@Test public void testWrite_CharArray_Offset_Length() throws Exception {
  final char[] chars=FIRST.toCharArray();
  final int middle=chars.length / 2;
  final int length=chars.length - middle;
  final String right=new String(chars,middle,length);
  this.writer.write(chars,middle,length);
  assertMessages();
  this.writer.write('\n');
  assertMessages(right);
  if (this.wrapped != null) {
    assertEquals(FIRST.substring(middle,FIRST.length()) + '\n',this.wrapped.toString());
  }
}