t7814: show lack of alternate ODB-adding

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 <redacted>
Reviewed-by: Emily Shaffer <redacted>
Reviewed-by: Matheus Tavares <redacted>
Signed-off-by: Junio C Hamano <redacted>

diff --git a/t/t7814-grep-recurse-submodules.sh b/t/t7814-grep-recurse-submodules.sh
index 828cb3ba5818fd47b6466fd52235e1d5a54cb333..3172f5b936489e53e36243465b586eeb26c24ed0 100755 (executable)
--- 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 &&