Viewing Todo Items: Part 2

• Test so the todo-list title is displayed on the page first (we use a before block, because we're going to add it in every single page):

require 'spec_helper'

describe "Viewing todo items" do 
	let!(:todo_list) {TodoList.create(title: "Grocery List", description: "Groceries")}
	

	before do
		visit "/todo_lists"
		within "#todo_list_#{todo_list.id}" do 
			click_link "List Items"
		end
	end	

	it "displays the title of the todo list" do
		within ("h1") do
			expect(page).to have_content(todo_list.title)
	end


	it "displays no items when a todo list is empty"
		expect(page).to have_content("TodoItems#index")
	end 
end

• We can pass in different formats to rspec.
• --format=documentation --> This will print the name of the test that's running as it goes through.

• We get the todo list id from the routes (rake routes). 

def index
  	@todo_list = TodoList.find(params[:todo_list_id])
  end

• The :todo_list_id goes inside of the controller (todo_items_controller.rb)
• @ symbol in front of a name makes it an instance variable: this means we'll have access to it in our view
• > index.html.erb We add that variable: <h1><%= @todo_list.title %></h1>

• Page.all cabybara method: This will find all the elements on the page with a given CSS selector. 

it "displays no items when a todo list is empty"
		expect(page.all("ul.todo_items li").size).to eq(0)
	end 

require 'spec_helper'

describe "Viewing todo items" do 
	let!(:todo_list) {TodoList.create(title: "Grocery List", description: "Groceries")}
	
	def visit_todo_list(list)
		visit "/todo_lists"
		within "#todo_list_#{todo_list.id}" do 
			click_link "List Items"
		end
	end	

	it "displays the title of the todo list" do
		visit_todo_list(todo_list) 
		within ("h1") do
			expect(page).to have_content(todo_list.title)
		end
	end

	it "displays no items when a todo list is empty"
		visit_todo_list(todo_list)
		expect(page.all("ul.todo_items li").size).to eq(0)
	end 

	it "displays item content when a todo list has items" do
		todo_list.todo_items.create(content: "Milk")
		todo_list.todo_items.create(content: "Eggs")

		visit todo_list(todo_list)
		
		expect(page.all("ul.todo_items li").size).to eq(2)

		within "ul.todo_list" do
			expect(page).to have_content("Milk")
			expect(page).to have_content("Eggs")
		end
	end	
end