Added unit tests for jsonapi_indifferent_hash.

Author: stas

spec/jsonapi/rspec_spec.rb

@@ -0,0 +1,31 @@
+require 'securerandom'
+require 'spec_helper'
+
+RSpec.describe JSONAPI::RSpec, '#as_indifferent_hash' do
+  let(:doc) do
+    {
+      id: SecureRandom.uuid,
+      list: [
+        { one: 1, 'one + one' => :two }
+      ],
+      hash: { key: :value, 'another key' => 'another value' }
+    }
+  end
+
+  it do
+    expect(JSONAPI::RSpec.as_indifferent_hash(doc)).not_to eq(
+      JSON.parse(JSON.generate(doc))
+    )
+  end
+
+  context 'with jsonapi indifferent hash enabled' do
+    before(:all) { ::RSpec.configuration.jsonapi_indifferent_hash = true }
+    after(:all) { ::RSpec.configuration.jsonapi_indifferent_hash = false }
+
+    it do
+      expect(JSONAPI::RSpec.as_indifferent_hash(doc)).to eq(
+        JSON.parse(JSON.generate(doc))
+      )
+    end
+  end
+end