| 
210
 | 
     1  | 
  | 
| 
 | 
     2  | 
  | 
| 
 | 
     3  | 
assert(get_january_data("GOOG", 1980) == List())
 | 
| 
 | 
     4  | 
  | 
| 
 | 
     5  | 
assert(get_january_data("GOOG", 2010).head == "2010-01-04,311.349976")
 | 
| 
158
 | 
     6  | 
  | 
| 
 | 
     7  | 
  | 
| 
 | 
     8  | 
  | 
| 
210
 | 
     9  | 
  | 
| 
 | 
    10  | 
/*
  | 
| 
169
 | 
    11  | 
assert(CW6c.get_prices(List("BIDU"), 2004 to 2008) == 
 | 
| 
 | 
    12  | 
       List(List(None), List(None), 
  | 
| 
 | 
    13  | 
            List(Some(6.35)), List(Some(12.241)), 
  | 
| 
 | 
    14  | 
            List(Some(38.188))))
  | 
| 
 | 
    15  | 
  | 
| 
 | 
    16  | 
  | 
| 
 | 
    17  | 
assert(CW6c.get_prices(List("GOOG", "AAPL"), 2010 to 2012) ==
 | 
| 
 | 
    18  | 
       List(List(Some(311.349976), Some(27.505054)), 
  | 
| 
 | 
    19  | 
            List(Some(300.222351), Some(42.357094)), 
  | 
| 
 | 
    20  | 
            List(Some(330.555054), Some(52.852215))))
  | 
| 
210
 | 
    21  | 
*/
  |