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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.usb4java.test.UsbAssume.isUsbTestsEnabled;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import static org.junit.Assume.assumeFalse;
import static org.junit.Assume.assumeNotNull;
import java.nio.ByteBuffer;
import java.nio.IntBuffer;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.usb4java.ConfigDescriptor;
import org.usb4java.Context;
import org.usb4java.Device;
import org.usb4java.DeviceDescriptor;
import org.usb4java.DeviceHandle;
import org.usb4java.DeviceList;
import org.usb4java.EndpointDescriptor;
import org.usb4java.Interface;
import org.usb4java.InterfaceDescriptor;
import org.usb4java.LibUsb;
/**
* Tests the device-scope methods of the {@link LibUsb} class which need a open
* USB context and a device to run the tests on.
*
* @author Klaus Reimer (k@ailis.de)
*/
public class LibUsbDeviceTest
{
/** The libusb context. */
private Context context;
/** The device to run the tests on. */
private Device device;
/** The device endpoint to test with. */
private byte endpoint;
/** The value of the active configuration. */
private byte configValue;
/** The vendor ID of the device we test. */
private short vendorId;
/** The manufacturer ID of the device we test. */
private short productId;
/**
* Set up the test.
*/
@Before
public void setUp()
{
if (isUsbTestsEnabled())
{
this.context = new Context();
LibUsb.init(this.context);
try
{
this.device = this.findTestDevice();
if (this.device == null)
{
throw new IllegalStateException("Need at least one USB device "
+ "with at least one endpoint to execute this test");
}
}
catch (final Throwable e)
{
this.device = null;
}
}
}
/**
* Finds a test device with at least one endpoint.
*
* @return The test device or null if none.
*/
private Device findTestDevice()
{
final DeviceList list = new DeviceList();
if (LibUsb.getDeviceList(this.context, list) <= 0)
{
return null;
}
try
{
for (final Device device : list)
{
final DeviceDescriptor descriptor = new DeviceDescriptor();
if (LibUsb.getDeviceDescriptor(device, descriptor) != 0)
{
continue;
}
this.vendorId = descriptor.idVendor();
this.productId = descriptor.idProduct();
final ConfigDescriptor config = new ConfigDescriptor();
if (LibUsb.getActiveConfigDescriptor(device, config) < 0)
{
return null;
}
try
{
this.configValue = config.bConfigurationValue();
for (int j = 0; j < config.bNumInterfaces(); j++)
{
final Interface iface = config.iface()[j];
for (int k = 0; k < iface.numAltsetting(); k++)
{
final InterfaceDescriptor ifaceDescriptor = iface
.altsetting()[k];
if (ifaceDescriptor.bNumEndpoints() > 0)
{
this.endpoint = ifaceDescriptor.endpoint()[0]
.bEndpointAddress();
return LibUsb.refDevice(device);
}
}
}
}
finally
{
LibUsb.freeConfigDescriptor(config);
}
}
}
finally
{
LibUsb.freeDeviceList(list, true);
}
return null;
}
/**
* Tear down the test.
*/
@After
public void tearDown()
{
if (isUsbTestsEnabled())
{
if (this.device != null)
{
LibUsb.unrefDevice(this.device);
}
if (this.context != null)
{
LibUsb.exit(this.context);
}
}
}
/**
* Tests the {@link LibUsb#getBusNumber(Device)} method.
*/
@Test
public void testGetBusNumber()
{
assumeUsbTestsEnabled();
assumeNotNull(this.device);
assertTrue(LibUsb.getBusNumber(this.device) >= 0);
}
/**
* Tests the {@link LibUsb#getPortNumber(Device)} method.
*/
@Test
public void testGetPortNumber()
{
assumeUsbTestsEnabled();
assumeNotNull(this.device);
assertTrue(LibUsb.getPortNumber(this.device) >= 0);
}
/**
* Tests the {@link LibUsb#getPortNumbers(Device, ByteBuffer)} method.
