Golang FakeFileSystem.RemoveAllError方法代碼示例

			Expect(count).To(Equal(2))
			Expect(countFiles(fakeFs, "/path/to/delete/stuff/in/")).To(Equal(0))
			Expect(countFiles(fakeFs, "/path/to/other/things/in/")).To(Equal(1))
		})

		It("returns an error when glob fails", func() {
			fakeFs.GlobErr = errors.New("couldn't walk")
			fakeFs.WriteFileString("/path/to/delete/stuff/in/delete_me_1.foo", "goodbye")
			fakeFs.WriteFileString("/path/to/delete/stuff/in/delete_me_2.bar", "goodbye")
			count, err := cert.DeleteFiles(fakeFs, "/path/to/delete/stuff/in/", "delete_me_")
			Expect(err).To(HaveOccurred())
			Expect(count).To(Equal(0))
		})

		It("returns an error when RemoveAll() fails", func() {
			fakeFs.RemoveAllError = errors.New("couldn't delete")
			fakeFs.WriteFileString("/path/to/delete/stuff/in/delete_me_1.foo", "goodbye")
			fakeFs.WriteFileString("/path/to/delete/stuff/in/delete_me_2.bar", "goodbye")
			fakeFs.SetGlob("/path/to/delete/stuff/in/delete_me_*", []string{
				"/path/to/delete/stuff/in/delete_me_1.foo",
				"/path/to/delete/stuff/in/delete_me_2.bar",
			})
			count, err := cert.DeleteFiles(fakeFs, "/path/to/delete/stuff/in/", "delete_me_")
			Expect(err).To(HaveOccurred())
			Expect(count).To(Equal(0))
		})
	})

	Describe("cert.Manager implementations", func() {
		var (
			fakeFs      *fakesys.FakeFileSystem

//.........這裏部分代碼省略.........
				})

				Context("when no settings file exists", func() {
					It("returns any error from the fetcher", func() {
						err := service.LoadSettings()
						Expect(err).To(HaveOccurred())
						Expect(err.Error()).To(ContainSubstring("fake-fetch-error"))

						Expect(service.GetSettings()).To(Equal(Settings{}))
					})
				})
			})
		})

		Describe("InvalidateSettings", func() {
			It("removes the settings file", func() {
				fakeSettingsSource.SettingsValue = Settings{}
				fakeSettingsSource.SettingsErr = nil
				service, fs := buildService()

				fs.WriteFile("/setting/path.json", []byte(`{}`))

				err := service.InvalidateSettings()
				Expect(err).ToNot(HaveOccurred())

				Expect(fs.FileExists("/setting/path.json")).To(BeFalse())
			})

			It("returns err if removing settings file errored", func() {
				fakeSettingsSource.SettingsValue = Settings{}
				fakeSettingsSource.SettingsErr = nil
				service, fs := buildService()

				fs.RemoveAllError = errors.New("fs-remove-all-error")

				err := service.InvalidateSettings()
				Expect(err).To(HaveOccurred())
				Expect(err.Error()).To(ContainSubstring("fs-remove-all-error"))
			})
		})

		Describe("GetSettings", func() {
			var (
				loadedSettings Settings
				service        Service
			)

			BeforeEach(func() {
				loadedSettings = Settings{AgentID: "some-agent-id"}
			})

			JustBeforeEach(func() {
				fakeSettingsSource.SettingsValue = loadedSettings
				fakeSettingsSource.SettingsErr = nil
				service, _ = buildService()
				err := service.LoadSettings()
				Expect(err).NotTo(HaveOccurred())
			})

			Context("when there is are no dynamic networks", func() {
				It("returns settings without modifying any networks", func() {
					Expect(service.GetSettings()).To(Equal(loadedSettings))
				})

				It("does not try to determine default network", func() {
					_ = service.GetSettings()

	Describe("RunCommand", func() {
		It("cleans logs directory", func() {
			err := fs.MkdirAll("/fake-base-dir/fake-log-dir-name/", os.FileMode(0750))
			Expect(err).ToNot(HaveOccurred())

			err = fs.WriteFile("/fake-base-dir/fake-log-dir-name/old-file", []byte("test-data"))
			Expect(err).ToNot(HaveOccurred())

			_, 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/old-file")).To(BeFalse())
		})

		It("returns an error if it fails to remove previous logs directory", func() {
			fs.RemoveAllError = errors.New("fake-remove-all-error")

