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testUserDefinedWritability2() — netty Function Reference

Architecture documentation for the testUserDefinedWritability2() function in ChannelOutboundBufferTest.java from the netty codebase.

Function java Buffer Telemetry calls 1

Entity Profile

Dependency Diagram

graph TD
  2e4cc85a_2e25_69c7_5857_a5a0ac6675a2["testUserDefinedWritability2()"]
  06eb8f18_da0c_40bf_fb14_47e2c94a6923["ChannelOutboundBufferTest"]
  2e4cc85a_2e25_69c7_5857_a5a0ac6675a2 -->|defined in| 06eb8f18_da0c_40bf_fb14_47e2c94a6923
  00d35efd_91f9_9891_6cdb_8a43498309e6["safeClose()"]
  2e4cc85a_2e25_69c7_5857_a5a0ac6675a2 -->|calls| 00d35efd_91f9_9891_6cdb_8a43498309e6
  style 2e4cc85a_2e25_69c7_5857_a5a0ac6675a2 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

transport/src/test/java/io/netty/channel/ChannelOutboundBufferTest.java lines 351–389

    @Test
    public void testUserDefinedWritability2() {
        final StringBuilder buf = new StringBuilder();
        EmbeddedChannel ch = new EmbeddedChannel(new ChannelInboundHandlerAdapter() {
            @Override
            public void channelWritabilityChanged(ChannelHandlerContext ctx) {
                buf.append(ctx.channel().isWritable());
                buf.append(' ');
            }
        });

        ch.config().setWriteBufferLowWaterMark(128);
        ch.config().setWriteBufferHighWaterMark(256);

        ChannelOutboundBuffer cob = ch.unsafe().outboundBuffer();

        // Ensure that setting a user-defined writability flag to false affects channel.isWritable()
        cob.setUserDefinedWritability(1, false);
        ch.runPendingTasks();
        assertEquals("false ", buf.toString());

        // Ensure that setting another user-defined writability flag to false does not trigger
        // channelWritabilityChanged.
        cob.setUserDefinedWritability(2, false);
        ch.runPendingTasks();
        assertEquals("false ", buf.toString());

        // Ensure that setting only one user-defined writability flag to true does not affect channel.isWritable()
        cob.setUserDefinedWritability(1, true);
        ch.runPendingTasks();
        assertEquals("false ", buf.toString());

        // Ensure that setting all user-defined writability flags to true affects channel.isWritable()
        cob.setUserDefinedWritability(2, true);
        ch.runPendingTasks();
        assertEquals("false true ", buf.toString());

        safeClose(ch);
    }

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Frequently Asked Questions

What does testUserDefinedWritability2() do?
testUserDefinedWritability2() is a function in the netty codebase, defined in transport/src/test/java/io/netty/channel/ChannelOutboundBufferTest.java.
Where is testUserDefinedWritability2() defined?
testUserDefinedWritability2() is defined in transport/src/test/java/io/netty/channel/ChannelOutboundBufferTest.java at line 351.
What does testUserDefinedWritability2() call?
testUserDefinedWritability2() calls 1 function(s): safeClose.

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