interpret-trailers: add an option to show only the trailers

diff --git a/t/t4202-log.sh b/t/t4202-log.sh
index 6da1bbe9122e71a79658495c9ace61441071080c..e4441957e2b406c16121578f6d1344488509cafe 100755 (executable)
--- a/t/t4202-log.sh
+++ b/t/t4202-log.sh
@@ -399,7 +399,7 @@ cat > expect <<\EOF
 | |
 | |     Merge branch 'side'
 | |
-| * commit side
+| * commit tags/side-2
 | | Author: A U Thor <author@example.com>
 | |
 | |     side-2
@@ -577,6 +577,18 @@ test_expect_success 'log.decorate configuration' '
 
 '
 
+test_expect_success 'log.decorate config parsing' '
+       git log --oneline --decorate=full >expect.full &&
+       git log --oneline --decorate=short >expect.short &&
+
+       test_config log.decorate full &&
+       test_config log.mailmap true &&
+       git log --oneline >actual &&
+       test_cmp expect.full actual &&
+       git log --oneline --decorate=short >actual &&
+       test_cmp expect.short actual
+'
+
 test_expect_success TTY 'log output on a TTY' '
        git log --oneline --decorate >expect.short &&