vectors := []struct {
		input int64
		width int
		ok    bool
	}{
		{-1, 1, false},
		{-1, 2, false},
		{-1, 3, false},
		{0, 1, true},
		{0 + 1, 1, false},
		{0, 2, true},
		{07, 2, true},
		{07 + 1, 2, false},
		{0, 4, true},
		{0777, 4, true},
		{0777 + 1, 4, false},
		{0, 8, true},
		{07777777, 8, true},
		{07777777 + 1, 8, false},
		{0, 12, true},
		{077777777777, 12, true},

		//
		// According to the PAX specification, this should have been the result:
		//	---------- 0/0               0 2017-07-13 19:40 global1
		//	---------- 0/0               0 2017-07-13 19:40 file2
		//	---------- 0/0               0 2017-07-13 19:40 file3
		//	---------- 0/0               0 2014-05-13 09:53 file4
		file: "testdata/pax-global-records.tar",
		tests: []testFnc{
			testHeader{Header{

0000060 64 9d 73 83 71 11 46 61 14 b9 1d 14 09 4a c3 60
0000070 2e 4c 6e a5 60 45 02 62 81 95 b6 94 9e 9e 77 e7
0000080 d0 43 b6 f8 71 df 96 3c e7 a4 69 ce bf cf e9 79
0000090 ce ef 79 3f bf f1 31 db b6 bb 31 76 92 e7 f3 07
00000a0 8b fc 9c ca cc 08 cc cb cc 5e d2 1c 88 d9 7e bb
00000b0 4f bb 3a 3f 75 f1 5d 7f 8f c2 68 67 77 8f 25 ff
00000c0 84 e2 93 2d ef a4 95 3d 71 4e 2c b9 b0 87 c3 be
00000d0 3d f8 a7 60 24 61 c5 ef ae 9e c8 6c 6d 4e 69 c8