Function compare

lib/api.js:117–145

@private

(expected, actual)

/** @private */
function compare (expected, actual) {
  if (expected instanceof RegExp) {
    if (typeof actual === 'object') return false
    if (typeof actual === 'string') return expected.test(actual)
  }

  if (typeof expected !== typeof actual) return false
  if (typeof expected !== 'object' || expected === null) {
    return expected === actual
  }

  if (Array.isArray(expected)) {
    return expected.every(exp => [].some.call(actual, act => compare(exp, act)))
  }

  return Object.keys(expected).every(key => {
    const ao = actual[key]
    const eo = expected[key]

    if (typeof eo === 'object' && eo !== null && ao !== null) {
      return compare(eo, ao)
    }
    if (typeof eo === 'boolean') {
      return eo !== (ao == null)
    }

    return ao === eo
  })
}