RSpecでRailsのテストをしてみるテスト。

$ ruby -v
ruby 1.9.2p290 (2011-07-09 revision 32553) [i686-linux]
$ rails -v
Rails 3.2.1

gem 'rspec-rails'

rails g rspec:install

rails g scaffold item name:string price:integer description:text on_sales:boolean
rake db:migrate

rake spec

describe Item do
  pending "add some examples to (or delete) #{__FILE__}"
end

describe 'What be tested' do
  it 'will should do' do
    any.status.should value
  end
end

describe '自動販売機' do
  it '（に）お金を入れると商品が出てくる' do
    出てきたもの = 自動販売機.お金を入れる(120円)
    出てきたもの.数.は 1個
  end
end

# This spec was generated by rspec-rails when you ran the scaffold generator.
# It demonstrates how one might use RSpec to specify the controller code that
# was generated by Rails when you ran the scaffold generator.
#
# It assumes that the implementation code is generated by the rails scaffold
# generator.  If you are using any extension libraries to generate different
# controller code, this generated spec may or may not pass.
#
# It only uses APIs available in rails and/or rspec-rails.  There are a number
# of tools you can use to make these specs even more expressive, but we're
# sticking to rails and rspec-rails APIs to keep things simple and stable.
#
# Compared to earlier versions of this generator, there is very limited use of
# stubs and message expectations in this spec.  Stubs are only used when there
# is no simpler way to get a handle on the object needed for the example.
# Message expectations are only used when there is no simpler way to specify
# that an instance is receiving a specific message.

describe ItemsController do

  ...

  describe "GET index" do
    it "assigns all items as @items" do
      item = Item.create! valid_attributes
      get :index, {}, valid_session
      assigns(:items).should eq([item])
    end
  end

  ...

    it 'assigns latest 10 items as @item' do
      attr = valid_attributes.clone
      1.step(15,1) do |i|
        attr[:name] = "Item#{i}"
        Item.create! attr
      end

      get :index, {}, valid_session
      assigns(:items).size.should eq(10)
      assigns(:items)[0].name.should eq('Item15')
    end

  describe "GET show" do
    it "assigns the requested item as @item" do
      item = Item.create! valid_attributes
      get :show, {:id => item.to_param}, valid_session
      assigns(:item).should eq(item)
    end
  end

  describe "GET new" do
    it "assigns a new item as @item" do
      get :new, {}, valid_session
      assigns(:item).should be_a_new(Item)
    end
  end

      assigns(:item).should eq(Item.new)

  describe "GET show" do
    it "assigns the requested item as @item" do
      item = Item.create! valid_attributes
      get :show, {:id => item.to_param}, valid_session
      assigns(:item).should eq(item)

      item2 = Item.new
      item2.id = item.id
      assigns(:item).should eq(item2)
    end
  end

  describe "POST create" do
    describe "with valid params" do
      it "creates a new Item" do
        expect {
          post :create, {:item => valid_attributes}, valid_session
        }.to change(Item, :count).by(1)
      end

      it "assigns a newly created item as @item" do
        post :create, {:item => valid_attributes}, valid_session
        assigns(:item).should be_a(Item)
        assigns(:item).should be_persisted
      end

      it "redirects to the created item" do
        post :create, {:item => valid_attributes}, valid_session
        response.should redirect_to(Item.last)
      end
    end

    describe "with invalid params" do
      it "assigns a newly created but unsaved item as @item" do
        # Trigger the behavior that occurs when invalid params are submitted
        Item.any_instance.stub(:save).and_return(false)
        post :create, {:item => {}}, valid_session
        assigns(:item).should be_a_new(Item)
      end

      it "re-renders the 'new' template" do
        # Trigger the behavior that occurs when invalid params are submitted
        Item.any_instance.stub(:save).and_return(false)
        post :create, {:item => {}}, valid_session
        response.should render_template("new")
      end
    end
  end

    describe "with valid params" do
      it "creates a new Item" do
        expect {
          post :create, {:item => valid_attributes}, valid_session
        }.to change(Item, :count).by(1)
      end

      it "creates a new Item" do
        Item.create! valid_attributes
        Item.create! valid_attributes
        expect {
          Item.create! valid_attributes
          post :create, {:item => valid_attributes}, valid_session
        }.to change(Item, :count).by(2)
      end

      it "assigns a newly created item as @item" do
        post :create, {:item => valid_attributes}, valid_session
        assigns(:item).should be_a(Item)
        assigns(:item).should be_persisted
      end

      it "redirects to the created item" do
        post :create, {:item => valid_attributes}, valid_session
        response.should redirect_to(Item.last)
      end

    describe "with invalid params" do

      it "assigns a newly created but unsaved item as @item" do
        # Trigger the behavior that occurs when invalid params are submitted
        Item.any_instance.stub(:save).and_return(false)
        post :create, {:item => {}}, valid_session
        assigns(:item).should be_a_new(Item)
      end

      it "re-renders the 'new' template" do
        # Trigger the behavior that occurs when invalid params are submitted
        Item.any_instance.stub(:save).and_return(false)
        post :create, {:item => {}}, valid_session
        response.should render_template("new")
      end

  describe "PUT update" do
    describe "with valid params" do
      it "updates the requested item" do
        item = Item.create! valid_attributes
        # Assuming there are no other items in the database, this
        # specifies that the Item created on the previous line
        # receives the :update_attributes message with whatever params are
        # submitted in the request.
        Item.any_instance.should_receive(:update_attributes).with({'these' => 'params'})
        put :update, {:id => item.to_param, :item => {'these' => 'params'}}, valid_session
      end

