Petr Duda

- [x] stop calling static methods in tests as non-static - [x] use assertSame() where assertEquals() is not explicitly needed - [x] use assertCount() after assertContains() for array comparison -...

- [x] stop calling static methods in tests as non-static - [x] use assertSame() where assertEquals() is not explicitly needed - [x] use assertCount() after assertContains() for array comparison -...