# frozen_string_literal: true

#
# Copyright (C) 2014 - present Instructure, Inc.
#
# This file is part of Canvas.
#
# Canvas is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the Free
# Software Foundation, version 3 of the License.
#
# Canvas 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 Affero General Public License for more
# details.
#
# You should have received a copy of the GNU Affero General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#

require "spec_helper"

describe AdheresToPolicy::Policy, "set_policy" do
  it "takes a block" do
    expect do
      Class.new do
        extend AdheresToPolicy::ClassMethods

        set_policy { 1 + 1 }
      end
    end.not_to raise_error
  end

  it "allows multiple calls" do
    expect do
      Class.new do
        extend AdheresToPolicy::ClassMethods

        3.times do
          set_policy { 1 + 1 }
        end
      end
    end.not_to raise_error
  end

  context "available_rights" do
    it "returns all available rights" do
      example_class = Class.new do
        extend AdheresToPolicy::ClassMethods

        set_policy do
          given { |_| true }
          can :read, nil

          given { |_| true }
          can :write, :read
        end
      end

      expect(example_class.policy.available_rights.to_a.sort).to eq [:read, :write].sort
    end
  end

  describe "#add_rights" do
    it "adds rights to parents" do
      right = double
      condition = double
      parent = AdheresToPolicy::Policy.new(nil, nil)
      policy = AdheresToPolicy::Policy.new(parent, nil)

      policy.add_rights([right], condition)

      expect(policy.available_rights).to eq(Set.new([right]))
      expect(parent.available_rights).to eq(Set.new([right]))
    end
  end
end
