Stubbing Time.now with RSpec

travel_to from ActiveSupport might serve the purpose better and might look as follows:

def test_date
  travel_to Time.zone.parse('1970-01-01')
  verify
  travel_back
end

Depending on your version of RSpec you might want to use the newer syntax:

allow(Time).to receive(:now).and_return(@time_now)

See RSpec Mocks 3.3

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