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-rwxr-xr-xt/t4014-format-patch.sh6
1 files changed, 6 insertions, 0 deletions
diff --git a/t/t4014-format-patch.sh b/t/t4014-format-patch.sh
index 909c743..b6e2fdb 100755
--- a/t/t4014-format-patch.sh
+++ b/t/t4014-format-patch.sh
@@ -589,6 +589,12 @@ test_expect_success 'excessive subject' '
ls patches/0004-This-is-an-excessively-long-subject-line-for-a-messa.patch
'
+test_expect_success 'failure to write cover-letter aborts gracefully' '
+ test_when_finished "rmdir 0000-cover-letter.patch" &&
+ mkdir 0000-cover-letter.patch &&
+ test_must_fail git format-patch --no-renames --cover-letter -1
+'
+
test_expect_success 'cover-letter inherits diff options' '
git mv file foo &&
git commit -m foo &&