*/
@Test
public void testGetPortNumbers()
{
assumeUsbTestsEnabled();
assumeNotNull(this.device);
final ByteBuffer path = BufferUtils.allocateByteBuffer(8);
final int result = LibUsb.getPortNumbers(this.device, path);
assertTrue(result >= 0);
assertTrue(result <= path.capacity());
}
/**
* Tests the {@link LibUsb#getPortNumbers(Device, ByteBuffer)} method with
* 0-sized path buffer.
*/
@Test
public void testGetPortNumbersWithTooSmallBuffer()
{
assumeUsbTestsEnabled();
assumeNotNull(this.device);
final ByteBuffer path = BufferUtils.allocateByteBuffer(0);
final int result = LibUsb.getPortNumbers(this.device, path);
assertEquals(LibUsb.ERROR_INVALID_PARAM, result);
}
/**
* Tests the {@link LibUsb#getPortNumbers(Device, ByteBuffer)} method
* without a device.
*/
@Test(expected = IllegalArgumentException.class)
public void testGetPortNumbersWithoutDevice()
{
assumeUsbTestsEnabled();
LibUsb.getPortNumbers(null, BufferUtils.allocateByteBuffer(8));
}
/**
* Tests the {@link LibUsb#getPortNumbers(Device, ByteBuffer)} method
* without a buffer.
*/
@Test(expected = IllegalArgumentException.class)
public void testGetPortNumbersWithoutBuffer()
{
assumeUsbTestsEnabled();
LibUsb.getPortNumbers(this.device, null);
}
/**
* Tests {@link LibUsb#getPortNumbers(Device, ByteBuffer)} method with
* uninitialized device.
*/
@Test(expected = IllegalStateException.class)
public void testGetPortNumbersWithUninitializedDevice()
{
assumeUsbTestsEnabled();
LibUsb.getPortNumbers(new Device(), BufferUtils.allocateByteBuffer(16));
}
/**
* Tests the {@link LibUsb#getParent(Device)} method.
*/
@Test
public void testGetParent()
{
assumeUsbTestsEnabled();
assumeNotNull(this.device);
final DeviceList list = new DeviceList();
LibUsb.getDeviceList(this.context, list);
try
{
final Device parent = LibUsb.getParent(this.device);
// We cannot test anything else here. Parent can be null if our
// test device is a root device. We just make sure that it can't
// be the device itself.
assertNotEquals(parent, this.device);
}
finally
{
LibUsb.freeDeviceList(list, true);
}
}
/**
* Tests the {@link LibUsb#getParent(Device)} method without a device.
*/
@Test(expected = IllegalArgumentException.class)
public void testGetParentWithoutDevice()
{
assumeUsbTestsEnabled();
LibUsb.getParent(null);
}
/**
* Tests the {@link LibUsb#getDeviceAddress(Device)} method.
*/
@Test
public void testGetDeviceAddress()
{
assumeUsbTestsEnabled();
assumeNotNull(this.device);
assertTrue(LibUsb.getDeviceAddress(this.device) >= 0);
}
/**
* Tests the {@link LibUsb#getDeviceAddress(Device)} method without a
* device.
*/
@Test(expected = IllegalArgumentException.class)
public void testGetDeviceAddressWithoutDevice()
{
assumeUsbTestsEnabled();
LibUsb.getDeviceAddress(null);
}
/**
* Tests the {@link LibUsb#getDeviceSpeed(Device)} method.
*/
@Test
public void testGetDeviceSpeed()
{
assumeUsbTestsEnabled();
assumeNotNull(this.device);
final int speed = LibUsb.getDeviceSpeed(this.device);
assertTrue((speed >= LibUsb.SPEED_UNKNOWN)
&& (speed <= LibUsb.SPEED_SUPER));
}
/**
* Tests the {@link LibUsb#getDeviceSpeed(Device)} method without a device.
