require 'spec_helper'

describe BookInstance do
  before(:each) do
    @book = Book.create!(name: 'test', isbn: '1787563353424', image: 'http://img3.douban.com/mpic/s13657833.jpg')
    @user = User.create! name: 'Tony', email: 'tony@gmail.com', password: 'passworD1'
    @instance = BookInstance.create!(book_id: @book.id, user_id: @user.id)
  end

  it :borrowed? do
    @instance.should_not == nil
    @instance.borrowed?.should == false
  end

  it 'ensure when someone borrowed this book,borrowed? should return true' do
    @user.borrow @instance
    @instance.borrowed?.should == true
  end

  it 'ensure change book instance to private' do
    @instance.be_private
    instance = BookInstance.find_by_id @instance.id
    instance.public.should == false
  end

  it 'should return book with sort_id' do
    sortable_book = @instance.sortable_book
    sortable_book.sort_id.should_not be_nil
  end

end