@Test
    public void testSaveComment1() throws Exception {
        properties.put(KEY1, COMMENT, VALUE1);
        StringWriter sw = new StringWriter();
        properties.save(sw);
        String msg = sw.toString();
        assertTrue(sw.toString().endsWith(RESULT1), msg);
    }

    private static final String RESULT1A = COMMENT + LINE_SEPARATOR + KEY2A + " = " + VALUE1 + LINE_SEPARATOR;

			bf := b[:min(int64(len(b)), dataStart-sw.pos)]
			nf, err = zeroWriter{}.Write(bf)
		} else { // In a data fragment
			bf := b[:min(int64(len(b)), dataEnd-sw.pos)]
			nf, err = sw.fw.Write(bf)
		}
		b = b[nf:]
		sw.pos += int64(nf)
		if sw.pos >= dataEnd && len(sw.sp) > 1 {
			sw.sp = sw.sp[1:] // Ensure last fragment always remains
		}
	}

	n = len(b0) - len(b)
	switch {
	case err == ErrWriteTooLong:

            if (width <= 0) {
                width = HelpFormatter.DEFAULT_WIDTH;
            }

            pw.accept("");

            StringWriter sw = new StringWriter();
            PrintWriter pw2 = new PrintWriter(sw);
            formatter.printHelp(
                    pw2,
                    width,
                    commandLineSyntax(command),

// why the write is short.
func (b *Writer) WriteString(s string) (int, error) {
	var sw io.StringWriter
	tryStringWriter := true

	nn := 0
	for len(s) > b.Available() && b.err == nil {
		var n int
		if b.Buffered() == 0 && sw == nil && tryStringWriter {
			// Check at most once whether b.wr is a StringWriter.
			sw, tryStringWriter = b.wr.(io.StringWriter)
		}
		if b.Buffered() == 0 && tryStringWriter {

# -*- mode: ruby -*-
# vim: ft=ruby ts=2 sw=2 sts=2 et:

# This Vagrantfile exists to test packaging. Read more about its use in the
# vagrant section in TESTING.asciidoc.

# Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
# or more contributor license agreements. Licensed under the Elastic License
# 2.0 and the Server Side Public License, v 1; you may not use this file except