Change user preferences (options page) and test some of the changes (by counting the entries of W box, for example).
This test is collection independant, but your collection must provide at least 5 completions for the queries W, C, F and 3 hits for the query "inf".
First initialize alle user preferences and then types in 'i', 'n', 'f', go to options page, changes all values and return to main page. There check count of boxes W, C, F and of the hits against the values we set the user preferences in the step before. Finally go to the options page again and check all values there against the values we set the user preferences in the step before.