MatchHash

Easily handle Hash in RSpec.

RSpec

match_hash defines one new RSpec matcher:

match_hash

Installation

Add this line to your application's Gemfile :

gem 'match_hash'

And then execute:

$ bundle

Or install it yourself as:

$ gem install match_hash

Usage

The new matcher could be used in RSpec as follows:

describe MatchHash do
  let(:expected) do
    {
      a11:11,
      a12:12,
      a13:13,
      a14:{
          b11:11,
          b12:12
      },
      a15:[1,2,3],
      a16:16,
      a17: [{b13: 13}]
    }
  end

  let(:actual) do
    {
      a11:11,
      a12:12,
      a13:13,
      a14:{
          b11:11,
          b12:12
      },
      a15:[3,2,1],
      a16:16,
      a17: [{b13: 14}]
    }
  end

  it "has a version number" do
    expect(MatchHash::VERSION).not_to be nil
  end

  it "expected hash match expected hash" do
    expect(expected).to match_hash(expected)
  end

  it "expected hash do not match actual hash and occured raise_error" do
    expect do
      expect(expected).to match_hash(actual)
    end.to raise_error(RSpec::Expectations::ExpectationNotMetError)
  end
end

Failure message

For example:

Failures:

  1) MatchHash expected hash match expected hash
     Failure/Error: expect(expected).to match_hash(actual)

       Diff:

       @@ -2,7 +2,7 @@
        :a12 => 12,
        :a13 => 13,
        :a14 => {:b11=>11, :b12=>12},
       -:a15 => [3, 2, 1],
       +:a15 => [1, 2, 3],
        :a16 => 16,
       -:a17 => [{:b13=>14}],
       +:a17 => [{:b13=>13}],

     # ./spec/match_hash_spec.rb:40:in `block (2 levels) in <top (required)>'

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/yukihirop/match_hash.

match_hash

Development