*/
@Test(expected = IllegalArgumentException.class)
public void testGetDeviceSpeedWithoutDevice()
{
assumeUsbTestsEnabled();
LibUsb.getDeviceSpeed(null);
}
/**
* Tests the {@link LibUsb#getMaxPacketSize(Device, byte)} method.
*/
@Test
public void testGetMaxPacketSizeWithInvalidEndpoint()
{
assumeUsbTestsEnabled();
assumeNotNull(this.device);
assertEquals(LibUsb.ERROR_NOT_FOUND,
LibUsb.getMaxPacketSize(this.device, (byte) 0));
}
/**
* Tests the {@link LibUsb#getMaxPacketSize(Device, byte)} method.
*/
@Test
public void testGetMaxPacketSize()
{
assumeUsbTestsEnabled();
assumeNotNull(this.device);
assertTrue(LibUsb.getMaxPacketSize(this.device, this.endpoint) > 0);
}
/**
* Tests the {@link LibUsb#getMaxPacketSize(Device, byte)} method without a
* device.
*/
@Test(expected = IllegalArgumentException.class)
public void testGetMaxPacketSizeWithoutDevice()
{
assumeUsbTestsEnabled();
LibUsb.getMaxPacketSize(null, (byte) 0);
}
/**
* Tests the {@link LibUsb#getMaxIsoPacketSize(Device, byte)} method.
*/
@Test
public void testGetMaxIsoPacketSizeWithInvalidEndpoint()
{
assumeUsbTestsEnabled();
assumeNotNull(this.device);
assertEquals(LibUsb.ERROR_NOT_FOUND,
LibUsb.getMaxIsoPacketSize(this.device, (byte) 0));
}
/**
* Tests the {@link LibUsb#getMaxIsoPacketSize(Device, byte)} method.
*/
@Test
public void testGetMaxIsoPacketSize()
{
assumeUsbTestsEnabled();
assumeNotNull(this.device);
assertTrue(LibUsb.getMaxIsoPacketSize(this.device, this.endpoint) > 0);
}
/**
* Tests the {@link LibUsb#getMaxIsoPacketSize(Device, byte)} method without
* a device.
*/
@Test(expected = IllegalArgumentException.class)
public void testGetMaxIsoPacketSizeWithoutDevice()
{
assumeUsbTestsEnabled();
LibUsb.getMaxIsoPacketSize(null, (byte) 0);
}
/**
* Tests the {@link LibUsb#refDevice(Device)} and
* {@link LibUsb#unrefDevice(Device)} methods.
*/
@Test
public void testRefUnRefDevice()
{
assumeUsbTestsEnabled();
assumeNotNull(this.device);
final Device device = LibUsb.refDevice(this.device);
try
{
assertEquals(this.device, device);
}
finally
{
LibUsb.unrefDevice(device);
}
}
/**
* Tests the {@link LibUsb#refDevice(Device)} method without a device.
*/
@Test(expected = IllegalArgumentException.class)
public void testRefDeviceWithoutDevice()
{
assumeUsbTestsEnabled();
LibUsb.refDevice(null);
}
/**
* Tests the {@link LibUsb#unrefDevice(Device)} method without a device.
*/
@Test(expected = IllegalArgumentException.class)
public void testUnrefDeviceWithoutDevice()
{
assumeUsbTestsEnabled();
LibUsb.unrefDevice(null);
}
/**
* Tests the {@link LibUsb#open(Device, DeviceHandle)} method. This can't be
* really tested in a simple unit test like this. Most likely the user has
* no access to the device. So this test succeeds on SUCCESS and on
* ERROR_ACCESS. At least we have to make sure that the open() method doesn't
* crash.
*/
@Test
public void testOpenAndClose()
{
assumeUsbTestsEnabled();
assumeNotNull(this.device);
final DeviceHandle handle = new DeviceHandle();
final int result = LibUsb.open(this.device, handle);
assertTrue((result == LibUsb.SUCCESS)
|| (result == LibUsb.ERROR_ACCESS));
if (result == LibUsb.SUCCESS)
{
LibUsb.close(handle);
try
{
LibUsb.close(handle);
fail("Double-close should throw IllegalStateException");
}
catch (final IllegalStateException e)
{
// Expected behavior
}
}
}
/**
* Tests the {@link LibUsb#open(Device, DeviceHandle)} method without a
* device.
