t7400: add a testcase for submodule status on empty dirs

We have test coverage for "git submodule status" output in
various cases, i.e.

    1) not-init, not-cloned: status should initially be "missing"
    2) init, not-cloned: status should be "missing"
    3) not-init, cloned:
    4) init, cloned: status should be "up-to-date" after update
    4.1) + modified: status should be "modified" after submodule commit
    4.2) + modified, committed: status should be "up-to-date" after update

but the cases 2) and 3) are not covered.

Test that submodule status reports initialized but not cloned
submodules as missing to fill the gap in test coverage; this covers
case (2) above, but case (3) remains uncovered.

Signed-off-by: Peter Kaestle <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: Peter Kaestle

t/t7400-submodule-basic.sh

@@ -377,6 +377,14 @@ test_expect_success 'init should register submodule url in .git/config' '
 	test_cmp expect url
 '
 
+test_expect_failure 'status should still be "missing" after initializing' '
+	rm -fr init &&
+	mkdir init &&
+	git submodule status >lines &&
+	rm -fr init &&
+	grep "^-$rev1" lines
+'
+
 test_failure_with_unknown_submodule () {
 	test_must_fail git submodule $1 no-such-submodule 2>output.err &&
 	test_i18ngrep "^error: .*no-such-submodule" output.err