- Switch do actual DI
- Add some more parameters for needed dependencies
- Create a factory interface, implement it in PageCommandFactory and add
wiring for it.
- Add new unit tests for DeletePage; unfortunately, this requires
conditionally disabling some code during tests due to dependencies on
legacy code that hasn't been migrated yet. I believe that these
temporary hacks are acceptable, since they allow us to use real unit
tests immediately.
- Adjust WikiPageDbTest: the two logging tests were identical as of
Ie0d9da2c8d273c93301921e1e108d9ffb381b8a5; and then the logging part
could just be part of the "main" test.
- Add integration tests for DeletePage. For now, these are all copying
their WikiPageDbTest counterpart. More tests will be added soon™.
Bug: T288758
Change-Id: I2fb79ed905ce621cb87f0658983d97148948da28
