# File test/test_AliasMap.rb, line 238
    def test_up
      entry = { :pos => 0 }
      @AliasMap.alias = entry
      @AliasMap.up
      assert_equal(0, @swap_call)
      assert_equal(0, @set_aliases_call)
      assert_equal(0, entry[:pos])

      entry = { :pos => 1 }
      @AliasMap.alias = entry
      @AliasMap.up
      assert_equal(1, @swap_call)
      assert_equal(1, @swap_left)
      assert_equal(0, @swap_right)
      assert_equal(1, @set_aliases_call)
      assert_equal(@alias_list, @set_aliases_alias_list)
      assert_equal(0, entry[:pos])
    end