format-patch: respect --stat in cover letter's diffstat

diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
index 640fddc9c3903ba660d99b59a382d413706f7790..86bba5ed7c23f78065521a9042244ea978a3a80f 100755 (executable)
--- a/t/t3404-rebase-interactive.sh
+++ b/t/t3404-rebase-interactive.sh
@@ -796,16 +796,15 @@ test_expect_success 'always cherry-pick with --no-ff' '
        git tag original-no-ff-branch &&
        set_fake_editor &&
        git rebase -i --no-ff A &&
-       touch empty &&
        for p in 0 1 2
        do
                test ! $(git rev-parse HEAD~$p) = $(git rev-parse original-no-ff-branch~$p) &&
                git diff HEAD~$p original-no-ff-branch~$p > out &&
-               test_cmp empty out
+               test_must_be_empty out
        done &&
        test $(git rev-parse HEAD~3) = $(git rev-parse original-no-ff-branch~3) &&
        git diff HEAD~3 original-no-ff-branch~3 > out &&
-       test_cmp empty out
+       test_must_be_empty out
 '
 
 test_expect_success 'set up commits with funny messages' '
@@ -1247,7 +1246,7 @@ rebase_setup_and_clean () {
                test_might_fail git branch -D $1 &&
                test_might_fail git rebase --abort
        " &&
-       git checkout -b $1 master
+       git checkout -b $1 ${2:-master}
 }
 
 test_expect_success 'drop' '
@@ -1424,4 +1423,24 @@ test_expect_success 'rebase -i --gpg-sign=<key-id> overrides commit.gpgSign' '
        test_i18ngrep "$SQ-S\"S I Gner\"$SQ" err
 '
 
+test_expect_success 'valid author header after --root swap' '
+       rebase_setup_and_clean author-header no-conflict-branch &&
+       set_fake_editor &&
+       git commit --amend --author="Au ${SQ}thor <author@example.com>" --no-edit &&
+       git cat-file commit HEAD | grep ^author >expected &&
+       FAKE_LINES="5 1" git rebase -i --root &&
+       git cat-file commit HEAD^ | grep ^author >actual &&
+       test_cmp expected actual
+'
+
+test_expect_success 'valid author header when author contains single quote' '
+       rebase_setup_and_clean author-header no-conflict-branch &&
+       set_fake_editor &&
+       git commit --amend --author="Au ${SQ}thor <author@example.com>" --no-edit &&
+       git cat-file commit HEAD | grep ^author >expected &&
+       FAKE_LINES="2" git rebase -i HEAD~2 &&
+       git cat-file commit HEAD | grep ^author >actual &&
+       test_cmp expected actual
+'
+
 test_done