MimirTestRunner.sh

#!/bin/bash
wget -q https://raw.githubusercontent.com/toddawhittaker/MimirTestCoverage/master/hamcrest-core-1.3.jar
wget -q https://raw.githubusercontent.com/toddawhittaker/MimirTestCoverage/master/junit-4.13.jar
wget -q https://raw.githubusercontent.com/toddawhittaker/MimirTestCoverage/master/jacocoagent.jar
wget -q https://raw.githubusercontent.com/toddawhittaker/MimirTestCoverage/master/jacococli.jar
wget -q https://raw.githubusercontent.com/toddawhittaker/MimirTestCoverage/master/MimirTestRunner.java

# get rid of old grading files if exist
rm -f DEBUG
rm -f OUTPUT

# move all jar files into lib
mkdir -p lib
mv ./*.jar lib 2>/dev/null

# build up a nice classpath with all libraries
DIR=$(pwd)
export CLASSPATH=${DIR}/bin
count=$(find lib -type f -name "*.jar" 2>/dev/null | wc -l)
if [ "$count" != 0 ]
then 
  for filename in lib/*.jar; do
    export CLASSPATH=${CLASSPATH}:${DIR}/${filename}
  done
fi

# compile into separate bin directory (part of classpath)
javac -d bin ./*.java

# compile error triggers zero grade
if [ $? -ne 0 ]; then
  echo "Compile errors. Your score is 0%" > "${DIR}/DEBUG"
  echo 0 > "${DIR}/OUTPUT"
  exit 1
fi

# produce any student output for their own testing
# this doesn't count for coverage points.
if [ -f "RunMe.java" ]; then
    java RunMe >> "${DIR}/DEBUG"
fi

# run test cases instrumented with JaCoCo
java -javaagent:lib/jacocoagent.jar=destfile=results.exec MimirTestRunner >> "${DIR}/DEBUG"
pass_pct=$?
echo "Passed $pass_pct% of tests." >> "${DIR}/DEBUG"
#if [ $pass_pct -ne 100 ]; then
#  echo 0 > "${DIR}/OUTPUT"
#  echo "Since not all test cases have passed, your coverage score will be lowered." >> "${DIR}/DEBUG"
#  exit 1
#fi

# produce JaCoCo report as CSV
java -jar lib/jacococli.jar report results.exec --classfiles bin --csv results.csv --sourcefiles . --quiet #>> ${DIR}/DEBUG
if [ ! -f results.csv ]; then
  echo 0 > "${DIR}/OUTPUT"
  echo "No coverage results generated. Your score is 0%" >> "${DIR}/DEBUG"
  exit 1
fi

# ugly Bash processing of CSV file
total=0;
covered=0;
{
  echo ""
  echo "Coverage results:"
  echo ""
} >> "${DIR}/DEBUG"

counter=1
IFS=','
while read -r GROUP PACKAGE CLASS INSTRUCTION_MISSED \
  INSTRUCTION_COVERED BRANCH_MISSED BRANCH_COVERED \
  LINE_MISSED LINE_COVERED COMPLEXITY_MISSED \
  COMPLEXITY_COVERED METHOD_MISSED METHOD_COVERED
do
  # ignore coverage of test classes and the test runner
  if [[ ! ${CLASS} =~ .+Test(Runner)?$ ]]; then
    class_lines=$((LINE_MISSED+LINE_COVERED))
    class_branch=$((BRANCH_MISSED+BRANCH_COVERED))
    covered=$((covered+LINE_COVERED+BRANCH_COVERED))
    total=$((total+class_lines+class_branch))
	{
      echo "$counter. Class $CLASS"
      echo "     $LINE_COVERED of $class_lines lines covered"
      echo "     $BRANCH_COVERED of $class_branch branches covered"
	} >> "${DIR}/DEBUG"
	let counter++
  fi
done < <(tail -n +2 results.csv)

cover_pct=0
if [ $total -ne 0 ]; then
  cover_pct=$((covered*100/total))
fi

score=$((cover_pct*pass_pct/100))

{
  echo "$covered of $total elements covered."
  echo "Covered $cover_pct% of code."
  echo ""
  echo "Your score is $cover_pct% coverage * $pass_pct% passed tests = $score%"
} >> "${DIR}/DEBUG"
# produce final grade
echo "$score" > "${DIR}/OUTPUT"