| /* |
| * 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.io.output; |
| |
| import static org.junit.jupiter.api.Assertions.assertArrayEquals; |
| import static org.junit.jupiter.api.Assertions.assertEquals; |
| import static org.junit.jupiter.api.Assertions.assertThrows; |
| |
| import java.io.IOException; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| import org.apache.commons.io.IOUtils; |
| import org.apache.commons.io.file.TempFile; |
| import org.apache.commons.lang3.ArrayFill; |
| import org.junit.jupiter.api.Test; |
| |
| /** |
| * Tests {@link ChunkedOutputStream}. |
| */ |
| public class ChunkedOutputStreamTest { |
| |
| private ByteArrayOutputStream newByteArrayOutputStream(final AtomicInteger numWrites) { |
| return new ByteArrayOutputStream() { |
| @Override |
| public void write(final byte[] b, final int off, final int len) { |
| numWrites.incrementAndGet(); |
| super.write(b, off, len); |
| } |
| }; |
| } |
| |
| /** |
| * Tests the default chunk size with a ByteArrayOutputStream. |
| * |
| * @throws IOException |
| */ |
| @Test |
| public void testBuildSetByteArrayOutputStream() throws IOException { |
| final AtomicInteger numWrites = new AtomicInteger(); |
| try (ByteArrayOutputStream baos = newByteArrayOutputStream(numWrites); |
| final ChunkedOutputStream chunked = ChunkedOutputStream.builder().setOutputStream(baos).get()) { |
| chunked.write(new byte[IOUtils.DEFAULT_BUFFER_SIZE + 1]); |
| assertEquals(2, numWrites.get()); |
| } |
| assertThrows(IllegalStateException.class, () -> ChunkedOutputStream.builder().get()); |
| } |
| |
| /** |
| * Tests the default chunk size with a Path. |
| * |
| * @throws IOException |
| */ |
| @Test |
| public void testBuildSetPath() throws IOException { |
| try (TempFile tempFile = TempFile.create("test-", ".txt")) { |
| final byte[] fill = ArrayFill.fill(new byte[IOUtils.DEFAULT_BUFFER_SIZE + 1], (byte) 'a'); |
| final Path tempPath = tempFile.get(); |
| try (ChunkedOutputStream chunked = ChunkedOutputStream.builder().setPath(tempPath).get()) { |
| chunked.write(fill); |
| } |
| assertArrayEquals(fill, Files.readAllBytes(tempPath)); |
| } |
| } |
| |
| @Test |
| public void testDefaultConstructor() throws IOException { |
| final AtomicInteger numWrites = new AtomicInteger(); |
| try (ByteArrayOutputStream baos = newByteArrayOutputStream(numWrites); |
| final ChunkedOutputStream chunked = new ChunkedOutputStream(baos)) { |
| chunked.write(new byte[IOUtils.DEFAULT_BUFFER_SIZE + 1]); |
| assertEquals(2, numWrites.get()); |
| } |
| } |
| |
| @Test |
| public void testNegativeChunkSize() throws IOException { |
| assertThrows(IllegalArgumentException.class, () -> new ChunkedOutputStream(new ByteArrayOutputStream(), -1)); |
| // Builder resets invalid input to the default. |
| try (ChunkedOutputStream os = ChunkedOutputStream.builder().setOutputStream(new ByteArrayOutputStream()).setBufferSize(-1).get()) { |
| assertEquals(IOUtils.DEFAULT_BUFFER_SIZE, os.getChunkSize()); |
| } |
| } |
| |
| @Test |
| public void testWriteFourChunks() throws Exception { |
| final AtomicInteger numWrites = new AtomicInteger(); |
| try (ByteArrayOutputStream baos = newByteArrayOutputStream(numWrites); |
| final ChunkedOutputStream chunked = new ChunkedOutputStream(baos, 10)) { |
| chunked.write("0123456789012345678901234567891".getBytes()); |
| assertEquals(4, numWrites.get()); |
| } |
| } |
| |
| @Test |
| public void testZeroChunkSize() throws IOException { |
| assertThrows(IllegalArgumentException.class, () -> new ChunkedOutputStream(new ByteArrayOutputStream(), 0)); |
| // Builder resets invalid input to the default. |
| try (ChunkedOutputStream os = ChunkedOutputStream.builder().setOutputStream(new ByteArrayOutputStream()).setBufferSize(0).get()) { |
| assertEquals(IOUtils.DEFAULT_BUFFER_SIZE, os.getChunkSize()); |
| } |
| } |
| |
| } |