t/t4254-am-corrupt.sh

   1 #!/bin/sh
   2
   3 test_description='git am with corrupt input'
   4
   5 TEST_PASSES_SANITIZE_LEAK=true
   6 . ./test-lib.sh
   7
   8 if ! test_have_prereq ICONV
   9 then
  10         skip_all='skipping am encoding corruption tests; iconv not available'
  11         test_done
  12 fi
  13
  14 make_mbox_with_nul () {
  15         space=' '
  16         q_nul_in_subject=
  17         q_nul_in_body=
  18         while test $# -ne 0
  19         do
  20                 case "$1" in
  21                 subject) q_nul_in_subject='=00' ;;
  22                 body)    q_nul_in_body='=00' ;;
  23                 esac &&
  24                 shift
  25         done &&
  26         cat <<-EOF
  27         From ec7364544f690c560304f5a5de9428ea3b978b26 Mon Sep 17 00:00:00 2001
  28         From: A U Thor <author@example.com>
  29         Date: Sun, 19 Apr 2020 13:42:07 +0700
  30         Subject: [PATCH] =?ISO-8859-1?q?=C4=CB${q_nul_in_subject}=D1=CF=D6?=
  31         MIME-Version: 1.0
  32         Content-Type: text/plain; charset=ISO-8859-1
  33         Content-Transfer-Encoding: quoted-printable
  34
  35         abc${q_nul_in_body}def
  36         ---
  37         diff --git a/afile b/afile
  38         new file mode 100644
  39         index 0000000000..e69de29bb2
  40         --$space
  41         2.26.1
  42         EOF
  43 }
  44
  45 test_expect_success setup '
  46         # Note the missing "+++" line:
  47         cat >bad-patch.diff <<-\EOF &&
  48         From: A U Thor <au.thor@example.com>
  49         diff --git a/f b/f
  50         index 7898192..6178079 100644
  51         --- a/f
  52         @@ -1 +1 @@
  53         -a
  54         +b
  55         EOF
  56
  57         echo a >f &&
  58         git add f &&
  59         test_tick &&
  60         git commit -m initial
  61 '
  62
  63 # This used to fail before, too, but with a different diagnostic.
  64 #   fatal: unable to write file '(null)' mode 100644: Bad address
  65 # Also, it had the unwanted side-effect of deleting f.
  66 test_expect_success 'try to apply corrupted patch' '
  67         test_when_finished "git am --abort" &&
  68         test_must_fail git -c advice.amWorkDir=false -c advice.mergeConflict=false am bad-patch.diff 2>actual &&
  69         echo "error: git diff header lacks filename information (line 4)" >expected &&
  70         test_path_is_file f &&
  71         test_cmp expected actual
  72 '
  73
  74 test_expect_success "NUL in commit message's body" '
  75         test_when_finished "git am --abort" &&
  76         make_mbox_with_nul body >body.patch &&
  77         test_must_fail git am body.patch 2>err &&
  78         grep "a NUL byte in commit log message not allowed" err
  79 '
  80
  81 test_expect_success "NUL in commit message's header" "
  82         test_when_finished 'git am --abort' &&
  83         make_mbox_with_nul subject >subject.patch &&
  84         test_must_fail git mailinfo msg patch <subject.patch 2>err &&
  85         grep \"a NUL byte in 'Subject' is not allowed\" err &&
  86         test_must_fail git am subject.patch 2>err &&
  87         grep \"a NUL byte in 'Subject' is not allowed\" err
  88 "
  89
  90 test_done