Staleness in long-lived instantiations of the same object

stale_objects.rb

  it "guards against stale objects by checking a fresh instance before creating a duplciate account" do
    @d = Dummy.create
    # Hey, I somehow have an extra instance of this object!
    @d2 = Dummy.find(@d.id)
    # And I set up an account by calling from my original instance
    d1s_account = @d.account(AC_AR)
    # My original instance got the account back and stored it just fine
    d1s_account.id.should_not be_nil
    @d.account_id(AC_AR).should eq(d1s_account)
    # If I create a new instance now, it'll have the account ID as we expect
    Dummy.find(@d.id).account_id(AC_AR).should eq(d1s_account)
    # But the stale old object from the beginning doesn't have the ID
    @d2.account_id(AC_AR).should be_nil
    # Good thing we do an extra check before we create a duplicate account
    @d2.account(AC_AR).should eq(d1s_account)
  end