DeepMatching

This allows you to get detailed error messages on exactly where your heavily nested hashes differ

actual   = {b: {c: 1, [{d: {e: 'actual_value'}}]}}
expected = {b: {c: 5, [{d: {e: 'expected_value'}}]}}

aggregate_failures do
  expect_deep_matching(actual, expected)
end

  Got 2 failures from failure aggregation block
  1) Expected nested hash key at 'b.c'
        to eq
        # 5,
        but got
        1
  2) Expected nested hash key at 'b.[0].d.e'
        to eq
        # 'expected_value',
        but got
        'actual_value'

Note, only keys in the expected hash are checked. If the actual hash has extra keys, they are ignored. In this way it acts somewhat like expect(actual).to match(hash_including(expected))

gem 'deep_matching'

require 'deep_matching'
RSpec.configure do |config|
  config.include DeepMatching
end

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and the created tag, and push the .gem file to rubygems.org.

Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/deep_matching.

The gem is available as open source under the terms of the MIT License.