := fileRegistry.GetSettings()
				Expect(err).To(HaveOccurred())
			})
		})

func rootDesc() {
	var mockCtrl *gomock.Controller

	BeforeEach(func() {
		mockCtrl = gomock.NewController(GinkgoT())
	})

	AfterEach(func() {
		mockCtrl.Finish()
	})

	Describe("Run", func() {
		var (
			command        bicmd.Cmd
			fakeFs         *fakesys.FakeFileSystem
			stdOut         *gbytes.Buffer
			stdErr         *gbytes.Buffer
			userInterface  biui.UI
			sha1Calculator crypto.SHA1Calculator
			manifestSHA1   string

			mockDeployer              *mock_deployment.MockDeployer
			mockInstaller             *mock_install.MockInstaller
			mockInstallerFactory      *mock_install.MockInstallerFactory
			mockReleaseExtractor      *mock_release.MockExtractor
			releaseManager            birel.Manager
			mockRegistryServerManager *mock_registry.MockServerManager
			mockRegistryServer        *mock_registry.MockServer
			mockAgentClient           *mock_agentclient.MockAgentClient
			mockAgentClientFactory    *mock_httpagent.MockAgentClientFactory
			mockCloudFactory          *mock_cloud.MockFactory

			fakeCPIRelease *fakebirel.FakeRelease
			logger         boshlog.Logger

			mockBlobstoreFactory *mock_blobstore.MockFactory
			mockBlobstore        *mock_blobstore.MockBlobstore

			mockVMManagerFactory       *mock_vm.MockManagerFactory
			fakeVMManager              *fakebivm.FakeManager
			fakeStemcellExtractor      *fakebistemcell.FakeExtractor
			mockStemcellManager        *mock_stemcell.MockManager
			fakeStemcellManagerFactory *fakebistemcell.FakeManagerFactory

			fakeReleaseSetParser              *fakebirelsetmanifest.FakeParser
			fakeInstallationParser            *fakebiinstallmanifest.FakeParser
			fakeDeploymentParser              *fakebideplmanifest.FakeParser
			mockLegacyDeploymentStateMigrator *mock_config.MockLegacyDeploymentStateMigrator
			setupDeploymentStateService       biconfig.DeploymentStateService
			fakeDeploymentValidator           *fakebideplval.FakeValidator

			directorID          = "generated-director-uuid"
			fakeUUIDGenerator   *fakeuuid.FakeGenerator
			configUUIDGenerator *fakeuuid.FakeGenerator

			fakeStage *fakebiui.FakeStage

			deploymentManifestPath string
			deploymentStatePath    string
			cpiReleaseTarballPath  string
			stemcellTarballPath    string
			extractedStemcell      bistemcell.ExtractedStemcell

			expectDeploy *gomock.Call

			mbusURL = "http://fake-mbus-user:[email protected]"

			releaseSetManifest     birelsetmanifest.Manifest
			boshDeploymentManifest bideplmanifest.Manifest
			installationManifest   biinstallmanifest.Manifest
			cloud                  bicloud.Cloud

			cloudStemcell bistemcell.CloudStemcell

			expectLegacyMigrate        *gomock.Call
			expectStemcellUpload       *gomock.Call
			expectStemcellDeleteUnused *gomock.Call
			expectCPIReleaseExtract    *gomock.Call
			expectInstall              *gomock.Call
			expectNewCloud             *gomock.Call
		)

		BeforeEach(func() {
			logger = boshlog.NewLogger(boshlog.LevelNone)
			stdOut = gbytes.NewBuffer()
			stdErr = gbytes.NewBuffer()
			userInterface = biui.NewWriterUI(stdOut, stdErr, logger)
			fakeFs = fakesys.NewFakeFileSystem()
			fakeFs.EnableStrictTempRootBehavior()
			deploymentManifestPath = "/path/to/manifest.yml"
			deploymentStatePath = "/path/to/manifest-state.json"
			fakeFs.RegisterOpenFile(deploymentManifestPath, &fakesys.FakeFile{
				Stats: &fakesys.FakeFileStats{FileType: fakesys.FakeFileTypeFile},
			})

			fakeFs.WriteFileString(deploymentManifestPath, "")

			mockDeployer = mock_deployment.NewMockDeployer(mockCtrl)
			mockInstaller = mock_install.NewMockInstaller(mockCtrl)
			mockInstallerFactory = mock_install.NewMockInstallerFactory(mockCtrl)
//.........這裏部分代碼省略.........

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.........