[PATCH v2 3/3] t7400: add test to check 'submodule add' for tracked paths

[Shourya Shukla <shouryashukla.oo@gmail.com>]

Add test to check if 'git submodule add' works on paths which are
tracked by Git.

Helped-by: Christian Couder <christian.couder@gmail.com>
Helped-by: Kaartic Sivaraam <kaartic.sivaraam@gmail.com>
Signed-off-by: Shourya Shukla <shouryashukla.oo@gmail.com>
---
 t/t7400-submodule-basic.sh | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/t/t7400-submodule-basic.sh b/t/t7400-submodule-basic.sh
index 4ab8298385..d9317192e0 100755
--- a/t/t7400-submodule-basic.sh
+++ b/t/t7400-submodule-basic.sh
@@ -193,6 +193,17 @@ test_expect_success 'submodule add to .gitignored path with --force' '
 	)
 '
 
+test_expect_success 'submodule add to path with tracked contents fails' '
+	(
+		cd addtest-ignore &&
+		mkdir track &&
+		git add -f track &&
+		git commit -m "add tracked path" &&
+		! git submodule add "$submodurl" submod >output 2>&1 &&
+		test_file_not_empty output
+	)
+'
+
 test_expect_success 'submodule add to reconfigure existing submodule with --force' '
 	(
 		cd addtest-ignore &&
-- 
2.28.0