t/t4254-am-corrupt.sh

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