require "rexml/text" module REXMLTests class TextTester < Test::Unit::TestCase include REXML def test_shift_operator_chain text = Text.new("original\r\n") text << "append1\r\n" << "append2\r\n" assert_equal("original\nappend1\nappend2\n", text.to_s) end def test_shift_operator_cache text = Text.new("original\r\n") text << "append1\r\n" << "append2\r\n" assert_equal("original\nappend1\nappend2\n", text.to_s) text << "append3\r\n" << "append4\r\n" assert_equal("original\nappend1\nappend2\nappend3\nappend4\n", text.to_s) end end end