test-match-trees: convert to use struct object_id

diff --git a/t/t7400-submodule-basic.sh b/t/t7400-submodule-basic.sh
index be82a75e542a7b7d8dab259da4e64dd265019dd1..e1abd1923033617540c915af4372ba42936326d0 100755 (executable)
--- a/t/t7400-submodule-basic.sh
+++ b/t/t7400-submodule-basic.sh
@@ -849,6 +849,19 @@ test_expect_success 'set up a second submodule' '
        git commit -m "submodule example2 added"
 '
 
+test_expect_success 'submodule deinit works on repository without submodules' '
+       test_when_finished "rm -rf newdirectory" &&
+       mkdir newdirectory &&
+       (
+               cd newdirectory &&
+               git init &&
+               >file &&
+               git add file &&
+               git commit -m "repo should not be empty"
+               git submodule deinit .
+       )
+'
+
 test_expect_success 'submodule deinit should remove the whole submodule section from .git/config' '
        git config submodule.example.foo bar &&
        git config submodule.example2.frotz nitfol &&