# Copyright (C) 2007 Joseph Method
# Copyright (C) 2011, 2015 Matijs van Zuijlen
#
# Alexandria is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of the
# License, or (at your option) any later version.
#
# Alexandria is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public
# License along with Alexandria; see the file COPYING.  If not,
# write to the Free Software Foundation, Inc., 51 Franklin Street,
# Fifth Floor, Boston, MA 02110-1301 USA.

require 'spec_helper'

describe Alexandria::Book do
  it 'should be a thing' do
    an_artist_of_the_floating_world
  end

  it 'should establish equality only with books with the same identity' do
    book = an_artist_of_the_floating_world
    same_book = an_artist_of_the_floating_world
    expect(same_book).to eq book
    different_book = an_artist_of_the_floating_world
    different_book.isbn = '9780571147999'
    expect(different_book).not_to eq book
  end

  describe '#rating' do
    let(:book) { an_artist_of_the_floating_world }
    it 'returns 0 by default' do
      expect(book.rating).to eq 0
    end
  end

  describe '#rating=' do
    let(:book) { an_artist_of_the_floating_world }
    it 'assigns rating' do
      book.rating = 5
      expect(book.rating).to eq 5
    end

    it 'does not allow higher rating than 5 to be assigned' do
      expect { book.rating = 6 }.to raise_error
    end

    it 'does not allow lower rating than 0 to be assigned' do
      expect { book.rating = -1 }.to raise_error
    end
  end
end