| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.cassandra.sidecar.client; |
| |
| import java.nio.ByteBuffer; |
| import java.nio.charset.StandardCharsets; |
| |
| import org.junit.jupiter.api.BeforeAll; |
| import org.junit.jupiter.api.Test; |
| |
| import static org.assertj.core.api.Assertions.assertThat; |
| |
| /** |
| * Unit tests for {@link StreamBuffer} |
| */ |
| class StreamBufferTest |
| { |
| static byte[] source; |
| static StreamBuffer.ByteArrayWrapper streamBuffer; |
| |
| @BeforeAll |
| static void setup() |
| { |
| source = new byte[1024]; |
| source[5] = 'a'; |
| streamBuffer = StreamBuffer.wrap(source); |
| } |
| |
| @Test |
| void testStreamBuffer() |
| { |
| assertThat(streamBuffer).isNotNull(); |
| assertThat(streamBuffer.readableBytes()).isEqualTo(1024); |
| assertThat(streamBuffer.getByte(5)).isEqualTo((byte) 'a'); |
| streamBuffer.release(); // do nothing |
| } |
| |
| @Test |
| void testCopyToByteArray() |
| { |
| byte[] dst = new byte[1]; |
| streamBuffer.copyBytes(5, dst, 0, 1); |
| assertThat(dst[0]).isEqualTo((byte) 'a'); |
| } |
| |
| @Test |
| void testFullCopyBytesToByteBuffer() |
| { |
| StreamBuffer streamBuffer = StreamBuffer.wrap("Hello World".getBytes(StandardCharsets.UTF_8)); |
| ByteBuffer destination = ByteBuffer.allocate(20); |
| streamBuffer.copyBytes(0, destination, 11); |
| assertThat(destination.hasArray()).isTrue(); |
| assertThat(destination.position()).isEqualTo(0); |
| assertThat(destination.limit()).isEqualTo(11); |
| byte[] dst = new byte[destination.limit()]; |
| destination.get(dst, 0, dst.length); |
| assertThat(new String(dst, StandardCharsets.UTF_8)).isEqualTo("Hello World"); |
| } |
| |
| @Test |
| void testPartialCopyBytesToByteBuffer() |
| { |
| StreamBuffer streamBuffer = StreamBuffer.wrap("Hello World".getBytes(StandardCharsets.UTF_8)); |
| ByteBuffer destination = ByteBuffer.allocate(20); |
| streamBuffer.copyBytes(0, destination, 5); |
| assertThat(destination.hasArray()).isTrue(); |
| assertThat(destination.position()).isEqualTo(0); |
| assertThat(destination.limit()).isEqualTo(5); |
| byte[] dst = new byte[destination.limit()]; |
| destination.get(dst, 0, dst.length); |
| assertThat(new String(dst, StandardCharsets.UTF_8)).isEqualTo("Hello"); |
| } |
| |
| @Test |
| void testGetByte() |
| { |
| String inputString = "take me, one at a time"; |
| StreamBuffer streamBuffer = StreamBuffer.wrap(inputString.getBytes(StandardCharsets.UTF_8)); |
| for (int i = 0; i < inputString.length(); i++) |
| { |
| assertThat(streamBuffer.getByte(i)).isEqualTo((byte) inputString.charAt(i)); |
| } |
| } |
| } |