It("returns error if inner blobstore cleaning up fails", func() {
innerBlobstore.DeleteErr = errors.New("fake-clean-up-error")
err := retryableBlobstore.Delete("/some/file")
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-clean-up-error"))
})
})
Describe("Create", func() {
Context("when inner blobstore succeeds before maximum number of create tries (first time)", func() {
It("returns blobID and fingerprint without an error", func() {
innerBlobstore.CreateBlobID = "fake-blob-id"
innerBlobstore.CreateFingerprint = "fake-fingerprint"
blobID, fingerprint, err := retryableBlobstore.Create("fake-file-name")
Expect(err).ToNot(HaveOccurred())
Expect(blobID).To(Equal("fake-blob-id"))
Expect(fingerprint).To(Equal("fake-fingerprint"))
Expect(innerBlobstore.CreateFileNames).To(Equal([]string{"fake-file-name"}))
})
})
Context("when inner blobstore succeed exactly at maximum number of create tries", func() {
It("returns blobID and fingerprint without an error", func() {
innerBlobstore.CreateBlobIDs = []string{"", "", "fake-last-blob-id"}
innerBlobstore.CreateFingerprints = []string{"", "", "fake-last-fingerprint"}
innerBlobstore.CreateErrs = []error{
errors.New("fake-create-err-1"),
errors.New("fake-create-err-2"),
})
It("returns error if inner blobstore cleaning up fails", func() {
innerBlobstore.DeleteErr = errors.New("fake-clean-up-error")
err := sha1VerifiableBlobstore.Delete("/some/file")
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-clean-up-error"))
})
})
Describe("Create", func() {
It("delegates to inner blobstore to create blob and returns sha1 of returned blob", func() {
innerBlobstore.CreateBlobID = "fake-blob-id"
blobID, sha1, err := sha1VerifiableBlobstore.Create(fixturePath)
Expect(err).ToNot(HaveOccurred())
Expect(blobID).To(Equal("fake-blob-id"))
Expect(sha1).To(Equal(fixtureSHA1))
Expect(innerBlobstore.CreateFileNames[0]).To(Equal(fixturePath))
})
It("returns error if inner blobstore blob creation fails", func() {
innerBlobstore.CreateErr = errors.New("fake-create-error")
_, _, err := sha1VerifiableBlobstore.Create(fixturePath)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-create-error"))
})
})
It("returns an error if the inner blobstore fails to clean up", func() {
innerBlobstore.CleanUpErr = errors.New("error cleaning up")
err := cascadingBlobstore.CleanUp("randomFile")
Expect(err).ToNot(BeNil())
Expect(err.Error()).To(Equal("error cleaning up"))
})
})
Describe("Create", func() {
It("delegates the action to the inner blobstore", func() {
innerBlobstore.CreateErr = nil
innerBlobstore.CreateBlobID = "createBlobId"
createdBlobID, err := cascadingBlobstore.Create("createdFile")
Expect(err).To(BeNil())
Expect(createdBlobID).To(Equal("createBlobId"))
Expect(innerBlobstore.CreateFileNames).ShouldNot(BeEmpty())
Expect(len(innerBlobstore.CreateFileNames)).To(Equal(1))
Expect(innerBlobstore.CreateFileNames[0]).To(Equal("createdFile"))
})
It("returns an error if the inner blobstore fails to create", func() {
innerBlobstore.CreateErr = errors.New("error creating")
_, err := cascadingBlobstore.Create("createdFile")
It("returns error if inner blobstore cleaning up fails", func() {
innerBlobstore.DeleteErr = errors.New("fake-clean-up-error")
err := retryableBlobstore.Delete("/some/file")
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-clean-up-error"))
})
})
Describe("Create", func() {
Context("when inner blobstore succeeds before maximum number of create tries (first time)", func() {
It("returns blobID and fingerprint without an error", func() {
innerBlobstore.CreateBlobID = "fake-blob-id"
blobID, err := retryableBlobstore.Create("fake-file-name")
Expect(err).ToNot(HaveOccurred())
Expect(blobID).To(Equal("fake-blob-id"))
Expect(innerBlobstore.CreateFileNames).To(Equal([]string{"fake-file-name"}))
})
})
Context("when inner blobstore succeed exactly at maximum number of create tries", func() {
It("returns blobID and fingerprint without an error", func() {
innerBlobstore.CreateBlobIDs = []string{"", "", "fake-last-blob-id"}
innerBlobstore.CreateErrs = []error{
errors.New("fake-create-err-1"),
errors.New("fake-create-err-2"),
nil,
}
})
It("returns error if inner blobstore cleaning up fails", func() {
innerBlobstore.DeleteErr = errors.New("fake-clean-up-error")
err := checksumVerifiableBlobstore.Delete("/some/file")
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-clean-up-error"))
})
})
Describe("Create", func() {
It("delegates to inner blobstore to create blob and returns sha1 of returned blob", func() {
innerBlobstore.CreateBlobID = "fake-blob-id"
blobID, err := checksumVerifiableBlobstore.Create(fixturePath)
Expect(err).ToNot(HaveOccurred())
Expect(blobID).To(Equal("fake-blob-id"))
Expect(innerBlobstore.CreateFileNames[0]).To(Equal(fixturePath))
})
It("returns error if inner blobstore blob creation fails", func() {
innerBlobstore.CreateErr = errors.New("fake-create-error")
_, err := checksumVerifiableBlobstore.Create(fixturePath)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-create-error"))
})
})