#!/usr/bin/env bash

set -euo pipefail
IFS=$'\n\t'

repo_root=$(git rev-parse --show-toplevel)
if [ "$repo_root" != "$PWD" ]; then
  printf "%s\n" "[ERROR] This scripts requires execution from the repository root directory."
  printf "\t%s\t%s\n" "Repo root dir:" "$repo_root"
  printf "\t%s\t%s\n\n" "Current dir:" "$PWD"
  exit 1
fi

test_directory="test"
bats_options=(--timing --print-output-on-failure)

if command -v parallel >/dev/null; then
  # enable parallel jobs
  bats_options=("${bats_options[@]}" --jobs 2 --no-parallelize-within-files)
elif [[ -n "${CI-}" ]]; then
  printf "* %s\n" "GNU parallel should be installed in the CI environment. Please install and rerun the test suite."
  exit 1
else
  printf "* %s\n" "For faster test execution, install GNU parallel."
fi

printf "* %s\n" "Running Bats in directory '${test_directory}' with options:" "${bats_options[@]}"
bats "${bats_options[@]}" "${test_directory}"