Andrew's git - gitweb.git/blob

   1#!/bin/sh
   2
   3test_description='test parsing of svndiff0 files
   4
   5Using the "test-svn-fe -d" helper, check that svn-fe correctly
   6interprets deltas using various facilities (some from the spec,
   7some only learned from practice).
   8'
   9. ./test-lib.sh
  10
  11>empty
  12printf foo >preimage
  13
  14test_expect_success 'reject empty delta' '
  15        test_must_fail test-svn-fe -d preimage empty 0
  16'
  17
  18test_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
  24test_expect_success 'reject svndiff2' '
  25        printf "SVN\002" >bad.filetype &&
  26        test_must_fail test-svn-fe -d preimage bad.filetype 4
  27'
  28
  29test_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
  35test_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
  42test_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
  49test_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
  56test_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
  66test_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
  71test_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
  83test_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
  89test_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
  95test_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
 105test_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
 115test_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
 124test_expect_success 'inline data' '
 125        printf "SVNQ%b%s%b%s" "QQQQ\003" "bar" "QQQQ\001" "x" |
 126                q_to_nul >inline.clear &&
 127        test-svn-fe -d preimage inline.clear 18 >actual &&
 128        test_cmp empty actual
 129'
 130
 131test_expect_success 'reject truncated inline data' '
 132        printf "SVNQ%b%s" "QQQQ\003" "b" | q_to_nul >inline.trunc &&
 133        test_must_fail test-svn-fe -d preimage inline.trunc 10
 134'
 135
 136test_expect_success 'reject truncated inline data (after instruction section)' '
 137        printf "SVNQ%b%b%s" "QQ\001\001\003" "\0201" "b" | q_to_nul >insn.trunc &&
 138        test_must_fail test-svn-fe -d preimage insn.trunc 11
 139'
 140
 141test_expect_success 'copyfrom_data' '
 142        echo hi >expect &&
 143        printf "SVNQ%b%b%b" "QQ\003\001\003" "\0203" "hi\n" | q_to_nul >copydat &&
 144        test-svn-fe -d preimage copydat 13 >actual &&
 145        test_cmp expect actual
 146'
 147
 148test_expect_success 'multiple copyfrom_data' '
 149        echo hi >expect &&
 150        printf "SVNQ%b%b%b%b%b" "QQ\003\002\003" "\0201\0202" "hi\n" \
 151                "QQQ\002Q" "\0200Q" | q_to_nul >copy.multi &&
 152        len=$(wc -c <copy.multi) &&
 153        test-svn-fe -d preimage copy.multi $len >actual &&
 154        test_cmp expect actual
 155'
 156
 157test_expect_success 'incomplete multiple insn' '
 158        printf "SVNQ%b%b%b" "QQ\003\002\003" "\0203\0200" "hi\n" |
 159                q_to_nul >copy.partial &&
 160        len=$(wc -c <copy.partial) &&
 161        test_must_fail test-svn-fe -d preimage copy.partial $len
 162'
 163
 164test_expect_success 'catch attempt to copy missing data' '
 165        printf "SVNQ%b%b%s%b%s" "QQ\002\002\001" "\0201\0201" "X" \
 166                        "QQQQ\002" "YZ" |
 167                q_to_nul >copy.incomplete &&
 168        len=$(wc -c <copy.incomplete) &&
 169        test_must_fail test-svn-fe -d preimage copy.incomplete $len
 170'
 171
 172test_done