Allow observing multiple apps in one Test.setup block

Author: ahx

lib/openapi_first/test.rb

@@ -40,7 +40,7 @@ def self.setup
       yield configuration
 
       configuration.registry.each { |name, oad| register(oad, as: name) }
-      configuration.apps.each { |name, app| observe(app, api: name) }
+      configuration.apps.each { |name, apps| apps.each { |app| observe(app, api: name) } }
       Coverage.start(skip_response: configuration.skip_response_coverage, skip_route: configuration.skip_coverage)
 
       if definitions.empty?

lib/openapi_first/test/configuration.rb

@@ -27,7 +27,7 @@ def register(oad, as: :default)
 
       # Observe a rack app
       def observe(app, api: :default)
-        @apps[api] = app
+        (@apps[api] ||= []) << app
       end
 
       attr_accessor :coverage_formatter_options, :coverage_formatter, :response_raise_error,

spec/test_spec.rb

@@ -125,6 +125,24 @@ def call(_env)
       app.new.call({})
     end
 
+    it 'observes multiple apps' do
+      other_app = Class.new do
+        def call(_env)
+          Rack::Response.new.finish
+        end
+      end
+
+      described_class.setup do |test|
+        test.register(definition, as: :some)
+        test.observe(app, api: :some)
+        test.observe(other_app, api: :some)
+      end
+
+      expect(definition).to receive(:validate_request).twice
+      app.new.call({})
+      other_app.new.call({})
+    end
+
     it 'sets up minimum_coverage' do
       described_class.setup do |test|
         test.register('./examples/openapi.yaml')