Golang FakeCompressor.DecompressFileToDirErr方法代码示例

					err := extractor.Extract(blobID, blobSHA1, targetDir)
					Expect(err).ToNot(HaveOccurred())
					Expect(fs.FileExists(targetDir)).To(BeTrue())
					Expect(compressor.DecompressFileToDirTarballPaths).To(ContainElement(fileName))
				})

				It("does not re-create the target package dir", func() {
					fs.MkdirAllError = fakeError
					err := extractor.Extract(blobID, blobSHA1, targetDir)
					Expect(err).ToNot(HaveOccurred())
				})

				Context("and decompressing the blob fails", func() {
					It("returns an error and doesn't remove the target dir", func() {
						compressor.DecompressFileToDirErr = fakeError
						Expect(fs.FileExists(targetDir)).To(BeTrue())
						err := extractor.Extract(blobID, blobSHA1, targetDir)
						Expect(err).To(HaveOccurred())
						Expect(err.Error()).To(Equal("Decompressing compiled package: BlobID: 'fake-blob-id', BlobSHA1: 'fake-sha1': Initial error"))
						Expect(fs.FileExists(targetDir)).To(BeTrue())
					})
				})
			})

			Context("when getting the blob from the blobstore errors", func() {
				BeforeEach(func() {
					blobstore.GetError = fakeError
				})

				It("returns an error", func() {

				It("returns an error", func() {
					_, err := releaseExtractor.Extract(releaseTarballPath)
					Expect(err).To(HaveOccurred())
					Expect(err.Error()).To(ContainSubstring("fake-error"))
				})

				It("deletes the destination file path", func() {
					releaseExtractor.Extract(releaseTarballPath)
					Expect(fakeFS.FileExists("/extracted-release-path")).To(BeFalse())
				})
			})

			Context("and the tarball cannot be read", func() {
				BeforeEach(func() {
					compressor.DecompressFileToDirErr = bosherr.Error("fake-error")
				})

				It("returns an error", func() {
					_, err := releaseExtractor.Extract(releaseTarballPath)
					Expect(err).To(HaveOccurred())
					Expect(err.Error()).To(ContainSubstring("Reading release from '/fake/release.tgz'"))
				})

				It("deletes the destination file path", func() {
					releaseExtractor.Extract(releaseTarballPath)
					Expect(fakeFS.FileExists("/extracted-release-path")).To(BeFalse())
				})
			})
		})

func init() {
	Describe("compiledPackageApplier", func() {
		var (
			packagesBc *fakebc.FakeBundleCollection
			blobstore  *fakeblob.FakeBlobstore
			compressor *fakecmd.FakeCompressor
			fs         *fakesys.FakeFileSystem
			logger     boshlog.Logger
			applier    Applier
		)

		BeforeEach(func() {
			packagesBc = fakebc.NewFakeBundleCollection()
			blobstore = fakeblob.NewFakeBlobstore()
			compressor = fakecmd.NewFakeCompressor()
			fs = fakesys.NewFakeFileSystem()
			logger = boshlog.NewLogger(boshlog.LevelNone)
			applier = NewCompiledPackageApplier(packagesBc, true, blobstore, compressor, fs, logger)
		})

		Describe("Prepare & Apply", func() {
			var (
				pkg    models.Package
				bundle *fakebc.FakeBundle
			)

			BeforeEach(func() {
				pkg, bundle = buildPkg(packagesBc)
			})

			ItInstallsPkg := func(act func() error) {
				It("returns error when installing package fails", func() {
					bundle.InstallError = errors.New("fake-install-error")

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

				It("downloads and later cleans up downloaded package blob", func() {
					blobstore.GetFileName = "/fake-blobstore-file-name"

					err := act()
					Expect(err).ToNot(HaveOccurred())
					Expect(blobstore.GetBlobIDs[0]).To(Equal("fake-blobstore-id"))
					Expect(blobstore.GetFingerprints[0]).To(Equal("fake-blob-sha1"))

					// downloaded file is cleaned up
					Expect(blobstore.CleanUpFileName).To(Equal("/fake-blobstore-file-name"))
				})

				It("returns error when downloading package blob fails", func() {
					blobstore.GetError = errors.New("fake-get-error")

