require 'test/unit' require 'fox16' class TC_FXExtentd < Test::Unit::TestCase include Fox def test_lower_always_returns_same_instance e = FXExtentd.new(0, 1, 0, 1) assert_same e.lower, e.lower end def test_upper_always_returns_same_instance e = FXExtentd.new(0, 1, 0, 1) assert_same e.upper, e.upper end def test_index_always_returns_same_instance e = FXExtentd.new(0, 1, 0, 1) assert_same e[0], e[0] end end