remove deprecation warning for fixtures

Author: JonRowe

lib/rspec/rails/fixture_support.rb

@@ -22,7 +22,11 @@ module FixtureSupport
           # /TODO
 
           self.fixture_path = RSpec.configuration.fixture_path
-          self.use_transactional_fixtures = RSpec.configuration.use_transactional_fixtures
+          if ::Rails::VERSION::STRING > '5'
+            self.use_transactional_tests = RSpec.configuration.use_transactional_fixtures
+          else
+            self.use_transactional_fixtures = RSpec.configuration.use_transactional_fixtures
+          end
           self.use_instantiated_fixtures  = RSpec.configuration.use_instantiated_fixtures
           fixtures RSpec.configuration.global_fixtures if RSpec.configuration.global_fixtures
         end

spec/rspec/rails/configuration_spec.rb

@@ -197,7 +197,7 @@ def in_inferring_type_from_location_environment
   it "metadata `:type => :request` sets up request example groups" do
     a_rails_app = double("Rails application")
     the_rails_module = double("Rails module", :application => a_rails_app)
-    stub_const "Rails", the_rails_module
+    stub_const "Rails", the_rails_module, :transfer_nested_constants => true
 
     group = RSpec.describe("Some Request API", :type => :request)
 
@@ -228,7 +228,7 @@ def in_inferring_type_from_location_environment
   it "metadata `:type => :feature` sets up feature example groups" do
     a_rails_app = double("Rails application")
     the_rails_module = double("Rails module", :application => a_rails_app)
-    stub_const "Rails", the_rails_module
+    stub_const "Rails", the_rails_module, :transfer_nested_constants => true
 
     group = RSpec.describe("Some feature description", :type => :feature)
     example = group.new