*/
@Test(expected = IllegalArgumentException.class)
public void testOpenWithoutDevice()
{
assumeUsbTestsEnabled();
final DeviceHandle handle = new DeviceHandle();
LibUsb.open(null, handle);
}
/**
* Tests the {@link LibUsb#open(Device, DeviceHandle)} method without a
* handle
*/
@Test(expected = IllegalArgumentException.class)
public void testOpenWithoutHandle()
{
assumeUsbTestsEnabled();
LibUsb.open(this.device, null);
}
/**
* Tests the {@link LibUsb#close(DeviceHandle)} method without a handle
*/
@Test(expected = IllegalArgumentException.class)
public void testCloseWithoutHandle()
{
assumeUsbTestsEnabled();
LibUsb.close(null);
}
/**
* Tests the {@link LibUsb#openDeviceWithVidPid(Context, short, short)}
* method.
* We can't test anything here because the device most likely can't be
* opened anyway. We just make sure it does not crash.
*/
@Test
public void testOpenDeviceWithVidPid()
{
assumeUsbTestsEnabled();
final DeviceHandle handle = LibUsb.openDeviceWithVidPid(this.context,
this.vendorId, this.productId);
if (handle != null)
{
LibUsb.close(handle);
}
}
/**
* Tests the {@link LibUsb#getDevice(DeviceHandle)} method without a handle.
*/
@Test(expected = IllegalArgumentException.class)
public void testGetDeviceWithoutHandle()
{
assumeUsbTestsEnabled();
LibUsb.getDevice(null);
}
/**
* Tests the
* {@link LibUsb#getConfiguration(DeviceHandle, java.nio.IntBuffer)} method
* without a handle.
*/
@Test(expected = IllegalArgumentException.class)
public void testGetConfigurationWithoutHandle()
{
assumeUsbTestsEnabled();
LibUsb.getConfiguration(null, BufferUtils.allocateIntBuffer());
}
/**
* Tests the
* {@link LibUsb#getConfiguration(DeviceHandle, java.nio.IntBuffer)} method
* without a buffer.
*/
@Test(expected = IllegalArgumentException.class)
public void testGetConfigurationWithoutBuffer()
{
assumeUsbTestsEnabled();
LibUsb.getConfiguration(new DeviceHandle(), null);
}
/**
* Tests the {@link LibUsb#setConfiguration(DeviceHandle, int)} method
* without a handle.
*/
@Test(expected = IllegalArgumentException.class)
public void testSetConfigurationWithoutHandle()
{
assumeUsbTestsEnabled();
LibUsb.setConfiguration(null, 0);
}
/**
* Tests the {@link LibUsb#claimInterface(DeviceHandle, int)} method without
* a handle.
*/
@Test(expected = IllegalArgumentException.class)
public void testClaimInterfaceWithoutHandle()
{
assumeUsbTestsEnabled();
LibUsb.claimInterface(null, 0);
}
/**
* Tests the {@link LibUsb#releaseInterface(DeviceHandle, int)} method
* without a handle.
*/
@Test(expected = IllegalArgumentException.class)
public void testReleaseInterfaceWithoutHandle()
{
assumeUsbTestsEnabled();
LibUsb.releaseInterface(null, 0);
}
/**
* Tests the {@link LibUsb#setInterfaceAltSetting(DeviceHandle, int, int)}
* method without a handle.
*/
@Test(expected = IllegalArgumentException.class)
public void testSetInterfaceAltSettingWithoutHandle()
{
assumeUsbTestsEnabled();
LibUsb.setInterfaceAltSetting(null, 0, 0);
}
/**
* Tests the {@link LibUsb#clearHalt(DeviceHandle, byte)} method without a
* handle.
