test_cmp expect actual
'
+test_expect_success '%(trailers:key=foo,valueonly) shows only value' '
+ git log --no-walk --pretty="format:%(trailers:key=Acked-by,valueonly)" >actual &&
+ echo "A U Thor <author@example.com>" >expect &&
+ test_cmp expect actual
+'
+
+test_expect_success 'pretty format %(trailers:separator) changes separator' '
+ git log --no-walk --pretty=format:"X%(trailers:separator=%x00,unfold)X" >actual &&
+ printf "XSigned-off-by: A U Thor <author@example.com>\0Acked-by: A U Thor <author@example.com>\0[ v2 updated patch description ]\0Signed-off-by: A U Thor <author@example.com>X" >expect &&
+ test_cmp expect actual
+'
+
+test_expect_success 'pretty format %(trailers) combining separator/key/valueonly' '
+ git commit --allow-empty -F - <<-\EOF &&
+ Important fix
+
+ The fix is explained here
+
+ Closes: #1234
+ EOF
+
+ git commit --allow-empty -F - <<-\EOF &&
+ Another fix
+
+ The fix is explained here
+
+ Closes: #567
+ Closes: #890
+ EOF
+
+ git commit --allow-empty -F - <<-\EOF &&
+ Does not close any tickets
+ EOF
+
+ git log --pretty="%s% (trailers:separator=%x2c%x20,key=Closes,valueonly)" HEAD~3.. >actual &&
+ test_write_lines \
+ "Does not close any tickets" \
+ "Another fix #567, #890" \
+ "Important fix #1234" >expect &&
+ test_cmp expect actual
+'
+
test_expect_success 'trailer parsing not fooled by --- line' '
git commit --allow-empty -F - <<-\EOF &&
this is the subject
test_cmp expect actual
'
+test_expect_success 'set up %S tests' '
+ git checkout --orphan source-a &&
+ test_commit one &&
+ test_commit two &&
+ git checkout -b source-b HEAD^ &&
+ test_commit three
+'
+
+test_expect_success 'log --format=%S paints branch names' '
+ cat >expect <<-\EOF &&
+ source-b
+ source-a
+ source-b
+ EOF
+ git log --format=%S source-a source-b >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'log --format=%S paints tag names' '
+ git tag -m tagged source-tag &&
+ cat >expect <<-\EOF &&
+ source-tag
+ source-a
+ source-tag
+ EOF
+ git log --format=%S source-tag source-a >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'log --format=%S paints symmetric ranges' '
+ cat >expect <<-\EOF &&
+ source-b
+ source-a
+ EOF
+ git log --format=%S source-a...source-b >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success '%S in git log --format works with other placeholders (part 1)' '
+ git log --format="source-b %h" source-b >expect &&
+ git log --format="%S %h" source-b >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success '%S in git log --format works with other placeholders (part 2)' '
+ git log --format="%h source-b" source-b >expect &&
+ git log --format="%h %S" source-b >actual &&
+ test_cmp expect actual
+'
+
test_done