* activity_date_in_activity_should_contain_text()
- Checks the presence of the given text in the activity's date info.
* activity_dates_information_in_activity_should_exist()
- Checks the presence of activity dates information in the activity
information output component.
* activity_dates_information_in_activity_should_not_exist()
- Checks the absence of activity dates information in the activity
information output component.