/**
* BlueCove - Java library for Bluetooth
* Copyright (C) 2008-2009 Michael Lifshits
* Copyright (C) 2008-2009 Vlad Skarzhevskyy
*
* 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.
*
* @author vlads
* @version $Id$
*/
package com.intel.bluetooth.emu;
import java.io.IOException;
import java.util.Random;
import junit.framework.TestCase;
/**
*
*/
public class ConnectedInputStreamTest extends TestCase {
final static int TEST_BUFFER_SIZE = 4 * 2 * 10;
ConnectedInputStream is;
ConnectedOutputStream os;
Random rnd = new Random();
protected void setUp() throws Exception {
super.setUp();
is = new ConnectedInputStream(TEST_BUFFER_SIZE, false);
os = new ConnectedOutputStream(is);
}
private byte[] createData(int size) {
byte data[] = new byte[size];
int off = rnd.nextInt(size);
for (int i = 0; i < data.length; i++) {
data[i] = (byte) ((off + i) % 0xFF);
if (i > 0) {
assertTrue("same data", data[i - 1] != data[i]);
}
}
return data;
}
private byte[] verifyWrite(int writeSize, int expectedAvailable) throws IOException {
byte data[] = createData(writeSize);
os.write(data);
assertEquals("available", expectedAvailable, is.available());
return data;
}
private void verifyRead(int readSize, int expectedReadSize, byte expectedReadData[], int off) throws IOException {
byte rcv[] = new byte[readSize];
int recieved = is.read(rcv);
assertEquals("recieved len from buffer", expectedReadSize, recieved);
for (int i = 0; i < recieved; i++) {
assertEquals("recieved data buffer[" + i + "]", rcv[i], expectedReadData[i + off]);
}
}
private void verifyWriteRead(int writeSize, int expectedWritten, int readSize, int expectedReadSize)
throws IOException {
byte data[] = verifyWrite(writeSize, expectedWritten);
verifyRead(readSize, expectedReadSize, data, 0);
assertEquals("available", 0, is.available());
}
public void testWriteReadSimple() throws IOException {
verifyWriteRead(1, 1, 1, 1);
verifyWriteRead(7, 7, 7, 7);
}
public void testWriteClose() throws IOException {
verifyWriteRead(1, 1, 1, 1);
byte data[] = verifyWrite(3, 3);
os.close();
verifyRead(3, 3, data, 0);
assertEquals("EOF available", 0, is.available());
assertEquals("EOF expected", -1, is.read());
}
public void testWriteReadMoreThanSize() throws IOException {
int size = TEST_BUFFER_SIZE - (TEST_BUFFER_SIZE / 4);
for (int i = 0; i < 7; i++) {
verifyWriteRead(size, size, size, size);
}
}
public void testAllBytes() throws IOException {
final int size = TEST_BUFFER_SIZE * 3;
byte data[] = createData(size);
for (int i = 0; i < size; i++) {
os.write(data[i]);
assertEquals("available[" + i + "]", 1, is.available());
int b = is.read();
assertEquals("recieved data buffer[" + i + "]", data[i], (byte) b);
assertEquals("available[" + i + "]", 0, is.available());
}
}
public void testWriteReadBorderConditions() throws IOException {
int size = TEST_BUFFER_SIZE;
verifyWriteRead(size, size, size, size);
verifyWriteRead(size, size, size, size);
verifyWriteRead(size, size, size, size);
}
public void verifyAllBytesBorderConditions(int shift) throws IOException {
final int size = TEST_BUFFER_SIZE * 3;
byte data[] = createData(size);
int w;
for (w = 0; w < shift; w++) {
os.write(data[w]);
assertEquals("available[" + w + "]", w + 1, is.available());
}
int r;
for (r = 0; r < size - shift; r++) {
int b = is.read();
assertEquals("recieved data buffer[" + r + "]", data[r], (byte) b);
assertEquals("available shift[" + r + "]", shift - 1, is.available());
w = r + shift;
os.write(data[w]);
assertEquals("available[" + w + "]", shift, is.available());
}
for (; r < size; r++) {
int b = is.read();
assertEquals("recieved data buffer[" + r + "]", data[r], (byte) b);
assertEquals("available shift[" + r + "]", size - r - 1, is.available());
}
}
public void testAllBytesBorderConditions() throws IOException {
verifyAllBytesBorderConditions(TEST_BUFFER_SIZE / 2);
verifyAllBytesBorderConditions(TEST_BUFFER_SIZE / 4);
verifyAllBytesBorderConditions(3 * TEST_BUFFER_SIZE / 4);
}
public void testWriteReadBorderConditions2() throws IOException {
byte data[] = verifyWrite(TEST_BUFFER_SIZE, TEST_BUFFER_SIZE);
int parts = 8;
int size = TEST_BUFFER_SIZE / parts;
for (int i = 0; i < parts; i++) {
assertEquals("available [" + i + "]", size * (parts - i), is.available());
verifyRead(size, size, data, size * i);
}
assertEquals("available", 0, is.available());
for (int i = 0; i < 5; i++) {
verifyWriteRead(size, size, size, size);
}
}
}