1 #!/bin/bash  | 
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     2   | 
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     3 # to make the script fail safely  | 
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     4 set -euo pipefail  | 
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     5   | 
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     6   | 
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     7 out=${1:-output} | 
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     8   | 
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     9 echo -e "" > $out  | 
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    10   | 
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    11 echo -e "Below is the feedback for your submission collatz.scala" >> $out  | 
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    12 echo -e "" >> $out  | 
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    13   | 
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    14   | 
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    15 # compilation tests  | 
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    16   | 
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    17 function scala_compile { | 
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    18   (ulimit -t 30; JAVA_OPTS="-Xmx1g" scala "$1" 2>> $out 1>> $out)   | 
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    19 }  | 
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    20   | 
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    21 # functional tests  | 
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    22   | 
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    23 function scala_assert { | 
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    24   (ulimit -t 30; JAVA_OPTS="-Xmx1g" scala -i "$1" -- "$2" -e "" 2> /dev/null 1> /dev/null)  | 
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    25 }  | 
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    26   | 
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    27 # purity test  | 
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    28   | 
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    29 function scala_vars { | 
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    30    (egrep '\bvar\b|\breturn\b|\.par|ListBuffer|collection.mutable|util.control|new Array' "$1" 2> /dev/null 1> /dev/null)  | 
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    31 }  | 
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    32   | 
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    33   | 
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    34 # var, .par return, ListBuffer test  | 
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    35 #  | 
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    36 echo -e "collatz.scala does not contain vars, returns etc?" >> $out  | 
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    37   | 
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    38 if (scala_vars collatz.scala)  | 
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    39 then  | 
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    40   echo -e "  --> FAIL (make triple-sure your program conforms to the required format)\n" >> $out  | 
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    41   tsts0=$(( 0 ))  | 
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    42 else  | 
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    43   echo -e "  --> success" >> $out  | 
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    44   tsts0=$(( 0 ))   | 
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    45 fi  | 
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    46   | 
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    47 ### compilation test  | 
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    48   | 
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    49   | 
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    50 if  [ $tsts0 -eq 0 ]  | 
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    51 then   | 
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    52   echo -e "collatz.scala runs?" >> $out  | 
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    53   | 
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    54   if (scala_compile collatz.scala)  | 
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    55   then  | 
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    56     echo -e "  --> success" >> $out  | 
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    57     tsts=$(( 0 ))  | 
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    58   else  | 
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    59     echo -e "  --> SCALA DID NOT RUN COLLATZ.SCALA\n" >> $out  | 
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    60     tsts=$(( 1 ))   | 
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    61   fi  | 
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    62 else  | 
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    63   tsts=$(( 1 ))       | 
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    64 fi  | 
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    65   | 
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    66 ### collatz tests  | 
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    67   | 
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    68 if [ $tsts -eq 0 ]  | 
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    69 then  | 
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    70   echo -e "collatz.scala tests:" >> $out  | 
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    71   echo -e "  collatz(1) == 0" >> $out  | 
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    72   echo -e "  collatz(6) == 8" >> $out  | 
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    73   echo -e "  collatz(9) == 19" >> $out  | 
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    74   | 
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    75   if (scala_assert "collatz.scala" "collatz_test1.scala")  | 
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    76   then  | 
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    77     echo -e "  --> success" >> $out  | 
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    78   else  | 
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    79     echo -e "  --> ONE OF THE TESTS FAILED\n" >> $out  | 
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    80   fi  | 
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    81 fi  | 
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    82   | 
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    83 ### collatz-max tests  | 
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    84   | 
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    85 if [ $tsts -eq 0 ]  | 
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    86 then  | 
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    87   echo -e "  collatz_max(10) == (19, 9)" >> $out  | 
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    88   echo -e "  collatz_max(100) == (118, 97)" >> $out  | 
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    89   echo -e "  collatz_max(1000) == (178, 871)" >> $out  | 
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    90   echo -e "  collatz_max(10000) == (261, 6171)" >> $out  | 
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    91   echo -e "  collatz_max(100000) == (350, 77031)" >> $out  | 
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    92   echo -e "  collatz_max(1000000) == (524, 837799)" >> $out  | 
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    93   | 
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    94   if (scala_assert "collatz.scala" "collatz_test2.scala")   | 
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    95   then  | 
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    96     echo -e "  --> success" >> $out  | 
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    97   else  | 
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    98     echo -e "  --> ONE OF THE TESTS FAILED\n" >> $out  | 
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    99   fi  | 
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   100 fi  | 
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   101   | 
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   102   | 
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   103 ### last-odd tests  | 
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   104   | 
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   105 if [ $tsts -eq 0 ]  | 
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   106 then  | 
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   107   echo -e "  last_odd(113) == 85" >> $out  | 
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   108   echo -e "  last_odd(84) == 21" >> $out  | 
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   109   echo -e "  last_odd(605) == 341" >> $out  | 
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   110   | 
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   111   if (scala_assert "collatz.scala" "collatz_test3.scala")   | 
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   112   then  | 
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   113     echo -e "  --> success" >> $out  | 
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   114   else  | 
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   115     echo -e "  --> ONE OF THE TESTS FAILED\n" >> $out  | 
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   116   fi  | 
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   117 fi  | 
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