t/t7510-signed-commit.sh

   1 #!/bin/sh
   2
   3 test_description='signed commit tests'
   4 . ./test-lib.sh
   5 . "$TEST_DIRECTORY/lib-gpg.sh"
   6
   7 test_expect_success GPG 'create signed commits' '
   8         test_when_finished "test_unconfig commit.gpgsign" &&
   9
  10         echo 1 >file && git add file &&
  11         test_tick && git commit -S -m initial &&
  12         git tag initial &&
  13         git branch side &&
  14
  15         echo 2 >file && test_tick && git commit -a -S -m second &&
  16         git tag second &&
  17
  18         git checkout side &&
  19         echo 3 >elif && git add elif &&
  20         test_tick && git commit -m "third on side" &&
  21
  22         git checkout master &&
  23         test_tick && git merge -S side &&
  24         git tag merge &&
  25
  26         echo 4 >file && test_tick && git commit -a -m "fourth unsigned" &&
  27         git tag fourth-unsigned &&
  28
  29         test_tick && git commit --amend -S -m "fourth signed" &&
  30         git tag fourth-signed &&
  31
  32         git config commit.gpgsign true &&
  33         echo 5 >file && test_tick && git commit -a -m "fifth signed" &&
  34         git tag fifth-signed &&
  35
  36         git config commit.gpgsign false &&
  37         echo 6 >file && test_tick && git commit -a -m "sixth" &&
  38         git tag sixth-unsigned &&
  39
  40         git config commit.gpgsign true &&
  41         echo 7 >file && test_tick && git commit -a -m "seventh" --no-gpg-sign &&
  42         git tag seventh-unsigned &&
  43
  44         test_tick && git rebase -f HEAD^^ && git tag sixth-signed HEAD^ &&
  45         git tag seventh-signed
  46 '
  47
  48 test_expect_success GPG 'verify and show signatures' '
  49         (
  50                 for commit in initial second merge fourth-signed fifth-signed sixth-signed master
  51                 do
  52                         git verify-commit $commit &&
  53                         git show --pretty=short --show-signature $commit >actual &&
  54                         grep "Good signature from" actual &&
  55                         ! grep "BAD signature from" actual || exit 1
  56                         echo $commit OK
  57                 done
  58         ) &&
  59         (
  60                 for commit in merge^2 fourth-unsigned sixth-unsigned seventh-unsigned
  61                 do
  62                         test_must_fail git verify-commit $commit &&
  63                         git show --pretty=short --show-signature $commit >actual &&
  64                         ! grep "Good signature from" actual &&
  65                         ! grep "BAD signature from" actual || exit 1
  66                         echo $commit OK
  67                 done
  68         )
  69 '
  70
  71 test_expect_success GPG 'show signed commit with signature' '
  72         git show -s initial >commit &&
  73         git show -s --show-signature initial >show &&
  74         git verify-commit -v initial >verify.1 2>verify.2 &&
  75         git cat-file commit initial >cat &&
  76         grep -v "gpg: " show >show.commit &&
  77         grep "gpg: " show >show.gpg &&
  78         grep -v "^ " cat | grep -v "^gpgsig " >cat.commit &&
  79         test_cmp show.commit commit &&
  80         test_cmp show.gpg verify.2 &&
  81         test_cmp cat.commit verify.1
  82 '
  83
  84 test_expect_success GPG 'detect fudged signature' '
  85         git cat-file commit master >raw &&
  86
  87         sed -e "s/seventh/7th forged/" raw >forged1 &&
  88         git hash-object -w -t commit forged1 >forged1.commit &&
  89         ! git verify-commit $(cat forged1.commit) &&
  90         git show --pretty=short --show-signature $(cat forged1.commit) >actual1 &&
  91         grep "BAD signature from" actual1 &&
  92         ! grep "Good signature from" actual1
  93 '
  94
  95 test_expect_success GPG 'detect fudged signature with NUL' '
  96         git cat-file commit master >raw &&
  97         cat raw >forged2 &&
  98         echo Qwik | tr "Q" "\000" >>forged2 &&
  99         git hash-object -w -t commit forged2 >forged2.commit &&
 100         ! git verify-commit $(cat forged2.commit) &&
 101         git show --pretty=short --show-signature $(cat forged2.commit) >actual2 &&
 102         grep "BAD signature from" actual2 &&
 103         ! grep "Good signature from" actual2
 104 '
 105
 106 test_expect_success GPG 'amending already signed commit' '
 107         git checkout fourth-signed^0 &&
 108         git commit --amend -S --no-edit &&
 109         git verify-commit HEAD &&
 110         git show -s --show-signature HEAD >actual &&
 111         grep "Good signature from" actual &&
 112         ! grep "BAD signature from" actual
 113 '
 114
 115 test_done