/*
* 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 libcore.java.io;
import java.io.EOFException;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.nio.channels.FileChannel;
import java.nio.channels.NonWritableChannelException;
public class OldRandomAccessFileTest extends junit.framework.TestCase {
public String fileName;
public boolean ufile = true;
java.io.RandomAccessFile raf;
java.io.File f;
String unihw = "\u0048\u0065\u006C\u0801\u006C\u006F\u0020\u0057\u0081\u006F\u0072\u006C\u0064";
static final String testString = "Lorem ipsum dolor sit amet,\n" +
"consectetur adipisicing elit,\nsed do eiusmod tempor incididunt ut" +
"labore et dolore magna aliqua.\n";
static final int testLength = testString.length();
/**
* java.io.RandomAccessFile#RandomAccessFile(java.io.File,
* java.lang.String)
*/
public void test_ConstructorLjava_io_FileLjava_lang_String() throws Exception {
RandomAccessFile raf = null;
File tmpFile = new File(fileName);
try {
raf = new java.io.RandomAccessFile(tmpFile, "r");
fail("Test 1: FileNotFoundException expected.");
} catch (FileNotFoundException e) {
// Expected.
} catch (IllegalArgumentException e) {
fail("Test 2: Unexpected IllegalArgumentException: " + e.getMessage());
}
tmpFile.createNewFile();
try {
// Checking the remaining valid mode parameters.
try {
raf = new java.io.RandomAccessFile(tmpFile, "rwd");
} catch (IllegalArgumentException e) {
fail("Test 3: Unexpected IllegalArgumentException: " + e.getMessage());
}
raf.close();
try {
raf = new java.io.RandomAccessFile(tmpFile, "rws");
} catch (IllegalArgumentException e) {
fail("Test 4: Unexpected IllegalArgumentException: " + e.getMessage());
}
raf.close();
try {
raf = new java.io.RandomAccessFile(tmpFile, "rw");
} catch (IllegalArgumentException e) {
fail("Test 5: Unexpected IllegalArgumentException: " + e.getMessage());
}
raf.close();
// Checking an invalid mode parameter.
try {
raf = new java.io.RandomAccessFile(tmpFile, "i");
fail("Test 6: IllegalArgumentException expected.");
} catch (IllegalArgumentException e) {
// Expected.
}
} finally {
if (raf != null ) raf.close();
tmpFile.delete();
}
}
/**
* java.io.RandomAccessFile#RandomAccessFile(java.lang.String,
* java.lang.String)
*/
public void test_ConstructorLjava_lang_StringLjava_lang_String()
throws IOException {
RandomAccessFile raf = null;
File tmpFile = new File(fileName);
try {
raf = new java.io.RandomAccessFile(fileName, "r");
fail("Test 1: FileNotFoundException expected.");
} catch (FileNotFoundException e) {
// Expected.
} catch (IllegalArgumentException e) {
fail("Test 2: Unexpected IllegalArgumentException: " + e.getMessage());
}
try {
// Checking the remaining valid mode parameters.
try {
raf = new java.io.RandomAccessFile(fileName, "rwd");
} catch (IllegalArgumentException e) {
fail("Test 3: Unexpected IllegalArgumentException: " + e.getMessage());
}
raf.close();
try {
raf = new java.io.RandomAccessFile(fileName, "rws");
} catch (IllegalArgumentException e) {
fail("Test 4: Unexpected IllegalArgumentException: " + e.getMessage());
}
raf.close();
try {
raf = new java.io.RandomAccessFile(fileName, "rw");
} catch (IllegalArgumentException e) {
fail("Test 5: Unexpected IllegalArgumentException: " + e.getMessage());
}
raf.close();
// Checking an invalid mode parameter.
try {
raf = new java.io.RandomAccessFile(fileName, "i");
fail("Test 6: IllegalArgumentException expected.");
} catch (IllegalArgumentException e) {
// Expected.
