add factory_bot_rails

Gemfile

@@ -28,6 +28,8 @@ gem "bootsnap", require: false
 
 group :development, :test do
   gem "rspec-rails", "~> 5.1"
+  gem "factory_bot_rails", "~> 6.2"
+
   gem "debug", platforms: %i[ mri mingw x64_mingw ]
 end
 

Gemfile.lock

@@ -81,6 +81,11 @@ GEM
     diff-lcs (1.5.0)
     digest (3.1.0)
     erubi (1.10.0)
+    factory_bot (6.2.1)
+      activesupport (>= 5.0.0)
+    factory_bot_rails (6.2.0)
+      factory_bot (~> 6.2.0)
+      railties (>= 5.0.0)
     globalid (1.0.0)
       activesupport (>= 5.0)
     i18n (1.12.0)
@@ -210,6 +215,7 @@ DEPENDENCIES
   annotate (~> 3.2)
   bootsnap
   debug
+  factory_bot_rails (~> 6.2)
   importmap-rails
   jbuilder
   pg (~> 1.1)