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#!/bin/bash
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# to make the script fail safely
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set -euo pipefail
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out=${1:-output}
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echo -e "" > $out
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echo -e "Below is the feedback for your submission collatz.scala" >> $out
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echo -e "" >> $out
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# compilation tests
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function scala_compile {
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474
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(ulimit -t 30; JAVA_OPTS="-Xmx1g" scala-cli compile "$1" 2> c$out 1> c$out)
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}
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# functional tests
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function scala_assert {
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474
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(ulimit -t 30; JAVA_OPTS="-Xmx1g" scala-cli -i "$1" "$2" -e "urbanmain()" 2> /dev/null 1> /dev/null)
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}
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# purity test
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472
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function scala_vars {
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(sed 's/immutable/ok/g' c$out > cb$out;
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egrep '\bvar\b|\breturn\b|\.par\.|\.par |ListBuffer|AtomicInteger|mutable|util.control|new Array' cb$out 2> /dev/null 1> /dev/null)
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}
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346
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### compilation test
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echo -e "collatz.scala runs?" >> $out
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if (scala_compile collatz.scala)
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then
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echo -e " --> success" >> $out
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tsts=$(( 0 ))
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else
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echo -e " --> SCALA DID NOT RUN collatz.scala\n" >> $out
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echo -e " --> try running scala-cli compile collatz.scala on your own computer\n" >> $out
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tsts=$(( 1 ))
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fi
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# var, .par return, ListBuffer test
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#
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if [ $tsts -eq 0 ]
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then
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echo -e "collatz.scala does not contain VARS, RETURNS etc?" >> $out
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if (scala_vars collatz.scala)
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then
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echo -e " --> FAIL (make triple-sure your program conforms to the required format)\n" >> $out
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tsts=$(( 1 ))
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else
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360
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echo -e " --> success" >> $out
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tsts=$(( 0 ))
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fi
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fi
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### collatz tests
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if [ $tsts -eq 0 ]
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then
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echo -e "collatz.scala tests:" >> $out
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echo -e " collatz(1) == 0" >> $out
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echo -e " collatz(6) == 8" >> $out
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echo -e " collatz(9) == 19" >> $out
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if (scala_assert "collatz.scala" "collatz_test1.scala")
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then
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echo -e " --> success" >> $out
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else
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echo -e " --> ONE OF THE TESTS FAILED\n" >> $out
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fi
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fi
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### collatz-max tests
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if [ $tsts -eq 0 ]
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then
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echo -e " collatz_max(10) == (19, 9)" >> $out
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echo -e " collatz_max(100) == (118, 97)" >> $out
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echo -e " collatz_max(1000) == (178, 871)" >> $out
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echo -e " collatz_max(10000) == (261, 6171)" >> $out
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echo -e " collatz_max(100000) == (350, 77031)" >> $out
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echo -e " collatz_max(1000000) == (524, 837799)" >> $out
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if (scala_assert "collatz.scala" "collatz_test2.scala")
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then
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echo -e " --> success" >> $out
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else
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echo -e " --> ONE OF THE TESTS FAILED\n" >> $out
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fi
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fi
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343
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### last-odd tests
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if [ $tsts -eq 0 ]
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then
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echo -e " last_odd(113) == 85" >> $out
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echo -e " last_odd(84) == 21" >> $out
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echo -e " last_odd(605) == 341" >> $out
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if (scala_assert "collatz.scala" "collatz_test3.scala")
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then
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echo -e " --> success" >> $out
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else
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echo -e " --> ONE OF THE TESTS FAILED\n" >> $out
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fi
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fi
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