1 /*def myassert(cond : => Boolean) = {

     2   try {

     3     assert(cond)

     4   } catch { 

     5     case _ : Throwable => System.exit(1)

     6   }

     7 }

     8 */

     9 assert(CW6b.get_prices(List("BIDU"), 2004 to 2008) ==

    10    List(List(None), List(None), List(Some(6.35)), 

    11         List(Some(12.241)), List(Some(38.188))))

    12 

    13 

    14 assert(CW6b.get_prices(List("GOOG", "AAPL"), 2010 to 2012) ==

    15    List(List(Some(312.204773), Some(26.782711)), 

    16         List(Some(301.0466), Some(41.244694)), 

    17         List(Some(331.462585), Some(51.464207))))