module RSpec::Support::FuzzyMatcher

def self.arrays_match?(expected_list, actual_list)
  return false if expected_list.size != actual_list.size
  expected_list.zip(actual_list).all? do |expected, actual|
    values_match?(expected, actual)
  end
end

def self.hashes_match?(expected_hash, actual_hash)
  return false if expected_hash.size != actual_hash.size
  expected_hash.all? do |expected_key, expected_value|
    actual_value = actual_hash.fetch(expected_key) { return false }
    values_match?(expected_value, actual_value)
  end
end

def self.values_match?(expected, actual)
  if Hash === actual
    return hashes_match?(expected, actual) if Hash === expected
  elsif Array === expected && Enumerable === actual && !(Struct === actual)
    return arrays_match?(expected, actual.to_a)
  end
  return true if expected == actual
  begin
    expected === actual
  rescue ArgumentError
    # Some objects, like 0-arg lambdas on 1.9+, raise
    # ArgumentError for `expected === actual`.
    false
  end
end