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/*
* 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.input;
import static org.junit.jupiter.api.Assertions.assertArrayEquals;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNotEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.nio.charset.StandardCharsets;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardOpenOption;
import org.apache.commons.io.RandomAccessFileMode;
import org.junit.jupiter.api.Test;
public class RandomAccessFileInputStreamTest {
private static final String DATA_FILE_NAME = "src/test/resources/org/apache/commons/io/test-file-iso8859-1.bin";
private static final Path DATA_PATH = Paths.get(DATA_FILE_NAME);
private static final int DATA_FILE_LEN = 1430;
private RandomAccessFile createRandomAccessFile() throws FileNotFoundException {
return RandomAccessFileMode.READ_ONLY.create(DATA_FILE_NAME);
}
@Test
public void testAvailable() throws IOException {
try (RandomAccessFileInputStream inputStream = new RandomAccessFileInputStream(createRandomAccessFile(),
true)) {
assertEquals(DATA_FILE_LEN, inputStream.available());
}
}
@Test
public void testAvailableLong() throws IOException {
try (RandomAccessFileInputStream inputStream = new RandomAccessFileInputStream(createRandomAccessFile(),
true)) {
assertEquals(DATA_FILE_LEN, inputStream.availableLong());
}
}
@SuppressWarnings("resource") // instance variable access
@Test
public void testBuilderFile() throws IOException {
try (RandomAccessFile file = createRandomAccessFile()) {
try (RandomAccessFileInputStream inputStream = RandomAccessFileInputStream.builder().setFile(new File(DATA_FILE_NAME)).get()) {
assertFalse(inputStream.isCloseOnClose());
assertNotEquals(-1, inputStream.getRandomAccessFile().read());
}
file.read();
}
}
@Test
public void testBuilderGet() {
// java.lang.IllegalStateException: origin == null
assertThrows(IllegalStateException.class, () -> RandomAccessFileInputStream.builder().get());
}
@SuppressWarnings("resource") // instance variable access
@Test
public void testBuilderPath() throws IOException {
try (RandomAccessFile file = createRandomAccessFile()) {
try (RandomAccessFileInputStream inputStream = RandomAccessFileInputStream.builder().setPath(DATA_PATH).get()) {
assertFalse(inputStream.isCloseOnClose());
assertNotEquals(-1, inputStream.getRandomAccessFile().read());
}
file.read();
}
}
@SuppressWarnings("resource") // instance variable access
@Test
public void testBuilderPathOpenOptions() throws IOException {
try (RandomAccessFile file = createRandomAccessFile()) {
try (RandomAccessFileInputStream inputStream = RandomAccessFileInputStream.builder().setPath(DATA_PATH).setOpenOptions(StandardOpenOption.READ)
.get()) {
assertFalse(inputStream.isCloseOnClose());
assertNotEquals(-1, inputStream.getRandomAccessFile().read());
}
file.read();
}
}
@SuppressWarnings("resource") // instance variable access
@Test
public void testBuilderRandomAccessFile() throws IOException {
try (RandomAccessFile file = createRandomAccessFile()) {
try (RandomAccessFileInputStream inputStream = RandomAccessFileInputStream.builder().setRandomAccessFile(file).get()) {
assertFalse(inputStream.isCloseOnClose());
assertNotEquals(-1, inputStream.getRandomAccessFile().read());
}
file.read();
}
}
@SuppressWarnings("resource") // instance variable access
@Test
public void testConstructorCloseOnCloseFalse() throws IOException {
try (RandomAccessFile file = createRandomAccessFile()) {
try (RandomAccessFileInputStream inputStream = new RandomAccessFileInputStream(file, false)) {
assertFalse(inputStream.isCloseOnClose());
assertNotEquals(-1, inputStream.getRandomAccessFile().read());
}
file.read();
}
}
@SuppressWarnings("resource") // instance variable access
@Test
public void testConstructorCloseOnCloseTrue() throws IOException {
try (RandomAccessFile file = createRandomAccessFile()) {
try (RandomAccessFileInputStream inputStream = new RandomAccessFileInputStream(file, true)) {
assertTrue(inputStream.isCloseOnClose());
assertNotEquals(-1, inputStream.getRandomAccessFile().read());
}
assertThrows(IOException.class, file::read);
}
}
@SuppressWarnings("resource") // instance variable access
@Test
public void testConstructorRandomAccessFile() throws IOException {
try (RandomAccessFile file = createRandomAccessFile()) {
try (RandomAccessFileInputStream inputStream = new RandomAccessFileInputStream(file)) {
assertFalse(inputStream.isCloseOnClose());
assertNotEquals(-1, inputStream.getRandomAccessFile().read());
}
file.read();
}
}
@Test
public void testConstructorRandomAccessFileNull() {
assertThrows(NullPointerException.class, () -> new RandomAccessFileInputStream(null));
}
@Test
public void testGetters() throws IOException {
try (RandomAccessFile file = createRandomAccessFile()) {
try (RandomAccessFileInputStream inputStream = new RandomAccessFileInputStream(file, true)) {
assertEquals(file, inputStream.getRandomAccessFile());
assertTrue(inputStream.isCloseOnClose());
}
}
}
@Test
public void testRead() throws IOException {
try (RandomAccessFileInputStream inputStream = new RandomAccessFileInputStream(createRandomAccessFile(),
true)) {
// A Test Line.
