include html test session method #106

Author: ajjahn

lib/react/test/session.rb

@@ -2,7 +2,7 @@ module React
   module Test
     class Session
       DSL_METHODS = %i[mount instance native element update_params
-        force_update!].freeze
+        force_update! html].freeze
 
       def mount(component_klass, params = {})
         @element = React.create_element(component_klass, params)
@@ -29,6 +29,10 @@ def update_params(params)
       def force_update!
         instance.force_update!
       end
+
+      def html
+        React.render_to_static_markup(element)
+      end
     end
   end
 end

spec/react/test/session_spec.rb

@@ -56,6 +56,13 @@ def render
       end
     end
 
+    describe '#html' do
+      it 'returns the component rendered to static html' do
+        subject.mount(Greeter, message: 'world')
+        expect(subject.html).to eq('<span>Hello world</span>')
+      end
+    end
+
     describe '#update_params' do
       it 'sends new params to the component' do
         instance = subject.mount(Greeter, message: 'world')