t/t9011-svn-da.sh

   1 #!/bin/sh
   2
   3 test_description='test parsing of svndiff0 files
   4
   5 Using the "test-svn-fe -d" helper, check that svn-fe correctly
   6 interprets deltas using various facilities (some from the spec,
   7 some only learned from practice).
   8 '
   9 . ./test-lib.sh
  10
  11 >empty
  12 printf foo >preimage
  13
  14 test_expect_success 'reject empty delta' '
  15         test_must_fail test-svn-fe -d preimage empty 0
  16 '
  17
  18 test_expect_success 'delta can empty file' '
  19         printf "SVNQ" | q_to_nul >clear.delta &&
  20         test-svn-fe -d preimage clear.delta 4 >actual &&
  21         test_cmp empty actual
  22 '
  23
  24 test_expect_success 'reject svndiff2' '
  25         printf "SVN\002" >bad.filetype &&
  26         test_must_fail test-svn-fe -d preimage bad.filetype 4
  27 '
  28
  29 test_expect_success 'one-window empty delta' '
  30         printf "SVNQ%s" "QQQQQ" | q_to_nul >clear.onewindow &&
  31         test-svn-fe -d preimage clear.onewindow 9 >actual &&
  32         test_cmp empty actual
  33 '
  34
  35 test_expect_success 'reject incomplete window header' '
  36         printf "SVNQ%s" "QQQQQ" | q_to_nul >clear.onewindow &&
  37         printf "SVNQ%s" "QQ" | q_to_nul >clear.partialwindow &&
  38         test_must_fail test-svn-fe -d preimage clear.onewindow 6 &&
  39         test_must_fail test-svn-fe -d preimage clear.partialwindow 6
  40 '
  41
  42 test_expect_success 'reject declared delta longer than actual delta' '
  43         printf "SVNQ%s" "QQQQQ" | q_to_nul >clear.onewindow &&
  44         printf "SVNQ%s" "QQ" | q_to_nul >clear.partialwindow &&
  45         test_must_fail test-svn-fe -d preimage clear.onewindow 14 &&
  46         test_must_fail test-svn-fe -d preimage clear.partialwindow 9
  47 '
  48
  49 test_expect_success 'two-window empty delta' '
  50         printf "SVNQ%s%s" "QQQQQ" "QQQQQ" | q_to_nul >clear.twowindow &&
  51         test-svn-fe -d preimage clear.twowindow 14 >actual &&
  52         test_must_fail test-svn-fe -d preimage clear.twowindow 13 &&
  53         test_cmp empty actual
  54 '
  55
  56 test_expect_success 'noisy zeroes' '
  57         printf "SVNQ%s" \
  58                 "RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRQQQQQ" |
  59                 tr R "\200" |
  60                 q_to_nul >clear.noisy &&
  61         len=$(wc -c <clear.noisy) &&
  62         test-svn-fe -d preimage clear.noisy $len &&
  63         test_cmp empty actual
  64 '
  65
  66 test_expect_success 'reject variable-length int in magic' '
  67         printf "SVNRQ" | tr R "\200" | q_to_nul >clear.badmagic &&
  68         test_must_fail test-svn-fe -d preimage clear.badmagic 5
  69 '
  70
  71 test_expect_success 'reject truncated integer' '
  72         printf "SVNQ%s%s" "QQQQQ" "QQQQRRQ" |
  73                 tr R "\200" |
  74                 q_to_nul >clear.fullint &&
  75         printf "SVNQ%s%s" "QQQQQ" "QQQQRR" |
  76                 tr RT "\201" |
  77                 q_to_nul >clear.partialint &&
  78         test_must_fail test-svn-fe -d preimage clear.fullint 15 &&
  79         test-svn-fe -d preimage clear.fullint 16 &&
  80         test_must_fail test-svn-fe -d preimage clear.partialint 15
  81 '
  82
  83 test_expect_success 'nonempty (but unused) preimage view' '
  84         printf "SVNQ%b" "Q\003QQQ" | q_to_nul >clear.readpreimage &&
  85         test-svn-fe -d preimage clear.readpreimage 9 >actual &&
  86         test_cmp empty actual
  87 '
  88
  89 test_expect_success 'preimage view: right endpoint cannot backtrack' '
  90         printf "SVNQ%b%b" "Q\003QQQ" "Q\002QQQ" |
  91                 q_to_nul >clear.backtrack &&
  92         test_must_fail test-svn-fe -d preimage clear.backtrack 14
  93 '
  94
  95 test_expect_success 'preimage view: left endpoint can advance' '
  96         printf "SVNQ%b%b" "Q\003QQQ" "\001\002QQQ" |
  97                 q_to_nul >clear.preshrink &&
  98         printf "SVNQ%b%b" "Q\003QQQ" "\001\001QQQ" |
  99                 q_to_nul >clear.shrinkbacktrack &&
 100         test-svn-fe -d preimage clear.preshrink 14 >actual &&
 101         test_must_fail test-svn-fe -d preimage clear.shrinkbacktrack 14 &&
 102         test_cmp empty actual
 103 '
 104
 105 test_expect_success 'preimage view: offsets compared by value' '
 106         printf "SVNQ%b%b" "\001\001QQQ" "\0200Q\003QQQ" |
 107                 q_to_nul >clear.noisybacktrack &&
 108         printf "SVNQ%b%b" "\001\001QQQ" "\0200\001\002QQQ" |
 109                 q_to_nul >clear.noisyadvance &&
 110         test_must_fail test-svn-fe -d preimage clear.noisybacktrack 15 &&
 111         test-svn-fe -d preimage clear.noisyadvance 15 &&
 112         test_cmp empty actual
 113 '
 114
 115 test_expect_success 'preimage view: reject truncated preimage' '
 116         printf "SVNQ%b" "\010QQQQ" | q_to_nul >clear.lateemptyread &&
 117         printf "SVNQ%b" "\010\001QQQ" | q_to_nul >clear.latenonemptyread &&
 118         printf "SVNQ%b" "\001\010QQQ" | q_to_nul >clear.longread &&
 119         test_must_fail test-svn-fe -d preimage clear.lateemptyread 9 &&
 120         test_must_fail test-svn-fe -d preimage clear.latenonemptyread 9 &&
 121         test_must_fail test-svn-fe -d preimage clear.longread 9
 122 '
 123
 124 test_done