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/*
* Copyright (C) 2013 Klaus Reimer <k@ailis.de>
* See LICENSE.md for licensing information.
*/
package org.usb4java;
import static org.usb4java.test.UsbAssume.assumeUsbTestsEnabled;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.usb4java.Context;
import org.usb4java.Device;
import org.usb4java.DeviceList;
import org.usb4java.LibUsb;
/**
* Tests the global-scope methods of the {@link LibUsb} class which need a
* open USB context.
*
* @author Klaus Reimer (k@ailis.de)
*/
public class LibUsbGlobalTest
{
/** The libusb context. */
private Context context;
/**
* Set up the test.
*/
@Before
public void setUp()
{
this.context = new Context();
try
{
LibUsb.init(this.context);
}
catch (final Throwable e)
{
this.context = null;
}
}
/**
* Tear down the test.
*/
@After
public void tearDown()
{
if (this.context != null)
{
LibUsb.exit(this.context);
}
}
/**
* Tests the {@link LibUsb#setDebug(Context, int)} method.
*/
@Test
@Deprecated
public void testSetDebug()
{
assumeUsbTestsEnabled();
LibUsb.setDebug(this.context, LibUsb.LOG_LEVEL_DEBUG);
LibUsb.setDebug(this.context, LibUsb.LOG_LEVEL_INFO);
LibUsb.setDebug(this.context, LibUsb.LOG_LEVEL_WARNING);
LibUsb.setDebug(this.context, LibUsb.LOG_LEVEL_ERROR);
LibUsb.setDebug(this.context, LibUsb.LOG_LEVEL_NONE);
}
/**
* Test getting and freeing the device list.
*/
@Test
public void testDeviceList()
{
assumeUsbTestsEnabled();
final DeviceList list = new DeviceList();
final int result = LibUsb.getDeviceList(this.context, list);
assertTrue(
"At least one USB device must be present for the simple unit tests",
result > 0);
assertEquals(result, list.getSize());
int i = 0;
for (final Device device : list)
{
assertNotNull(device);
assertEquals(device, list.get(i));
assertEquals(Device.class, device.getClass());
i++;
}
LibUsb.freeDeviceList(list, true);
}
/**
* Test {@link LibUsb#getDeviceList(Context, DeviceList)} without specifying
* a list container.
*/
@Test(expected = IllegalArgumentException.class)
public void testGetDeviceListWithoutList()
{
assumeUsbTestsEnabled();
LibUsb.getDeviceList(this.context, null);
}
/**
* Checks the {@link LibUsb#le16ToCpu(short)} and
* {@link LibUsb#cpuToLe16(short)} methods.
*/
@Test
public void testEndianConversion()
{
assumeUsbTestsEnabled();
assertEquals(0x1234, LibUsb.le16ToCpu(LibUsb.cpuToLe16((short) 0x1234)));
}
/**
* Tests the {@link LibUsb#hasCapability(int)} method.
*/
@Test
public void testHasCapability()
{
assumeUsbTestsEnabled();
assertTrue(LibUsb.hasCapability(LibUsb.CAP_HAS_CAPABILITY));
assertFalse(LibUsb.hasCapability(0x12345678));
}
/**
* Tests the {@link LibUsb#errorName(int)} method.
*/
@Test
public void testErrorName()
{
assumeUsbTestsEnabled();
assertEquals("LIBUSB_ERROR_IO", LibUsb.errorName(LibUsb.ERROR_IO));
assertEquals("**UNKNOWN**", LibUsb.errorName(0x1234));
}
/**
* Tests the {@link LibUsb#strError(int)} method.
*/
@Test
public void testStrError()
{
assumeUsbTestsEnabled();
assertEquals("Input/Output Error", LibUsb.strError(LibUsb.ERROR_IO));
assertEquals("Other error", LibUsb.strError(0x1234));
}
/**
* Tests the {@link LibUsb#setLocale(String)} method.
*/
@Test
public void testSetLocale()
{
assumeUsbTestsEnabled();
assertEquals(LibUsb.SUCCESS, LibUsb.setLocale("en"));
assertEquals(LibUsb.ERROR_NOT_FOUND, LibUsb.setLocale("zz"));
assertEquals(LibUsb.ERROR_INVALID_PARAM, LibUsb.setLocale("zzz"));
}
}