[PATCH v2 1/3] t7300: add tests to document behavior of clean and nested git

@@ -455,6 +455,78 @@ test_expect_success 'nested git work tree' '
 	! test -d bar
 '
 
+test_expect_failure 'nested git (only init) should be kept' '
+	rm -fr foo bar &&
+	git init foo &&
+	mkdir bar &&
+	>bar/goodbye.people &&
+	git clean -f -d &&
+	test_path_is_file foo/.git/HEAD &&
+	test_path_is_missing bar
+'
+
+test_expect_failure 'nested git (bare) should be kept' '
+	rm -fr foo bar &&
+	git init --bare foo &&
+	mkdir bar &&
+	>bar/goodbye.people &&
+	git clean -f -d &&
+	test_path_is_file foo/HEAD &&
+	test_path_is_missing bar
+'
+
+test_expect_success 'giving path in nested git work tree will remove it' '
+	rm -fr foo &&
+	mkdir foo &&
+	(
+		cd foo &&
+		git init &&
+		mkdir -p bar/baz &&
+		(
+			cd bar/baz &&
+			>hello.world &&
+			git add . &&
+			git commit -a -m nested
+		)
+	) &&
+	git clean -f -d foo/bar/baz &&
+	test_path_is_file foo/.git/HEAD &&
+	test_path_is_dir foo/bar/ &&
+	test_path_is_missing foo/bar/baz
+'
+
+test_expect_success 'giving path to nested .git will not remove it' '
+	rm -fr foo &&
+	mkdir foo bar &&
+	(
+		cd foo &&
+		git init &&
+		>hello.world &&
+		git add . &&
+		git commit -a -m nested
+	) &&
+	git clean -f -d foo/.git &&
+	test_path_is_file foo/.git/HEAD &&
+	test_path_is_dir foo/.git/refs &&
+	test_path_is_dir foo/.git/objects &&
+	test_path_is_dir bar/
+'
+
+test_expect_success 'giving path to nested .git/ will remove contents' '
+	rm -fr foo bar &&
+	mkdir foo bar &&
+	(
+		cd foo &&
+		git init &&
+		>hello.world &&
+		git add . &&
+		git commit -a -m nested
+	) &&
+	git clean -f -d foo/.git/ &&
+	test_path_is_dir foo/.git &&
+	test_dir_is_empty foo/.git
+'
+
 test_expect_success 'force removal of nested git work tree' '
 	rm -fr foo bar baz &&
 	mkdir -p foo bar baz/boo &&