diff -r 663c2a9108d1 -r 4de31fdc0d67 main_testing1/drumb_test.sh
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main_testing1/drumb_test.sh	Mon Nov 02 02:31:44 2020 +0000
@@ -0,0 +1,191 @@
+#!/bin/bash
+set -euo pipefail
+
+out=${1:-output}
+
+echo -e "" > $out
+
+echo -e "Below is the feedback for your submission for drumb.scala" >> $out
+echo -e "" >> $out
+
+# compilation tests
+
+function scala_compile {
+  (ulimit -t 30; JAVA_OPTS="-Xmx1g" scala -Xprint:parser "$1" 2> c$out 1> c$out)
+}
+
+# functional tests
+
+function scala_assert {
+  (ulimit -t 30; JAVA_OPTS="-Xmx1g" scala -i "$1" -- "$2" -e "" 2> /dev/null 1> /dev/null)
+}
+
+# purity test
+
+function scala_vars {
+   (egrep '\bvar\b|\breturn\b|\.par\.|\.par |ListBuffer|mutable|util.control|new Array' c$out 2> /dev/null 1> /dev/null)
+}
+
+
+
+
+
+# compilation test
+echo -e "drumb.scala runs?" >> $out
+
+if (scala_compile drumb.scala)
+then
+    echo -e "  --> success" >> $out
+    tsts=$(( 0 ))
+else
+    echo -e "  --> SCALA DID NOT RUN drumb.scala" >> $out
+    tsts=$(( 1 )) 
+fi
+
+
+
+# var, .par return, ListBuffer test
+#
+
+if [ $tsts -eq 0 ]
+then
+    echo -e "drumb.scala does not contain vars, returns etc?" >> $out
+
+    if (scala_vars drumb.scala)
+    then
+	echo -e "  --> FAIL (make triple-sure your program conforms to the required format)" >> $out
+	tsts=$(( 1 ))
+    else
+	echo -e "  --> success" >> $out
+	tsts=$(( 0 )) 
+    fi
+fi    
+
+
+### get january data
+
+if [ $tsts -eq 0 ]
+then
+  echo -e "  get_january_data(\"GOOG\", 1980) == List()" >> $out
+  echo -e "  get_january_data(\"GOOG\", 2010).head == \"2010-01-04,312.204773\"" >> $out
+
+  if (scala_assert "drumb.scala" "drumb_test1.scala")
+  then
+    echo -e "  --> success" >> $out
+  else
+    echo -e "  --> ONE OF THE TESTS FAILED\n" >> $out
+  fi
+fi
+
+### get first price
+
+if [ $tsts -eq 0 ]
+then
+  echo -e "  get_first_price(\"GOOG\", 1980) == None" >> $out
+  echo -e "  get_first_price(\"GOOG\", 2010) == Some(312.204773)" >> $out  
+
+  if (scala_assert "drumb.scala" "drumb_test2.scala")
+  then
+    echo -e "  --> success" >> $out
+  else
+    echo -e "  --> ONE OF THE TESTS FAILED\n" >> $out
+  fi
+fi
+
+### get prices tests
+
+if [ $tsts -eq 0 ]
+then
+  echo "  get_prices(List(\"GOOG\", \"AAPL\"), 2010 to 2012) ==" >> $out
+  echo "       List(List(Some(312.204773), Some(26.782711))," >> $out
+  echo "            List(Some(301.0466),   Some(41.244694))," >> $out
+  echo "            List(Some(331.462585), Some(51.464207)))" >> $out
+
+  if (scala_assert "drumb.scala" "drumb_test3.scala")
+  then
+    echo -e "  --> success" >> $out
+  else
+    echo -e "  --> ONE OF THE TESTS FAILED\n" >> $out
+  fi
+fi
+
+### get_delta_test
+
+if [ $tsts -eq 0 ]
+then
+  echo -e "  get_delta(None, None) == None" >> $out