}
// Checking for NoWritableChannelException.
raf = new java.io.RandomAccessFile(fileName, "r");
FileChannel fcr = raf.getChannel();
try {
fcr.lock(0L, Long.MAX_VALUE, false);
fail("Test 7: NonWritableChannelException expected.");
} catch (NonWritableChannelException e) {
// Expected.
}
} finally {
if (raf != null ) raf.close();
if (tmpFile.exists()) tmpFile.delete();
}
}
/**
* java.io.RandomAccessFile#close()
*/
public void test_close() {
// Test for method void java.io.RandomAccessFile.close()
try {
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
raf.close();
raf.write("Test".getBytes(), 0, 4);
fail("Failed to close file properly.");
} catch (IOException e) {}
}
/**
* java.io.RandomAccessFile#getChannel()
*/
public void test_getChannel() throws IOException {
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
FileChannel fc = raf.getChannel();
// Indirect test: If the file's file pointer moves then the position
// in the channel has to move accordingly.
assertTrue("Test 1: Channel position expected to be 0.", fc.position() == 0);
raf.write(testString.getBytes());
assertEquals("Test 2: Unexpected channel position.",
testLength, fc.position());
assertTrue("Test 3: Channel position is not equal to file pointer.",
fc.position() == raf.getFilePointer());
raf.close();
}
/**
* java.io.RandomAccessFile#getFD()
*/
public void test_getFD() throws IOException {
// Test for method java.io.FileDescriptor
// java.io.RandomAccessFile.getFD()
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
assertTrue("Test 1: Returned invalid fd.", raf.getFD().valid());
raf.close();
assertFalse("Test 2: Returned valid fd after close", raf.getFD().valid());
}
/**
* java.io.RandomAccessFile#getFilePointer()
*/
public void test_getFilePointer() throws IOException {
// Test for method long java.io.RandomAccessFile.getFilePointer()
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
raf.write(testString.getBytes(), 0, testLength);
assertEquals("Test 1: Incorrect filePointer returned. ", testLength, raf
.getFilePointer());
raf.close();
try {
raf.getFilePointer();
fail("Test 2: IOException expected.");
} catch (IOException e) {
// Expected.
}
}
/**
* java.io.RandomAccessFile#length()
*/
public void test_length() throws IOException {
// Test for method long java.io.RandomAccessFile.length()
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
raf.write(testString.getBytes());
assertEquals("Test 1: Incorrect length returned. ", testLength,
raf.length());
raf.close();
try {
raf.length();
fail("Test 2: IOException expected.");
} catch (IOException e) {
// Expected.
}
}
/**
* java.io.RandomAccessFile#read()
*/
public void test_read_write() throws IOException {
int i;
byte[] testBuf = testString.getBytes();
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
for (i = 0; i < testString.length(); i++) {
try {
raf.write(testBuf[i]);
} catch (Exception e) {
fail("Test 1: Unexpected exception while writing: "
+ e.getMessage());
}
}
raf.seek(0);
for (i = 0; i < testString.length(); i++) {
assertEquals(String.format("Test 2: Incorrect value written or read at index %d; ", i),
testBuf[i], raf.read());
}
assertTrue("Test 3: End of file indicator (-1) expected.", raf.read() == -1);
raf.close();
try {
raf.write(42);
fail("Test 4: IOException expected.");
} catch (IOException e) {
// Expected.
}
try {
raf.read();
fail("Test 5: IOException expected.");
} catch (IOException e) {
// Expected.
}
}
/**
* java.io.RandomAccessFile#read(byte[])
*/
public void test_read$B() throws IOException {
FileOutputStream fos = new java.io.FileOutputStream(fileName);
fos.write(testString.getBytes(), 0, testLength);
fos.close();
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "r");
byte[] rbuf = new byte[testLength + 10];
int bytesRead = raf.read(rbuf);
assertEquals("Test 1: Incorrect number of bytes read. ",
testLength, bytesRead);
assertEquals("Test 2: Incorrect bytes read. ", testString,
new String(rbuf, 0, testLength));
bytesRead = raf.read(rbuf);
assertTrue("Test 3: EOF (-1) expected. ", bytesRead == -1);
raf.close();
try {
bytesRead = raf.read(rbuf);
fail("Test 4: IOException expected.");
} catch (IOException e) {
// Expected.
