前几天在赛码网笔试，本地环境（WSL2）测试&调试，每次都需要输入测试样例，肉眼对比输出结果，感觉特别麻烦。
笔试完后就写了个小脚本，在这里分享一下，本人 shell 脚本写的也不是太很熟练，如有问题还望轻喷。
效果图：
使用方法为：./ojrun.sh [要执行的程序] [测试样例]，例如 ./ojrun.sh ./a.out test.txt。
测试样例的文本文件如下，每个 case 由 INPUT OUPUT END 三部分组成，INPUT-OUTPUT 为输入数据，OUTPUT-END 为输出数据。
现在还有许多情况没考虑：
1、运行超时，目前只能手动解决
2、输入/输出数据可能存在 INPUT OUPUT END 这三个标志字符。
# case 1
INPUT
1 3
2
1 1
3 1
OUTPUT
2
END
# case 2
INPUT
1 3
3
2 2
3 2
1 1
OUTPUT
3
END
#!/usr/bin/env bash
# this file is created by reget on 2023/04/27
# require: echo, test, grep, sed, mktemp, diff
input_flag="INPUT"
output_flag="OUTPUT"
end_flag="END"
# check the args num
if [ $# != "2" ]; then
echo "how to use: $0 program test_file"
echo "example: $0 ./a.out test.txt"
exit 1
fi
program=$1
test_file=$2
if ! test -x "${program}";then
echo -e "\e[1;31mError: program can not exec, program is ""${program}"""
exit 1
fi
if ! test -r "${test_file}";then
echo -e "\e[1;31mError: test file can not read, test file is ""${test_file}"""
exit 1
fi
input_flag_lines=$(grep -c "^${input_flag}$" "${test_file}")
output_flag_lines=$(grep -c "^${output_flag}$" "${test_file}")
end_flag_lines=$(grep -c "^${end_flag}$" "${test_file}")
# check the test file
if [ "${input_flag_lines}" == "${output_flag_lines}" ] && [ "${input_flag_lines}" == "${end_flag_lines}" ]; then
tmp_input_file=$(mktemp)
tmp_output_file=$(mktemp)
tmp_program_output_file=$(mktemp)
line_id=1
case_id=1
while read -r line
do
if [[ "$line" == "INPUT" ]]; then
input_start=${line_id}
elif [[ "$line" == "OUTPUT" ]]; then
input_end=${line_id}
output_start=${line_id}
elif [[ "$line" == "END" ]]; then
output_end=${line_id}
# run program
$(sed -n "$((input_start+1)), $((input_end-1))p" "${test_file}" > "${tmp_input_file}")
$(sed -n "$((output_start+1)), $((output_end-1))p" "${test_file}" > "${tmp_output_file}")
$(${program} < "${tmp_input_file}" > "${tmp_program_output_file}")
# check result
if diff "${tmp_program_output_file}" "${tmp_output_file}" > /dev/null; then
echo -e "\e[1;32mPass: pass case ${case_id}, ^v^"
((case_id++))
else
echo -e "\e[1;31mFail: fail to pass case ${case_id}, ToT"
echo -e "\e[1;36mInput:"
cat ${tmp_input_file}
echo -e "\e[1;36mAssert Output:"
cat ${tmp_output_file}
echo -e "\e[1;31mYour Output:"
cat ${tmp_program_output_file}
mv "${tmp_program_output_file}" your_output.tmp
mv "${tmp_output_file}" assert_output.tmp
mv "${tmp_input_file}" input.tmp
exit 1
fi
fi
((line_id++))
done < "${test_file}"
rm "${tmp_program_output_file}"
rm "${tmp_output_file}"
rm "${tmp_input_file}"
echo -e "\e[1;32mPass: pass all test case!!!"
else
echo -e "\e[1;31mError: illgal test file, file is ""${test_file}"""
exit 1
fi
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