*/
@Test(expected = IllegalArgumentException.class)
public void testClearHaltWithoutHandle()
{
assumeUsbTestsEnabled();
LibUsb.clearHalt(null, (byte) 0);
}
/**
* Tests the {@link LibUsb#resetDevice(DeviceHandle)} method without a
* handle.
*/
@Test(expected = IllegalArgumentException.class)
public void testResetDeviceWithoutHandle()
{
assumeUsbTestsEnabled();
LibUsb.resetDevice(null);
}
/**
* Tests the {@link LibUsb#kernelDriverActive(DeviceHandle, int)} method
* without a handle.
*/
@Test(expected = IllegalArgumentException.class)
public void testKernelDriverActiveWithoutHandle()
{
assumeUsbTestsEnabled();
LibUsb.kernelDriverActive(null, 0);
}
/**
* Tests the {@link LibUsb#detachKernelDriver(DeviceHandle, int)} method
* without a handle.
*/
@Test(expected = IllegalArgumentException.class)
public void testDetachKernelDriverWithoutHandle()
{
assumeUsbTestsEnabled();
LibUsb.detachKernelDriver(null, 0);
}
/**
* Tests the {@link LibUsb#attachKernelDriver(DeviceHandle, int)} method
* without a handle.
*/
@Test(expected = IllegalArgumentException.class)
public void testAttachKernelDriverWithoutHandle()
{
assumeUsbTestsEnabled();
LibUsb.attachKernelDriver(null, 0);
}
/**
* Tests the {@link LibUsb#getDeviceDescriptor(Device, DeviceDescriptor)}
* method without a device.
*/
@Test(expected = IllegalArgumentException.class)
public void testGetDeviceDescriptorWithoutDevice()
{
assumeUsbTestsEnabled();
LibUsb.getDeviceDescriptor(null, new DeviceDescriptor());
}
/**
* Tests the {@link LibUsb#getDeviceDescriptor(Device, DeviceDescriptor)}
* method without a descriptor.
*/
@Test(expected = IllegalArgumentException.class)
public void testGetDeviceDescriptorWithoutDescriptor()
{
assumeUsbTestsEnabled();
LibUsb.getDeviceDescriptor(this.device, null);
}
/**
* Tests the {@link LibUsb#getDeviceDescriptor(Device, DeviceDescriptor)}
* method.
*
* Most descriptor fields can be anything because we are not testing a
* specific device. We call each method anyway to make sure it is connected
* to JNI and doesn't crash.
*/
@Test
public void testGetDeviceDescriptor()
{
assumeUsbTestsEnabled();
assumeNotNull(this.device);
final DeviceDescriptor desc = new DeviceDescriptor();
LibUsb.getDeviceDescriptor(this.device, desc);
desc.bcdDevice();
desc.bcdUSB();
assertEquals(LibUsb.DT_DEVICE, desc.bDescriptorType());
desc.bDeviceClass();
desc.bDeviceProtocol();
desc.bDeviceSubClass();
assertTrue(desc.bLength() > 0);
desc.bMaxPacketSize0();
desc.bNumConfigurations();
}
/**
* Tests the
* {@link LibUsb#getActiveConfigDescriptor(Device, ConfigDescriptor)} method
* without a device.
*/
@Test(expected = IllegalArgumentException.class)
public void testGetActiveConfigDescriptorWithoutDevice()
{
assumeUsbTestsEnabled();
LibUsb.getActiveConfigDescriptor(null, new ConfigDescriptor());
}
/**
* Tests the
* {@link LibUsb#getActiveConfigDescriptor(Device, ConfigDescriptor)} method
* without a descriptor.
*/
@Test(expected = IllegalArgumentException.class)
public void testGetActiveConfigDescriptorWithoutDescriptor()
{
assumeUsbTestsEnabled();
LibUsb.getActiveConfigDescriptor(this.device, null);
}
/**
* Validates the specified config descriptor.
*
* @param desc
* The config descriptor to validate.
