test.bats

#!/usr/bin/env bats

export SYSTEM_NAME="$(uname -s | tr '[:upper:]' '[:lower:]')"

@test "[add] default" {
  run make test
  echo "output: $output"
  echo "status: $status"
  assert_success
}

flunk() {
  {
    if [[ "$#" -eq 0 ]]; then
      cat -
    else
      echo "$*"
    fi
  }
  return 1
}

assert_equal() {
  if [[ "$1" != "$2" ]]; then
    {
      echo "expected: $1"
      echo "actual:   $2"
    } | flunk
  fi
}

assert_exit_status() {
  exit_status="$1"
  if [[ "$status" -ne "$exit_status" ]]; then
    {
      echo "expected exit status: $exit_status"
      echo "actual exit status:   $status"
    } | flunk
    flunk
  fi
}

assert_failure() {
  if [[ "$status" -eq 0 ]]; then
    flunk "expected failed exit status"
  elif [[ "$#" -gt 0 ]]; then
    assert_output "$1"
  fi
}

assert_success() {
  if [[ "$status" -ne 0 ]]; then
    flunk "command failed with exit status $status"
  elif [[ "$#" -gt 0 ]]; then
    assert_output "$1"
  fi
}

assert_output() {
  local expected
  if [[ $# -eq 0 ]]; then
    expected="$(cat -)"
  else
    expected="$1"
  fi
  assert_equal "$expected" "$output"
}

assert_output_contains() {
  local input="$output"
  local expected="$1"
  local count="${2:-1}"
  local found=0
  until [ "${input/$expected/}" = "$input" ]; do
    input="${input/$expected/}"
    found=$((found + 1))
  done
  assert_equal "$count" "$found"
}

assert_output_not_exists() {
  [[ -z "$output" ]] || flunk "expected no output, found some"
}