| /* |
| |
| Derby - Class org.apache.derbyTesting.unitTests.junit.InputStreamUtilTest |
| |
| 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.derbyTesting.unitTests.junit; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.EOFException; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import junit.framework.Test; |
| import org.apache.derby.iapi.services.io.InputStreamUtil; |
| import org.apache.derbyTesting.junit.BaseTestCase; |
| import org.apache.derbyTesting.junit.BaseTestSuite; |
| |
| /** |
| * Test case for InputStreamUtil. |
| */ |
| public class InputStreamUtilTest extends BaseTestCase { |
| |
| public InputStreamUtilTest(String name) { |
| super(name); |
| } |
| |
| public void testNullStream() throws IOException{ |
| try{ |
| InputStreamUtil.skipUntilEOF(null); |
| fail("Null InputStream is accepted!"); |
| }catch (NullPointerException e) { |
| assertTrue(true); |
| } |
| |
| try{ |
| InputStreamUtil.skipFully(null, 0); |
| fail("Null InputStream is accepted!"); |
| }catch (NullPointerException e) { |
| assertTrue(true); |
| } |
| } |
| |
| public void testSkipUtilEOFWithOddLength() throws IOException{ |
| int[] lengths = {0, 1}; |
| |
| for(int i = 0; i < lengths.length; i++){ |
| int length = lengths[i]; |
| InputStream is = new ByteArrayInputStream(new byte[length]); |
| assertEquals(length, InputStreamUtil.skipUntilEOF(is)); |
| } |
| } |
| |
| public void testSkipUtilEOF() throws IOException{ |
| int[] lengths = {1024, 1024 * 1024}; |
| |
| for(int i = 0; i < lengths.length; i++){ |
| int length = lengths[i]; |
| InputStream is = new ByteArrayInputStream(new byte[length]); |
| assertEquals(length, InputStreamUtil.skipUntilEOF(is)); |
| } |
| } |
| |
| public void testSkipFully() throws IOException{ |
| int length = 1024; |
| |
| InputStream is = new ByteArrayInputStream(new byte[length]); |
| InputStreamUtil.skipFully(is, length); |
| assertEquals(0, InputStreamUtil.skipUntilEOF(is)); |
| |
| is = new ByteArrayInputStream(new byte[length]); |
| InputStreamUtil.skipFully(is, length - 1); |
| assertEquals(1, InputStreamUtil.skipUntilEOF(is)); |
| |
| is = new ByteArrayInputStream(new byte[length]); |
| try { |
| InputStreamUtil.skipFully(is, length + 1); |
| fail("Should have Meet EOF!"); |
| } catch (EOFException e) { |
| assertTrue(true); |
| } |
| assertEquals(0, InputStreamUtil.skipUntilEOF(is)); |
| } |
| |
| /** |
| * Returns a suite of tests. |
| */ |
| public static Test suite() { |
| return new BaseTestSuite( |
| InputStreamUtilTest.class, "InputStreamUtil tests"); |
| } |
| } |