testing-check_installed_or_missing_packages.sh

#
# check_installed_packages
#
check_installed_packages(){
     local PACKAGE_LIST=("$@") # Rebuild the array with rest of arguments

     for index in "${PACKAGE_LIST[@]}";
     do
         TEST_COUNT=$((TEST_COUNT + 1))
         IS_INSTALLED=$(awk '/Package:/ {print $2}' ${MNT_DIR}/var/lib/dpkg/status | grep -x ${index} || true)

         if [ -z "${IS_INSTALLED}" ]
         then
             test_failed "The package ${index} is missing"
         else
             test_succeeded "The package ${index} has been found"
             
         fi
     done
}


#
# check_missing_packages
#
check_missing_packages(){
     local PACKAGE_LIST=("$@") # Rebuild the array with rest of arguments

     for index in "${PACKAGE_LIST[@]}";
     do
         TEST_COUNT=$((TEST_COUNT + 1))
         IS_INSTALLED=$(awk '/Package:/ {print $2}' ${MNT_DIR}/var/lib/dpkg/status | grep -x ${index} || true)

         if [ -z "${IS_INSTALLED}" ]
         then
             test_succeeded "The package ${index} is missing"             
         else
             test_failed "The package ${index} has been found"
         fi
     done
}