@Test
public void testReplacement() throws Exception {
EmbeddedChannel ch = new EmbeddedChannel(new BloatedLineDecoder());
// "AB" should be forwarded to LineDecoder by BloatedLineDecoder.
ch.writeInbound(Unpooled.wrappedBuffer(new byte[] {'A', 'B'}));
assertNull(ch.readInbound());
// "C\n" should be appended to "AB" so that LineDecoder decodes it correctly.
ch.writeInbound(Unpooled.wrappedBuffer(new byte[] {'C', '\n'}));
assertEquals(
releaseLater(Unpooled.wrappedBuffer(new byte[] {'A', 'B', 'C'})),
releaseLater(ch.readInbound()));
ch.finish();
assertNull(ch.readInbound());
}
@Test
public void testSingleDecode() throws Exception {
LineDecoder decoder = new LineDecoder();
decoder.setSingleDecode(true);
EmbeddedChannel ch = new EmbeddedChannel(decoder);
// "C\n" should be appended to "AB" so that LineDecoder decodes it correctly.
ch.writeInbound(Unpooled.wrappedBuffer(new byte[] {'C', '\n', 'B', '\n'}));
assertEquals(
releaseLater(Unpooled.wrappedBuffer(new byte[] {'C'})), releaseLater(ch.readInbound()));
assertNull("Must be null as it must only decode one frame", ch.readInbound());
ch.read();
ch.finish();
assertEquals(
releaseLater(Unpooled.wrappedBuffer(new byte[] {'B'})), releaseLater(ch.readInbound()));
assertNull(ch.readInbound());
}
@Test
public void testLineProtocol() {
EmbeddedChannel ch = new EmbeddedChannel(new LineDecoder());
// Ordinary input
ch.writeInbound(Unpooled.wrappedBuffer(new byte[] {'A'}));
assertNull(ch.readInbound());
ch.writeInbound(Unpooled.wrappedBuffer(new byte[] {'B'}));
assertNull(ch.readInbound());
ch.writeInbound(Unpooled.wrappedBuffer(new byte[] {'C'}));
assertNull(ch.readInbound());
ch.writeInbound(Unpooled.wrappedBuffer(new byte[] {'\n'}));
assertEquals(Unpooled.wrappedBuffer(new byte[] {'A', 'B', 'C'}), ch.readInbound());
// Truncated input
ch.writeInbound(Unpooled.wrappedBuffer(new byte[] {'A'}));
assertNull(ch.readInbound());
ch.finish();
assertNull(ch.readInbound());
}