*/
private void validateConfigDescriptor(final ConfigDescriptor desc)
{
desc.bConfigurationValue();
assertEquals(LibUsb.DT_CONFIG, desc.bDescriptorType());
assertTrue(desc.bLength() > 0);
desc.bmAttributes();
desc.bMaxPower();
assertEquals(desc.extraLength(), desc.extra().limit());
desc.iConfiguration();
assertEquals(desc.bNumInterfaces(), desc.iface().length);
assertTrue(desc.wTotalLength() >= desc.bLength());
for (final Interface iface : desc.iface())
{
this.validateInterface(iface);
}
}
/**
* Validates the specified interface.
*
* @param iface
* The interface to validate.
*/
private void validateInterface(final Interface iface)
{
assertEquals(iface.numAltsetting(), iface.altsetting().length);
for (final InterfaceDescriptor desc : iface.altsetting())
{
this.validateInterfaceDescriptor(desc);
}
}
/**
* Validates the specified interface descriptor.
*
* @param desc
* The interface descriptor to validate.
*/
private void validateInterfaceDescriptor(final InterfaceDescriptor desc)
{
desc.bAlternateSetting();
assertEquals(LibUsb.DT_INTERFACE, desc.bDescriptorType());
desc.bInterfaceClass();
desc.bInterfaceNumber();
desc.bInterfaceProtocol();
desc.bInterfaceSubClass();
assertTrue(desc.bLength() > 0);
assertEquals(desc.bNumEndpoints(), desc.endpoint().length);
assertEquals(desc.extraLength(), desc.extra().limit());
desc.iInterface();
for (final EndpointDescriptor endDesc : desc.endpoint())
{
this.validateEndpointDescriptor(endDesc);
}
}
/**
* Validates the specified endpoint descriptor.
*
* @param desc
* The endpoint descriptor to validate.
*/
private void validateEndpointDescriptor(final EndpointDescriptor desc)
{
assertEquals(LibUsb.DT_ENDPOINT, desc.bDescriptorType());
desc.bEndpointAddress();
desc.bInterval();
assertTrue(desc.bLength() > 0);
desc.bmAttributes();
desc.bRefresh();
desc.bSynchAddress();
assertEquals(desc.extraLength(), desc.extra().limit());
desc.wMaxPacketSize();
}
/**
* Tests the
* {@link LibUsb#getActiveConfigDescriptor(Device, ConfigDescriptor)}
* method.
*/
@Test
public void testGetActiveConfigDescriptor()
{
assumeUsbTestsEnabled();
assumeNotNull(this.device);
final ConfigDescriptor desc = new ConfigDescriptor();
LibUsb.getActiveConfigDescriptor(this.device, desc);
try
{
this.validateConfigDescriptor(desc);
}
finally
{
LibUsb.freeConfigDescriptor(desc);
}
}
/**
* Tests the
* {@link LibUsb#getConfigDescriptor(Device, byte, ConfigDescriptor)} method
* without a device.
*/
@Test(expected = IllegalArgumentException.class)
public void testGetConfigDescriptorWithoutDevice()
{
assumeUsbTestsEnabled();
LibUsb.getConfigDescriptor(null, (byte) 0, new ConfigDescriptor());
}
/**
* Tests the
* {@link LibUsb#getConfigDescriptor(Device, byte, ConfigDescriptor)} method
* without a descriptor.
*/
@Test(expected = IllegalArgumentException.class)
public void testGetConfigDescriptorWithoutDescriptor()
{
assumeUsbTestsEnabled();
LibUsb.getConfigDescriptor(this.device, (byte) 0, null);
}
/**
* Tests the
* {@link LibUsb#getConfigDescriptor(Device, byte, ConfigDescriptor)}
* method.
