00000260  13 21 e0 ec 1b d7 d8 aa  06 a0 0e d5 86 6f ba 1e  |.!...........o..|
00000270  97 e2 8c 9b 86 e2 8a 4d  62 1a bd 35 0e 2d 63 18  |.......Mb..5.-c.|
00000280  a1 1f 7c ed fc 3b 89 c2  00 6d da 01 42 0a 47 95  |..|..;...m..B.G.|
00000290  12 8e 01 82 62 58 f9 96  eb a9 aa c3 f8 96 ec 20  |....bX......... |
000002a0  e1 65 a9 46 a8 af 4b 7c  aa 29 ee 9c 48 18 b3 4a  |.e.F..K|.)..H..J|

00000010  62 43 15 28 da ac 5f bb  29 07 30 ff f6 84 af c4  |bC.(.._.).0.....|
00000020  cf c2 ed 90 99 5f 58 cb  3b 74 14 03 03 00 01 01  |....._X.;t......|
00000030  16 03 03 00 20 aa 8c 9c  ab fb ab ed 5b 2e 3e 4b  |.... .......[.>K|
00000040  92 cd 18 dd ac ce af 1a  b9 f2 df aa 7f a1 d2 ad  |................|
00000050  0e 8a 67 03 3f                                    |..g.?|
>>> Flow 4 (server to client)

000000e0  30 05 06 03 2b 65 70 03  21 00 3f e2 15 2e e6 e3  |0...+ep.!.?.....|
000000f0  ef 3f 4e 85 4a 75 77 a3  64 9e ed e0 bf 84 2c cc  |.?N.Juw.d.....,.|
00000100  92 26 8f fa 6f 34 83 aa  ec 8f a3 4d 30 4b 30 0e  |.&..o4.....M0K0.|
00000110  06 03 55 1d 0f 01 01 ff  04 04 03 02 05 a0 30 13  |..U...........0.|
00000120  06 03 55 1d 25 04 0c 30  0a 06 08 2b 06 01 05 05  |..U.%..0...+....|

00000160  9f 6c 61 3c c0 b0 41 d4  d9 2b 2b 24 23 77 5b 1c  |.la<..A..++$#w[.|
00000170  3b bd 75 5d ce 20 54 cf  a1 63 87 1d 1e 24 c4 f3  |;.u]. T..c...$..|
00000180  1d 1a 50 8b aa b6 14 43  ed 97 a7 75 62 f4 14 c8  |..P....C...ub...|
00000190  52 d7 02 03 01 00 01 a3  81 93 30 81 90 30 0e 06  |R.........0..0..|
000001a0  03 55 1d 0f 01 01 ff 04  04 03 02 05 a0 30 1d 06  |.U...........0..|

00000020  d8 b2 29 48 db 5d ea da  ea 79 bb 20 3f b9 66 fe  |..)H.]...y. ?.f.|
00000030  73 db fc 90 18 3f ac e5  1f 5d 86 24 80 75 ec a3  |s....?...].$.u..|
00000040  c6 aa e9 05 c1 47 21 bd  30 f6 41 43 c0 2f 00 00  |.....G!.0.AC./..|
00000050  11 ff 01 00 01 00 00 0b  00 04 03 00 01 02 00 17  |................|
00000060  00 00 16 03 03 02 66 0b  00 02 62 00 02 5f 00 02  |......f...b.._..|

    assertEquals("", Strings.commonPrefix("xyz", "abcde"));
    assertEquals("", Strings.commonPrefix("xyz", "abcxyz"));
    assertEquals("a", Strings.commonPrefix("abc", "aaaaa"));
    assertEquals("aa", Strings.commonPrefix("aa", "aaaaa"));
    assertEquals("abc", Strings.commonPrefix(new StringBuffer("abcdef"), "abcxyz"));

    // Identical valid surrogate pairs.
    assertEquals(

00000100  63 48 11 f1 75 30 ab a5  5b a2 cb 13 e9 e0 65 36  |cH..u0..[.....e6|
00000110  86 ce 8b 64 f6 dc e1 b7  0d 16 96 d1 ec 4b 93 d5  |...d.........K..|
00000120  6c 10 0d b7 d8 a2 45 b2  f0 e0 aa ab ab 11 8d d0  |l.....E.........|
00000130  2c fc 20 35 99 1b d6 3b  72 6d 88 03 80 5c 59 d4  |,. 5...;rm...\Y.|
00000140  04 18 ee 7a ed fe fb 52  c1 3c 93 95 e2 00 23 0d  |...z...R.<....#.|

)

// DirEquals check if two directories are referring to the same directory
func DirEquals(a, b string) (bool, error) {
	aa, err := filepath.Abs(a)
	if err != nil {
		return false, err
	}
	bb, err := filepath.Abs(b)
	if err != nil {
		return false, err
	}
	return aa == bb, nil

00000270  00 bc cf 9c 7d b7 40 20  01 5f aa d3 16 61 09 a2  |....}.@ ._...a..|
00000280  76 fd 13 c3 cc e1 0c 5c  ee b1 87 82 f1 6c 04 ed  |v......\.....l..|
00000290  73 bb b3 43 77 8d 0c 1c  f1 0f a1 d8 40 83 61 c9  |s..Cw.......@.a.|
000002a0  4c 72 2b 9d ae db 46 06  06 4d f4 c1 b3 3e c0 d1  |Lr+...F..M...>..|
000002b0  bd 42 d4 db fe 3d 13 60  84 5c 21 d3 3b e9 fa e7  |.B...=.`.\!.;...|

000002a0  16 a2 3d 33 04 e7 aa 3b  99 a5 ce c7 2c 28 71 bb  |..=3...;....,(q.|
000002b0  ed e6 b9 5a a5 ec d1 44  54 e0 ff 41 cf 1a cb ff  |...Z...DT..A....|
000002c0  67 43 6b af 87 19 40 74  17 03 03 00 a4 bc ef 32  |gCk...@t.......2|
000002d0  22 da e9 d5 93 ce 06 bd  3d 6c 2e f0 0c de ec b8  |".......=l......|
000002e0  12 d6 28 17 c6 64 aa 8d  4b 04 76 9e 41 3c 4a 94  |..(..d..K.v.A<J.|