Add Rails 8 authentication generator

lib/generators/rspec/authentication/authentication_generator.rb

@@ -0,0 +1,33 @@
+require 'generators/rspec'
+
+module Rspec
+  module Generators
+    # @private
+    class AuthenticationGenerator < Base
+      attr_accessor :attributes
+
+      def self.source_root
+        File.expand_path(File.join(File.dirname(__FILE__), '..', 'model', 'templates'))
+      end
+
+      def initialize(args, *options)
+        args.replace(['User'])
+        attributes = %w(email password_digest)
+        super
+      end
+
+      def create_model_spec
+        template_file = target_path('models', 'user_spec.rb')
+        template 'model_spec.rb', template_file
+      end
+
+      hook_for :fixture_replacement
+
+      def create_fixture_file
+        return if options[:fixture_replacement]
+
+        template 'fixtures.yml', target_path('fixtures', 'users.yml')
+      end
+    end
+  end
+end

spec/generators/rspec/authentication/authentication_generator_spec.rb

@@ -0,0 +1,28 @@
+# Generators are not automatically loaded by Rails
+require 'generators/rspec/authentication/authentication_generator'
+require 'support/generators'
+
+RSpec.describe Rspec::Generators::AuthenticationGenerator, type: :generator do
+  setup_default_destination
+
+  it 'runs both the model and fixture tasks' do
+    gen = generator
+    expect(gen).to receive :create_model_spec
+    expect(gen).to receive :create_fixture_file
+    gen.invoke_all
+  end
+
+  describe 'the generated files' do
+    describe 'without fixtures' do
+      before do
+        run_generator
+      end
+
+      describe 'the fixtures' do
+        it "will skip the file" do
+          expect(File.exist?(file('spec/fixtures/posts.yml'))).to be false
+        end
+      end
+    end
+  end
+end