test

#!/bin/bash
#
# Used during competition in a Competitive Programming environnement. It's
# unwise (and pretty useless) to use this script in any other environnement.
#
# Produce Unit Tests for a named problem which source code is written in
# Python 3.
# The program take the first argument (which should be an integer linking to
# the problem number). Then performs its predefining tests, comparing them
# with its predefining outputs.
#
# The directory containing all resources for the problem must be
# named : `exo$NUMBER`.
# The source code'll be executed by the python3 interpreter, it should
# be named : `exo$NUMBER`
# All Inputs must be in their own directory named `inputs`. They must be
# named `input$INPUT_NUMBER`, and $INPUT_NUMBER must match the respective
# $OUTPUT_NUMBER for the outputs, miroring the inputs.
#
# Error codes:
# 1: Wrong number of arguments


readonly USAGE='Usage: test <problem_number>'

readonly PROBLEM_DIR_PREFIX='exo'
readonly SOURCE_FILE_PREFIX='exo'
readonly SOURCE_FILE_SUFFIX='.py'
readonly INPUTS_DIR='inputs'
readonly OUTPUTS_DIR='outputs'
readonly INPUT_PREFIX='input'
readonly INPUT_SUFFIX='.txt'
readonly OUTPUT_PREFIX='output'
readonly OUTPUT_SUFFIX='.txt'


if [ "$#" -ne 1 ]; then
  >&2 echo "Wrong number of arguments"
  >&2 echo "$USAGE"
  exit 1
fi

problem_dir=${PROBLEM_DIR_PREFIX}${1}
source_file=${problem_dir}/${SOURCE_FILE_PREFIX}${1}${SOURCE_FILE_SUFFIX}
number_of_inputs=`ls -l ${problem_dir}/${INPUTS_DIR}/* | grep -v ^d | wc -l`

for ((input_index=1;input_index<=$number_of_inputs;input_index++)); do
  echo "Input $input_index"

  input=${problem_dir}/${INPUTS_DIR}/${INPUT_PREFIX}${input_index}${INPUT_SUFFIX}
  output=${problem_dir}/${OUTPUTS_DIR}/${OUTPUT_PREFIX}${input_index}${OUTPUT_SUFFIX}
  printf "Answer  : "
  cat $input | python3 $source_file
  printf "Expected: "
  cat $output
  printf "\n\n"
done