Expands README examples for controller specs [ci skip]

README.md

@@ -64,7 +64,18 @@ require "spec_helper"
 
 describe PostsController do
   describe "GET #index" do
-    it "loads all of the posts" do
+    it "responds successfully with an HTTP 200 status code" do
+      get :index
+      expect(response).to be_success
+      expect(response.code).to eq(200)
+    end
+
+    it "renders the index template" do
+      get :index
+      expect(response).to render_template("index")
+    end
+
+    it "loads all of the posts into @posts" do
       post1, post2 = Post.create!, Post.create!
       get :index