66 lines
2.6 KiB
Java
66 lines
2.6 KiB
Java
/*
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* Copyright 2021 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.internal.ResourceSupport;
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import org.junit.jupiter.params.ParameterizedTest;
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import org.junit.jupiter.params.provider.MethodSource;
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import static io.netty.buffer.api.internal.Statics.acquire;
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import static org.junit.jupiter.api.Assertions.assertThrows;
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public class BufferCompactTest extends BufferTestSupport {
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@ParameterizedTest
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@MethodSource("allocators")
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public void compactMustDiscardReadBytes(Fixture fixture) {
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try (BufferAllocator allocator = fixture.createAllocator();
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Buffer buf = allocator.allocate(16)) {
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buf.writeLong(0x0102030405060708L).writeInt(0x090A0B0C);
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assertEquals(0x01020304, buf.readInt());
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assertEquals(12, buf.writerOffset());
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assertEquals(4, buf.readerOffset());
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assertEquals(4, buf.writableBytes());
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assertEquals(8, buf.readableBytes());
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assertEquals(16, buf.capacity());
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buf.compact();
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assertEquals(8, buf.writerOffset());
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assertEquals(0, buf.readerOffset());
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assertEquals(8, buf.writableBytes());
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assertEquals(8, buf.readableBytes());
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assertEquals(16, buf.capacity());
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assertEquals(0x05060708090A0B0CL, buf.readLong());
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}
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}
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@ParameterizedTest
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@MethodSource("allocators")
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public void compactMustThrowForUnownedBuffer(Fixture fixture) {
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try (BufferAllocator allocator = fixture.createAllocator();
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Buffer buf = allocator.allocate(8)) {
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buf.writeLong(0x0102030405060708L);
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assertEquals((byte) 0x01, buf.readByte());
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try (Buffer ignore = acquire((ResourceSupport<?, ?>) buf)) {
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assertThrows(IllegalStateException.class, () -> buf.compact());
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assertEquals(1, buf.readerOffset());
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}
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assertEquals((byte) 0x02, buf.readByte());
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}
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}
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}
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