Merge branch 'example-test-suite'

Author: ahx

spec/examples_spec.rb

@@ -0,0 +1,82 @@
+# frozen_string_literal: true
+
+require 'rack/test'
+require_relative 'spec_helper'
+
+RSpec.describe 'request/response validation examples' do
+  include Rack::Test::Methods
+
+  Dir.glob(File.join(__dir__, '/test_cases/*.yaml')).each do |filepath|
+    describe filepath do
+      YAML.load_file(filepath).each do |example|
+        context example['description'] do
+          let(:oad) { example['oad'] }
+          let(:definition) { OpenapiFirst.parse(oad, filepath:) }
+
+          let(:app) do
+            lambda do |_env|
+              body = response['body']
+              body = JSON.generate(response['body']) unless response['body'].is_a?(String)
+              Rack::Response[
+                response['status'] || 200,
+                { 'Content-Type' => response['content_type'] || 'application/json' },
+                [body]
+              ].finish
+            end
+          end
+
+          let(:test_path) do
+            oad['paths'].keys.first
+          end
+
+          let(:test_method) do
+            oad['paths'][test_path].keys.first.upcase
+          end
+
+          if example['valid_response']
+            context 'with valid response' do
+              let(:response) { example['valid_response'] }
+
+              it 'passes validation' do
+                send(test_method.downcase, test_path)
+
+                request = Rack::Request.new(last_request.env)
+                body = last_response.body.is_a?(String) ? last_response.body : last_response.body.join
+                response = Rack::Response.new(
+                  body,
+                  last_response.status,
+                  last_response.headers
+                )
+
+                validated = definition.validate_response(request, response)
+                expect(validated).to be_valid
+              end
+            end
+          end
+
+          if example['invalid_response']
+            context 'with invalid response' do
+              let(:response) { example['invalid_response'] }
+
+              it 'fails validation' do
+                send(test_method.downcase, test_path)
+
+                request = Rack::Request.new(last_request.env)
+                body = last_response.body.is_a?(String) ? last_response.body : last_response.body.join
+                response = Rack::Response.new(
+                  body,
+                  last_response.status,
+                  last_response.headers
+                )
+
+                validated = definition.validate_response(request, response)
+                expect(validated).not_to be_valid
+                expect(validated.error).not_to be_nil
+              end
+            end
+          end
+        end
+      end
+    end
+  end
+end