The tests for recurrences in the rotated views do not pass at the moment.
Some of the tests test all views as the normal recurrence-tests do. In my opinion for the rotated tests this makes no sense, because multiweek and month views are not rotated. I believe these parts were copied from the normal recurrence tests. I would take the tests of these two views out here.
After having seen that the code of the rotated tests is exactly the same as the normal recurrence tests: Do we really need to check all the recurrences in rotated mode? Wouldn't it be better to check the rotated view in the view-tests in a single test instead of running all the recurrences through this?
After talking with Philipp, we decided to drop these tests and create a new test to test the rotated views independent of the recurrences. -> Bug 1365262 I keep the old tests in the repository for a while in case someone has valid objections