Rails generate generator command create spec by default

Author: benoittgt

features/generator_specs/generator_specs.feature

@@ -2,21 +2,9 @@ Feature: Generator spec
 
     RSpec spec(s) can be generated when generating application components. For instance, `rails generate model` will also generate an RSpec spec file for the model but you can also write your own generator. See [customizing your workflow](https://guides.rubyonrails.org/generators.html#customizing-your-workflow)
 
-    Scenario: Use custom generator without '--generator-specs' arg
+    Scenario: Use custom generator
         When I run `bundle exec rails generate generator my_generator`
         Then the features should pass
-        Then the output should contain:
-          """
-                create  lib/generators/my_generator
-                create  lib/generators/my_generator/my_generator_generator.rb
-                create  lib/generators/my_generator/USAGE
-                create  lib/generators/my_generator/templates
-                invoke  rspec
-          """
-
-    Scenario: Use custom generator with '--generator-specs' arg
-        When I run `bundle exec rails generate generator my_generator --generator-specs`
-        Then the features should pass
         Then the output should contain:
           """
                 create  lib/generators/my_generator

lib/generators/rspec/generator/generator_generator.rb

@@ -4,7 +4,7 @@ module Rspec
   module Generators
     # @private
     class GeneratorGenerator < Base
-      class_option :generator_specs, type: :boolean, default: false,  desc: "Generate generator specs"
+      class_option :generator_specs, type: :boolean, default: true,  desc: "Generate generator specs"
 
       def generate_generator_spec
         return unless options[:generator_specs]

spec/generators/rspec/generator/generator_generator_spec.rb

@@ -6,30 +6,17 @@
 
   describe "generator specs" do
     subject(:generator_spec) { file("spec/generator/posts_generator_spec.rb") }
-    describe "are generated independently/can be generated" do
-      before do
-        run_generator %w(posts --generator-specs)
-      end
-      it "creates the spec file" do
-        expect(generator_spec).to exist
-      end
-      it "contains 'rails_helper in the spec file'" do
-        expect(generator_spec).to contain(/require 'rails_helper'/)
-      end
-      it "includes the generator type in the metadata" do
-        expect(generator_spec).to contain(/^RSpec.describe \"Posts\", #{type_metatag(:generator)}/)
-      end
+    before do
+      run_generator %w(posts)
     end
-
-    describe "are not generated/are skipped by default" do
-      before do
-        run_generator %w(posts)
-      end
-      describe "the spec" do
-        it "does not exist" do
-          expect(generator_spec).to_not exist
-        end
-      end
+    it "creates the spec file by default" do
+      expect(generator_spec).to exist
+    end
+    it "contains 'rails_helper in the spec file'" do
+      expect(generator_spec).to contain(/require 'rails_helper'/)
+    end
+    it "includes the generator type in the metadata" do
+      expect(generator_spec).to contain(/^RSpec.describe \"Posts\", #{type_metatag(:generator)}/)
     end
   end
 end