Remove deprecated stuff (#5803)

All of these have been deprecated for years, if we're releasing a new
major version, let's take the opportunity to do some cleanup.

* Remove deprecated `:bypass` option from `sign_in` helper,
  use `bypass_sign_in` instead.
* Remove deprecated `devise_error_messages!` helper,
  use `render "devise/shared/error_messages", resource: resource` instead.
* Remove deprecated `scope` second argument from `sign_in(resource, :admin)`
  controller test helper, use `sign_in(resource, scope: :admin)` instead.
* Remove deprecated `Devise::TestHelpers`,
  use `Devise::Test::ControllerHelpers` instead.

Closes #5739

CHANGELOG.md

@@ -3,6 +3,10 @@
 * breaking changes
   * Drop support to Ruby < 2.7
   * Drop support to Rails < 7.0
+  * Remove deprecated `:bypass` option from `sign_in` helper, use `bypass_sign_in` instead. [#5803](https://github.com/heartcombo/devise/pull/5803)
+  * Remove deprecated `devise_error_messages!` helper, use `render "devise/shared/error_messages", resource: resource` instead. [#5803](https://github.com/heartcombo/devise/pull/5803)
+  * Remove deprecated `scope` second argument from `sign_in(resource, :admin)` controller test helper, use `sign_in(resource, scope: :admin)` instead. [#5803](https://github.com/heartcombo/devise/pull/5803)
+  * Remove deprecated `Devise::TestHelpers`, use `Devise::Test::ControllerHelpers` instead. [#5803](https://github.com/heartcombo/devise/pull/5803)
   * Remove `SecretKeyFinder` and use `app.secret_key_base` as the default secret key for `Devise.secret_key` if a custom `Devise.secret_key` is not provided.
 
     This is potentially a breaking change because Devise previously used the following order to find a secret key:
@@ -12,8 +16,7 @@
     ```
 
     Now, it always uses `application.secret_key_base`. Make sure you're using the same secret key after the upgrade; otherwise, previously generated tokens for `recoverable`, `lockable`, and `confirmable` will be invalid.
-    https://github.com/heartcombo/devise/pull/5645
-
+    [#5645](https://github.com/heartcombo/devise/pull/5645)
 * enhancements
   * Removed deprecations warning output for `Devise::Models::Authenticatable::BLACKLIST_FOR_SERIALIZATION` (@soartec-lab)
   * Add Rails 8 support.

app/helpers/devise_helper.rb

@@ -1,30 +1,5 @@
 # frozen_string_literal: true
 
+# Keeping the helper around for backward compatibility.
 module DeviseHelper
-  # Retain this method for backwards compatibility, deprecated in favor of modifying the
-  # devise/shared/error_messages partial.
-  def devise_error_messages!
-    Devise.deprecator.warn <<-DEPRECATION.strip_heredoc
-      [Devise] `DeviseHelper#devise_error_messages!` is deprecated and will be
-      removed in the next major version.
-
-      Devise now uses a partial under "devise/shared/error_messages" to display
-      error messages by default, and make them easier to customize. Update your
-      views changing calls from:
-
-          <%= devise_error_messages! %>
-
-      to:
-
-          <%= render "devise/shared/error_messages", resource: resource %>
-
-      To start customizing how errors are displayed, you can copy the partial
-      from devise to your `app/views` folder. Alternatively, you can run
-      `rails g devise:views` which will copy all of them again to your app.
-    DEPRECATION
-
-    return "" if resource.errors.empty?
-
-    render "devise/shared/error_messages", resource: resource
-  end
 end

lib/devise.rb

@@ -16,7 +16,6 @@ module Devise
   autoload :Orm,                'devise/orm'
   autoload :ParameterFilter,    'devise/parameter_filter'
   autoload :ParameterSanitizer, 'devise/parameter_sanitizer'
-  autoload :TestHelpers,        'devise/test_helpers'
   autoload :TimeInflector,      'devise/time_inflector'
   autoload :TokenGenerator,     'devise/token_generator'
 

lib/devise/controllers/sign_in_out.rb

@@ -37,16 +37,7 @@ module Devise
 
         expire_data_after_sign_in!
 
-        if options[:bypass]
-          Devise.deprecator.warn(<<-DEPRECATION.strip_heredoc, caller)
-          [Devise] bypass option is deprecated and it will be removed in future version of Devise.
-          Please use bypass_sign_in method instead.
-          Example:
-
-            bypass_sign_in(user)
-          DEPRECATION
-          warden.session_serializer.store(resource, scope)
-        elsif warden.user(scope) == resource && !options.delete(:force)
+        if warden.user(scope) == resource && !options.delete(:force)
           # Do nothing. User already signed in and we are not forcing it.
           true
         else

lib/devise/test/controller_helpers.rb

@@ -64,17 +64,7 @@ module Devise
       #
       # sign_in users(:alice)
       # sign_in users(:alice), scope: :admin
-      def sign_in(resource, deprecated = nil, scope: nil)
-        if deprecated.present?
-          scope = resource
-          resource = deprecated
-
-          Devise.deprecator.warn <<-DEPRECATION.strip_heredoc
-            [Devise] sign_in(:#{scope}, resource) on controller tests is deprecated and will be removed from Devise.
-            Please use sign_in(resource, scope: :#{scope}) instead.
-          DEPRECATION
-        end
-
+      def sign_in(resource, scope: nil)
         scope ||= Devise::Mapping.find_scope!(resource)
 
         warden.instance_variable_get(:@users).delete(scope)

lib/devise/test_helpers.rb

@@ -1,15 +0,0 @@
-# frozen_string_literal: true
-
-module Devise
-  module TestHelpers
-    def self.included(base)
-      base.class_eval do
-        Devise.deprecator.warn <<-DEPRECATION.strip_heredoc
-          [Devise] including `Devise::TestHelpers` is deprecated and will be removed from Devise.
-          For controller tests, please include `Devise::Test::ControllerHelpers` instead.
-        DEPRECATION
-        include Devise::Test::ControllerHelpers
-      end
-    end
-  end
-end

test/controllers/custom_strategy_test.rb

@@ -3,7 +3,7 @@
 require 'test_helper'
 require 'ostruct'
 require 'warden/strategies/base'
-require 'devise/test_helpers'
+require 'devise/test/controller_helpers'
 
 class CustomStrategyController < ActionController::Base
   def new