+  echo -e "  get_delta(Some(50.0), None) == None" >> $out
+  echo -e "  get_delta(None, Some(100.0)) == None" >> $out
+  echo -e "  get_delta(Some(50.0), Some(100.0)) == Some(1.0)" >> $out
+
+  if (scala_assert "drumb.scala" "drumb_test4.scala")
+  then
+      echo -e "  --> success" >> $out
+  else
+      echo -e "  --> ONE OF THE TESTS FAILED\n" >> $out
+  fi
+fi
+
+
+### get_deltas_test
+
+if [ $tsts -eq 0 ]
+then
+  echo -e "  get_deltas(get_prices(List(\"GOOG\", \"AAPL\"), 2010 to 2012)) == " >> $out
+  echo -e "    List(List(Some(-0.03573991804411003), Some(0.539974575389325)), " >> $out
+  echo -e "         List(Some(0.10103414222249969), Some(0.24777764141006836)))" >> $out
+  echo -e "" >> $out
+  echo -e "  get_deltas(get_prices(List(\"BIDU\"), 2004 to 2008)) == " >> $out
+  echo -e "    List(List(None), List(None),                          " >> $out
+  echo -e "         List(Some(0.9277165354330709)), List(Some(2.119679764725104))) " >> $out
+  
+  if (scala_assert "drumb.scala" "drumb_test5.scala") 
+  then
+     echo -e "  --> success" >> $out
+  else
+     echo -e "  --> ONE OF THE TESTS FAILED\n" >> $out
+  fi
+fi
+
+
+### yield_tests
+
+if [ $tsts -eq 0 ]
+then
+  echo -e "  val ds = get_deltas(get_prices(List(\"GOOG\", \"AAPL\"), 2010 to 2012))" >> $out
+  echo -e "  yearly_yield(ds, 100, 0) == 125" >> $out
+  echo -e "  yearly_yield(ds, 100, 1) == 117" >> $out
+  
+  if (scala_assert "drumb.scala" "drumb_test6.scala") 
+  then
+      echo -e "  --> success" >> $out
+  else
+      echo -e "  --> ONE OF THE TESTS FAILED\n" >> $out
+  fi
+fi
+
+
+### investment_test
+
+if [ $tsts -eq 0 ]
+then
+  echo -e "  All results need to be in the range of -/+ 1% of the given values."   >> $out
+  echo -e "   investment(List(\"GOOG\", \"AAPL\", \"BIDU\"), 2000 to 2000, 100) == 100"   >> $out
+  echo -e "   investment(List(\"GOOG\", \"AAPL\", \"BIDU\"), 2000 to 2001, 100) == 27 "   >> $out
+  echo -e "   investment(List(\"GOOG\", \"AAPL\", \"BIDU\"), 2000 to 2002, 100) == 42 "   >> $out
+  echo -e "   investment(List(\"GOOG\", \"AAPL\", \"BIDU\"), 2000 to 2003, 100) == 27 "   >> $out
+  echo -e "   investment(List(\"GOOG\", \"AAPL\", \"BIDU\"), 2000 to 2004, 100) == 38 "   >> $out
+  echo -e "   investment(List(\"GOOG\", \"AAPL\", \"BIDU\"), 2000 to 2005, 100) == 113"   >> $out
+  echo -e "   investment(List(\"GOOG\", \"AAPL\", \"BIDU\"), 2000 to 2006, 100) == 254"   >> $out
+  echo -e "   investment(List(\"GOOG\", \"AAPL\", \"BIDU\"), 2000 to 2007, 100) == 349"   >> $out
+  echo -e "   investment(List(\"GOOG\", \"AAPL\", \"BIDU\"), 1990 to 2017, 100) == 11504"   >> $out
+  
+  
+  if (scala_assert "drumb.scala" "drumb_test7.scala") 
+  then
+    echo -e "  --> success" >> $out
+  else
+    echo -e "  --> ONE OF THE TESTS FAILED\n" >> $out
+  fi
+fi
+