/
SectionAcknowledgmentTest.java
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/
SectionAcknowledgmentTest.java
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//
// ========================================================================
// Copyright (c) 1995-2022 Mort Bay Consulting Pty Ltd and others.
//
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License v. 2.0 which is available at
// https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
// which is available at https://www.apache.org/licenses/LICENSE-2.0.
//
// SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
// ========================================================================
//
package org.eclipse.jetty.http3.qpack;
import java.nio.ByteBuffer;
import org.eclipse.jetty.http3.qpack.internal.instruction.SectionAcknowledgmentInstruction;
import org.eclipse.jetty.util.BufferUtil;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import static org.eclipse.jetty.http3.qpack.QpackTestUtil.encode;
import static org.eclipse.jetty.http3.qpack.QpackTestUtil.toBuffer;
import static org.eclipse.jetty.http3.qpack.QpackTestUtil.toMetaData;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.containsString;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertThrows;
public class SectionAcknowledgmentTest
{
private static final int MAX_BLOCKED_STREAMS = 5;
private static final int MAX_HEADER_SIZE = 1024;
private QpackEncoder _encoder;
private QpackDecoder _decoder;
private TestDecoderHandler _decoderHandler;
private TestEncoderHandler _encoderHandler;
@BeforeEach
public void before()
{
_encoderHandler = new TestEncoderHandler();
_decoderHandler = new TestDecoderHandler();
_encoder = new QpackEncoder(_encoderHandler, MAX_BLOCKED_STREAMS);
_decoder = new QpackDecoder(_decoderHandler, MAX_HEADER_SIZE);
}
@Test
public void testSectionAcknowledgmentForZeroRequiredInsertCountOnDecoder() throws Exception
{
// Encode a header with only a value contained in the static table.
ByteBuffer buffer = encode(_encoder, 0, toMetaData("GET", "/", "http"));
// No instruction since no addition to table.
Instruction instruction = _encoderHandler.getInstruction();
assertNull(instruction);
// Decoding should generate no instruction.
_decoder.decode(0, buffer, _decoderHandler);
instruction = _decoderHandler.getInstruction();
assertNull(instruction);
}
@Test
public void testSectionAcknowledgmentForZeroRequiredInsertCountOnEncoder() throws Exception
{
// Encode a header with only a value contained in the static table.
ByteBuffer buffer = encode(_encoder, 0, toMetaData("GET", "/", "http"));
System.err.println(BufferUtil.toDetailString(buffer));
// Parsing a section ack instruction on the encoder when we are not expecting it should result in QPACK_DECODER_STREAM_ERROR.
SectionAcknowledgmentInstruction instruction = new SectionAcknowledgmentInstruction(0);
ByteBuffer instructionBuffer = toBuffer(instruction);
QpackException error = assertThrows(QpackException.class, () -> _encoder.parseInstructions(instructionBuffer));
assertThat(error.getMessage(), containsString("No StreamInfo for 0"));
}
}