)
'
+test_expect_success 'reading nested submodules config' '
+ (cd super &&
+ git init submodule/nested_submodule &&
+ echo "a" >submodule/nested_submodule/a &&
+ git -C submodule/nested_submodule add a &&
+ git -C submodule/nested_submodule commit -m "add a" &&
+ git -C submodule submodule add ./nested_submodule &&
+ git -C submodule add nested_submodule &&
+ git -C submodule commit -m "added nested_submodule" &&
+ git add submodule &&
+ git commit -m "updated submodule" &&
+ echo "./nested_submodule" >expect &&
+ test-tool submodule-nested-repo-config \
+ submodule submodule.nested_submodule.url >actual &&
+ test_cmp expect actual
+ )
+'
+
+# When this test eventually passes, before turning it into
+# test_expect_success, remember to replace the test_i18ngrep below with
+# a "test_must_be_empty warning" to be sure that the warning is actually
+# removed from the code.
+test_expect_failure 'reading nested submodules config when .gitmodules is not in the working tree' '
+ test_when_finished "git -C super/submodule checkout .gitmodules" &&
+ (cd super &&
+ echo "./nested_submodule" >expect &&
+ rm submodule/.gitmodules &&
+ test-tool submodule-nested-repo-config \
+ submodule submodule.nested_submodule.url >actual 2>warning &&
+ test_i18ngrep "nested submodules without %s in the working tree are not supported yet" warning &&
+ test_cmp expect actual
+ )
+'
+
test_done