}
}
/**
* java.io.RandomAccessFile#read(byte[], int, int)
*/
public void test_read$BII() throws IOException {
int bytesRead;
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
byte[] rbuf = new byte[4000];
FileOutputStream fos = new java.io.FileOutputStream(fileName);
fos.write(testString.getBytes(), 0, testLength);
fos.close();
// Read half of the file contents.
bytesRead = raf.read(rbuf, 10, testLength / 2);
assertEquals("Test 1: Incorrect number of bytes read. ",
testLength / 2, bytesRead);
assertEquals("Test 2: Incorrect bytes read. ",
testString.substring(0, testLength / 2),
new String(rbuf, 10, testLength / 2));
// Read the rest of the file contents.
bytesRead = raf.read(rbuf, 0, testLength);
assertEquals("Test 3: Incorrect number of bytes read. ",
testLength - (testLength / 2), bytesRead);
assertEquals("Test 4: Incorrect bytes read. ",
testString.substring(testLength / 2, (testLength / 2) + bytesRead),
new String(rbuf, 0, bytesRead));
// Try to read even more.
bytesRead = raf.read(rbuf, 0, 1);
assertTrue("Test 5: EOF (-1) expected. ", bytesRead == -1);
// Illegal parameter value tests.
try {
raf.read(rbuf, -1, 1);
fail("Test 6: IndexOutOfBoundsException expected.");
} catch (IndexOutOfBoundsException e) {
// Expected.
}
try {
raf.read(rbuf, 0, -1);
fail("Test 7: IndexOutOfBoundsException expected.");
} catch (IndexOutOfBoundsException e) {
// Expected.
}
try {
raf.read(rbuf, 2000, 2001);
fail("Test 8: IndexOutOfBoundsException expected.");
} catch (IndexOutOfBoundsException e) {
// Expected.
}
// IOException test.
raf.close();
try {
bytesRead = raf.read(rbuf, 0, 1);
fail("Test 9: IOException expected.");
} catch (IOException e) {
// Expected.
}
}
/**
* java.io.RandomAccessFile#readBoolean()
* java.io.RandomAccessFile#writeBoolean(boolean)
*/
public void test_read_writeBoolean() throws IOException {
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
raf.writeBoolean(true);
raf.writeBoolean(false);
raf.seek(0);
assertEquals("Test 1: Incorrect value written or read;",
true, raf.readBoolean());
assertEquals("Test 2: Incorrect value written or read;",
false, raf.readBoolean());
try {
raf.readBoolean();
fail("Test 3: EOFException expected.");
} catch (EOFException e) {
// Expected.
}
raf.close();
try {
raf.writeBoolean(false);
fail("Test 4: IOException expected.");
} catch (IOException e) {
// Expected.
}
try {
raf.readBoolean();
fail("Test 5: IOException expected.");
} catch (IOException e) {
// Expected.
}
}
/**
* java.io.RandomAccessFile#readByte()
* java.io.RandomAccessFile#writeByte(byte)
*/
public void test_read_writeByte() throws IOException {
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
raf.writeByte(Byte.MIN_VALUE);
raf.writeByte(11);
raf.writeByte(Byte.MAX_VALUE);
raf.writeByte(Byte.MIN_VALUE - 1);
raf.writeByte(Byte.MAX_VALUE + 1);
raf.seek(0);
assertEquals("Test 1: Incorrect value written or read;",
Byte.MIN_VALUE, raf.readByte());
assertEquals("Test 2: Incorrect value written or read;",
11, raf.readByte());
assertEquals("Test 3: Incorrect value written or read;",
Byte.MAX_VALUE, raf.readByte());
assertEquals("Test 4: Incorrect value written or read;",
127, raf.readByte());
assertEquals("Test 5: Incorrect value written or read;",
-128, raf.readByte());
try {
raf.readByte();
fail("Test 6: EOFException expected.");
} catch (EOFException e) {
// Expected.
