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-rwxr-xr-xt/t4027-diff-submodule.sh7
1 files changed, 7 insertions, 0 deletions
diff --git a/t/t4027-diff-submodule.sh b/t/t4027-diff-submodule.sh
index 1fd3fb74d..ba6679c6e 100755
--- a/t/t4027-diff-submodule.sh
+++ b/t/t4027-diff-submodule.sh
@@ -50,4 +50,11 @@ test_expect_success 'git diff-files --raw' '
test_cmp expect actual.files
'
+test_expect_success 'git diff (empty submodule dir)' '
+ : >empty &&
+ rm -rf sub/* sub/.git &&
+ git diff > actual.empty &&
+ test_cmp empty actual.empty
+'
+
test_done