```ruby
require 'test_helper'

class DayTest < ActiveSupport::TestCase
  setup do
    @day = Factory.build(:day, :gross_turnover => 100.0, :net_turnover => 80.0)
  end

  should "output sensible string on to_s" do
    assert_equal "15.02.2010: brutto 100.00, netto 80.00", @day.to_s
  end

  context "create_bookings callback" do
    should "be called on save of new object" do
      day = Factory.build(:day)

      day.expects(:create_bookings)
      day.save
    end

    should "not be called on persisted record" do
      day = Factory.create(:day)

      day.expects(:create_bookings).never
      day.save
    end

    should "not be called on update" do
      day = Factory.create(:day)

      day.expects(:create_bookings).never
      day.update_attributes(:net_turnover => 90.0)
    end

    should "create 4 bookings" do
      BookingTemplate.expects(:create_booking).times(4)

      @day.send(:create_bookings)
    end
  end
end
```

Fix test where shoulda context did hide setup.
user
```ruby
require 'test_helper'

class DayTest < ActiveSupport::TestCase

  context "a closed day" do
    setup do
      @day = Factory.build(:closed_day, :gross_turnover => 100.0, :net_turnover => 80.0)
    end

    should "output a sensible string on to_s" do
      assert_equal "15.02.2010: brutto 100.00, netto 80.00", @day.to_s
    end
  end
  
  context "create_bookings callback" do
    should "be called on save of new object" do
      day = Factory.build(:day)

      day.expects(:create_bookings)
      day.save
    end

    should "not be called on persisted record" do
      day = Factory.create(:day)

      day.expects(:create_bookings).never
      day.save
    end

    should "not be called on update" do
      day = Factory.create(:day)

      day.expects(:create_bookings).never
      day.update_attributes(:net_turnover => 90.0)
    end

    should "create 4 bookings" do
      day = Factory.build(:day)

      BookingTemplate.expects(:create_booking).times(4)
      day.send(:create_bookings)
    end
  end
end
```
assistant