fileName, err := blobstore.Get("fake-blob-id", "")
			Expect(err).ToNot(HaveOccurred())

			Expect(len(runner.RunCommands)).To(Equal(1))
			Expect(runner.RunCommands[0]).To(Equal([]string{
				"bosh-blobstore-fake-provider", "-c", configPath, "get",
				"fake-blob-id",
				tempFile.Name(),
			}))

			Expect(fileName).To(Equal(tempFile.Name()))
			Expect(fs.FileExists(tempFile.Name())).To(BeTrue())
		})

		It("external get errs when temp file create errs", func() {
			fs.TempFileError = errors.New("fake-error")

			fileName, err := blobstore.Get("fake-blob-id", "")
			Expect(err).To(HaveOccurred())
			Expect(err.Error()).To(ContainSubstring("fake-error"))

			Expect(fileName).To(BeEmpty())
		})

		It("external get errs when external cli errs", func() {
			tempFile, err := fs.TempFile("bosh-blobstore-external-TestGetErrsWhenExternalCliErrs")
			Expect(err).ToNot(HaveOccurred())

			fs.ReturnTempFile = tempFile
			defer fs.RemoveAll(tempFile.Name())
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			Expect(err).To(HaveOccurred())
			Expect(err.Error()).To(ContainSubstring("failed"))
		})

		It("cleans temporary files", func() {
			_, _, err := scriptRunner.Run("")
			Expect(err).ToNot(HaveOccurred())

			Expect(fs.FileExists("/fake-temp-file")).To(BeFalse())
			Expect(fs.FileExists("/fake-temp-file.fake-ext")).To(BeFalse())
		})

		Context("filesystem errors", func() {
			Context("when creating Tempfile fails", func() {
				It("errors out", func() {
					fs.TempFileError = errors.New("boo")

					_, _, err := scriptRunner.Run("")
					Expect(err.Error()).To(Equal("Creating tempfile: boo"))
				})
			})

			Context("when writing to the Tempfile fails", func() {
				It("errors out", func() {
					fs.WriteFileError = errors.New("foo")

					_, _, err := scriptRunner.Run("")
					Expect(err).To(HaveOccurred())
					Expect(err.Error()).To(Equal("Writing to tempfile: foo"))
				})
			})