assertEquals('A', inputStream.read());
assertEquals(' ', inputStream.read());
assertEquals('T', inputStream.read());
assertEquals('e', inputStream.read());
assertEquals('s', inputStream.read());
assertEquals('t', inputStream.read());
assertEquals(' ', inputStream.read());
assertEquals('L', inputStream.read());
assertEquals('i', inputStream.read());
assertEquals('n', inputStream.read());
assertEquals('e', inputStream.read());
assertEquals('.', inputStream.read());
assertEquals(DATA_FILE_LEN - 12, inputStream.available());
assertEquals(DATA_FILE_LEN - 12, inputStream.availableLong());
}
}
@Test
public void testReadByteArray() throws IOException {
try (RandomAccessFileInputStream inputStream = new RandomAccessFileInputStream(createRandomAccessFile(),
true)) {
// A Test Line.
final int dataLen = 12;
final byte[] buffer = new byte[dataLen];
assertEquals(dataLen, inputStream.read(buffer));
assertArrayEquals("A Test Line.".getBytes(StandardCharsets.ISO_8859_1), buffer);
//
assertEquals(DATA_FILE_LEN - dataLen, inputStream.available());
assertEquals(DATA_FILE_LEN - dataLen, inputStream.availableLong());
}
}
@Test
public void testReadByteArrayBounds() throws IOException {
try (RandomAccessFileInputStream inputStream = new RandomAccessFileInputStream(createRandomAccessFile(),
true)) {
// A Test Line.
final int dataLen = 12;
final byte[] buffer = new byte[dataLen];
assertEquals(dataLen, inputStream.read(buffer, 0, dataLen));
assertArrayEquals("A Test Line.".getBytes(StandardCharsets.ISO_8859_1), buffer);
//
assertEquals(DATA_FILE_LEN - dataLen, inputStream.available());
assertEquals(DATA_FILE_LEN - dataLen, inputStream.availableLong());
}
}
@Test
public void testSkip() throws IOException {
try (RandomAccessFile file = createRandomAccessFile();
final RandomAccessFileInputStream inputStream = new RandomAccessFileInputStream(file, false)) {
assertEquals(0, inputStream.skip(-1));
assertEquals(0, inputStream.skip(Integer.MIN_VALUE));
assertEquals(0, inputStream.skip(0));
// A Test Line.
assertEquals('A', inputStream.read());
assertEquals(1, inputStream.skip(1));
assertEquals('T', inputStream.read());
assertEquals(1, inputStream.skip(1));
assertEquals('s', inputStream.read());
assertEquals(1, inputStream.skip(1));
assertEquals(' ', inputStream.read());
assertEquals(1, inputStream.skip(1));
assertEquals('i', inputStream.read());
assertEquals(1, inputStream.skip(1));
assertEquals('e', inputStream.read());
assertEquals(1, inputStream.skip(1));
//
assertEquals(DATA_FILE_LEN - 12, inputStream.available());
assertEquals(DATA_FILE_LEN - 12, inputStream.availableLong());
assertEquals(10, inputStream.skip(10));
assertEquals(DATA_FILE_LEN - 22, inputStream.availableLong());
//
final long avail = inputStream.availableLong();
assertEquals(avail, inputStream.skip(inputStream.availableLong()));
// At EOF
assertEquals(DATA_FILE_LEN, file.length());
assertEquals(DATA_FILE_LEN, file.getFilePointer());
//
assertEquals(0, inputStream.skip(1));
assertEquals(0, inputStream.skip(1000000000000L));
}
}
}