t/helper: add an empty test-tool program

diff --git a/t/t3405-rebase-malformed.sh b/t/t3405-rebase-malformed.sh
index ff8c360cd58bc11366ac2cf9e7c0b141e4ac3a39..cb7c6de84abf88bf90ac9716bb24ac91b8f64bf9 100755 (executable)
--- a/t/t3405-rebase-malformed.sh
+++ b/t/t3405-rebase-malformed.sh
@@ -3,6 +3,7 @@
 test_description='rebase should handle arbitrary git message'
 
 . ./test-lib.sh
+. "$TEST_DIRECTORY"/lib-rebase.sh
 
 cat >F <<\EOF
 This is an example of a commit log message
@@ -25,6 +26,7 @@ test_expect_success setup '
        test_tick &&
        git commit -m "Initial commit" &&
        git branch diff-in-message &&
+       git branch empty-message-merge &&
 
        git checkout -b multi-line-subject &&
        cat F >file2 &&
@@ -45,6 +47,11 @@ test_expect_success setup '
 
        git cat-file commit HEAD | sed -e "1,/^\$/d" >G0 &&
 
+       git checkout empty-message-merge &&
+       echo file3 >file3 &&
+       git add file3 &&
+       git commit --allow-empty-message -m "" &&
+
        git checkout master &&
 
        echo One >file1 &&
@@ -69,4 +76,20 @@ test_expect_success 'rebase commit with diff in message' '
        test_cmp G G0
 '
 
+test_expect_success 'rebase -m commit with empty message' '
+       test_must_fail git rebase -m master empty-message-merge &&
+       git rebase --abort &&
+       git rebase -m --allow-empty-message master empty-message-merge
+'
+
+test_expect_success 'rebase -i commit with empty message' '
+       git checkout diff-in-message &&
+       set_fake_editor &&
+       test_must_fail env FAKE_COMMIT_MESSAGE=" " FAKE_LINES="reword 1" \
+               git rebase -i HEAD^ &&
+       git rebase --abort &&
+       FAKE_COMMIT_MESSAGE=" " FAKE_LINES="reword 1" \
+               git rebase -i --allow-empty-message HEAD^
+'
+
 test_done