test1.sh

#!/bin/bash

if [ ! -d "./provided_tests" ]; then
    echo "Error: tests directory not found!"
    exit 1
fi

if [ ! -e "./a.out" ]; then
    echo "Error: a.out not found!"
    exit 1
fi

if [ ! -x "./a.out" ]; then
    echo "Error: a.out not executable!"
    exit 1
fi

let count=0
let all=0

mkdir -p ./output

for test_file in $(find ./provided_tests -type f -name "*.txt" | sort); do
#for test_file in $(find ./provided_tests/Error_Code_1 -type f -name "*.txt" | sort); do
#for test_file in $(find ./provided_tests/Error_Code_2 -type f -name "*.txt" | sort); do
#for test_file in $(find ./provided_tests/Error_Code_3 -type f -name "*.txt" | sort); do
#for test_file in $(find ./provided_tests/Error_Code_4 -type f -name "*.txt" | sort); do
#for test_file in $(find ./provided_tests/Error_Code_5 -type f -name "*.txt" | sort); do
#for test_file in $(find ./provided_tests/No_Error -type f -name "*.txt" | sort); do
#for test_file in $(find ./provided_tests/Syntax_Error -type f -name "*.txt" | sort); do
    all=$((all+1))
    name=`basename ${test_file} .txt`
    expected_file=${test_file}.expected
    output_file=./output/${name}.output
    diff_file=./output/${name}.diff
    ./a.out < ${test_file} > ${output_file}


    folder_name="$(cut -d'/' -f3 <<<"${test_file}")"
	
    if [ ${folder_name} = "Syntax_Error" ]; then
	    	diff -Bw ${expected_file} ${output_file} > ${diff_file}
	
		out=$(<${output_file})
		exp=$(<${expected_file})

		if [[ ${exp} == "SYNTAX ERROR !&%!" ]]; then
			if [[ ${out} == "SYNTAX ERROR !&%!" ]]; then
				count=$((count+1))
				echo "${name}: OK"
			else
				echo "${name}: Output does not match expected:"
				echo "--------------------------------------------------------"
				cat ${diff_file}
			fi
		else
			if [[ ${out} == "SYNTAX ERROR !&%!" ]]; then
				echo "${name}: Output does not match expected:"
				echo "--------------------------------------------------------"
				cat ${diff_file}
			else
				count=$((count+1))
				echo "${name}: OK"
			fi
		fi
            
    else


	    diff -Bw ${expected_file} ${output_file} > ${diff_file}
		
	    echo
	    if [ -s ${diff_file} ]; then
		echo "${name}: Output does not match expected:"
		echo "--------------------------------------------------------"
		cat ${diff_file}
	    else
		count=$((count+1))
		echo "${name}: OK"
	    fi
    fi
    echo "========================================================"
    rm -f ${output_file}
    rm -f ${diff_file}
done

echo
echo "Passed $count tests out of $all"
echo

rmdir ./output