1 /* 2 * Copyright (C) 2024 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.aconfig.storage.test; 18 19 import static org.junit.Assert.assertEquals; 20 21 import android.aconfig.storage.ByteBufferReader; 22 23 import org.junit.Test; 24 import org.junit.runner.RunWith; 25 import org.junit.runners.JUnit4; 26 27 import java.nio.ByteBuffer; 28 import java.nio.ByteOrder; 29 import java.nio.charset.StandardCharsets; 30 31 @RunWith(JUnit4.class) 32 public class ByteBufferReaderTest { 33 34 @Test testReadByte()35 public void testReadByte() { 36 ByteBuffer buffer = ByteBuffer.allocate(1); 37 byte expect = 10; 38 buffer.put(expect).rewind(); 39 40 ByteBufferReader reader = new ByteBufferReader(buffer); 41 assertEquals(expect, reader.readByte()); 42 } 43 44 @Test testReadShort()45 public void testReadShort() { 46 ByteBuffer buffer = ByteBuffer.allocate(4); 47 buffer.order(ByteOrder.LITTLE_ENDIAN); 48 short expect = Short.MAX_VALUE; 49 buffer.putShort(expect).rewind(); 50 51 ByteBufferReader reader = new ByteBufferReader(buffer); 52 assertEquals(expect, reader.readShort()); 53 } 54 55 @Test testReadInt()56 public void testReadInt() { 57 ByteBuffer buffer = ByteBuffer.allocate(4); 58 buffer.order(ByteOrder.LITTLE_ENDIAN); 59 int expect = 10000; 60 buffer.putInt(expect).rewind(); 61 62 ByteBufferReader reader = new ByteBufferReader(buffer); 63 assertEquals(expect, reader.readInt()); 64 } 65 66 @Test testReadString()67 public void testReadString() { 68 String expect = "test read string"; 69 byte[] bytes = expect.getBytes(StandardCharsets.UTF_8); 70 71 ByteBuffer buffer = ByteBuffer.allocate(expect.length() * 2 + 4); 72 buffer.order(ByteOrder.LITTLE_ENDIAN); 73 buffer.putInt(expect.length()).put(bytes).rewind(); 74 75 ByteBufferReader reader = new ByteBufferReader(buffer); 76 77 assertEquals(expect, reader.readString()); 78 } 79 } 80