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)

00000030  c4 90 54 85 8b 21 f5 0d  e8 48 f2 5f 4e 6b f1 25  |..T..!...H._Nk.%|
00000040  e8 46 8a e5 3c 09 57 df  dd 37 a7 57 c5 a5 28 5a  |.F..<.W..7.W..(Z|
00000050  21 83 2a 98 4b a5 44 aa  5b cc 30 e9 62 49 38 16  |!.*.K.D.[.0.bI8.|
00000060  7e 51 5c e5 15 c0 58 7d  a4 aa c5 93 39 bb e2 b6  |~Q\...X}....9...|
00000070  4f c4 3e 1e 03 dc 46 b1  f3 0d d2 61 6c 1e c5 e1  |O.>...F....al...|

00000140  c0 b0 41 d4 d9 2b 2b 24  23 77 5b 1c 3b bd 75 5d  |..A..++$#w[.;.u]|
00000150  ce 20 54 cf a1 63 87 1d  1e 24 c4 f3 1d 1a 50 8b  |. T..c...$....P.|
00000160  aa b6 14 43 ed 97 a7 75  62 f4 14 c8 52 d7 02 03  |...C...ub...R...|
00000170  01 00 01 a3 81 93 30 81  90 30 0e 06 03 55 1d 0f  |......0..0...U..|
00000180  01 01 ff 04 04 03 02 05  a0 30 1d 06 03 55 1d 25  |.........0...U.%|

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.._..|

00000340  aa 13 e8 40 f3 fd 47 23  f6 bf 1c 30 fc 91 18 95  |...@..G#...0....|
00000350  ac a8 82 3d f5 ef 17 03  03 00 99 7e 30 4f f1 00  |...=.......~0O..|
00000360  1e dd eb c6 54 d2 f5 f7  21 aa 6b b0 83 0c fa 8b  |....T...!.k.....|
00000370  12 af ac 15 3e 54 b6 1c  85 9b 0c 80 02 d8 e3 5f  |....>T........._|
00000380  36 57 64 fe 7a b8 31 d0  aa 59 f1 e6 af e0 27 c5  |6Wd.z.1..Y....'.|

    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(

		filepath.Join(testDir, "2.yaml"),
		filepath.Join(testDir, "AB.yaml"),
		filepath.Join(testDir, "a", "a.yaml"),
		filepath.Join(testDir, "a", "b.json"),
		filepath.Join(testDir, "a.yaml"),
		filepath.Join(testDir, "aa.yaml"),
		filepath.Join(testDir, "b.yml"),
	}
	for _, fp := range filePaths {
		if err := os.MkdirAll(filepath.Dir(fp), 0700); err != nil {
			t.Fatal(err)
		}
		func() {
			f, err := os.Create(fp)

00000470  89 3f 68 77 cd 02 a7 aa  9c 9d b5                 |.?hw.......|
>>> Flow 3 (client to server)
00000000  14 03 03 00 01 01 17 03  03 00 35 1d f1 fe e2 c3  |..........5.....|
00000010  4e 95 57 0b 7e d6 32 45  6b 9c ed 89 c2 69 62 70  |N.W.~.2Ek....ibp|
00000020  79 0f a8 42 72 94 05 ad  f5 fe a5 83 4b 56 80 41  |y..Br.......KV.A|
00000030  2c 58 e0 e2 00 70 de c1  39 c8 fa c4 bb 89 57 aa  |,X...p..9.....W.|
>>> Flow 4 (server to client)