*/
@Test
public void testGetConfigDescriptor()
{
assumeUsbTestsEnabled();
assumeNotNull(this.device);
final ConfigDescriptor desc = new ConfigDescriptor();
LibUsb.getConfigDescriptor(this.device, (byte) 0, desc);
try
{
this.validateConfigDescriptor(desc);
}
finally
{
LibUsb.freeConfigDescriptor(desc);
}
}
/**
* Tests the
* {@link LibUsb#getConfigDescriptorByValue(Device, byte, ConfigDescriptor)}
* method without a device.
*/
@Test(expected = IllegalArgumentException.class)
public void testGetConfigDescriptorByValueWithoutDevice()
{
assumeUsbTestsEnabled();
LibUsb.getConfigDescriptorByValue(null, (byte) 0,
new ConfigDescriptor());
}
/**
* Tests the
* {@link LibUsb#getConfigDescriptorByValue(Device, byte, ConfigDescriptor)}
* method without a descriptor.
*/
@Test(expected = IllegalArgumentException.class)
public void testGetConfigDescriptorByValueWithoutDescriptor()
{
assumeUsbTestsEnabled();
LibUsb.getConfigDescriptorByValue(this.device, (byte) 0, null);
}
/**
* Tests the
* {@link LibUsb#getConfigDescriptorByValue(Device, byte, ConfigDescriptor)}
* method.
*/
@Test
public void testGetConfigDescriptorByValue()
{
assumeUsbTestsEnabled();
assumeNotNull(this.device);
final ConfigDescriptor desc = new ConfigDescriptor();
LibUsb.getConfigDescriptorByValue(this.device, this.configValue, desc);
try
{
this.validateConfigDescriptor(desc);
}
finally
{
LibUsb.freeConfigDescriptor(desc);
try
{
LibUsb.freeConfigDescriptor(desc);
fail("Double-free should throw IllegalStateException");
}
catch (final IllegalStateException e)
{
// Expected behavior
}
}
}
/**
* Tests the {@link LibUsb#freeConfigDescriptor(ConfigDescriptor)} method
* without a descriptor.
*/
@Test
public void testFreeConfigDescriptorWithoutDescriptor()
{
assumeUsbTestsEnabled();
LibUsb.freeConfigDescriptor(null);
}
/**
* Tests the
* {@link LibUsb#getStringDescriptorAscii(DeviceHandle, byte, StringBuffer)}
* method without a handle.
*/
@Test(expected = IllegalArgumentException.class)
public void testGetStringDescriptorAsciiWithoutHandle()
{
assumeUsbTestsEnabled();
LibUsb.getStringDescriptorAscii(null, (byte) 0, new StringBuffer());
}
/**
* Tests the
* {@link LibUsb#getStringDescriptorAscii(DeviceHandle, byte, StringBuffer)}
* method without a buffer.
*/
@Test(expected = IllegalArgumentException.class)
public void testGetStringDescriptorAsciiWithoutBuffer()
{
assumeUsbTestsEnabled();
LibUsb.getStringDescriptorAscii(new DeviceHandle(), (byte) 0, null);
}
/**
* Tests the
* {@link LibUsb#getDescriptor(DeviceHandle, byte, byte, ByteBuffer)} method
* without a handle.
*/
@Test(expected = IllegalArgumentException.class)
public void testGetDescriptorWithoutHandle()
{
assumeUsbTestsEnabled();
LibUsb.getDescriptor(null, (byte) 0, (byte) 0,
BufferUtils.allocateByteBuffer(18));
}
/**
* Tests the
* {@link LibUsb#getDescriptor(DeviceHandle, byte, byte, ByteBuffer)} method
* without a buffer.
*/
@Test(expected = IllegalArgumentException.class)
public void testGetDescriptorWithoutBuffer()
{
assumeUsbTestsEnabled();
LibUsb.getDescriptor(new DeviceHandle(), (byte) 0, (byte) 0, null);
}
/**
* Tests the
* {@link LibUsb#getStringDescriptor(DeviceHandle, byte, short, ByteBuffer)}
* method without a handle.
*/
@Test(expected = IllegalArgumentException.class)
public void testGetStringDescriptorWithoutHandle()
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