Test with Rails 7.1 (#79)

* Rails 7.1: call `to_s` on `rendered` proxy

Probably stemming from `rendered` having been converted to a proxy object in rails/rails#49194

* CI with Rails 7.1

* Don't eager_load on CI

* Needs to be moved up further

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
       fail-fast: false
       matrix:
         rails-version:
-          - "7.0"
+          - "7.1"
           - "6.1"
           - "main"
         ruby-version:

test/capybara_extensions/assertions.rb

@@ -24,6 +24,6 @@ def assert_no_#{selector}(...)
   include CapybaraExtensions::Assertions
 
   def page
-    @page ||= Capybara.string(rendered)
+    @page ||= Capybara.string(rendered.to_s)
   end
 end

test/test_helper.rb

@@ -3,7 +3,10 @@
 
 require_relative "../test/dummy/config/environment"
 ActiveRecord::Migrator.migrations_paths = [File.expand_path("../test/dummy/db/migrate", __dir__)]
+# Don't eager load, since that expects Action Mailbox tables to be present in database.
+Rails.configuration.eager_load = false
 require "rails/test_help"
+
 require "capybara_extensions"
 require "template_helpers"