}
raf.close();
try {
raf.writeByte(13);
fail("Test 7: IOException expected.");
} catch (IOException e) {
// Expected.
}
try {
raf.readByte();
fail("Test 8: IOException expected.");
} catch (IOException e) {
// Expected.
}
}
/**
* java.io.RandomAccessFile#readChar()
* java.io.RandomAccessFile#writeChar(char)
*/
public void test_read_writeChar() throws IOException {
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
raf.writeChar(Character.MIN_VALUE);
raf.writeChar('T');
raf.writeChar(Character.MAX_VALUE);
raf.writeChar(Character.MIN_VALUE - 1);
raf.writeChar(Character.MAX_VALUE + 1);
raf.seek(0);
assertEquals("Test 1: Incorrect value written or read;",
Character.MIN_VALUE, raf.readChar());
assertEquals("Test 2: Incorrect value written or read;",
'T', raf.readChar());
assertEquals("Test 3: Incorrect value written or read;",
Character.MAX_VALUE, raf.readChar());
assertEquals("Test 4: Incorrect value written or read;",
0xffff, raf.readChar());
assertEquals("Test 5: Incorrect value written or read;",
0, raf.readChar());
try {
raf.readChar();
fail("Test 6: EOFException expected.");
} catch (EOFException e) {
// Expected.
}
raf.close();
try {
raf.writeChar('E');
fail("Test 7: IOException expected.");
} catch (IOException e) {
// Expected.
}
try {
raf.readChar();
fail("Test 8: IOException expected.");
} catch (IOException e) {
// Expected.
}
}
/**
* java.io.RandomAccessFile#readDouble()
* java.io.RandomAccessFile#writeDouble(double)
*/
public void test_read_writeDouble() throws IOException {
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
raf.writeDouble(Double.MAX_VALUE);
raf.writeDouble(424242.4242);
raf.seek(0);
assertEquals("Test 1: Incorrect value written or read;",
Double.MAX_VALUE, raf.readDouble());
assertEquals("Test 2: Incorrect value written or read;",
424242.4242, raf.readDouble());
try {
raf.readDouble();
fail("Test 3: EOFException expected.");
} catch (EOFException e) {
// Expected.
}
raf.close();
try {
raf.writeDouble(Double.MIN_VALUE);
fail("Test 4: IOException expected.");
} catch (IOException e) {
// Expected.
}
try {
raf.readDouble();
fail("Test 5: IOException expected.");
} catch (IOException e) {
// Expected.
}
}
/**
* java.io.RandomAccessFile#readFloat()
* java.io.RandomAccessFile#writeFloat(double)
*/
public void test_read_writeFloat() throws IOException {
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
raf.writeFloat(Float.MAX_VALUE);
raf.writeFloat(555.55f);
raf.seek(0);
assertEquals("Test 1: Incorrect value written or read. ",
Float.MAX_VALUE, raf.readFloat());
assertEquals("Test 2: Incorrect value written or read. ",
555.55f, raf.readFloat());
try {
raf.readFloat();
fail("Test 3: EOFException expected.");
} catch (EOFException e) {
// Expected.
}
raf.close();
try {
raf.writeFloat(Float.MIN_VALUE);
fail("Test 4: IOException expected.");
} catch (IOException e) {
// Expected.
}
try {
raf.readFloat();
fail("Test 5: IOException expected.");
} catch (IOException e) {
// Expected.