      it "assigns the requested item as @item" do
        item = Item.create! valid_attributes
        put :update, {:id => item.to_param, :item => valid_attributes}, valid_session
        assigns(:item).should eq(item)
      end

      it "redirects to the item" do
        item = Item.create! valid_attributes
        put :update, {:id => item.to_param, :item => valid_attributes}, valid_session
        response.should redirect_to(item)
      end
    end

    describe "with invalid params" do
      it "assigns the item as @item" do
        item = Item.create! valid_attributes
        # Trigger the behavior that occurs when invalid params are submitted
        Item.any_instance.stub(:save).and_return(false)
        put :update, {:id => item.to_param, :item => {}}, valid_session
        assigns(:item).should eq(item)
      end

      it "re-renders the 'edit' template" do
        item = Item.create! valid_attributes
        # Trigger the behavior that occurs when invalid params are submitted
        Item.any_instance.stub(:save).and_return(false)
        put :update, {:id => item.to_param, :item => {}}, valid_session
        response.should render_template("edit")
      end
    end
  end

# Assuming there are no other items in the database, this
# specifies that the Item created on the previous line
# receives the :update_attributes message with whatever params are
# submitted in the request.

      it "assigns the requested item as @item" do
        item = Item.create! valid_attributes
        put :update, {:id => item.to_param, :item => valid_attributes}, valid_session
        assigns(:item).should eq(item)
      end

describe "Items" do
  describe "GET /items" do
    it "works! (now write some real specs)" do
      # Run the generator again with the --webrat flag if you want to use webrat methods/matchers
      get items_path
      response.status.should be(200)
    end
  end
end

describe ItemsController do
  describe "routing" do

    it "routes to #index" do
      get("/items").should route_to("items#index")
    end

    it "routes to #new" do
      get("/items/new").should route_to("items#new")
    end

    it "routes to #show" do
      get("/items/1").should route_to("items#show", :id => "1")
    end

    it "routes to #edit" do
      get("/items/1/edit").should route_to("items#edit", :id => "1")
    end

    it "routes to #create" do
      post("/items").should route_to("items#create")
    end

    it "routes to #update" do
      put("/items/1").should route_to("items#update", :id => "1")
    end

    it "routes to #destroy" do
      delete("/items/1").should route_to("items#destroy", :id => "1")
    end

  end
end

describe "items/index" do
  before(:each) do
    assign(:items, [
      stub_model(Item,
        :name => "Name",
        :price => 1,
        :description => "MyText",
        :on_sales => false
      ),
      stub_model(Item,
        :name => "Name",
        :price => 1,
        :description => "MyText",
        :on_sales => false
      )
    ])
  end

  it "renders a list of items" do
    render
    # Run the generator again with the --webrat flag if you want to use webrat matchers
    assert_select "tr>td", :text => "Name".to_s, :count => 2
    # Run the generator again with the --webrat flag if you want to use webrat matchers
    assert_select "tr>td", :text => 1.to_s, :count => 2
    # Run the generator again with the --webrat flag if you want to use webrat matchers
    assert_select "tr>td", :text => "MyText".to_s, :count => 2
    # Run the generator again with the --webrat flag if you want to use webrat matchers
    assert_select "tr>td", :text => false.to_s, :count => 2
  end
end

it 'renders all labels with `hoge` class' do
  assert_select 'form#myform label' do
    assert_select '.hoge'
  end
end

assert_select "tr>td", :text => "Name".to_s, :count => 2

# Run the generator again with the --webrat flag if you want to use webrat matchers

describe "items/show" do
  before(:each) do
    @item = assign(:item, stub_model(Item,
      :name => "Name",
      :price => 1,
      :description => "MyText",
      :on_sales => false
    ))
  end

  it "renders attributes in <p>" do
    render
    # Run the generator again with the --webrat flag if you want to use webrat matchers
    rendered.should match(/Name/)
    # Run the generator again with the --webrat flag if you want to use webrat matchers
    rendered.should match(/1/)
    # Run the generator again with the --webrat flag if you want to use webrat matchers
    rendered.should match(/MyText/)
    # Run the generator again with the --webrat flag if you want to use webrat matchers
    rendered.should match(/false/)
  end
end

describe "items/edit" do
  before(:each) do
    @item = assign(:item, stub_model(Item,
      :name => "MyString",
      :price => 1,
      :description => "MyText",
      :on_sales => false
    ))
  end

  it "renders the edit item form" do
    render

    # Run the generator again with the --webrat flag if you want to use webrat matchers
    assert_select "form", :action => items_path(@item), :method => "post" do
      assert_select "input#item_name", :name => "item[name]"
      assert_select "input#item_price", :name => "item[price]"
      assert_select "textarea#item_description", :name => "item[description]"
      assert_select "input#item_on_sales", :name => "item[on_sales]"
    end
  end
end

assert_select "input#item_name", :name => "item[name]", :value => 'hoge'

assert_select "input#item_name", :name => "item[name]" do
  assert_select "[value=#{@item.name}]"
end

describe "items/new" do
  before(:each) do
    assign(:item, stub_model(Item,
      :name => "MyString",
      :price => 1,
      :description => "MyText",
      :on_sales => false
    ).as_new_record)
  end