97 lines
3.6 KiB
Java
97 lines
3.6 KiB
Java
/*
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* Copyright 2020 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.buffer.api.tests;
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import io.netty.buffer.api.Buffer;
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import io.netty.buffer.api.BufferAllocator;
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import io.netty.buffer.api.BufferClosedException;
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import io.netty.buffer.api.BufferRef;
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import io.netty.buffer.api.Send;
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import org.junit.jupiter.api.Test;
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import java.util.concurrent.atomic.AtomicReference;
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import static org.assertj.core.api.Assertions.assertThat;
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import static org.junit.jupiter.api.Assertions.assertThrows;
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class BufferRefTest {
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@Test
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public void closingBufRefMustCloseOwnedBuf() {
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try (BufferAllocator allocator = BufferAllocator.heap()) {
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BufferRef ref;
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try (Buffer b = allocator.allocate(8)) {
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ref = new BufferRef(b.send());
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}
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ref.contents().writeInt(42);
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assertThat(ref.contents().readInt()).isEqualTo(42);
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ref.close();
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assertThrows(BufferClosedException.class, () -> ref.contents().writeInt(32));
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}
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}
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@Test
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public void closingBufRefMustCloseOwnedBufFromSend() {
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try (BufferAllocator allocator = BufferAllocator.heap();
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Buffer buf = allocator.allocate(8)) {
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BufferRef ref = new BufferRef(buf.send());
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ref.contents().writeInt(42);
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assertThat(ref.contents().readInt()).isEqualTo(42);
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ref.close();
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assertThrows(BufferClosedException.class, () -> ref.contents().writeInt(32));
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}
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}
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@Test
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public void mustCloseOwnedBufferWhenReplacedFromSend() {
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try (BufferAllocator allocator = BufferAllocator.heap()) {
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AtomicReference<Buffer> orig = new AtomicReference<>();
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BufferRef ref;
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Send<Buffer> s = allocator.allocate(8).send();
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ref = new BufferRef(Send.sending(Buffer.class, () -> {
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Buffer b = s.receive();
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orig.set(b);
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return b;
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}));
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orig.get().writeInt(42);
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assertThat(ref.contents().readInt()).isEqualTo(42);
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try (Buffer buf = allocator.allocate(8)) {
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ref.replace(buf.send()); // Pass replacement via send().
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}
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assertThrows(BufferClosedException.class, () -> orig.get().writeInt(32));
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ref.contents().writeInt(42);
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assertThat(ref.contents().readInt()).isEqualTo(42);
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ref.close();
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assertThrows(BufferClosedException.class, () -> ref.contents().writeInt(32));
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}
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}
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@Test
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public void sendingRefMustSendBuffer() {
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try (BufferAllocator allocator = BufferAllocator.heap();
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BufferRef refA = new BufferRef(allocator.allocate(8).send())) {
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refA.contents().writeInt(42);
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Send<BufferRef> send = refA.send();
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assertThrows(BufferClosedException.class, () -> refA.contents().readInt());
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try (BufferRef refB = send.receive()) {
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assertThat(refB.contents().readInt()).isEqualTo(42);
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}
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}
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}
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}
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