# File lib/Borges/TestCase/StateRegistryTest.rb, line 90
  def test_revert
    a = ValueHolder.new(1)

    @registry.register(a)

    snap1 = @registry.snapshot

    a.contents = 2

    assert_equal(2, a.contents)

    @registry.restore_snapshot(snap1)

    assert_equal(1, a.contents)
  end