Failure/Error: click_link "Mark Complete" ActionView::MissingTemplate:

require 'spec_helper'

describe "Completing todo items" do
  let!(:todo_list) { TodoList.create(title: "Grocery list", description: "Groceries") }
  let!(:todo_item) { todo_list.todo_items.create(content: "Milk") }  

  it "is successful when marking a single item complete" do
    expect(todo_item.completed_at).to be_nil
    visit_todo_list todo_list
    within dom_id_for(todo_item) do
      click_link "Mark Complete"
    end
    todo_item.reload
    expect(todo_item.completed_at).to_not be_nil
  end

  context "with completed items" do
    let!(:completed_todo_item) { todo_list.todo_items.create(content: "Eggs", completed_at: 5.minutes.ago) }

    it "shows completed items as complete" do
      visit_todo_list todo_list
      within dom_id_for(completed_todo_item) do
        expect(page).to have_content(completed_todo_item.completed_at)
      end
    end

    it "does not give the option to mark complete" do
      visit_todo_list todo_list
      within dom_id_for(completed_todo_item) do
        expect(page).to_not have_content("Mark Complete")
      end
    end
  end
end