Rakefile in activeadmin_dynamic_fields-0.5.0 vs Rakefile in activeadmin_dynamic_fields-0.5.2

@@ -1,3 +1,16 @@
 # frozen_string_literal: true
 
-require "bundler/gem_tasks"
+require 'bundler/gem_tasks'
+
+begin
+  require 'rspec/core/rake_task'
+
+  RSpec::Core::RakeTask.new(:spec) do |t|
+    # t.ruby_opts = %w[-w]
+    t.rspec_opts = ['--color', '--format documentation']
+  end
+
+  task default: :spec
+rescue LoadError
+  puts '! LoadError: no RSpec available'
+end