b.mu.RLock()
	defer b.mu.RUnlock()
	dst := make(map[string]metacache, len(b.caches))
	for k, v := range b.caches {
		dst[k] = v
	}
	// Copy indexes
	dst2 := make(map[string][]string, len(b.cachesRoot))
	for k, v := range b.cachesRoot {
		tmp := make([]string, len(v))
		copy(tmp, v)
		dst2[k] = tmp
	}

	return dst, dst2
}

// deleteAll will delete all on disk data for ALL caches.

			testEqual(t, `AppendDecode("", %q) = %q, want %q`, p.encoded, string(dst2), p.decoded)
			if len(dst) > 0 && len(dst2) > 0 && &dst[0] != &dst2[0] {
				t.Errorf("unexpected capacity growth: got %d, want %d", cap(dst2), cap(dst))
			}
		}
	}
}

func TestDecoder(t *testing.T) {
	for _, p := range pairs {
		decoder := NewDecoder(StdEncoding, strings.NewReader(p.encoded))

     name: https-ports2
     protocol: HTTP
   resolution: DNS

---

apiVersion: networking.istio.io/v1alpha3
kind: ServiceEntry
metadata:
  name: external-svc-dst
  namespace: testns
spec:
   hosts:
   - dst.extsvc.com
#   - *.dst2.extsvc.com
   ports:
   - number: 8001
     name: extsvc-http
     protocol: HTTP
   resolution: NONE

---


apiVersion: networking.istio.io/v1alpha3

		testEqual(t, `AppendDecode("", %q) = %q, want %q`, p.encoded, string(dst2), p.decoded)
		if len(dst) > 0 && len(dst2) > 0 && &dst[0] != &dst2[0] {
			t.Errorf("unexpected capacity growth: got %d, want %d", cap(dst2), cap(dst))
		}
	}
}

func TestDecoder(t *testing.T) {
	for _, p := range pairs {
		decoder := NewDecoder(StdEncoding, strings.NewReader(p.encoded))

				})
			}
		})
	})
	t.Run("DoesntTryInAppendMode", func(t *testing.T) {
		dst, src, data, hook := newCopyFileRangeTest(t, 42)

		dst2, err := OpenFile(dst.Name(), O_RDWR|O_APPEND, 0755)
		if err != nil {
			t.Fatal(err)
		}
		defer dst2.Close()

		if _, err := io.Copy(dst2, src); err != nil {
			t.Fatal(err)
		}
		if hook.called {

	&& clobber(move)
	=> (Zero {t} [n] dst1 mem)
(Move {t} [n] dst1 src1 move:(Move {t} [n] dst2 _ mem))
	&& move.Uses == 1
	&& isSamePtr(dst1, dst2) && disjoint(src1, n, dst2, n)
	&& clobber(move)
	=> (Move {t} [n] dst1 src1 mem)
(Zero {t} [n] dst1 vardef:(VarDef {x} move:(Move {t} [n] dst2 _ mem)))
	&& move.Uses == 1 && vardef.Uses == 1
	&& isSamePtr(dst1, dst2)
	&& clobber(move, vardef)

			break
		}
		v.reset(OpMove)
		v.AuxInt = int64ToAuxInt(n)
		v.Aux = typeToAux(t)
		v.AddArg3(dst1, src1, mem)
		return true
	}
	// match: (Move {t} [n] dst1 src1 vardef:(VarDef {x} move:(Move {t} [n] dst2 _ mem)))
	// cond: move.Uses == 1 && vardef.Uses == 1 && isSamePtr(dst1, dst2) && disjoint(src1, n, dst2, n) && clobber(move, vardef)

// n <= len(src), If err == nil, n will be len(src). It calls Reset on t.
func Append(t Transformer, dst, src []byte) (result []byte, n int, err error) {
	if len(dst) == cap(dst) {
		n := len(src) + len(dst) // It is okay for this to be 0.
		b := make([]byte, n)
		dst = b[:copy(b, dst)]
	}
	return doAppend(t, len(dst), dst[:cap(dst)], src)
}

// n <= len(src), If err == nil, n will be len(src). It calls Reset on t.
func Append(t Transformer, dst, src []byte) (result []byte, n int, err error) {
	if len(dst) == cap(dst) {
		n := len(src) + len(dst) // It is okay for this to be 0.
		b := make([]byte, n)
		dst = b[:copy(b, dst)]
	}
	return doAppend(t, len(dst), dst[:cap(dst)], src)
}

	b.StopTimer()

	var dst Image
	switch dcm {
	case color.RGBAModel:
		dst1 := image.NewRGBA(image.Rect(0, 0, dstw, dsth))
		for y := 0; y < dsth; y++ {
			for x := 0; x < dstw; x++ {
				dst1.SetRGBA(x, y, color.RGBA{
					uint8(5 * x % 0x100),
					uint8(7 * y % 0x100),
					uint8((7*x + 5*y) % 0x100),
					0xff,
				})
			}
		}
		dst = dst1
	case color.RGBA64Model: