A new helper to freeze time in Rails 5.2

This one is a simple quality-of-life improvement.

Added time helper method `freeze_time` which is an alias for `travel_to Time.now` by…

So, in Rails 5.2, instead of you doing:

travel_to(Time.current) do
  # ...
end

You can actually use this new freeze_time helper:

freeze_time do
  # ...
end

Internally, both of these methods are just mocking Time.current or Time.now to return given time, essentially “freezing the time”. I’m never a fan of travel_to(current_time) as I feel that it reads weird. I’m going to just use freeze_time from now on if the situation allows.