| /* |
| * 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.reef.io.storage; |
| |
| import org.apache.reef.exception.evaluator.ServiceException; |
| import org.apache.reef.io.Accumulator; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.util.Arrays; |
| |
| public class FramingTest { |
| |
| @Test |
| public void frameRoundTripTest() throws IOException, ServiceException { |
| final ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| final ByteArrayOutputStream baos2 = new ByteArrayOutputStream(); |
| final FramingOutputStream o = new FramingOutputStream(baos); |
| final FramingOutputStream o2 = new FramingOutputStream(baos2); |
| final Accumulator<byte[]> a = o2.accumulator(); |
| int offset = 0; |
| for (int i = 0; i < 256; i++) { |
| final byte[] b = new byte[i]; |
| Arrays.fill(b, (byte) i); |
| o.write(b); |
| if (i == 255) { |
| o.close(); |
| } else { |
| o.nextFrame(); |
| } |
| offset += 4 + i; |
| Assert.assertEquals(offset, o.getCurrentOffset()); |
| a.add(b); |
| Assert.assertEquals(offset, o2.getCurrentOffset()); |
| } |
| a.close(); |
| o2.close(); |
| final byte[] b1 = baos.toByteArray(); |
| final byte[] b2 = baos2.toByteArray(); |
| Assert.assertArrayEquals(b1, b2); |
| final FramingInputStream inA1 = new FramingInputStream(new ByteArrayInputStream(b1)); |
| final FramingInputStream inA2 = new FramingInputStream(new ByteArrayInputStream(b2)); |
| for (int i = 0; i <= 256; i++) { |
| final byte[] b = new byte[i]; |
| Arrays.fill(b, (byte) i); |
| final byte[] f = inA1.readFrame(); |
| final byte[] g = inA2.readFrame(); |
| if (i == 256) { |
| Assert.assertNull(f); |
| Assert.assertNull(g); |
| } else { |
| Assert.assertArrayEquals(b, f); |
| Assert.assertArrayEquals(b, g); |
| } |
| } |
| inA2.close(); |
| inA1.close(); |
| |
| final FramingInputStream inB1 = new FramingInputStream(new ByteArrayInputStream(b1)); |
| int i = 0; |
| for (final byte[] bin : inB1) { |
| final byte[] b = new byte[i]; |
| Arrays.fill(b, (byte) i); |
| Assert.assertArrayEquals(b, bin); |
| i++; |
| } |
| Assert.assertEquals(256, i); |
| inB1.close(); |
| |
| final FramingInputStream inB2 = new FramingInputStream(new ByteArrayInputStream(b2)); |
| i = 0; |
| for (final byte[] bin : inB2) { |
| final byte[] b = new byte[i]; |
| Arrays.fill(b, (byte) i); |
| Assert.assertArrayEquals(b, bin); |
| i++; |
| } |
| Assert.assertEquals(256, i); |
| inB2.close(); |
| Assert.assertArrayEquals(b1, b2); |
| } |
| |
| } |