[6785] | 1 | /**************************************************************** |
---|
| 2 | * Licensed to the Apache Software Foundation (ASF) under one * |
---|
| 3 | * or more contributor license agreements. See the NOTICE file * |
---|
| 4 | * distributed with this work for additional information * |
---|
| 5 | * regarding copyright ownership. The ASF licenses this file * |
---|
| 6 | * to you under the Apache License, Version 2.0 (the * |
---|
| 7 | * "License"); you may not use this file except in compliance * |
---|
| 8 | * with the License. You may obtain a copy of the License at * |
---|
| 9 | * * |
---|
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 * |
---|
| 11 | * * |
---|
| 12 | * Unless required by applicable law or agreed to in writing, * |
---|
| 13 | * software distributed under the License is distributed on an * |
---|
| 14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * |
---|
| 15 | * KIND, either express or implied. See the License for the * |
---|
| 16 | * specific language governing permissions and limitations * |
---|
| 17 | * under the License. * |
---|
| 18 | ****************************************************************/ |
---|
| 19 | |
---|
| 20 | package org.apache.james.mime4j.io; |
---|
| 21 | |
---|
| 22 | import java.io.ByteArrayInputStream; |
---|
| 23 | import java.io.IOException; |
---|
| 24 | |
---|
| 25 | import junit.framework.TestCase; |
---|
| 26 | |
---|
| 27 | public class PositionInputStreamTest extends TestCase { |
---|
| 28 | |
---|
| 29 | public void testPositionCounting() throws IOException { |
---|
| 30 | byte[] data = new byte[] {'0', '1', '2', '3', '4', '5', '6'}; |
---|
| 31 | ByteArrayInputStream instream = new ByteArrayInputStream(data); |
---|
| 32 | PositionInputStream countingStream = new PositionInputStream(instream); |
---|
| 33 | assertEquals(0, countingStream.getPosition()); |
---|
| 34 | assertTrue(countingStream.read() != -1); |
---|
| 35 | assertEquals(1, countingStream.getPosition()); |
---|
| 36 | byte[] tmp = new byte[3]; |
---|
| 37 | assertEquals(3, countingStream.read(tmp)); |
---|
| 38 | assertEquals(4, countingStream.getPosition()); |
---|
| 39 | assertEquals(2, countingStream.skip(2)); |
---|
| 40 | assertEquals(6, countingStream.getPosition()); |
---|
| 41 | assertTrue(countingStream.read() != -1); |
---|
| 42 | assertEquals(7, countingStream.getPosition()); |
---|
| 43 | assertTrue(countingStream.read() == -1); |
---|
| 44 | assertEquals(7, countingStream.getPosition()); |
---|
| 45 | assertTrue(countingStream.read() == -1); |
---|
| 46 | assertEquals(7, countingStream.getPosition()); |
---|
| 47 | assertTrue(countingStream.read(tmp) == -1); |
---|
| 48 | assertEquals(7, countingStream.getPosition()); |
---|
| 49 | assertTrue(countingStream.read(tmp) == -1); |
---|
| 50 | assertEquals(7, countingStream.getPosition()); |
---|
| 51 | } |
---|
| 52 | |
---|
| 53 | } |
---|