public void testDroppingMessagesWhileSending() throws Exception {
assertEquals(0, STATS.getSent());
assertEquals(0, STATS.getSentDropped());
Message m[] = new Message[10];
for (int i = 0; i < m.length; i++) m[i] = g(i + 1);
// Set queue to drop msgs (5 of'm) after the 3rd is added.
for (int i = 0; i < m.length; i++) WRITER.send(m[i]);
assertEquals(0, STATS.getSentDropped());
assertEquals(10, STATS.getSent());
QUEUE.setNumToDrop(4);
QUEUE.setStartDropIn(3);
assertFalse(WRITER.handleWrite());
assertEquals(4, STATS.getSentDropped());
ByteBuffer buffer = SINK.getBuffer();
Message in[] = read(buffer, 6);
assertFalse(buffer.hasRemaining());
assertEquals(6, SENT.size());
assertEquals(buffer(m[0]), buffer(in[0]));
assertEquals(buffer(m[1]), buffer(in[1]));
assertEquals(buffer(m[2]), buffer(in[2])); // started dropping now.
assertEquals(buffer(m[7]), buffer(in[3])); // finished dropping here.
assertEquals(buffer(m[8]), buffer(in[4]));
assertEquals(buffer(m[9]), buffer(in[5]));
}
public void testSimpleWrite() throws Exception {
Message one, two, three;
one = q("query one");
two = g(7123);
three = s(8134);
assertEquals(0, STATS.getSent());
assertFalse(SINK.interested());
WRITER.send(one);
WRITER.send(two);
WRITER.send(three);
assertEquals(3, STATS.getSent());
assertTrue(SINK.interested());
assertEquals(0, SENT.size());
assertFalse(WRITER.handleWrite()); // nothing left to write.
assertEquals(3, SENT.size());
ByteBuffer buffer = SINK.getBuffer();
assertEquals(
one.getTotalLength() + two.getTotalLength() + three.getTotalLength(), buffer.limit());
ByteArrayInputStream in = new ByteArrayInputStream(buffer.array(), 0, buffer.limit());
Message in1, in2, in3;
in1 = read(in);
in2 = read(in);
in3 = read(in);
assertEquals(-1, in.read());
assertEquals(buffer(one), buffer(in1));
assertEquals(buffer(two), buffer(in2));
assertEquals(buffer(three), buffer(in3));
assertEquals(buffer(one), buffer(SENT.next()));
assertEquals(buffer(two), buffer(SENT.next()));
assertEquals(buffer(three), buffer(SENT.next()));
assertFalse(SINK.interested());
assertEquals(3, STATS.getSent());
}
public void testWritePartialMsg() throws Exception {
assertEquals(0, SENT.size());
assertEquals(0, STATS.getSent());
Message m = q("reaalllllllllly long query");
SINK.resize(m.getTotalLength() - 20);
WRITER.send(m);
assertEquals(1, STATS.getSent());
assertTrue(WRITER.handleWrite()); // still stuff left to write.
assertTrue(SINK.interested());
assertEquals(
1, SENT.size()); // it's sent, even though the other side didn't receive it fully yet.
assertEquals(buffer(m), buffer(SENT.next()));
ByteBuffer buffer = ByteBuffer.allocate(m.getTotalLength());
buffer.put(SINK.getBuffer());
SINK.resize(100000);
assertFalse(WRITER.handleWrite());
assertFalse(SINK.interested());
buffer.put(SINK.getBuffer());
Message in = read((ByteBuffer) buffer.flip());
assertEquals(buffer(m), buffer(in));
}
public void testWritePartialAndMore() throws Exception {
Message out1 = q("first long query");
Message out2 = q("second long query");
Message out3 = q("third long query");
assertEquals(0, STATS.getSent());
SINK.resize(out1.getTotalLength() + 20);
WRITER.send(out1);
WRITER.send(out2);
assertEquals(2, STATS.getSent());
assertEquals(0, SENT.size());
assertTrue(WRITER.handleWrite());
assertTrue(SINK.interested());
assertEquals(2, SENT.size()); // two were sent, one was received.
assertEquals(buffer(out1), buffer(SENT.next()));
assertEquals(buffer(out2), buffer(SENT.next()));
ByteBuffer buffer = ByteBuffer.allocate(1000);
buffer.put(SINK.getBuffer()).flip();
SINK.resize(10000);
Message in1 = read(buffer);
assertTrue(buffer.hasRemaining());
assertEquals(20, buffer.remaining());
buffer.compact();
WRITER.send(out3);
assertEquals(3, STATS.getSent());
assertFalse(WRITER.handleWrite());
assertEquals(1, SENT.size());
assertEquals(buffer(out3), buffer(SENT.next()));
assertFalse(SINK.interested());
buffer.put(SINK.getBuffer()).flip();
Message in2 = read(buffer);
Message in3 = read(buffer);
assertTrue(!buffer.hasRemaining());
assertEquals(buffer(out2), buffer(in2));
assertEquals(buffer(out3), buffer(in3));
}