final CharArrayBuffer chbuffer = new CharArrayBuffer(16);
final SessionOutputBufferMock outbuffer = new SessionOutputBufferMock();
for (final String teststr : teststrs) {
chbuffer.clear();
chbuffer.append(teststr);
outbuffer.writeLine(chbuffer);
}
//these write operations should have no effect
outbuffer.writeLine((String)null);
outbuffer.writeLine((CharArrayBuffer)null);
outbuffer.flush();