WebSocketUtf8FrameValidatorTest Class — netty Architecture

Source Code

codec-http/src/test/java/io/netty/handler/codec/http/websocketx/WebSocketUtf8FrameValidatorTest.java lines 29–101

public class WebSocketUtf8FrameValidatorTest {

    @Test
    public void testCorruptedFrameExceptionInFinish() {
        assertCorruptedFrameExceptionHandling(new byte[]{-50});
    }

    @Test
    public void testCorruptedFrameExceptionInCheck() {
        assertCorruptedFrameExceptionHandling(new byte[]{-8, -120, -128, -128, -128});
    }

    @Test
    void testNotCloseOnProtocolViolation() {
        final EmbeddedChannel channel = new EmbeddedChannel(new Utf8FrameValidator(false));
        final TextWebSocketFrame frame = new TextWebSocketFrame(Unpooled.copiedBuffer(new byte[] { -50 }));
        assertThrows(CorruptedWebSocketFrameException.class, new Executable() {
            @Override
            public void execute() throws Throwable {
                channel.writeInbound(frame);
            }
        }, "bytes are not UTF-8");

        assertTrue(channel.isActive());
        assertFalse(channel.finish());
        assertEquals(0, frame.refCnt());
    }

    private void assertCorruptedFrameExceptionHandling(byte[] data) {
        final EmbeddedChannel channel = new EmbeddedChannel(new Utf8FrameValidator());
        final TextWebSocketFrame frame = new TextWebSocketFrame(Unpooled.copiedBuffer(data));
        assertThrows(CorruptedWebSocketFrameException.class, new Executable() {
            @Override
            public void execute() throws Throwable {
                channel.writeInbound(frame);
            }
        }, "bytes are not UTF-8");

        assertFalse(channel.isActive());

        CloseWebSocketFrame closeFrame = channel.readOutbound();
        assertNotNull(closeFrame);
        assertEquals("bytes are not UTF-8", closeFrame.reasonText());
        assertEquals(1007, closeFrame.statusCode());
        assertTrue(closeFrame.release());

        assertEquals(0, frame.refCnt());
        assertFalse(channel.finish());
    }

    @Test
    void testCloseWithStatusInTheMiddleOfFragmentAllowed() {
        testControlFrameInTheMiddleOfFragmentAllowed(new CloseWebSocketFrame(WebSocketCloseStatus.NORMAL_CLOSURE));
    }

    @Test
    void testPingInTheMiddleOfFragmentAllowed() {
        testControlFrameInTheMiddleOfFragmentAllowed(new PingWebSocketFrame(Unpooled.EMPTY_BUFFER));
    }

    @Test
    void testPongInTheMiddleOfFragmentAllowed() {
        testControlFrameInTheMiddleOfFragmentAllowed(new PongWebSocketFrame(Unpooled.EMPTY_BUFFER));
    }

    private static void testControlFrameInTheMiddleOfFragmentAllowed(WebSocketFrame controlFrame) {
        final EmbeddedChannel channel = new EmbeddedChannel(new Utf8FrameValidator(false));
        final TextWebSocketFrame frame = new TextWebSocketFrame(false, 0, "text");
        assertTrue(channel.writeInbound(frame));
        assertTrue(channel.writeInbound(controlFrame));
        assertTrue(channel.finishAndReleaseAll());
    }
}