spec/elastic_apm/util/deep_dup_spec.rb

# Licensed to Elasticsearch B.V. under one or more contributor
# license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright
# ownership. Elasticsearch B.V. licenses this file to you under
# the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.

# frozen_string_literal: true

require 'spec_helper'

module ElasticAPM
  RSpec.describe Util::DeepDup do
    context 'hashes' do
      it 'makes a copy' do
        obj1 = Object.new
        obj2 = Object.new
        orig = { a: obj1, nested: { b: obj2 } }

        expect(Util::DeepDup.dup(orig)[:a]).to_not be obj1
        expect(Util::DeepDup.dup(orig)[:nested][:b]).to_not be obj2
      end
    end

    context 'arrays' do
      it 'makes a copy' do
        obj = Object.new
        orig = [obj]

        expect(orig.dup.first).to be obj
        expect(Util::DeepDup.dup(orig).first).to_not be obj
      end
    end
  end
end