+test_expect_success GPG 'log.showsignature=true behaves like --show-signature' '
+ test_config log.showsignature true &&
+ git log -1 signed >actual &&
+ grep "gpg: Signature made" actual &&
+ grep "gpg: Good signature" actual
+'
+
+test_expect_success GPG '--no-show-signature overrides log.showsignature=true' '
+ test_config log.showsignature true &&
+ git log -1 --no-show-signature signed >actual &&
+ ! grep "^gpg:" actual
+'
+
+test_expect_success GPG '--show-signature overrides log.showsignature=false' '
+ test_config log.showsignature false &&
+ git log -1 --show-signature signed >actual &&
+ grep "gpg: Signature made" actual &&
+ grep "gpg: Good signature" actual
+'
+