message: Checks that value is array before calling include
diff: @@ -8,7 +8,9 @@ setup.findInContainer = function (container, key, value) {
  })
  for (const object of Object.keys(container)) {
  - if (container[object][key].includes(value)) {
  + const values = container[object][key]
  +
  + if (Array.isArray(values) && values.includes(value)) {
  console.log('Found ' + value + ' in ' + object)
  return container[object]
  }
  