Rakefile in administrate-materialize-theme-0.2.2 vs Rakefile in administrate-materialize-theme-0.2.4

@@ -1,15 +1,30 @@
 # frozen_string_literal: true
+
+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