err = os.Symlink(tmp, symlinkDir)
Expect(err).NotTo(HaveOccurred())
Expect(os.MkdirAll(path.Join(tmp, "a", "test"), 0700)).To(Succeed())
Expect(ioutil.WriteFile(path.Join(tmp, "a", "test", "file"), []byte(""), 0700)).To(Succeed())
_, _, _, err = fetcher.Fetch(logger, &url.URL{Path: symlinkDir}, "", 0)
Expect(err).NotTo(HaveOccurred())
})
})
Context("when the path does not exist", func() {
It("returns a reasonable error", func() {
_, _, _, err := fetcher.Fetch(logger, &url.URL{Path: "does-not-exist"}, "", 0)
Expect(err).To(HaveOccurred())
})
It("doesn't try to register anything in the graph", func() {
fetcher.Fetch(logger, &url.URL{Path: "does-not-exist"}, "", 0)
Expect(fakeCake.RegisterCallCount()).To(Equal(0))
})
})
})
})
type UnderscoreIDer struct{}
func (UnderscoreIDer) ProvideID(path string) layercake.ID {
return layercake.DockerImageID(strings.Replace(path, "/", "_", -1))
}
