| /* |
| * 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.deflate64; |
| |
| import org.apache.commons.compress.compressors.CompressorStreamFactory; |
| import org.apache.commons.compress.utils.IOUtils; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.mockito.Mock; |
| import org.mockito.Mockito; |
| import org.mockito.runners.MockitoJUnitRunner; |
| |
| import java.io.BufferedReader; |
| import java.io.ByteArrayInputStream; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.mockito.Mockito.times; |
| |
| @RunWith(MockitoJUnitRunner.class) |
| public class Deflate64CompressorInputStreamTest { |
| private final HuffmanDecoder nullDecoder = null; |
| |
| @Mock |
| private HuffmanDecoder decoder; |
| |
| @Test |
| public void readWhenClosed() throws Exception { |
| Deflate64CompressorInputStream input = new Deflate64CompressorInputStream(nullDecoder); |
| assertEquals(-1, input.read()); |
| assertEquals(-1, input.read(new byte[1])); |
| assertEquals(-1, input.read(new byte[1], 0, 1)); |
| } |
| |
| @Test |
| public void properSizeWhenClosed() throws Exception { |
| Deflate64CompressorInputStream input = new Deflate64CompressorInputStream(nullDecoder); |
| assertEquals(0, input.available()); |
| } |
| |
| @Test |
| public void delegatesAvailable() throws Exception { |
| Mockito.when(decoder.available()).thenReturn(1024); |
| |
| Deflate64CompressorInputStream input = new Deflate64CompressorInputStream(decoder); |
| assertEquals(1024, input.available()); |
| } |
| |
| @Test |
| public void closeCallsDecoder() throws Exception { |
| |
| Deflate64CompressorInputStream input = new Deflate64CompressorInputStream(decoder); |
| input.close(); |
| |
| Mockito.verify(decoder, times(1)).close(); |
| } |
| |
| @Test |
| public void closeIsDelegatedJustOnce() throws Exception { |
| |
| Deflate64CompressorInputStream input = new Deflate64CompressorInputStream(decoder); |
| |
| input.close(); |
| input.close(); |
| |
| Mockito.verify(decoder, times(1)).close(); |
| } |
| |
| @Test |
| public void uncompressedBlock() throws Exception { |
| byte[] data = { |
| 1, 11, 0, -12, -1, |
| 'H', 'e', 'l', 'l', 'o', ' ', 'W', 'o', 'r', 'l', 'd' |
| }; |
| |
| try (Deflate64CompressorInputStream input = new Deflate64CompressorInputStream(new ByteArrayInputStream(data)); |
| BufferedReader br = new BufferedReader(new InputStreamReader(input))) { |
| assertEquals("Hello World", br.readLine()); |
| assertEquals(null, br.readLine()); |
| } |
| } |
| |
| @Test |
| public void uncompressedBlockViaFactory() throws Exception { |
| byte[] data = { |
| 1, 11, 0, -12, -1, |
| 'H', 'e', 'l', 'l', 'o', ' ', 'W', 'o', 'r', 'l', 'd' |
| }; |
| |
| try (InputStream input = new CompressorStreamFactory() |
| .createCompressorInputStream(CompressorStreamFactory.DEFLATE64, new ByteArrayInputStream(data)); |
| BufferedReader br = new BufferedReader(new InputStreamReader(input))) { |
| assertEquals("Hello World", br.readLine()); |
| assertEquals(null, br.readLine()); |
| } |
| } |
| |
| @Test |
| public void uncompressedBlockAvailable() throws Exception { |
| byte[] data = { |
| 1, 11, 0, -12, -1, |
| 'H', 'e', 'l', 'l', 'o', ' ', 'W', 'o', 'r', 'l', 'd' |
| }; |
| |
| try (Deflate64CompressorInputStream input = new Deflate64CompressorInputStream(new ByteArrayInputStream(data))) { |
| assertEquals('H', input.read()); |
| assertEquals(10, input.available()); |
| } |
| } |
| |
| @Test |
| public void streamIgnoresExtraBytesAfterDeflatedInput() throws Exception |
| { |
| byte[] data = { |
| 1, 11, 0, -12, -1, |
| 'H', 'e', 'l', 'l', 'o', ' ', 'W', 'o', 'r', 'l', 'd', 'X' |
| }; |
| |
| try (Deflate64CompressorInputStream input = new Deflate64CompressorInputStream(new ByteArrayInputStream(data)); |
| BufferedReader br = new BufferedReader(new InputStreamReader(input))) { |
| assertEquals("Hello World", br.readLine()); |
| assertEquals(null, br.readLine()); |
| } |
| } |
| |
| @Test(expected = java.io.EOFException.class) |
| public void throwsEOFExceptionOnTruncatedStreams() throws Exception |
| { |
| byte[] data = { |
| 1, 11, 0, -12, -1, |
| 'H', 'e', 'l', 'l', 'o', ' ', 'W', 'o', 'r', 'l', |
| }; |
| |
| try (Deflate64CompressorInputStream input = new Deflate64CompressorInputStream(new ByteArrayInputStream(data)); |
| BufferedReader br = new BufferedReader(new InputStreamReader(input))) { |
| assertEquals("Hello World", br.readLine()); |
| } |
| } |
| |
| @Test |
| public void singleByteReadConsistentlyReturnsMinusOneAtEof() throws Exception { |
| try (final Deflate64CompressorInputStream in = |
| new Deflate64CompressorInputStream(nullDecoder)) { |
| IOUtils.toByteArray(in); |
| assertEquals(-1, in.read()); |
| assertEquals(-1, in.read()); |
| in.close(); |
| } |
| } |
| |
| @Test |
| public void multiByteReadConsistentlyReturnsMinusOneAtEof() throws Exception { |
| byte[] buf = new byte[2]; |
| try (final Deflate64CompressorInputStream in = |
| new Deflate64CompressorInputStream(nullDecoder)) { |
| IOUtils.toByteArray(in); |
| assertEquals(-1, in.read(buf)); |
| assertEquals(-1, in.read(buf)); |
| in.close(); |
| } |
| } |
| |
| } |