| /* |
| * 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.commons.compress.compressors.deflate; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| import org.apache.commons.compress.AbstractTestCase; |
| import org.apache.commons.compress.utils.IOUtils; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| public class DeflateCompressorInputStreamTest { |
| |
| @Test |
| public void availableShouldReturnNonZero() throws IOException { |
| final File input = AbstractTestCase.getFile("bla.tar.deflatez"); |
| try (InputStream is = new FileInputStream(input)) { |
| final DeflateCompressorInputStream in = |
| new DeflateCompressorInputStream(is); |
| Assert.assertTrue(in.available() > 0); |
| in.close(); |
| } |
| } |
| |
| @Test |
| public void shouldBeAbleToSkipAByte() throws IOException { |
| final File input = AbstractTestCase.getFile("bla.tar.deflatez"); |
| try (InputStream is = new FileInputStream(input)) { |
| final DeflateCompressorInputStream in = |
| new DeflateCompressorInputStream(is); |
| Assert.assertEquals(1, in.skip(1)); |
| in.close(); |
| } |
| } |
| |
| @Test |
| public void singleByteReadWorksAsExpected() throws IOException { |
| final File input = AbstractTestCase.getFile("bla.tar.deflatez"); |
| try (InputStream is = new FileInputStream(input)) { |
| final DeflateCompressorInputStream in = |
| new DeflateCompressorInputStream(is); |
| // tar header starts with filename "test1.xml" |
| Assert.assertEquals('t', in.read()); |
| in.close(); |
| } |
| } |
| |
| @Test |
| public void singleByteReadReturnsMinusOneAtEof() throws IOException { |
| final File input = AbstractTestCase.getFile("bla.tar.deflatez"); |
| try (InputStream is = new FileInputStream(input)) { |
| final DeflateCompressorInputStream in = |
| new DeflateCompressorInputStream(is); |
| IOUtils.toByteArray(in); |
| Assert.assertEquals(-1, in.read()); |
| in.close(); |
| } |
| } |
| |
| } |