#!/bin/bash# to make the script fail safelyset -euo pipefailout=${1:-output}echo -e `date` >> $outecho -e "" > $outecho -e "Below is the feedback and provisional marks for your submission" >> $outecho -e "for core assignment 7. Please note all marks are provisional until" >> $outecho -e "ratified by the assessment board -- this is not an official" >> $outecho -e "results transcript." >> $outecho -e "" >> $out# marks for core CW7marks=$(( 0 ))echo -e "" >> $outecho -e "Below is the feedback for your submission danube.scala" >> $outecho -e "" >> $out# compilation testsfunction scala_compile { (ulimit -t 30; JAVA_OPTS="-Xmx1g" scala "$1" 2>> $out 1>> $out)}# functional testsfunction scala_assert { (ulimit -t 30; JAVA_OPTS="-Xmx1g" scala -i "$1" -- "$2" 2> /dev/null 1> /dev/null)}# purity testfunction scala_vars { (egrep '\bvar\b|\breturn\b|ListBuffer|new Array' "$1" 2> /dev/null 1> /dev/null)}#function scala_vars {# (egrep '\bvar\b|\breturn\b|\.par|ListBuffer|mutable|new Array' "$1" 2> /dev/null 1> /dev/null)#}# var, .par return, ListBuffer test#echo -e "danube.scala does not contain vars, returns, Arrays, ListBuffers etc?" | tee -a $outif (scala_vars danube.scala)then echo -e " --> TEST FAILED\n" | tee -a $out tsts0=$(( 1 )) else echo -e " --> success" | tee -a $out tsts0=$(( 0 )) fi### compilation testif [ $tsts0 -eq 0 ]then echo -e "danube.scala runs?" | tee -a $out if (scala_compile danube.scala) then echo -e " --> success" | tee -a $out tsts=$(( 0 )) else echo -e " --> SCALA DID NOT RUN danube.scala" | tee -a $out tsts=$(( 1 )) fielse tsts=$(( 1 )) fi### danube get_cvs_url testsif [ $tsts -eq 0 ]then echo -e "danube.scala tests:" | tee -a $out echo -e " val movies_url = \"\"\"https://nms.kcl.ac.uk/christian.urban/movies.csv\"\"\"" | tee -a $out echo -e " get_csv_url(movies_url).length == 9742" | tee -a $out if (scala_assert "danube.scala" "danube_test1.scala") then echo -e " --> success" | tee -a $out marks=$(( marks + 1 )) else echo -e " --> ONE OF THE TESTS FAILED\n" | tee -a $out fifi### danube processing testsif [ $tsts -eq 0 ]then echo -e " val good_ratings = process_ratings(ratings)" | tee -a $out echo -e " val movie_names = process_movies(movies)" | tee -a $out echo -e " " | tee -a $out echo -e " good_ratings.length == 48580 " | tee -a $out echo -e " movie_names.length == 9742 " | tee -a $out if (scala_assert "danube.scala" "danube_test2.scala") then echo -e " --> success" | tee -a $out marks=$(( marks + 1 )) else echo -e " --> ONE OF THE TESTS FAILED\n" | tee -a $out fifi### danube groupById testif [ $tsts -eq 0 ]then echo -e " val ls1 = List((\"1\", \"a\"), (\"2\", \"a\"), (\"1\", \"c\"), (\"2\", \"a\"), (\"1\", \"c\"))" | tee -a $out echo -e " val ls2 = List((\"1\", \"a\"), (\"1\", \"b\"), (\"2\", \"x\"), (\"3\", \"a\"), (\"2\", \"y\"), (\"3\", \"c\"))" | tee -a $out echo -e " groupById(ls1, Map()) == Map(1 -> List(c, c, a), 2 -> List(a, a))" | tee -a $out echo -e " groupById(ls2, Map()) == Map(1 -> List(b, a), 2 -> List(x, y), 3 -> List(c, a))" | tee -a $out echo -e " where the order in the lists is unimportant" | tee -a $out echo -e " val ls3 = (1 to 1000).map(_.toString).toList" | tee -a $out echo -e " val ls4 = ls3 zip ls3.tail" | tee -a $out echo -e " val ls5 = ls4 ::: ls4.reverse" | tee -a $out echo -e " groupById(ls5, Map()) == Map(1 -> List(2,2), 2 -> List(3,3), ....)" | tee -a $out if (scala_assert "danube.scala" "danube_test3.scala") then echo -e -e " --> success" | tee -a $out marks=$(( marks + 1 )) else echo -e -e " --> ONE OF THE TESTS FAILED\n" | tee -a $out fifi### danube favourites testsif [ $tsts -eq 0 ]then echo -e " val good_ratings = process_ratings(ratings)" | tee -a $out echo -e " val ratings_map = groupById(good_ratings, Map())" | tee -a $out echo -e " favourites(ratings_map, \"912\").length == 80 " | tee -a $out echo -e " favourites(ratings_map, \"858\").length == 158 " | tee -a $out echo -e " favourites(ratings_map, \"260\").length == 201 " | tee -a $out if (scala_assert "danube.scala" "danube_test4.scala") then echo -e " --> success" | tee -a $out marks=$(( marks + 1 )) else echo -e " --> ONE OF THE TESTS FAILED\n" | tee -a $out fifi### danube suggestions testsif [ $tsts -eq 0 ]then echo -e " val good_ratings = process_ratings(ratings)" | tee -a $out echo -e " val ratings_map = groupById(good_ratings, Map())" | tee -a $out echo -e " suggestions(ratings_map, \"912\").length == 4110 " | tee -a $out echo -e " suggestions(ratings_map, \"858\").length == 4883 " | tee -a $out echo -e " suggestions(ratings_map, \"260\").length == 4970 " | tee -a $out if (scala_assert "danube.scala" "danube_test5.scala") then echo -e " --> success" | tee -a $out marks=$(( marks + 1 )) else echo -e " --> ONE OF THE TESTS FAILED\n" | tee -a $out fifi### danube recommendation testsif [ $tsts -eq 0 ]then echo -e " recommendations(ratings_map, movies_map, \"1\").length == 2 " | tee -a $out echo -e " recommendations(ratings_map, movies_map, \"2\").length == 2 " | tee -a $out echo -e " recommendations(ratings_map, movies_map, \"3\").length == 2 " | tee -a $out echo -e " recommendations(ratings_map, movies_map, \"4\").length == 0 " | tee -a $out echo -e " recommendations(ratings_map, movies_map, \"5\").length == 2 " | tee -a $out if (scala_assert "danube.scala" "danube_test6.scala") then echo -e " --> success" | tee -a $out marks=$(( marks + 1 )) else echo -e " --> ONE OF THE TESTS FAILED\n" | tee -a $out fifi## final marksecho -e "" >> $outecho -e "Overall mark for CW 7 Core Part" | tee -a $outecho -e "$marks" | tee -a $out