testFallbackSuccess() — netty Function Reference

Source Code

codec-http/src/test/java/io/netty/handler/codec/http/websocketx/extensions/WebSocketClientExtensionHandlerTest.java lines 100–150

    @Test
    public void testFallbackSuccess() {
        // initialize
        when(mainHandshakerMock.newRequestData()).
                thenReturn(new WebSocketExtensionData("main", Collections.<String, String>emptyMap()));
        when(mainHandshakerMock.handshakeExtension(any(WebSocketExtensionData.class))).thenReturn(null);
        when(fallbackHandshakerMock.newRequestData()).
                thenReturn(new WebSocketExtensionData("fallback", Collections.<String, String>emptyMap()));
        when(fallbackHandshakerMock.handshakeExtension(
                any(WebSocketExtensionData.class))).thenReturn(fallbackExtensionMock);
        when(fallbackExtensionMock.rsv()).thenReturn(WebSocketExtension.RSV1);
        when(fallbackExtensionMock.newExtensionEncoder()).thenReturn(new DummyEncoder());
        when(fallbackExtensionMock.newExtensionDecoder()).thenReturn(new DummyDecoder());

        // execute
        EmbeddedChannel ch = new EmbeddedChannel(new WebSocketClientExtensionHandler(
                mainHandshakerMock, fallbackHandshakerMock));

        HttpRequest req = newUpgradeRequest(null);
        ch.writeOutbound(req);

        HttpRequest req2 = ch.readOutbound();
        List<WebSocketExtensionData> reqExts = WebSocketExtensionUtil.extractExtensions(
                req2.headers().get(HttpHeaderNames.SEC_WEBSOCKET_EXTENSIONS));

        HttpResponse res = newUpgradeResponse("fallback");
        ch.writeInbound(res);

        HttpResponse res2 = ch.readInbound();
        List<WebSocketExtensionData> resExts = WebSocketExtensionUtil.extractExtensions(
                res2.headers().get(HttpHeaderNames.SEC_WEBSOCKET_EXTENSIONS));

        // test
        assertEquals(2, reqExts.size());
        assertEquals("main", reqExts.get(0).name());
        assertEquals("fallback", reqExts.get(1).name());

        assertEquals(1, resExts.size());
        assertEquals("fallback", resExts.get(0).name());
        assertTrue(resExts.get(0).parameters().isEmpty());
        assertNotNull(ch.pipeline().get(DummyDecoder.class));
        assertNotNull(ch.pipeline().get(DummyEncoder.class));

        verify(mainHandshakerMock).newRequestData();
        verify(mainHandshakerMock).handshakeExtension(any(WebSocketExtensionData.class));
        verify(fallbackHandshakerMock).newRequestData();
        verify(fallbackHandshakerMock).handshakeExtension(any(WebSocketExtensionData.class));
        verify(fallbackExtensionMock, atLeastOnce()).rsv();
        verify(fallbackExtensionMock).newExtensionEncoder();
        verify(fallbackExtensionMock).newExtensionDecoder();
    }