! grep "BAD signature from" actual
'
+test_expect_success GPG 'show good signature with custom format' '
+ cat >expect <<-\EOF &&
+ G
+ 13B6F51ECDDE430D
+ C O Mitter <committer@example.com>
+ EOF
+ git log -1 --format="%G?%n%GK%n%GS" sixth-signed >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success GPG 'show bad signature with custom format' '
+ cat >expect <<-\EOF &&
+ B
+ 13B6F51ECDDE430D
+ C O Mitter <committer@example.com>
+ EOF
+ git log -1 --format="%G?%n%GK%n%GS" $(cat forged1.commit) >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success GPG 'show unknown signature with custom format' '
+ cat >expect <<-\EOF &&
+ U
+ 61092E85B7227189
+ Eris Discordia <discord@example.net>
+ EOF
+ git log -1 --format="%G?%n%GK%n%GS" eighth-signed-alt >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success GPG 'show lack of signature with custom format' '
+ cat >expect <<-\EOF &&
+ N
+
+
+ EOF
+ git log -1 --format="%G?%n%GK%n%GS" seventh-unsigned >actual &&
+ test_cmp expect actual
+'
+
test_done