gems.virtus-1.0.5.spec.unit.virtus.freeze_spec.rb Maven / Gradle / Ivy

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require 'spec_helper'

describe Virtus, '#freeze' do
  subject { object.freeze }

  let(:model) {
    Class.new {
      include Virtus

      attribute :name, String,  :default => 'foo', :lazy => true
      attribute :age,  Integer, :default => 30
      attribute :rand, Float,   :default => Proc.new { rand }
    }
  }

  let(:object) { model.new }

  it { is_expected.to be_frozen }

  describe '#name' do
    subject { super().name }
    it { is_expected.to eql('foo') }
  end

  describe '#age' do
    subject { super().age }
    it { is_expected.to be(30) }
  end

  it "does not change dynamic default values" do
    original_value = object.rand
    object.freeze
    expect(object.rand).to eq original_value
  end

  it "does not change default attributes that have been explicitly set" do
    object.rand = 3.14
    object.freeze
    expect(object.rand).to eq 3.14
  end
end