| /* |
| * 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.wayang.core.util; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.IOException; |
| |
| /** |
| * Test suite for the {@link LimitedInputStream}. |
| */ |
| public class LimitedInputStreamTest { |
| |
| @Test |
| public void testLimitation() throws IOException { |
| // Generate test data. |
| byte[] testData = new byte[(int) Byte.MAX_VALUE + 1]; |
| for (int b = 0; b <= Byte.MAX_VALUE; b++) { |
| testData[b] = (byte) b; |
| } |
| |
| ByteArrayInputStream bais = new ByteArrayInputStream(testData); |
| |
| final int limit = 42; |
| LimitedInputStream lis = new LimitedInputStream(bais, limit); |
| |
| for (int i = 0; i < limit; i++) { |
| Assert.assertEquals(i, lis.getNumReadBytes()); |
| Assert.assertEquals(i, lis.read()); |
| } |
| Assert.assertEquals(42, lis.getNumReadBytes()); |
| Assert.assertEquals(-1, lis.read()); |
| Assert.assertEquals(42, lis.getNumReadBytes()); |
| } |
| |
| } |