}
}
/**
* java.io.RandomAccessFile#readInt()
* java.io.RandomAccessFile#writeInt(char)
*/
public void test_read_writeInt() throws IOException {
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
raf.writeInt(Integer.MIN_VALUE);
raf.writeInt('T');
raf.writeInt(Integer.MAX_VALUE);
raf.writeInt(Integer.MIN_VALUE - 1);
raf.writeInt(Integer.MAX_VALUE + 1);
raf.seek(0);
assertEquals("Test 1: Incorrect value written or read;",
Integer.MIN_VALUE, raf.readInt());
assertEquals("Test 2: Incorrect value written or read;",
'T', raf.readInt());
assertEquals("Test 3: Incorrect value written or read;",
Integer.MAX_VALUE, raf.readInt());
assertEquals("Test 4: Incorrect value written or read;",
0x7fffffff, raf.readInt());
assertEquals("Test 5: Incorrect value written or read;",
0x80000000, raf.readInt());
try {
raf.readInt();
fail("Test 6: EOFException expected.");
} catch (EOFException e) {
// Expected.
}
raf.close();
try {
raf.writeInt('E');
fail("Test 7: IOException expected.");
} catch (IOException e) {
// Expected.
}
try {
raf.readInt();
fail("Test 8: IOException expected.");
} catch (IOException e) {
// Expected.
}
}
/**
* java.io.RandomAccessFile#readLong()
* java.io.RandomAccessFile#writeLong(char)
*/
public void test_read_writeLong() throws IOException {
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
raf.writeLong(Long.MIN_VALUE);
raf.writeLong('T');
raf.writeLong(Long.MAX_VALUE);
raf.writeLong(Long.MIN_VALUE - 1);
raf.writeLong(Long.MAX_VALUE + 1);
raf.seek(0);
assertEquals("Test 1: Incorrect value written or read;",
Long.MIN_VALUE, raf.readLong());
assertEquals("Test 2: Incorrect value written or read;",
'T', raf.readLong());
assertEquals("Test 3: Incorrect value written or read;",
Long.MAX_VALUE, raf.readLong());
assertEquals("Test 4: Incorrect value written or read;",
0x7fffffffffffffffl, raf.readLong());
assertEquals("Test 5: Incorrect value written or read;",
0x8000000000000000l, raf.readLong());
try {
raf.readLong();
fail("Test 6: EOFException expected.");
} catch (EOFException e) {
// Expected.
}
raf.close();
try {
raf.writeLong('E');
fail("Test 7: IOException expected.");
} catch (IOException e) {
// Expected.
}
try {
raf.readLong();
fail("Test 8: IOException expected.");
} catch (IOException e) {
// Expected.
}
}
/**
* java.io.RandomAccessFile#readShort()
* java.io.RandomAccessFile#writeShort(short)
*/
public void test_read_writeShort() throws IOException {
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
raf.writeShort(Short.MIN_VALUE);
raf.writeShort('T');
raf.writeShort(Short.MAX_VALUE);
raf.writeShort(Short.MIN_VALUE - 1);
raf.writeShort(Short.MAX_VALUE + 1);
raf.seek(0);
assertEquals("Test 1: Incorrect value written or read;",
Short.MIN_VALUE, raf.readShort());
assertEquals("Test 2: Incorrect value written or read;",
'T', raf.readShort());
assertEquals("Test 3: Incorrect value written or read;",
Short.MAX_VALUE, raf.readShort());
assertEquals("Test 4: Incorrect value written or read;",
0x7fff, raf.readShort());
assertEquals("Test 5: Incorrect value written or read;",
(short) 0x8000, raf.readShort());
try {
raf.readShort();
fail("Test 6: EOFException expected.");
} catch (EOFException e) {
// Expected.
}
raf.close();
try {
raf.writeShort('E');
fail("Test 7: IOException expected.");
} catch (IOException e) {
// Expected.
}
try {
raf.readShort();
fail("Test 8: IOException expected.");
} catch (IOException e) {
// Expected.
}
}
/**
* java.io.RandomAccessFile#readUTF()
* java.io.RandomAccessFile#writeShort(char)
*/
public void test_read_writeUTF() throws IOException {
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
raf.writeUTF(unihw);
raf.seek(0);
assertEquals("Test 1: Incorrect UTF string written or read;",
unihw, raf.readUTF());
try {
raf.readUTF();
fail("Test 2: EOFException expected.");
} catch (EOFException e) {
// Expected.
