Function FuzzFetcher

core/remotes/docker/fetcher_fuzz_test.go:30–75

(f *testing.F)

)

func FuzzFetcher(f *testing.F) {
	f.Fuzz(func(t *testing.T, data []byte) {
		dataLen := len(data)
		if dataLen == 0 {
			return
		}

		s := httptest.NewServer(http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
			rw.Header().Set("content-range", fmt.Sprintf("bytes %d-%d/%d", 0, dataLen-1, dataLen))
			rw.Header().Set("content-length", strconv.Itoa(dataLen))
			rw.Write(data)
		}))
		defer s.Close()

		u, err := url.Parse(s.URL)
		if err != nil {
			return
		}

		f := dockerFetcher{&dockerBase{
			repository: "nonempty",
		}}
		host := RegistryHost{
			Client: s.Client(),
			Host:   u.Host,
			Scheme: u.Scheme,
			Path:   u.Path,
		}

		ctx := context.Background()
		req := f.request(host, http.MethodGet)
		rc, _, err := f.open(ctx, req, "", 0, true)
		if err != nil {
			return
		}
		b, err := io.ReadAll(rc)
		if err != nil {
			return
		}

		expected := data
		if len(b) != len(expected) {
			t.Fatal("len of request is not equal to len of expected but should be")
		}
	})
}