gistfile1.txt

  test "swapping products for collections" do
    c = create(:work)

    b1 = create(:book, collection: c)
    b2 = create(:book, collection: c)
    b3 = create(:book)

    result = CollectionMethods.swap_product_for_collection([b1,b2,b3])

    assert result.length == 2
    assert result.include? c

  end