}
raf.close();
try {
raf.writeUTF("Already closed.");
fail("Test 3: IOException expected.");
} catch (IOException e) {
// Expected.
}
try {
raf.readUTF();
fail("Test 4: IOException expected.");
} catch (IOException e) {
// Expected.
}
}
/**
* java.io.RandomAccessFile#writeBytes(java.lang.String)
* java.io.RandomAccessFile#readFully(byte[])
*/
public void test_readFully$B_writeBytesLjava_lang_String() throws IOException {
byte[] buf = new byte[testLength];
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
raf.writeBytes(testString);
raf.seek(0);
try {
raf.readFully(null);
fail("Test 1: NullPointerException expected.");
} catch (NullPointerException e) {
// Expected.
}
raf.readFully(buf);
assertEquals("Test 2: Incorrect bytes written or read;",
testString, new String(buf));
try {
raf.readFully(buf);
fail("Test 3: EOFException expected.");
} catch (EOFException e) {
// Expected.
}
raf.close();
try {
raf.writeBytes("Already closed.");
fail("Test 4: IOException expected.");
} catch (IOException e) {
// Expected.
}
try {
raf.readFully(buf);
fail("Test 5: IOException expected.");
} catch (IOException e) {
// Expected.
}
}
/**
* java.io.RandomAccessFile#writeBytes(java.lang.String)
* java.io.RandomAccessFile#readFully(byte[], int, int)
*/
public void test_readFully$BII() throws IOException {
byte[] buf = new byte[testLength];
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
raf.writeBytes(testString);
raf.seek(0);
try {
raf.readFully(null);
fail("Test 1: NullPointerException expected.");
} catch (NullPointerException e) {
// Expected.
}
raf.readFully(buf, 5, testLength - 10);
for (int i = 0; i < 5; i++) {
assertEquals("Test 2: Incorrect bytes read;", 0, buf[i]);
}
assertEquals("Test 3: Incorrect bytes written or read;",
testString.substring(0, testLength - 10),
new String(buf, 5, testLength - 10));
// Reading past the end of the file.
try {
raf.readFully(buf, 3, testLength - 6);
fail("Test 4: EOFException expected.");
} catch (EOFException e) {
// Expected.
}
// Passing invalid arguments.
try {
raf.readFully(buf, -1, 1);
fail("Test 5: IndexOutOfBoundsException expected.");
} catch (IndexOutOfBoundsException e) {
// Expected.
}
try {
raf.readFully(buf, 0, -1);
fail("Test 6: IndexOutOfBoundsException expected.");
} catch (IndexOutOfBoundsException e) {
// Expected.
}
try {
raf.readFully(buf, 2, testLength);
fail("Test 7: IndexOutOfBoundsException expected.");
} catch (IndexOutOfBoundsException e) {
// Expected.
}
// Reading from a closed file.
raf.close();
try {
raf.readFully(buf);
fail("Test 8: IOException expected.");
} catch (IOException e) {
// Expected.
}
}
/**
* java.io.RandomAccessFile#readUnsignedByte()
*/
public void test_readUnsignedByte() throws IOException {
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
raf.writeByte(-1);
raf.seek(0);
assertEquals("Test 1: Incorrect value written or read;",
255, raf.readUnsignedByte());
try {
raf.readUnsignedByte();
fail("Test 2: EOFException expected.");
} catch (EOFException e) {
// Expected.
}
raf.close();
try {
raf.readUnsignedByte();
fail("Test 3: IOException expected.");
} catch (IOException e) {
// Expected.
}
}
/**
* java.io.RandomAccessFile#readUnsignedShort()
*/
public void test_readUnsignedShort() throws IOException {
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
raf.writeShort(-1);
raf.seek(0);
assertEquals("Test 1: Incorrect value written or read;",
65535, raf.readUnsignedShort());
try {
raf.readUnsignedShort();
fail("Test 2: EOFException expected.");
} catch (EOFException e) {
// Expected.
