[autotest] fix broken test_that unittest

Test was broken by https://gerrit.chromium.org/gerrit/58475.

BUG=None
TEST=unit tests now passes

Change-Id: I0421cfb1a626ac1b2b6e377e4e80b19a7c04173e
Reviewed-on: https://gerrit.chromium.org/gerrit/59077
Tested-by: Aviv Keshet <akeshet@chromium.org>
Reviewed-by: Alex Miller <milleral@chromium.org>
Commit-Queue: Aviv Keshet <akeshet@chromium.org>
1 file changed