Re: [PATCH 1/2] t2200: check that "add -u" limits itself to subdirectory

Jeff King [off-list ref] writes:

We didn't seem to be testing this transition at all. I think it's sane
to do so now, and Junio's "now it is 2.0, let's switch" patch should
update the test.

Yes, but I am not sure if this is testing the right thing.

+# Note that this is scheduled to change in Git 2.0, when
+# "git add -u" will become full-tree by default.
+test_expect_success 'update did not touch files at root' '
+	cat >expect <<-\EOF &&
+	check
+	top
+	EOF
+	git diff-files --name-only >actual &&
+	test_cmp expect actual
+'

The last "git add -u" we have beforet his block is this test piece:

 test_expect_success 'update from a subdirectory' '
        (
                cd dir1 &&
                echo more >sub2 &&
                git add -u sub2
        )
 '

That is not "git add -u" without pathspec, which is the only thing
we are transitioning at Git 2.0 boundary.