Rakefile in slack_notifier-1.0.2 vs Rakefile in slack_notifier-1.0.3

@@ -1,2 +1,17 @@
 require "bundler/gem_tasks"
-task :default => :spec
+
+task default: :spec
+
+begin
+  require 'rspec/core/rake_task'
+
+  RSpec::Core::RakeTask.new(:spec, :tag) do |t, task_args|
+    t.rspec_opts = ['--format documentation']
+    t.rspec_opts << '--color'
+    t.rspec_opts << '--order rand:42'
+    t.rspec_opts << "--tag #{task_args[:tag]}" if task_args[:tag]
+  end
+rescue LoadError
+  # no rspec available
+  raise 'Yo, no RSpec?'
+end