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testSubscribeMessageMqtt5EncodeAsMqtt3() — netty Function Reference

Architecture documentation for the testSubscribeMessageMqtt5EncodeAsMqtt3() function in MqttCodecTest.java from the netty codebase.

Function java Buffer Allocators calls 2

Entity Profile

Dependency Diagram

graph TD
  35366239_adce_155e_07b3_48156dd4774f["testSubscribeMessageMqtt5EncodeAsMqtt3()"]
  f4aba1d9_6b30_ec96_9eaa_4c5557b5796d["MqttCodecTest"]
  35366239_adce_155e_07b3_48156dd4774f -->|defined in| f4aba1d9_6b30_ec96_9eaa_4c5557b5796d
  25a0f3b3_7f7d_acef_16ff_03dee5be358c["validateFixedHeaders()"]
  35366239_adce_155e_07b3_48156dd4774f -->|calls| 25a0f3b3_7f7d_acef_16ff_03dee5be358c
  3017c0ee_d393_70d1_057f_d0ee84c761db["validatePacketIdAndPropertiesVariableHeader()"]
  35366239_adce_155e_07b3_48156dd4774f -->|calls| 3017c0ee_d393_70d1_057f_d0ee84c761db
  style 35366239_adce_155e_07b3_48156dd4774f fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

codec-mqtt/src/test/java/io/netty/handler/codec/mqtt/MqttCodecTest.java lines 711–744

    @Test
    public void testSubscribeMessageMqtt5EncodeAsMqtt3() throws Exception {
        when(versionAttrMock.get()).thenReturn(MqttVersion.MQTT_3_1_1);

        //Set parameters only available in MQTT5 to see if they're dropped when encoding as MQTT3
        MqttProperties props = new MqttProperties();
        props.add(new MqttProperties.IntegerProperty(PAYLOAD_FORMAT_INDICATOR, 6));
        final MqttSubscribeMessage message = MqttMessageBuilders.subscribe()
                .messageId((short) 1)
                .properties(props)
                .addSubscription("/topic", new MqttSubscriptionOption(AT_LEAST_ONCE,
                        true,
                        true,
                        SEND_AT_SUBSCRIBE_IF_NOT_YET_EXISTS))
                .build();
        ByteBuf byteBuf = MqttEncoder.doEncode(ctx, message);

        mqttDecoder.channelRead(ctx, byteBuf);

        assertEquals(1, out.size());
        final MqttSubscribeMessage decodedMessage = (MqttSubscribeMessage) out.get(0);

        final MqttSubscribeMessage expectedMessage = MqttMessageBuilders.subscribe()
                .messageId((short) 1)
                .addSubscription("/topic", MqttSubscriptionOption.onlyFromQos(AT_LEAST_ONCE))
                .build();
        validateFixedHeaders(expectedMessage.fixedHeader(), decodedMessage.fixedHeader());
        final MqttMessageIdAndPropertiesVariableHeader expectedHeader =
                (MqttMessageIdAndPropertiesVariableHeader) expectedMessage.variableHeader();
        final MqttMessageIdAndPropertiesVariableHeader actualHeader =
                (MqttMessageIdAndPropertiesVariableHeader) decodedMessage.variableHeader();
        validatePacketIdAndPropertiesVariableHeader(expectedHeader, actualHeader);
        validateSubscribePayload(expectedMessage.payload(), decodedMessage.payload());
    }

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Source

Frequently Asked Questions

What does testSubscribeMessageMqtt5EncodeAsMqtt3() do?
testSubscribeMessageMqtt5EncodeAsMqtt3() is a function in the netty codebase, defined in codec-mqtt/src/test/java/io/netty/handler/codec/mqtt/MqttCodecTest.java.
Where is testSubscribeMessageMqtt5EncodeAsMqtt3() defined?
testSubscribeMessageMqtt5EncodeAsMqtt3() is defined in codec-mqtt/src/test/java/io/netty/handler/codec/mqtt/MqttCodecTest.java at line 711.
What does testSubscribeMessageMqtt5EncodeAsMqtt3() call?
testSubscribeMessageMqtt5EncodeAsMqtt3() calls 2 function(s): validateFixedHeaders, validatePacketIdAndPropertiesVariableHeader.

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