box-o-sand/rails/map-mash/spec/controllers/maps_controller_spec.rb

require 'spec_helper'

describe MapsController do

  def mock_map(stubs={})
    @mock_map ||= mock_model(Map, stubs)
  end

  describe "GET index" do
    it "assigns all maps as @maps" do
      Map.stub(:find).with(:all).and_return([mock_map])
      get :index
      assigns[:maps].should == [mock_map]
    end
  end

  describe "GET show" do
  end

  describe "GET new" do
    it "assigns a new map as @map" do
      Map.stub(:new).and_return(mock_map)
      get :new
      assigns[:map].should equal(mock_map)
    end
  end

  describe "GET edit" do
    it "assigns the requested map as @map" do
      Map.stub(:find).with("37").and_return(mock_map)
      get :edit, :id => "37"
      assigns[:map].should equal(mock_map)
    end
  end

  describe "POST create" do

    describe "with valid params" do
      it "assigns a newly created map as @map" do
        Map.stub(:new).with({'these' => 'params'}).and_return(mock_map(:save => true))
        post :create, :map => {:these => 'params'}
        assigns[:map].should equal(mock_map)
      end

      it "redirects to the created map" do
        Map.stub(:new).and_return(mock_map(:save => true))
        post :create, :map => {}
        response.should redirect_to(map_url(mock_map))
      end
    end

    describe "with invalid params" do
      it "assigns a newly created but unsaved map as @map" do
        Map.stub(:new).with({'these' => 'params'}).and_return(mock_map(:save => false))
        post :create, :map => {:these => 'params'}
        assigns[:map].should equal(mock_map)
      end

      it "re-renders the 'new' template" do
        Map.stub(:new).and_return(mock_map(:save => false))
        post :create, :map => {}
        response.should render_template('new')
      end
    end

  end

  describe "PUT update" do

    describe "with valid params" do
      it "updates the requested map" do
        Map.should_receive(:find).with("37").and_return(mock_map)
        mock_map.should_receive(:update_attributes).with({'these' => 'params'})
        put :update, :id => "37", :map => {:these => 'params'}
      end

      it "assigns the requested map as @map" do
        Map.stub(:find).and_return(mock_map(:update_attributes => true))
        put :update, :id => "1"
        assigns[:map].should equal(mock_map)
      end

      it "redirects to the map" do
        Map.stub(:find).and_return(mock_map(:update_attributes => true))
        put :update, :id => "1"
        response.should redirect_to(map_url(mock_map))
      end
    end

    describe "with invalid params" do
      it "updates the requested map" do
        Map.should_receive(:find).with("37").and_return(mock_map)
        mock_map.should_receive(:update_attributes).with({'these' => 'params'})
        put :update, :id => "37", :map => {:these => 'params'}
      end

      it "assigns the map as @map" do
        Map.stub(:find).and_return(mock_map(:update_attributes => false))
        put :update, :id => "1"
        assigns[:map].should equal(mock_map)
      end

      it "re-renders the 'edit' template" do
        Map.stub(:find).and_return(mock_map(:update_attributes => false))
        put :update, :id => "1"
        response.should render_template('edit')
      end
    end

  end

  describe "DELETE destroy" do
    it "destroys the requested map" do
      Map.should_receive(:find).with("37").and_return(mock_map)
      mock_map.should_receive(:destroy)
      delete :destroy, :id => "37"
    end

    it "redirects to the maps list" do
      Map.stub(:find).and_return(mock_map(:destroy => true))
      delete :destroy, :id => "1"
      response.should redirect_to(maps_url)
    end
  end

end