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#!/bin/bash

# Usage: test-erlang-mode [options]
#
# Basic test script for erlang.el
#
# Options:
#   -f  - Forgiving mode.  Return success if no
#         suitable emacs is found.
#

invalid_emacs_rc=33

tmp=$(getopt --options hf --long help: -- "$@") || exit

eval set -- $tmp

while true
do
  case "$1" in
    -f)
      invalid_emacs_rc=0
      shift;;

    --)
      shift
      break;;

    -h|--help)
      echo
      sed -nr '/^# Usage:/,/^$/ s/^# ?//p' "$0"
      exit;;
  esac
done


set -e

cd $(dirname "$0")

if ! type emacs &> /dev/null
then
    echo "Skipping emacs test due to no emacs in PATH"
    exit "$invalid_emacs_rc"
fi

version="$(emacs --version | head -n1)"
version_number="${version#GNU Emacs }"
version_major="${version_number%%\.*}"


case "$version_major" in
    [0-9][0-9])
        if [ "$version_major" -lt 24 ]
        then
            echo "Skipping emacs test due to too old emacs ($version_major)"
            exit "$invalid_emacs_rc"
        fi;;
    *)
        echo "Skipping emacs test due to unsupported emacs version ($version)"
        exit "$invalid_emacs_rc";;
esac
     
set -x

# Test interpreted erlang-mode.
emacs -Q -batch -L . -l erlang.el -f erlang-mode

# Compile.
emacs -Q -batch -L . -f batch-byte-compile *.el

# Test compiled erlang-mode.
emacs -Q -batch -L . -l erlang.elc -f erlang-mode

# Run unit tests in interpreted mode.
emacs -Q -batch -L . -l erlang.el -l erlang-test.el \
      -f ert-run-tests-batch-and-exit

# Run unit tests in compiled mode.
emacs -Q -batch -L . -l erlang.elc -l erlang-test.elc \
      -f ert-run-tests-batch-and-exit