diplodocus.org Git - nmh/blob - test/inc/test-eom-align

   1 #!/bin/sh
   2 # Test all combinations of alignment of the end-of-message delimiter
   3 # with the end of a stdio buffer
   4
   5 set -e
   6
   7 if test -z "${MH_OBJ_DIR}"; then
   8     srcdir=`dirname "$0"`/../..
   9     MH_OBJ_DIR=`cd "$srcdir" && pwd`; export MH_OBJ_DIR
  10 fi
  11
  12 . "$MH_OBJ_DIR/test/common.sh"
  13
  14 setup_test
  15
  16 THISDIR="$srcdir/test/inc"
  17
  18 if [ ! -z "$VALGRIND_ME" ]; then
  19     require_prog valgrind
  20     # Lack of quotes here is important
  21     VALGRIND="valgrind --quiet --error-exitcode=1"
  22     echo "Running tests under valgrind: takes ages!"
  23 else
  24     VALGRIND=
  25 fi
  26
  27 # First check that all our various pieces of text are
  28 # intact. (Since we're dealing in exact byte alignment
  29 # minor corruptions such as line ending changes could
  30 # render the tests useless.)
  31 (cd "$THISDIR" && output_md5 *.txt > "$MH_TEST_DIR/inctest.md5sums")
  32 check "$THISDIR/md5sums" "$MH_TEST_DIR/inctest.md5sums" 'keep first'
  33
  34 FILLER="$THISDIR/filler.txt"
  35 FROMLINE="$THISDIR/fromline.txt"
  36 HDR="$THISDIR/msgheader.txt"
  37
  38 if grep -q From "$FILLER"; then
  39    echo "Somebody's messed with $FILLER -- it must not contain"
  40    echo "anything that might look like a message delimiter!"
  41    exit 1
  42 fi
  43
  44 # a sort of worst-case guess for the buffer size;
  45 # obviously a buffer boundary for this will be a boundary
  46 # for any smaller power of two size.
  47 # If you need to increase this you'll need to make filler.txt
  48 # bigger as well.
  49 STDIO_BUFSZ=16384
  50
  51 FROMLINESZ="$(wc -c "$FROMLINE" | cut -d ' ' -f 1)"
  52 HDRSZ="$(wc -c "$HDR" | cut -d ' ' -f 1)"
  53
  54 # makembox_A mboxname sz
  55 # Assemble a mailbox into file mboxname, with two messages, such
  56 # that the first is exactly sz bytes long (including its header
  57 # and its initial 'From' line and the newline which terminates it
  58 # but not the newline which mbox format demands after each message)
  59 # We also leave the body of message one in mboxname.body
  60 # (the body of message two is always $FILLER in its entirety)
  61 makembox_A () {
  62   MBOX="$1"
  63   SZ=$2
  64
  65   WANTSZ="$(($SZ - $HDRSZ - $FROMLINESZ - 1))"
  66   dd if="$FILLER" of="$MBOX.body" bs="$WANTSZ" count=1 2>/dev/null
  67   echo >> "$MBOX.body"
  68   cat "$FROMLINE" "$HDR" "$MBOX.body" > "$MBOX"
  69   echo >> "$MBOX"
  70   cat "$FROMLINE" "$HDR" "$FILLER" >> "$MBOX"
  71   echo >> "$MBOX"
  72 }
  73
  74 # make_mbox_B mboxname sz
  75 # Test B makes a mailbox with one message of sz bytes long,
  76 # which ends in a partial mbox delimiter (ie part of the string
  77 # \n\nFrom '). To both do this and be a valid mbox this means
  78 # it has to end with two newlines (one of which is in the message
  79 # body and one of which is the mbox format mandated one)
  80 makembox_B () {
  81   MBOX="$1"
  82   SZ=$2
  83
  84   WANTSZ="$(($SZ - $HDRSZ - $FROMLINESZ - 1))"
  85   dd if="$FILLER" of="$MBOX.body" bs="$WANTSZ" count=1 2>/dev/null
  86   echo >> "$MBOX.body"
  87   cat "$FROMLINE" "$HDR" "$MBOX.body" > "$MBOX"
  88   echo >> "$MBOX"
  89 }
  90
  91 # do_one_test_A sz
  92 # Do a single test with message one's body of size sz.
  93 do_one_test_A () {
  94   SZ=$1
  95   makembox_A "$MH_TEST_DIR/eom-align.mbox" $STDIO_BUFSZ
  96   $VALGRIND inc -silent -file "$MH_TEST_DIR/eom-align.mbox"
  97   # We know the messages should be 11 and 12 in inbox
  98   # Now get the bodies back out.
  99   body1="$MH_TEST_DIR/eom-align.inbox.body1"
 100   body2="$MH_TEST_DIR/eom-align.inbox.body2"
 101   sed -e '1,/^$/d' "$MH_TEST_DIR/Mail/inbox/11" > "$body1"
 102   sed -e '1,/^$/d' "$MH_TEST_DIR/Mail/inbox/12" > "$body2"
 103   check "$MH_TEST_DIR/eom-align.mbox.body" "$body1" 'keep first'
 104   check "$FILLER" "$body2" 'keep first'
 105   rmm 11 12
 106 }
 107
 108 # do_one_test_B sz
 109 # Do a test type B
 110 do_one_test_B () {
 111   SZ=$1
 112   makembox_B "$MH_TEST_DIR/eom-align.mbox" $STDIO_BUFSZ
 113   $VALGRIND inc -silent -file "$MH_TEST_DIR/eom-align.mbox"
 114   # We know the message should be 11 in the inbox
 115   body1="$MH_TEST_DIR/eom-align.inbox.body1"
 116   sed -e '1,/^$/d' "$MH_TEST_DIR/Mail/inbox/11" > "$body1"
 117   check "$MH_TEST_DIR/eom-align.mbox.body" "$body1" 'keep first'
 118   rmm 11
 119 }
 120
 121 # Cover a decent range around the stdio buffer size to make sure we catch
 122 # any corner cases whether they relate to total message size equal to
 123 # buffer size or to body size equal to buffer size.
 124 START=$(($STDIO_BUFSZ - 16))
 125 FINISH=$(($STDIO_BUFSZ + $HDRSZ + $FROMLINESZ + 32))
 126 echo "Testing inc of files with various alignments of eom marker with buffer size..."
 127 i="$START"
 128 while test $i -le $FINISH; do
 129   progress_update $i $START $FINISH
 130   do_one_test_A $i
 131   do_one_test_B $i
 132   i=$(expr $i + 1)
 133 done
 134 progress_done
 135
 136 test ${failed:-0} -eq 0  &&  \
 137 rm "$MH_TEST_DIR/eom-align.mbox" "$MH_TEST_DIR/eom-align.mbox.body"
 138
 139 exit $failed