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         echo 8 >file && test_tick && git commit -a -m eighth -SB7227189 &&
  48         git tag eighth-signed-alt
  49 '
  50
  51 test_expect_success GPG 'show signatures' '
  52         (
  53                 for commit in initial second merge fourth-signed fifth-signed sixth-signed seventh-signed
  54                 do
  55                         git show --pretty=short --show-signature $commit >actual &&
  56                         grep "Good signature from" actual &&
  57                         ! grep "BAD signature from" actual &&
  58                         echo $commit OK || exit 1
  59                 done
  60         ) &&
  61         (
  62                 for commit in merge^2 fourth-unsigned sixth-unsigned seventh-unsigned
  63                 do
  64                         git show --pretty=short --show-signature $commit >actual &&
  65                         ! grep "Good signature from" actual &&
  66                         ! grep "BAD signature from" actual &&
  67                         echo $commit OK || exit 1
  68                 done
  69         ) &&
  70         (
  71                 for commit in eighth-signed-alt
  72                 do
  73                         git show --pretty=short --show-signature $commit >actual &&
  74                         grep "Good signature from" actual &&
  75                         ! grep "BAD signature from" actual &&
  76                         grep "not certified" actual &&
  77                         echo $commit OK || exit 1
  78                 done
  79         )
  80 '
  81
  82 test_expect_success GPG 'detect fudged signature' '
  83         git cat-file commit seventh-signed >raw &&
  84
  85         sed -e "s/seventh/7th forged/" raw >forged1 &&
  86         git hash-object -w -t commit forged1 >forged1.commit &&
  87         git show --pretty=short --show-signature $(cat forged1.commit) >actual1 &&
  88         grep "BAD signature from" actual1 &&
  89         ! grep "Good signature from" actual1
  90 '
  91
  92 test_expect_success GPG 'detect fudged signature with NUL' '
  93         git cat-file commit seventh-signed >raw &&
  94         cat raw >forged2 &&
  95         echo Qwik | tr "Q" "\000" >>forged2 &&
  96         git hash-object -w -t commit forged2 >forged2.commit &&
  97         git show --pretty=short --show-signature $(cat forged2.commit) >actual2 &&
  98         grep "BAD signature from" actual2 &&
  99         ! grep "Good signature from" actual2
 100 '
 101
 102 test_expect_success GPG 'amending already signed commit' '
 103         git checkout fourth-signed^0 &&
 104         git commit --amend -S --no-edit &&
 105         git show -s --show-signature HEAD >actual &&
 106         grep "Good signature from" actual &&
 107         ! grep "BAD signature from" actual
 108 '
 109
 110 test_expect_success GPG 'show good signature with custom format' '
 111         cat >expect <<-\EOF &&
 112         G
 113         13B6F51ECDDE430D
 114         C O Mitter <committer@example.com>
 115         EOF
 116         git log -1 --format="%G?%n%GK%n%GS" sixth-signed >actual &&
 117         test_cmp expect actual
 118 '
 119
 120 test_expect_success GPG 'show bad signature with custom format' '
 121         cat >expect <<-\EOF &&
 122         B
 123         13B6F51ECDDE430D
 124         C O Mitter <committer@example.com>
 125         EOF
 126         git log -1 --format="%G?%n%GK%n%GS" $(cat forged1.commit) >actual &&
 127         test_cmp expect actual
 128 '
 129
 130 test_expect_success GPG 'show unknown signature with custom format' '
 131         cat >expect <<-\EOF &&
 132         U
 133         61092E85B7227189
 134         Eris Discordia <discord@example.net>
 135         EOF
 136         git log -1 --format="%G?%n%GK%n%GS" eighth-signed-alt >actual &&
 137         test_cmp expect actual
 138 '
 139
 140 test_expect_success GPG 'show lack of signature with custom format' '
 141         cat >expect <<-\EOF &&
 142         N
 143
 144
 145         EOF
 146         git log -1 --format="%G?%n%GK%n%GS" seventh-unsigned >actual &&
 147         test_cmp expect actual
 148 '
 149
 150 test_done