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

				It("decompresses package blob to tmp path and later cleans it up", func() {
					fs.TempDirDir = "/fake-tmp-dir"
					blobstore.GetFileName = "/fake-blobstore-file-name"

					var tmpDirExistsBeforeInstall bool

					bundle.InstallCallBack = func() {
						tmpDirExistsBeforeInstall = true
					}

					err := act()
					Expect(err).ToNot(HaveOccurred())

					Expect(compressor.DecompressFileToDirTarballPaths[0]).To(Equal("/fake-blobstore-file-name"))
					Expect(compressor.DecompressFileToDirDirs[0]).To(Equal("/fake-tmp-dir"))

					// tmp dir exists before bundle install
					Expect(tmpDirExistsBeforeInstall).To(BeTrue())

					// tmp dir is cleaned up after install
					Expect(fs.FileExists(fs.TempDirDir)).To(BeFalse())
				})

				It("returns error when temporary directory creation fails", func() {
					fs.TempDirError = errors.New("fake-filesystem-tempdir-error")

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

				It("returns error when decompressing package blob fails", func() {
					compressor.DecompressFileToDirErr = errors.New("fake-decompress-error")

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

				It("installs bundle from decompressed tmp path of a package blob", func() {
					fs.TempDirDir = "/fake-tmp-dir"
//.........这里部分代码省略.........

				CloudProperties: biproperty.Map{
					"infrastructure": "aws",
					"ami": biproperty.Map{
						"us-east-1": "fake-ami-version",
					},
				},
			},
			"fake-extracted-path",
			fs,
		)
		Expect(stemcell).To(Equal(expectedStemcell))
	})

	Context("when extracting stemcell fails", func() {
		BeforeEach(func() {
			compressor.DecompressFileToDirErr = errors.New("fake-decompress-error")
		})

		It("returns an error", func() {
			_, err := stemcellReader.Read("fake-stemcell-path", "fake-extracted-path")
			Expect(err).To(HaveOccurred())
			Expect(err.Error()).To(ContainSubstring("fake-decompress-error"))
		})
	})

	Context("when reading stemcell manifest fails", func() {
		BeforeEach(func() {
			fs.ReadFileError = errors.New("fake-read-error")
		})

		It("returns an error", func() {

//.........这里部分代码省略.........
					Expect(err.Error()).To(ContainSubstring("fake-filesystem-tempdir-error"))
				})

				It("can process sha1 checksums in the new format", func() {
					blobstore.GetFileName = "/fake-blobstore-file-name"
					job.Source.Sha1 = "sha1:fake-blob-sha1"

					err := act()
					Expect(err).ToNot(HaveOccurred())
					Expect(blobstore.GetBlobIDs[0]).To(Equal("fake-blobstore-id"))
					Expect(blobstore.GetFingerprints[0]).To(Equal(boshcrypto.NewDigest("sha1", "fake-blob-sha1")))
				})

				It("can process sha2 checksums", func() {
					blobstore.GetFileName = "/fake-blobstore-file-name"
					job.Source.Sha1 = "sha256:fake-blob-sha256"

					err := act()
					Expect(err).ToNot(HaveOccurred())
					Expect(blobstore.GetBlobIDs[0]).To(Equal("fake-blobstore-id"))
					Expect(blobstore.GetFingerprints[0]).To(Equal(boshcrypto.NewDigest("sha256", "fake-blob-sha256")))
				})

				It("returns error when given and unsupported fingerprint", func() {
					blobstore.GetFileName = "/fake-blobstore-file-name"
					job.Source.Sha1 = "unsupported:checksum"

					err := act()
					Expect(err).To(HaveOccurred())
					Expect(err.Error()).To(ContainSubstring("Parsing job blob digest"))
				})

				It("returns error when decompressing job template fails", func() {
					compressor.DecompressFileToDirErr = errors.New("fake-decompress-error")

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

				It("returns error when walking the tree of files fails", func() {
					fs.WalkErr = errors.New("fake-walk-error")

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

				It("installs bundle from decompressed tmp path of a job template", func() {
					var installedBeforeDecompression bool

					compressor.DecompressFileToDirCallBack = func() {
						installedBeforeDecompression = bundle.Installed
					}

					err := act()
					Expect(err).ToNot(HaveOccurred())

					// bundle installation did not happen before decompression
					Expect(installedBeforeDecompression).To(BeFalse())

					// make sure that bundle install happened after decompression
					Expect(bundle.InstallSourcePath).To(Equal("/fake-tmp-dir/fake-path-in-archive"))
				})

				It("sets executable bit for the bin and config directories", func() {