#!/bin/bash
uname=`uname`
if [ "$uname" = "Darwin" ]; then
  date="gdate"
  readlink="greadlink"
  wc="gwc"
  sed="gsed"
  awk="gawk"
else
  date="date"
  readlink="readlink"
  wc="wc"
  sed="sed"
  awk="awk"
fi
start=$($date +%s.%N)
absdir=$($readlink -f $(dirname $0))
pass="\033[32mPASSED\033[0m"
fail="\033[31mFAILED\033[0m"
tests=0
passes=0
num=`find * -name '*.c' | $wc -L`
num=$((num-2))
fmt=`echo "%-$num""s"`
make > /dev/null
for i in $(find * -name '*.c' | sort); do
  asm=${i/.c/.asm}
  answer=`spim -noexception load $absdir/$asm 2> /dev/null | tail -n 1`
  exp_ans=`grep "##answer" $absdir/$i | $sed 's/\/\* ##answer:\s\+\([^\*]\+\)\b\s*\*\//\1/g'`
  printf $fmt "${i%.*}"
  echo -n " ... "
  if [ "$answer" == "$exp_ans" ]; then
    echo -e "$pass"
    passes=$((passes+1))
  else
    echo -e "$fail expected $exp_ans got $answer"
  fi
  tests=$((tests+1))
done
end=$($date +%s.%N)    
runtime=$(echo "$end $start" | $awk '{printf "%.2f", $1 - $2}')
echo -e "\n$passes/$tests passed in $runtime""s"
make clean > /dev/null
exit $((tests-passes))