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#!/bin/bash
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set -e
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out=${1:-output}
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echo "" > $out
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echo "Below is the feedback for your submission for drumb.scala" >> $out
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echo "" >> $out
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# compilation tests
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function scala_compile {
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  (ulimit -t 30 -m 1024000 ; scala "$1" 2>> $out 1>> $out) 
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}
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# functional tests
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function scala_assert {
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  (ulimit -t 30 -m 1024000 ; scala -i "$1" "$2" -e "" 2> /dev/null 1> /dev/null)
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130
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}
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# purity test
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function scala_vars {
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   (egrep '\bvar\b|\breturn\b|\.par|ListBuffer|mutable' "$1" 2> /dev/null 1> /dev/null)
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}
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# var, .par return, ListBuffer test
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#
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echo "drumb.scala does not contain vars, returns etc?" >> $out
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if (scala_vars drumb.scala)
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then
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  echo "  --> fail" >> $out
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  tsts0=$(( 1 ))
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else
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  echo "  --> success" >> $out
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  tsts0=$(( 0 )) 
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fi
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# compilation test
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if  [ $tsts0 -eq 0 ]
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then 
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  echo "drumb.scala runs?" >> $out
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  if (scala_compile alcohol.scala)
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  then
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    echo "  --> success" >> $out
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    tsts=$(( 0 ))
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  else
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    echo "  --> scala did not run alcohol.scala" >> $out
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    tsts=$(( 1 )) 
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  fi
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else
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  tsts=$(( 1 ))     
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fi
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### get prices tests
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if [ $tsts -eq 0 ]
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then
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  echo "  get_prices(List(\"GOOG\", \"AAPL\"), 2010 to 2012) ==" >> $out
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  echo "       List(List(Some(311.349976), Some(27.505054))," >> $out
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  echo "            List(Some(300.222351), Some(42.357094))," >> $out
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  echo "            List(Some(330.555054), Some(52.852215)))" >> $out
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  if (scala_assert "drumb.scala" "drumb_test1.scala")
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  then
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    echo "  --> success" >> $out
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  else
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    echo "  --> test failed" >> $out
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  fi
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fi
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### get_deltas_test
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if [ $tsts -eq 0 ]
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then
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  echo "  get_deltas(get_prices(List(\"GOOG\", \"AAPL\"), 2010 to 2012)) == " >> $out
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  echo "    List(List(Some(-0.03573992567129673), Some(0.5399749442411563)), " >> $out
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  echo "         List(Some(0.10103412653643493), Some(0.2477771728154912)))" >> $out
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  if (scala_assert "drumb.scala" "drumb_test2.scala") 
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  then
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    echo "  --> success" >> $out
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  else
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    echo "  --> test failed" >> $out
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  fi
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fi
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### yield_tests, investment_test
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if [ $tsts -eq 0 ]
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then
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  echo "  yearly_yield(get_deltas(<<GOOG+AAPL 2010 - 2012>>), 100, 0) == 125" >> $out
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135
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  echo "" >> $out
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  echo "  investment(rstate_portfolio, 1978 to 2017, 100) == 30839" >> $out
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  echo "  investment(bchips_portfolio, 1978 to 2017, 100) == 349597" >> $out
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  if (scala_assert "drumb.scala" "drumb_test3.scala") 
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  then
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    echo "  --> success" >> $out
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  else
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    echo "  --> test failed" >> $out
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  fi
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fi
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