Adding specs

nifty-blog/spec/controllers/posts_controller_spec.rb

@@ -0,0 +1,171 @@
+require 'spec_helper'
+
+describe PostsController do
+
+  # This should return the minimal set of attributes required to create a valid
+  # Post. As you add validations to Post, be sure to
+  # update the return value of this method accordingly.
+  def valid_attributes
+    FactoryGirl.attributes_for(:post)
+  end
+
+  # This should return the minimal set of values that should be in the session
+  # in order to pass any filters (e.g. authentication) defined in
+  # PostsController. Be sure to keep this updated too.
+  def valid_session
+    {}
+  end
+
+  describe "GET index" do
+    it "assigns all posts as @posts" do
+      post = Post.create! valid_attributes
+      get :index, {}, valid_session
+      assigns(:posts).should eq([post])
+    end
+  end
+
+  describe "GET show" do
+    describe "with valid params" do
+      it "assigns the requested post as @post" do
+        post = Post.create! valid_attributes
+        get :show, {:id => post.to_param}, valid_session
+        assigns(:post).should eq(post)
+      end
+    end
+    describe "with invalid params" do
+      it "redirects to the posts list" do
+        get :show, {:id => 0}, valid_session
+        response.should redirect_to(posts_url)
+      end
+    end
+  end
+
+  describe "GET new" do
+    it "assigns a new post as @post" do
+      get :new, {}, valid_session
+      assigns(:post).should be_a_new(Post)
+    end
+  end
+
+  describe "GET edit" do
+    describe "with valid params" do
+     it "assigns the requested post as @post" do
+        post = Post.create! valid_attributes
+        get :edit, {:id => post.to_param}, valid_session
+        assigns(:post).should eq(post)
+      end
+    end
+    describe "with invalid params" do
+      it "redirects to the posts list" do
+        get :edit, {:id => 0}, valid_session
+        response.should redirect_to(posts_url)
+      end
+    end
+  end
+
+  describe "POST create" do
+    describe "with valid params" do
+      it "creates a new Post" do
+        expect {
+          post :create, {:post => valid_attributes}, valid_session
+        }.to change(Post, :count).by(1)
+      end
+
+      it "assigns a newly created post as @post" do
+        post :create, {:post => valid_attributes}, valid_session
+        assigns(:post).should be_a(Post)
+        assigns(:post).should be_persisted
+      end
+
+      it "redirects to the created post" do
+        post :create, {:post => valid_attributes}, valid_session
+        response.should redirect_to(Post.last)
+      end
+    end
+
+    describe "with invalid params" do
+      it "assigns a newly created but unsaved post as @post" do
+        # Trigger the behavior that occurs when invalid params are submitted
+        Post.any_instance.stub(:save).and_return(false)
+        post :create, {:post => {}}, valid_session
+        assigns(:post).should be_a_new(Post)
+      end
+
+      it "re-renders the 'new' template" do
+        # Trigger the behavior that occurs when invalid params are submitted
+        Post.any_instance.stub(:save).and_return(false)
+        post :create, {:post => {}}, valid_session
+        response.should render_template("new")
+      end
+    end
+  end
+
+  describe "PUT update" do
+    describe "with valid params" do
+      it "updates the requested post" do
+        post = Post.create! valid_attributes
+        # Assuming there are no other posts in the database, this
+        # specifies that the Post created on the previous line
+        # receives the :update_attributes message with whatever params are
+        # submitted in the request.
+        Post.any_instance.should_receive(:update_attributes).with({'these' => 'params'})
+        put :update, {:id => post.to_param, :post => {'these' => 'params'}}, valid_session
+      end
+
+      it "assigns the requested post as @post" do
+        post = Post.create! valid_attributes
+        put :update, {:id => post.to_param, :post => valid_attributes}, valid_session
+        assigns(:post).should eq(post)
+      end
+
+      it "redirects to the post" do
+        post = Post.create! valid_attributes
+        put :update, {:id => post.to_param, :post => valid_attributes}, valid_session
+        response.should redirect_to(post)
+      end
+    end
+
+    describe "with invalid params" do
+      it "assigns the post as @post" do
+        post = Post.create! valid_attributes
+        # Trigger the behavior that occurs when invalid params are submitted
+        Post.any_instance.stub(:save).and_return(false)
+        put :update, {:id => post.to_param, :post => {}}, valid_session
+        assigns(:post).should eq(post)
+      end
+
+      it "re-renders the 'edit' template" do
+        post = Post.create! valid_attributes
+        # Trigger the behavior that occurs when invalid params are submitted
+        Post.any_instance.stub(:save).and_return(false)
+        put :update, {:id => post.to_param, :post => {}}, valid_session
+        response.should render_template("edit")
+      end
+    end
+  end
+
+  describe "DELETE destroy" do
+    describe "with valid params" do
+      it "destroys the requested post" do
+        post = Post.create! valid_attributes
+        expect {
+          delete :destroy, {:id => post.to_param}, valid_session
+        }.to change(Post, :count).by(-1)
+      end
+
+      it "redirects to the posts list" do
+        post = Post.create! valid_attributes
+        delete :destroy, {:id => post.to_param}, valid_session
+        response.should redirect_to(posts_url)
+      end
+    end
+
+    describe "with invalid params" do
+      it "redirects to the posts list" do
+        delete :destroy, {:id => 0}, valid_session
+        response.should redirect_to(posts_url)
+      end
+    end
+  end
+
+end

nifty-blog/spec/factories.rb

@@ -0,0 +1,7 @@
+FactoryGirl.define do
+  factory :post do
+    title "MyTitle"
+    body "MyBody"
+  end
+end
+

nifty-blog/spec/models/post_spec.rb

@@ -0,0 +1,6 @@
+require 'spec_helper'
+
+describe Post do
+  it { should validate_presence_of(:title) }
+  it { should validate_presence_of(:body) }
+end