require "spec_helper"

describe Mongoid::Userstamp::User do
  subject(:book) { Book.new(name: "Crafting Rails Applications") }
  subject(:post) { Post.new(title: "Understanding Rails") }

  let(:user_1) { User.create!(name: "Charles Dikkens") }
  let(:user_2) { User.create!(name: "Edmund Wells") }
  let(:admin_1) { Admin.create!(name: "JK Rowling") }
  let(:admin_2) { Admin.create!(name: "Stephan Norway") }

  describe "::current and #current?" do
    before do
      Admin.current = nil
      User.current = nil
    end

    context "when current users are not set" do
      it { Admin.current.should be_nil }
      it { User.current.should be_nil }
      it { admin_1.current?.should be_falsey }
      it { admin_2.current?.should be_falsey }
      it { user_1.current?.should be_falsey }
      it { user_2.current?.should be_falsey }
    end

    context "when current User is set" do
      before { User.current = user_1 }
      it { User.current.should eq user_1 }
      it { Admin.current.should be_nil }
      it { admin_1.current?.should be_falsey }
      it { admin_2.current?.should be_falsey }
      it { user_1.current?.should be_truthy }
      it { user_2.current?.should be_falsey }
    end

    context "when current Admin is set" do
      before { Admin.current = admin_1 }
      it { User.current.should be_nil }
      it { Admin.current.should eq admin_1 }
      it { admin_1.current?.should be_truthy }
      it { admin_2.current?.should be_falsey }
      it { user_1.current?.should be_falsey }
      it { user_2.current?.should be_falsey }
    end
  end

  describe "::do_as" do
    it "should set the current user" do
      Admin.current = admin_1
      Admin.do_as admin_2 do
        Admin.current.should eq admin_2
      end
      Admin.current.should eq admin_1
    end

    it "should return the value of the block" do
      Admin.do_as admin_2 {
        "foo"
      }.should eq "foo"
    end

    it "should revert user in case of error" do
      Admin.current = admin_1
      begin
        Admin.do_as admin_2 do
          raise
        end
      rescue
      end
      Admin.current.should eq admin_1
    end
  end

  describe "::mongoid_userstamp_user" do
    before { User.instance_variable_set(:'@mongoid_userstamp_user', nil) }

    context "when options are not given" do
      subject { User.mongoid_userstamp_user }
      it { should be_a Mongoid::Userstamp::UserConfig }
      it { subject.reader.should eq :current_user }
    end

    context "when options are given" do
      subject { User.mongoid_userstamp_user(reader: :foo) }
      it { should be_a Mongoid::Userstamp::UserConfig }
      it { subject.reader.should eq :foo }
    end

    context "when mongoid_userstamp_user has been set" do
      subject do
        User.mongoid_userstamp_user
        User.mongoid_userstamp_user(reader: :foo)
      end
      it { should be_a Mongoid::Userstamp::UserConfig }
      it { subject.reader.should eq :current_user }
    end
  end
end