}
raf.close();
try {
raf.readUnsignedShort();
fail("Test 3: IOException expected.");
} catch (IOException e) {
// Expected.
}
}
/**
* java.io.RandomAccessFile#readLine()
*/
public void test_readLine() throws IOException {
// Test for method java.lang.String java.io.RandomAccessFile.readLine()
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
String s = "Goodbye\nCruel\nWorld\n";
raf.write(s.getBytes(), 0, s.length());
raf.seek(0);
assertEquals("Test 1: Incorrect line read;", "Goodbye", raf.readLine());
assertEquals("Test 2: Incorrect line read;", "Cruel", raf.readLine());
assertEquals("Test 3: Incorrect line read;", "World", raf.readLine());
assertNull("Test 4: Incorrect line read; null expected.", raf.readLine());
raf.close();
try {
raf.readLine();
fail("Test 5: IOException expected.");
} catch (IOException e) {
// Expected.
}
}
/**
* java.io.RandomAccessFile#seek(long)
*/
public void test_seekJ() throws IOException {
// Test for method void java.io.RandomAccessFile.seek(long)
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
try {
raf.seek(-1);
fail("Test 1: IOException expected.");
} catch (IOException e) {
// Expected.
}
raf.write(testString.getBytes(), 0, testLength);
raf.seek(12);
assertEquals("Test 3: Seek failed to set file pointer.", 12,
raf.getFilePointer());
raf.close();
try {
raf.seek(1);
fail("Test 4: IOException expected.");
} catch (IOException e) {
// Expected.
}
}
/**
* java.io.RandomAccessFile#skipBytes(int)
*/
public void test_skipBytesI() throws IOException {
byte[] buf = new byte[5];
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
raf.writeBytes("HelloWorld");
raf.seek(0);
assertTrue("Test 1: Nothing should be skipped if parameter is less than zero",
raf.skipBytes(-1) == 0);
assertEquals("Test 4: Incorrect number of bytes skipped; ",
5, raf.skipBytes(5));
raf.readFully(buf);
assertEquals("Test 3: Failed to skip bytes.",
"World", new String(buf, 0, 5));
raf.seek(0);
assertEquals("Test 4: Incorrect number of bytes skipped; ",
10, raf.skipBytes(20));
raf.close();
try {
raf.skipBytes(1);
fail("Test 5: IOException expected.");
} catch (IOException e) {
// Expected.
}
}
/**
* java.io.RandomAccessFile#skipBytes(int)
*/
public void test_setLengthJ() throws IOException {
int bytesRead;
long truncLength = (long) (testLength * 0.75);
byte[] rbuf = new byte[testLength + 10];
// Setup the test file.
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
raf.write(testString.getBytes());
assertEquals("Test 1: Incorrect file length;",
testLength, raf.length());
// Truncate the file.
raf.setLength(truncLength);
assertTrue("Test 2: File pointer not moved to the end of the truncated file.",
raf.getFilePointer() == truncLength);
raf.close();
raf = new java.io.RandomAccessFile(fileName, "rw");
assertEquals("Test 3: Incorrect file length;",
truncLength, raf.length());
bytesRead = raf.read(rbuf);
assertEquals("Test 4: Incorrect number of bytes read;",
truncLength, bytesRead);
assertEquals("Test 5: Incorrect bytes read. ",
testString.substring(0, bytesRead),
new String(rbuf, 0, bytesRead));
// Expand the file.
raf.setLength(testLength + 2);
assertTrue("Test 6: File pointer incorrectly moved.",
raf.getFilePointer() == truncLength);
assertEquals("Test 7: Incorrect file length;",
testLength + 2, raf.length());
// Exception testing.
try {
raf.setLength(-1);
fail("Test 9: IllegalArgumentException expected.");
} catch (IOException expected) {
} catch (IllegalArgumentException expected) {
}
raf.close();
try {
raf.setLength(truncLength);
fail("Test 10: IOException expected.");
} catch (IOException e) {
// Expected.
