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/*

* Copyright (C) 2014 Klaus Reimer <k@ailis.de>

* See LICENSE.md for licensing information.

*/

package org.usb4java;

import static org.junit.Assert.assertEquals;

import static org.junit.Assert.assertFalse;

import static org.junit.Assert.assertNotEquals;

import static org.junit.Assert.assertNotNull;

import static org.junit.Assert.assertTrue;

import static org.usb4java.test.UsbAssume.assumeUsbTestsEnabled;

import static org.usb4java.test.UsbAssume.isUsbTestsEnabled;

import org.junit.After;

import org.junit.Before;

import org.junit.Test;

/**

* Tests the {@link DeviceList} class.

*

* @author Klaus Reimer (k@ailis.de)

*/

public class DeviceListTest

{

/**

* Setup test.

*/

@Before

public void setUp()

{

if (isUsbTestsEnabled())

{

LibUsb.init(null);

}

}

/**

* Tear down test.

*/

@After

public void tearDown()

{

if (isUsbTestsEnabled())

{

LibUsb.exit(null);

}

}

/**

* Tests the {@link DeviceList#equals(Object)} method.

*/

@Test

public void testEquals()

{

assumeUsbTestsEnabled();

DeviceList a = new DeviceList();

DeviceList b = new DeviceList();

DeviceList c = new DeviceList();

DeviceList d = new DeviceList();

LibUsb.getDeviceList(null, a);

LibUsb.getDeviceList(null, b);

try

{

assertTrue(c.equals(d));

assertTrue(a.equals(a));

assertTrue(b.equals(b));

assertFalse(a.equals(b));

assertFalse(a.equals(null));

assertFalse(a.equals(""));

}

finally

{

LibUsb.freeDeviceList(a, true);

LibUsb.freeDeviceList(b, true);

}

}

/**

* Tests the {@link DeviceList#hashCode()} method.

*/

@Test

public void testHashCode()

{

assumeUsbTestsEnabled();

DeviceList list = new DeviceList();

LibUsb.getDeviceList(null, list);

try

{

assertEquals(list.hashCode(), list.hashCode());

}

finally

{

LibUsb.freeDeviceList(list, true);

}

}

/**

* Tests the {@link DeviceList#toString()} method

*/

@Test

public void testToString()

{

assumeUsbTestsEnabled();

DeviceList list = new DeviceList();

LibUsb.getDeviceList(null, list);

try

{

assertNotNull(list.toString());

assertTrue(list.toString().length() > 0);

}

finally

{

LibUsb.freeDeviceList(list, true);

}

}

/**

* Tests the {@link DeviceList#getPointer()} method

*/

@Test

public void testGe()

{

assumeUsbTestsEnabled();

assumeUsbTestsEnabled();

DeviceList list = new DeviceList();

assertEquals(0, list.getPointer());

LibUsb.getDeviceList(null, list);

try

{

assertNotEquals(0, list.getPointer());

}

finally

{

LibUsb.freeDeviceList(list, true);

}

}

}