t7814: show lack of alternate ODB-adding

jonathantanmy · gitster · commit 18a2f66d8a55 · 2021-09-08T11:48:13.000-07:00
The previous patches have made "git grep" no longer need to add
submodule ODBs as alternates, at least for the code paths tested in
t7814. Demonstrate this by making adding a submodule ODB as an alternate
fatal in this test.

Signed-off-by: Jonathan Tan &lt;jonathantanmy@google.com&gt;
Reviewed-by: Emily Shaffer &lt;emilyshaffer@google.com&gt;
Reviewed-by: Matheus Tavares &lt;matheus.bernardino@usp.br&gt;
Signed-off-by: Junio C Hamano &lt;gitster@pobox.com&gt;
diff --git a/t/t7814-grep-recurse-submodules.sh b/t/t7814-grep-recurse-submodules.sh
@@ -8,6 +8,9 @@ submodules.
 
 . ./test-lib.sh
 
+GIT_TEST_FATAL_REGISTER_SUBMODULE_ODB=1
+export GIT_TEST_FATAL_REGISTER_SUBMODULE_ODB
+
 test_expect_success 'setup directory structure and submodule' '
 	echo "(1|2)d(3|4)" >a &&
 	mkdir b &&