}
}
/**
* java.io.RandomAccessFile#write(byte[])
*/
public void test_write$B() throws IOException {
byte[] rbuf = new byte[4000];
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
byte[] nullByteArray = null;
try {
raf.write(nullByteArray);
fail("Test 1: NullPointerException expected.");
} catch (NullPointerException e) {
// Expected.
}
try {
raf.write(testString.getBytes());
} catch (Exception e) {
fail("Test 2: Unexpected exception: " + e.getMessage());
}
raf.close();
try {
raf.write(new byte[0]);
} catch (IOException e) {
fail("Test 3: Unexpected IOException: " + e.getMessage());
}
try {
raf.write(testString.getBytes());
fail("Test 4: IOException expected.");
} catch (IOException e) {
// Expected.
}
FileInputStream fis = new java.io.FileInputStream(fileName);
fis.read(rbuf, 0, testLength);
assertEquals("Incorrect bytes written", testString, new String(rbuf, 0,
testLength));
}
/**
* java.io.RandomAccessFile#write(byte[], int, int)
*/
public void test_write$BII() throws Exception {
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
byte[] rbuf = new byte[4000];
byte[] testBuf = null;
int bytesRead;
try {
raf.write(testBuf, 1, 1);
fail("Test 1: NullPointerException expected.");
} catch (NullPointerException e) {
// Expected.
}
testBuf = testString.getBytes();
try {
raf.write(testBuf, -1, 10);
fail("Test 2: IndexOutOfBoundsException expected.");
} catch (IndexOutOfBoundsException expected) {
}
try {
raf.write(testBuf, 0, -1);
fail("Test 3: IndexOutOfBoundsException expected.");
} catch (IndexOutOfBoundsException expected) {
}
try {
raf.write(testBuf, 5, testLength);
fail("Test 4: IndexOutOfBoundsException expected.");
} catch (IndexOutOfBoundsException expected) {
}
// Positive test: The following write should not fail.
try {
raf.write(testBuf, 3, testLength - 5);
} catch (Exception e) {
fail("Test 5: Unexpected exception: " + e.getMessage());
}
raf.close();
// Writing nothing to a closed file should not fail either.
try {
raf.write(new byte[0]);
} catch (IOException e) {
fail("Test 6: Unexpected IOException: " + e.getMessage());
}
// Writing something to a closed file should fail.
try {
raf.write(testString.getBytes());
fail("Test 7: IOException expected.");
} catch (IOException e) {
// Expected.
}
FileInputStream fis = new java.io.FileInputStream(fileName);
bytesRead = fis.read(rbuf, 0, testLength);
assertEquals("Test 8: Incorrect number of bytes written or read;",
testLength - 5, bytesRead);
assertEquals("Test 9: Incorrect bytes written or read; ",
testString.substring(3, testLength - 2),
new String(rbuf, 0, bytesRead));
}
/**
* java.io.RandomAccessFile#writeChars(java.lang.String)
*/
public void test_writeCharsLjava_lang_String() throws IOException {
RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
raf.writeChars(unihw);
char[] hchars = new char[unihw.length()];
unihw.getChars(0, unihw.length(), hchars, 0);
raf.seek(0);
for (int i = 0; i < hchars.length; i++)
assertEquals("Test 1: Incorrect character written or read at index " + i + ";",
hchars[i], raf.readChar());
raf.close();
try {
raf.writeChars("Already closed.");
fail("Test 2: IOException expected.");
} catch (IOException e) {
// Expected.
}
}
/**
* Sets up the fixture, for example, open a network connection. This method
* is called before a test is executed.
*/
protected void setUp() throws Exception {
super.setUp();
f = File.createTempFile("raf", "tst");
if (!f.delete()) {
fail("Unable to delete test file : " + f);
}
fileName = f.getAbsolutePath();
}
/**
* Tears down the fixture, for example, close a network connection. This
* method is called after a test is executed.
* @throws Exception
*/
protected void tearDown() throws Exception {
if (f.exists()) {
f.delete();
}
super.tearDown();
}
}