			_, err := runner.RunCommand("fake-log-dir-name", "fake-log-file-name", cmd)
			Expect(err).To(HaveOccurred())
			Expect(err.Error()).To(ContainSubstring("fake-remove-all-error"))
		})

		It("returns an error if it fails to create logs directory", func() {
			fs.MkdirAllError = errors.New("fake-mkdir-all-error")

			_, err := runner.RunCommand("fake-log-dir-name", "fake-log-file-name", cmd)
			Expect(err).To(HaveOccurred())
			Expect(err.Error()).To(ContainSubstring("fake-mkdir-all-error"))
		})

		It("executes given command", func() {

	Describe("Delete", func() {
		It("removes the blob from the blobstore", func() {
			fs.WriteFileString("/fake-file.txt", "fake-file-contents")
			blobID, _, err := blobstore.Create("/fake-file.txt")
			Expect(err).ToNot(HaveOccurred())

			_, err = blobstore.Get(blobID, "")
			Expect(err).ToNot(HaveOccurred())

			err = blobstore.Delete(blobID)
			Expect(err).ToNot(HaveOccurred())

			_, err = blobstore.Get(blobID, "")
			Expect(err).To(HaveOccurred())
			Expect(err.Error()).To(ContainSubstring("doesn't exist"))
		})

		It("returns an error if removing the blob fails", func() {
			fs.RemoveAllError = errors.New("failed to remove")
			fs.WriteFileString("/fake-file.txt", "fake-file-contents")
			blobID, _, err := blobstore.Create("/fake-file.txt")
			Expect(err).ToNot(HaveOccurred())

			err = blobstore.Delete(blobID)
			Expect(err).To(HaveOccurred())
			Expect(err.Error()).To(ContainSubstring("failed to remove"))
		})
	})
})

func init() {
	Describe("prepareNetworkChange", func() {
		var (
			action PrepareNetworkChangeAction
			fs     *fakesys.FakeFileSystem

			settingsService *fakesettings.FakeSettingsService
		)

		BeforeEach(func() {
			fs = fakesys.NewFakeFileSystem()
			settingsService = &fakesettings.FakeSettingsService{}
			action = NewPrepareNetworkChange(fs, settingsService, fakeactions.NewFakeAgentKiller())
		})

		It("is synchronous", func() {
			Expect(action.IsAsynchronous()).To(BeFalse())
		})

		It("is not persistent", func() {
			Expect(action.IsPersistent()).To(BeFalse())
		})

		It("invalidates settings so that load settings cannot fall back on old settings", func() {
			resp, err := action.Run()
			Expect(err).NotTo(HaveOccurred())
			Expect(resp).To(Equal("ok"))

			Expect(settingsService.SettingsWereInvalidated).To(BeTrue())
		})

		Context("when settings invalidation succeeds", func() {
			Context("when the network rules file can be removed", func() {
				It("removes the network rules file", func() {
					fs.WriteFile("/etc/udev/rules.d/70-persistent-net.rules", []byte{})

					resp, err := action.Run()
					Expect(err).NotTo(HaveOccurred())
					Expect(resp).To(Equal("ok"))

					Expect(fs.FileExists("/etc/udev/rules.d/70-persistent-net.rules")).To(BeFalse())
				})
			})

			Context("when the network rules file cannot be removed", func() {
				BeforeEach(func() {
					fs.RemoveAllError = errors.New("fake-remove-all-error")
				})

				It("returns error from removing the network rules file", func() {
					resp, err := action.Run()
					Expect(err).To(HaveOccurred())
					Expect(err.Error()).To(ContainSubstring("fake-remove-all-error"))

					Expect(resp).To(BeNil())
				})
			})
		})

		Context("when settings invalidation fails", func() {
			BeforeEach(func() {
				settingsService.InvalidateSettingsError = errors.New("fake-invalidate-error")
			})

			It("returns error early if settings err invalidating", func() {
				resp, err := action.Run()
				Expect(err).To(HaveOccurred())
				Expect(err.Error()).To(ContainSubstring("fake-invalidate-error"))

				Expect(resp).To(BeNil())
			})

			It("does not remove the network rules file", func() {
				fs.WriteFile("/etc/udev/rules.d/70-persistent-net.rules", []byte{})

				action.Run()
				Expect(fs.FileExists("/etc/udev/rules.d/70-persistent-net.rules")).To(BeTrue())
			})
		})
	})
}