categories_controller_spec.rb

require File.dirname(__FILE__) + '/../spec_helper'

describe CategoriesController, "GET #index" do
  subject { controller }

  before(:each) { get :index }
  
  it { should assign_to(:categories) }
  it { should respond_with(:success) }
end

describe CategoriesController, "GET #show" do
  subject { controller }

  before(:each) do
    Category.should_receive(:find).with('1').and_return(mock_model(Category))
    get :show, :id => '1'
  end

  it { should assign_to(:category) }
  it { should respond_with(:success) }
end

describe CategoriesController, "GET #new" do
  subject { controller }

  before(:each) do
    Category.should_receive(:new).and_return(mock_model(Category))    
    get :new
  end
  
  it { should assign_to(:category) }
  it { should respond_with(:success) }
end

describe CategoriesController, "GET #edit" do
  subject { controller }

  before(:each) do
    Category.should_receive(:find).with('1').and_return(mock_model(Category))    
    get :edit, :id => '1'
  end
  
  it { should assign_to(:category) }
  it { should respond_with(:success) }
end

describe CategoriesController, "POST #create" do
  before(:each) do
    @category = mock_model(Category, :save => true)
    Category.should_receive(:new).with({}).and_return(@category)    
  end

  def do_post
    post :create, :category => {}
  end
  
  describe CategoriesController, "(successful creation)" do
    subject { controller }

    before(:each) do
      @category.should_receive(:save).and_return(true)
      do_post
    end
    
    it { should assign_to(:category) } 
    it { should set_the_flash }
    it { response.should redirect_to category_path(@category) }
  end

  describe CategoriesController, "(unsuccessful creation)" do
    subject { controller }

    before(:each) do
      @category.should_receive(:save).and_return(false)
      do_post
    end
    
    it { should_not set_the_flash }
    it { response.should render_template('new') }
  end
end

describe CategoriesController, "PUT #update" do
  before(:each) do
    @category = mock_model(Category, :update_attributes => true)
    Category.should_receive(:find).with('1').and_return(@category)    
  end

  def do_put
    put :update, :id => '1', :category => {}
  end
  
  describe CategoriesController, "(successful creation)" do
    subject { controller }

    before(:each) do
      @category.should_receive(:update_attributes).and_return(true)
      do_put
    end
    
    it { should assign_to(:category) } 
    it { should set_the_flash }
    it { response.should redirect_to category_path(@category) }
  end

  describe CategoriesController, "(unsuccessful creation)" do
    subject { controller }

    before(:each) do
      @category.should_receive(:update_attributes).and_return(false)
      do_put
    end
    
    it { should_not set_the_flash }
    it { response.should render_template('edit') }
  end
end

describe CategoriesController, "DELETE #destroy" do
  subject { controller }

  before(:each) do
    @category = mock_model(Category)
    Category.should_receive(:find).with('1').and_return(@category)    
    @category.should_receive(:destroy)
    delete :destroy, :id => '1'
  end
  
  it { should assign_to(:category) }
  it { should respond_with(:redirect) }
  it { response.should redirect_to(categories_path)}
end