#!/usr/bin/env bash

tmp_out="$(mktemp)"

if [ -f "${0%_test.c}.c" ]; then
	SRC="${0%_test.c}.c"
else
	SRC="$($(type -P basename) -- "${0%_test.c}.c")"
fi
grep -A9999 -- "[S]TART_OF_C_FILE" "${0}" | cc -Wall -Wextra -Werror -o "${tmp_out}" -xc "${SRC}" -

if [ ! "${?}" = "0" ] || [ ! -f "${tmp_out}" ]; then
  printf "\e[101;37m%s\e[m\n" "Could not compile"
  exit 1
fi

diff --expand-tabs --left-column --width="60" --side-by-side --label="Expected Output" --label="    Test Output" -- <("${tmp_out}" 2>&1 1>/dev/null) <("${tmp_out}" 2>/dev/null) && { printf "\e[102;30m%s\e[m\n" "All tests passed"; exit_status="0"; } || { printf "\e[101;37m%s\e[m\n" "At least one test failed"; exit_status="1"; }
rm -f -- "${tmp_out}"

exit -- "${exit_status}"
// START_OF_C_FILE
#include <stdio.h>
#include <unistd.h>

#define test(out_prefix, expected_string, func, ...) \
    do { \
        fprintf(stderr, "Case:%s:%s", out_prefix, expected_string); \
        fflush(stderr); \
        int old_stderr_fd = dup(2); \
        dup2(1, 2); \
        fprintf(stdout, "Case:%s:", out_prefix); \
        fflush(stdout); \
        func(__VA_ARGS__); \
        fflush(stdout); \
        dup2(old_stderr_fd, 2); \
    } while(0)

int ft_isdigit(int c);

int main(){
  test("'0'", "1\n", printf, "%d\n", ft_isdigit('0'));
  test("'1'", "1\n", printf, "%d\n", ft_isdigit('1'));
  test("'2'", "1\n", printf, "%d\n", ft_isdigit('2'));
  test("'3'", "1\n", printf, "%d\n", ft_isdigit('3'));
  test("'4'", "1\n", printf, "%d\n", ft_isdigit('4'));
  test("'5'", "1\n", printf, "%d\n", ft_isdigit('5'));
  test("'6'", "1\n", printf, "%d\n", ft_isdigit('6'));
  test("'7'", "1\n", printf, "%d\n", ft_isdigit('7'));
  test("'8'", "1\n", printf, "%d\n", ft_isdigit('8'));
  test("'9'", "1\n", printf, "%d\n", ft_isdigit('9'));
  test(  "0", "0\n", printf, "%d\n", ft_isdigit(0));
  test(  "1", "0\n", printf, "%d\n", ft_isdigit(1));
  test("127", "0\n", printf, "%d\n", ft_isdigit(127));
  test("255", "0\n", printf, "%d\n", ft_isdigit(255));
  test( "-1", "0\n", printf, "%d\n", ft_isdigit(-1));
  return 0;
j