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DescriptorUtilsTest.java
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146 lines (129 loc) · 4.6 KB
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/*
* Copyright (C) 2013 Klaus Reimer <[email protected]>
* See LICENSE.md for licensing information.
*/
package org.usb4java;
import static org.junit.Assert.assertEquals;
import java.lang.reflect.Constructor;
import java.nio.ByteBuffer;
import org.junit.Test;
import org.usb4java.DescriptorUtils;
import org.usb4java.LibUsb;
/**
* Tests the {@link DescriptorUtils} class.
*
* @author Klaus Reimer ([email protected])
*/
public class DescriptorUtilsTest
{
/**
* Tests the {@link DescriptorUtils#decodeBCD(short)} method.
*/
@Test
public void testDecodeBCD()
{
assertEquals("10.20", DescriptorUtils.decodeBCD((short) 0x1020));
}
/**
* Tests the {@link DescriptorUtils#getSpeedName(int)} method.
*/
@Test
public void testGetSpeedName()
{
assertEquals("Super", DescriptorUtils.getSpeedName(LibUsb.SPEED_SUPER));
assertEquals("Full", DescriptorUtils.getSpeedName(LibUsb.SPEED_FULL));
assertEquals("High", DescriptorUtils.getSpeedName(LibUsb.SPEED_HIGH));
assertEquals("Low", DescriptorUtils.getSpeedName(LibUsb.SPEED_LOW));
assertEquals("Unknown",
DescriptorUtils.getSpeedName(LibUsb.SPEED_UNKNOWN));
}
/**
* Tests the {@link DescriptorUtils#getDirectionName(byte)} method.
*/
@Test
public void testGetDirectionName()
{
assertEquals("IN", DescriptorUtils.getDirectionName(LibUsb.ENDPOINT_IN));
assertEquals("OUT", DescriptorUtils.getDirectionName(LibUsb.ENDPOINT_OUT));
}
/**
* Tests the {@link DescriptorUtils#getSynchTypeName(byte)} method.
*/
@Test
public void testGetSynchTypeName()
{
assertEquals("None", DescriptorUtils.getSynchTypeName((byte) 0));
assertEquals("Asynchronous", DescriptorUtils.getSynchTypeName((byte) 4));
assertEquals("Adaptive", DescriptorUtils.getSynchTypeName((byte) 8));
assertEquals("Synchronous", DescriptorUtils.getSynchTypeName((byte) 12));
}
/**
* Tests the {@link DescriptorUtils#getUsageTypeName(byte)} method.
*/
@Test
public void testGetUsageTypeName()
{
assertEquals("Data", DescriptorUtils.getUsageTypeName((byte) 0));
assertEquals("Feedback", DescriptorUtils.getUsageTypeName((byte) 16));
assertEquals("Implicit Feedback Data",
DescriptorUtils.getUsageTypeName((byte) 32));
assertEquals("Reserved", DescriptorUtils.getUsageTypeName((byte) 48));
}
/**
* Tests the {@link DescriptorUtils#getTransferTypeName(byte)} method.
*/
@Test
public void testGetTransferTypeName()
{
assertEquals("Control", DescriptorUtils.getTransferTypeName((byte) 0));
assertEquals("Isochronous", DescriptorUtils.getTransferTypeName((byte) 1));
assertEquals("Bulk", DescriptorUtils.getTransferTypeName((byte) 2));
assertEquals("Interrupt", DescriptorUtils.getTransferTypeName((byte) 3));
}
/**
* Tests the {@link DescriptorUtils#getUSBClassName(byte)} method.
*/
@Test
public void testGetUSBClassName()
{
assertEquals("Audio",
DescriptorUtils.getUSBClassName(LibUsb.CLASS_AUDIO));
assertEquals("Unknown", DescriptorUtils.getUSBClassName((byte) 0xF3));
}
/**
* Tests the {@link DescriptorUtils#dump(java.nio.ByteBuffer)} method.
*/
@Test
public void testDumpByteBuffer()
{
ByteBuffer bytes = ByteBuffer.allocate(0);
assertEquals("", DescriptorUtils.dump(bytes));
bytes = ByteBuffer.allocate(8);
bytes.put(new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 });
assertEquals("01 02 03 04 05 06 07 08", DescriptorUtils.dump(bytes));
bytes = ByteBuffer.allocate(16);
bytes.put(new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
15, 16 });
assertEquals("01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f 10",
DescriptorUtils.dump(bytes));
bytes = ByteBuffer.allocate(20);
bytes.put(new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
15, 16, 17, 18, 19, 20 });
assertEquals(String.format("01 02 03 04 05 06 07 08 09 0a 0b 0c 0d " +
"0e 0f 10%n11 12 13 14"), DescriptorUtils.dump(bytes));
}
/**
* Ensure constructor is private.
*
* @throws Exception
* When constructor test fails.
*/
@Test
public void testPrivateConstructor() throws Exception
{
assertEquals(0, DescriptorUtils.class.getConstructors().length);
Constructor<?> c = DescriptorUtils.class.getDeclaredConstructor();
c.setAccessible(true);
c.newInstance();
}
}