#!/bin/bash

generate_file_to_be_sourced()
{
  local file_to_be_sourced
  file_to_be_sourced="$(mktemp)"
  cat << "EOF" > "${file_to_be_sourced}"
declare -a tmp='([0]="1" [1]="2")'
EOF
  echo "${file_to_be_sourced}"
}

foo()
{
  source "${g_file_to_be_sourced}"
  
  if declare -p tmp &> /dev/null && [ "${#tmp[@]}" = "2" ]
  then
    echo "test #2: OK"
  else
    echo "test #2: NOK"
  fi
  unset tmp
}

echo "bash version: ${BASH_VERSION}"
echo

declare -r g_file_to_be_sourced="$(generate_file_to_be_sourced)"
echo "content of file to be sourced:"
cat "${g_file_to_be_sourced}"
echo

source "${g_file_to_be_sourced}"

if declare -p tmp &> /dev/null && [ "${#tmp[@]}" = "2" ]
then
  echo "test #1: OK"
else
  echo "test #1: NOK"
fi
unset tmp

foo

rm "${g_file_to_be_sourced}"