film->examine_and_add_content (content);
BOOST_REQUIRE (!wait_for_jobs ());
BOOST_CHECK_EQUAL (content->full_length().get(), DCPTime::from_seconds(2).get());
film->examine_and_add_content (content);
BOOST_REQUIRE (!wait_for_jobs ());
BOOST_CHECK_EQUAL (content->full_length().get(), DCPTime::from_seconds(2).get());