# File tests/writertester.rb, line 113
    def test_writer_errors
	expect_error(/attribute outside of tag start/) { | w |
	    w.attribute('illegal', 'because no tag yet')
	}
	expect_error(/end element without start element/) { | w |
	    w.endElement('illegal because no tag yet')
	}
	expect_error(/does not match open element name/) { | w |
	    w.startElement('foo')
	    w.endElement('bar')
	}
    end