The Bechdel test is a famous test of film to measure whether a movie represents women as more than just accessories for the male cast. Specifically, the test is passed if a film features two women who have a conversation about something other than a man. Surprisingly, a lot of films fail this test.
The Ulvaeus test is a fictional test in the same vein named after Bjorn Ulvaeus, a prominent member of the band ABBA. Presumably, this test might be passed if a film contains a musical segment featuring the works of the band ABBA. This would be a clever pairing for this film, as ABBA has a song called Waterloo and the Napoleonic Wars ended with the Battle of Waterloo.