Add contacts controller spec.

spec/controllers/contacts_controller_spec.rb

@@ -0,0 +1,31 @@
+require 'spec_helper'
+
+describe ContactsController do
+  describe "GET new" do
+    it "renders the contact form" do
+      get :new
+      expect(response).to render_template(:new)
+    end
+  end
+
+  let(:contact_params) do
+    { name: "Dan Barber",
+      email: "danbee@gmail.com",
+      message: "This is a message." }
+  end
+
+  describe "POST create" do
+    it "saves a new contact" do
+      Contact.any_instance.should_receive(:save).once.and_return(true)
+      post :create, contact: contact_params
+      expect(flash[:notice]).to eql(I18n.t("contact.thanks"))
+      expect(response).to redirect_to(:new_contact)
+    end
+
+    it "re-renders the form if params are missing" do
+      post :create, contact: {}
+      expect(flash[:alert]).to eql(I18n.t("contact.invalid"))
+      expect(response).to render_template(:new)
+    end
+  end
+end