Implement middleware and version commands in the rage/cli.rb file.

lib/rage/cli.rb

@@ -2,6 +2,7 @@
 
 require "thor"
 require "rack"
+require "rage/version"
 
 module Rage
   class CLI < Thor
@@ -112,6 +113,20 @@ def console
       IRB.start
     end
 
+    desc "middleware", "List Rack middleware stack enabled for the application"
+    def middleware
+      environment
+
+      Rage.config.middleware.middlewares.each do |middleware|
+        say "use #{middleware.first.name}"
+      end
+    end
+
+    desc "version", "Return the current version of the framework"
+    def version
+      puts Rage::VERSION
+    end
+
     private
 
     def environment

spec/rage/cli_spec.rb

@@ -0,0 +1,38 @@
+require "rage/cli"
+
+RSpec.describe Rage::CLI do
+  subject(:rage_cli) { described_class.new }
+
+  describe "#middleware" do
+    before do
+      allow(rage_cli).to receive(:environment)
+      allow(Rage.config).to receive_message_chain(:middleware, :middlewares).and_return(middlewares)
+    end
+
+    context "when middleware stack is present" do
+      let(:middlewares) { [[Rage::FiberWrapper], [Rage::Reloader, [], nil]] }
+
+      it "lists the middleware stack" do
+        expect { rage_cli.middleware }.to output("use \Rage::FiberWrapper\nuse \Rage::Reloader\n").to_stdout
+      end
+    end
+
+    context "when middleware stack is empty" do
+      let(:middlewares) { [] }
+
+      it "does not list any middleware" do
+        expect { rage_cli.middleware }.to output("").to_stdout
+      end
+    end
+  end
+
+  describe "#version" do
+    before do
+      stub_const("Rage::VERSION", "1.0.0")
+    end
+
+    it "returns the current version of the framework" do
+      expect { rage_cli.version }.to output("1.0.0\n").to_stdout
+    end
+  end
+end