00000070  2a 13 56 26 47 33 7d 4f  ab 5a fc 9c 9e 8d f4 75  |*.V&G3}O.Z.....u|
00000080  d0 64 16 ba f2 0d 04 ca  5d 94 6b da a8 09 b1 29  |.d......].k....)|
00000090  70 a9 37 1e ac 94 e3 81  60 c3 19 f3 a9 99 6a 11  |p.7.....`.....j.|
000000a0  b1 e7 23 45 8a f5 42 f5  50 76 9f 1e 9e a8 e7 75  |..#E..B.Pv.....u|
000000b0  4a 18 84 80 da 10 ed 83  9a 14 a9 a1 90 54 8e 8b  |J............T..|

func averageDeltaBound(m0, m1 image.Image, b0, b1 image.Rectangle) int64 {
	var sum, n int64
	for y := b0.Min.Y; y < b0.Max.Y; y++ {
		for x := b0.Min.X; x < b0.Max.X; x++ {
			c0 := m0.At(x, y)
			c1 := m1.At(x-b0.Min.X+b1.Min.X, y-b0.Min.Y+b1.Min.Y)
			r0, g0, b0, _ := c0.RGBA()
			r1, g1, b1, _ := c1.RGBA()
			sum += delta(r0, r1)
			sum += delta(g0, g1)
			sum += delta(b0, b1)
			n += 3
		}
	}
	return sum / n
}

00000320  1f 56 2c ad 88 2b 5c 8d  4f 36 93 d6 a3 b1 32 4a  |.V,..+\.O6....2J|
00000330  ef 0f e6 db 82 1c f2 ea  38 08 2a 62 8b a3 bd 4e  |........8.*b...N|
00000340  8b 2a ae eb 0e e5 f1 88  ff 3c de f8 ed d7 c3 07  |.*.......<......|
00000350  05 92 bb e5 6d 15 23 c8  54 19 a6 cf d1 4f e2 b1  |....m.#.T....O..|
00000360  a3 4d ff 6f 22 32 5b 58  f7 58 c1 9f 58 59 b5 e2  |.M.o"2[X.X..XY..|

>>> Flow 2 (server to client)
00000000  16 03 01 00 5d 02 00 00  59 03 01 60 8a bf 2b 6f  |....]...Y..`..+o|
00000010  c1 f0 f3 7b d4 78 2c d9  15 3f 33 6a 4b 96 aa 83  |...{.x,..?3jK...|
00000020  54 ae 66 8f 0f e7 b1 68  31 00 39 20 d8 4d f2 2c  |T.f....h1.9 .M.,|
00000030  8b 85 98 d6 af e0 07 98  d5 cb 89 72 fb 8d c0 73  |...........r...s|
00000040  cc 68 cf 58 21 4a 8a fc  c3 8e 90 0a c0 09 00 00  |.h.X!J..........|

00000190  9a b2 18 9e f2 b1 de 1d  7e 6f 76 95 a9 ba e7 5d  |........~ov....]|
000001a0  a8 16 6c 9c f7 09 d3 37  e4 4b 2b 36 7c 01 ad 41  |..l....7.K+6|..A|
000001b0  d2 32 d8 c3 d2 93 f9 10  6b 8e 95 b9 2c 17 8a a3  |.2......k...,...|
000001c0  44 48 bc 59 13 83 16 04  88 a4 81 5c 25 0d 98 0c  |DH.Y.......\%...|
000001d0  ac 11 b1 28 56 be 1d cd  61 62 84 09 bf d6 80 c6  |...(V...ab......|

00000190  9a b2 18 9e f2 b1 de 1d  7e 6f 76 95 a9 ba e7 5d  |........~ov....]|
000001a0  a8 16 6c 9c f7 09 d3 37  e4 4b 2b 36 7c 01 ad 41  |..l....7.K+6|..A|
000001b0  d2 32 d8 c3 d2 93 f9 10  6b 8e 95 b9 2c 17 8a a3  |.2......k...,...|
000001c0  44 48 bc 59 13 83 16 04  88 a4 81 5c 25 0d 98 0c  |DH.Y.......\%...|
000001d0  ac 11 b1 28 56 be 1d cd  61 62 84 09 bf d6 80 c6  |...(V...ab......|

>>> Flow 2 (server to client)
00000000  16 03 03 00 7a 02 00 00  76 03 03 40 ad 79 0c ad  |....z...v..@.y..|
00000010  83 38 58 82 dc b2 5a d1  e2 de f5 43 99 72 8a 93  |.8X...Z....C.r..|
00000020  ba b1 ea 17 21 52 a7 e9  ed dc 48 20 00 00 00 00  |....!R....H ....|
00000030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000040  00 00 00 00 00 00 00 00  00 00 00 00 13 03 00 00  |................|

00000190  9a b2 18 9e f2 b1 de 1d  7e 6f 76 95 a9 ba e7 5d  |........~ov....]|
000001a0  a8 16 6c 9c f7 09 d3 37  e4 4b 2b 36 7c 01 ad 41  |..l....7.K+6|..A|
000001b0  d2 32 d8 c3 d2 93 f9 10  6b 8e 95 b9 2c 17 8a a3  |.2......k...,...|
000001c0  44 48 bc 59 13 83 16 04  88 a4 81 5c 25 0d 98 0c  |DH.Y.......\%...|
000001d0  ac 11 b1 28 56 be 1d cd  61 62 84 09 bf d6 80 c6  |...(V...ab......|

        createParameterizedTransformWithSensitivity(DirectorySensitivity.DEFAULT)
        file('augmented').mkdir()
        file('augmented/a').mkdir()
        file('augmented/b').mkdir()
        file('augmented/b/b1').createFile()

        file('bar/foo').mkdir()
        file('bar/foo/c').mkdir()
        file('bar/foo/d').mkdir()
        file('bar/foo/d1').createFile()

        when:

    val reservedFlag3 = b0 and B0_FLAG_RSV3 != 0
    if (reservedFlag3) throw ProtocolException("Unexpected rsv3 flag")

    val b1 = source.readByte() and 0xff

    val isMasked = b1 and B1_FLAG_MASK != 0
    if (isMasked == isClient) {
      // Masked payloads must be read on the server. Unmasked payloads must be read on the client.
      throw ProtocolException(