Golang FakePackageApplier.KeepOnlyErr方法代碼示例

func init() {
	Describe("concreteCompiler", func() {
		var (
			compiler       Compiler
			compressor     *fakecmd.FakeCompressor
			blobstore      *fakeblobstore.FakeBlobstore
			fs             *fakesys.FakeFileSystem
			runner         *fakesys.FakeCmdRunner
			packageApplier *fakepa.FakePackageApplier
			packagesBc     *fakebc.FakeBundleCollection
		)

		BeforeEach(func() {
			compressor = fakecmd.NewFakeCompressor()
			blobstore = &fakeblobstore.FakeBlobstore{}
			fs = fakesys.NewFakeFileSystem()
			runner = fakesys.NewFakeCmdRunner()
			packageApplier = fakepa.NewFakePackageApplier()
			packagesBc = fakebc.NewFakeBundleCollection()

			compiler = NewConcreteCompiler(
				compressor,
				blobstore,
				fs,
				runner,
				FakeCompileDirProvider{Dir: "/fake-compile-dir"},
				packageApplier,
				packagesBc,
			)
		})

		BeforeEach(func() {
			fs.MkdirAll("/fake-compile-dir", os.ModePerm)
		})

		Describe("Compile", func() {
			var (
				bundle  *fakebc.FakeBundle
				pkg     Package
				pkgDeps []boshmodels.Package
			)

			BeforeEach(func() {
				bundle = packagesBc.FakeGet(boshmodels.Package{
					Name:    "pkg_name",
					Version: "pkg_version",
				})

				bundle.InstallPath = "/fake-dir/data/packages/pkg_name/pkg_version"
				bundle.EnablePath = "/fake-dir/packages/pkg_name"

				compressor.CompressFilesInDirTarballPath = "/tmp/compressed-compiled-package"

				pkg, pkgDeps = getCompileArgs()
			})

			It("returns blob id and sha1 of created compiled package", func() {
				blobstore.CreateBlobID = "fake-blob-id"
				blobstore.CreateFingerprint = "fake-blob-sha1"

				blobID, sha1, err := compiler.Compile(pkg, pkgDeps)
				Expect(err).ToNot(HaveOccurred())

				Expect(blobID).To(Equal("fake-blob-id"))
				Expect(sha1).To(Equal("fake-blob-sha1"))
			})

			It("cleans up all packages before applying dependent packages", func() {
				_, _, err := compiler.Compile(pkg, pkgDeps)
				Expect(err).ToNot(HaveOccurred())
				Expect(packageApplier.ActionsCalled).To(Equal([]string{"KeepOnly", "Apply", "Apply"}))
				Expect(packageApplier.KeptOnlyPackages).To(BeEmpty())
			})

			It("returns an error if cleaning up packages fails", func() {
				packageApplier.KeepOnlyErr = errors.New("fake-keep-only-error")

				_, _, err := compiler.Compile(pkg, pkgDeps)
				Expect(err).To(HaveOccurred())
				Expect(err.Error()).To(ContainSubstring("fake-keep-only-error"))
			})

			It("fetches source package from blobstore", func() {
				_, _, err := compiler.Compile(pkg, pkgDeps)
				Expect(err).ToNot(HaveOccurred())

				Expect(blobstore.GetBlobIDs[0]).To(Equal("blobstore_id"))
				Expect(blobstore.GetFingerprints[0]).To(Equal("sha1"))
			})

			It("returns an error if removing compile target directory during uncompression fails", func() {
				fs.RegisterRemoveAllError("/fake-compile-dir/pkg_name", errors.New("fake-remove-error"))

				_, _, err := compiler.Compile(pkg, pkgDeps)
				Expect(err).To(HaveOccurred())
				Expect(err.Error()).To(ContainSubstring("fake-remove-error"))
			})

			It("returns an error if creating compile target directory during uncompression fails", func() {
				fs.RegisterMkdirAllError("/fake-compile-dir/pkg_name", errors.New("fake-mkdir-error"))
//.........這裏部分代碼省略.........

//.........這裏部分代碼省略.........

			ItUpdatesPackages := func(act func() error) {
				var packageApplier *fakepa.FakePackageApplier

				BeforeEach(func() {
					packageApplier = fakepa.NewFakePackageApplier()
					packageApplierProvider.JobSpecificPackageAppliers[job.Name] = packageApplier
				})

				It("applies each package that job depends on and then cleans up packages", func() {
					err := act()
					Expect(err).ToNot(HaveOccurred())
					Expect(packageApplier.ActionsCalled).To(Equal([]string{"Apply", "Apply", "KeepOnly"}))
					Expect(len(packageApplier.AppliedPackages)).To(Equal(2)) // present
					Expect(packageApplier.AppliedPackages).To(Equal(job.Packages))
				})

				It("returns error when applying package that job depends on fails", func() {
					packageApplier.ApplyError = errors.New("fake-apply-err")

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

				It("keeps only currently required packages but does not completely uninstall them", func() {
					err := act()
					Expect(err).ToNot(HaveOccurred())
					Expect(len(packageApplier.KeptOnlyPackages)).To(Equal(2)) // present
					Expect(packageApplier.KeptOnlyPackages).To(Equal(job.Packages))
				})

				It("returns error when keeping only currently required packages fails", func() {
					packageApplier.KeepOnlyErr = errors.New("fake-keep-only-err")

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

			Describe("Prepare", func() {
				act := func() error { return applier.Prepare(job) }

				It("return an error if getting file bundle fails", func() {
					jobsBc.GetErr = errors.New("fake-get-bundle-error")

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

				It("returns an error if checking for installed path fails", func() {
					bundle.IsInstalledErr = errors.New("fake-is-installed-error")

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

				Context("when job is already installed", func() {
					BeforeEach(func() {
						bundle.Installed = true
					})

					It("does not install", func() {

//.........這裏部分代碼省略.........
					&fakeas.FakeApplySpec{JobResults: []models.Job{job}},
				)
				Expect(err).ToNot(HaveOccurred())
				Expect(jobApplier.AppliedJobs).To(Equal([]models.Job{job}))
			})

			It("apply errs when applying jobs errs", func() {
				job := buildJob()

				jobApplier.ApplyError = errors.New("fake-apply-job-error")

				err := applier.Apply(
					&fakeas.FakeApplySpec{},
					&fakeas.FakeApplySpec{JobResults: []models.Job{job}},
				)
				Expect(err).To(HaveOccurred())
				Expect(err.Error()).To(ContainSubstring("fake-apply-job-error"))
			})

			It("asked jobApplier to keep only the jobs in the desired and current specs", func() {
				currentJob := buildJob()
				desiredJob := buildJob()

				err := applier.Apply(
					&fakeas.FakeApplySpec{JobResults: []models.Job{currentJob}},
					&fakeas.FakeApplySpec{JobResults: []models.Job{desiredJob}},
				)
				Expect(err).ToNot(HaveOccurred())

				Expect(jobApplier.KeepOnlyJobs).To(Equal([]models.Job{currentJob, desiredJob}))
			})

			It("returns error when jobApplier fails to keep only the jobs in the desired and current specs", func() {
				jobApplier.KeepOnlyErr = errors.New("fake-keep-only-error")

				currentJob := buildJob()
				desiredJob := buildJob()

				err := applier.Apply(
					&fakeas.FakeApplySpec{JobResults: []models.Job{currentJob}},
					&fakeas.FakeApplySpec{JobResults: []models.Job{desiredJob}},
				)
				Expect(err).To(HaveOccurred())
				Expect(err.Error()).To(ContainSubstring("fake-keep-only-error"))
			})

			It("apply applies packages", func() {
				pkg1 := buildPackage()
				pkg2 := buildPackage()

				err := applier.Apply(
					&fakeas.FakeApplySpec{},
					&fakeas.FakeApplySpec{PackageResults: []models.Package{pkg1, pkg2}},
				)
				Expect(err).ToNot(HaveOccurred())
				Expect(packageApplier.AppliedPackages).To(Equal([]models.Package{pkg1, pkg2}))
			})

			It("apply errs when applying packages errs", func() {
				pkg := buildPackage()

				packageApplier.ApplyError = errors.New("fake-apply-package-error")

				err := applier.Apply(
					&fakeas.FakeApplySpec{},
					&fakeas.FakeApplySpec{PackageResults: []models.Package{pkg}},