diff -r 11396c17cd8b -r 716042628398 testing/collatz_test.sh
--- a/testing/collatz_test.sh	Fri Nov 10 09:23:23 2017 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,102 +0,0 @@
-#!/bin/bash
-
-# to make the script fail safely
-set -euo pipefail
-
-
-out=${1:-output}
-
-echo "" > $out
-
-echo "Below is the feedback for your submission collatz.scala" >> $out
-echo "" >> $out
-
-
-# compilation tests
-
-function scala_compile {
-  (ulimit -t 30 -m 1024000 ; scala "$1" 2>> $out 1>> $out) 
-}
-
-# functional tests
-
-function scala_assert {
-  (ulimit -t 30 -m 1024000 ; scala -i "$1" "$2" -e "" 2> /dev/null 1> /dev/null)
-}
-
-# purity test
-
-function scala_vars {
-   (egrep '\bvar\b|\breturn\b|\.par|ListBuffer|mutable' "$1" 2> /dev/null 1> /dev/null)
-}
-
-
-# var, .par return, ListBuffer test
-#
-echo "collatz.scala does not contain vars, returns etc?" >> $out
-
-if (scala_vars collatz.scala)
-then
-  echo "  --> fail" >> $out
-  tsts0=$(( 1 ))
-else
-  echo "  --> success" >> $out
-  tsts0=$(( 0 )) 
-fi
-
-### compilation test
-
-
-if  [ $tsts0 -eq 0 ]
-then 
-  echo "collatz.scala runs?" >> $out
-
-  if (scala_compile collatz.scala)
-  then
-    echo "  --> success" >> $out
-    tsts=$(( 0 ))
-  else
-    echo "  --> scala did not run collatz.scala" >> $out
-    tsts=$(( 1 )) 
-  fi
-else
-  tsts=$(( 1 ))     
-fi
-
-### collatz tests
-
-if [ $tsts -eq 0 ]
-then
-  echo "collatz.scala tests:" >> $out
-  echo "  collatz(1) == 0,1 or 4" >> $out
-  echo "  collatz(6) == 9" >> $out
-  echo "  collatz(9) == 20" >> $out
-
-  if (scala_assert "collatz.scala" "collatz_test1.scala")
-  then
-    echo "  --> success" >> $out
-  else
-    echo "  --> one of the tests failed" >> $out
-  fi
-fi
-
-### collatz-max tests
-
-if [ $tsts -eq 0 ]
-then
-  echo "  collatz_max(10) == (20, 9)" >> $out
-  echo "  collatz_max(100) == (119, 97)" >> $out
-  echo "  collatz_max(1000) == (179, 871)" >> $out
-  echo "  collatz_max(10000) == (262, 6171)" >> $out
-  echo "  collatz_max(100000) == (351, 77031)" >> $out
-  echo "  collatz_max(1000000) == (525, 837799)" >> $out
-
-  if (scala_assert "collatz.scala" "collatz_test2.scala") 
-  then
-    echo "  --> success" >> $out
-  else
-    echo "  --> one of the tests failed" >> $out
-  fi
-fi
-
-