void handlesNullDirectory() throws Exception {
        SmbFilenameFilter filter = (dir, name) -> dir == null;

        boolean result = filter.accept(null, "anything");

        assertTrue(result, "Filter should accept when dir is null as defined");
    }

    /**
     * Exception flow: filter throws SmbException and it propagates to caller.
     */
    @Test

 *
 */
public class ByteConversionUtilTest extends TestCase {

    /**
     * @throws Exception
     */
    public void testToByte() throws Exception {
        assertEquals(Byte.valueOf("100"), ByteConversionUtil.toByte("100"));
    }

    /**
     * @throws Exception
     */
    public void testToPrimitiveByte() throws Exception {
        assertEquals(100, ByteConversionUtil.toPrimitiveByte("100"));
    }

 *
 */
public class DoubleConversionUtilTest extends TestCase {

    /**
     * @throws Exception
     */
    public void testToDouble() throws Exception {
        assertEquals(Double.valueOf("1000.5"), DoubleConversionUtil.toDouble("1,000.5"));
    }

    /**
     * @throws Exception
     */
    public void testToPrimitiveDouble() throws Exception {
        assertEquals(1000.5, DoubleConversionUtil.toPrimitiveDouble("1,000.5"), 0);

 *
 */
public class FloatConversionUtilTest extends TestCase {

    /**
     * @throws Exception
     */
    public void testToFloat() throws Exception {
        assertEquals(Float.valueOf("1000.5"), FloatConversionUtil.toFloat("1,000.5"));
    }

    /**
     * @throws Exception
     */
    public void testToPrimitiveFloat() throws Exception {
        assertEquals(1000.5, FloatConversionUtil.toPrimitiveFloat("1,000.5"), 0);

  private Path rootDir;

  @Override
  public void setUp() throws IOException {
    rootDir = Jimfs.newFileSystem(Configuration.unix()).getPath("/tmp");
    Files.createDirectory(rootDir);
  }

  @Override
  public void tearDown() throws IOException {
    rootDir.getFileSystem().close();
  }

  public void testFileTraverser_emptyDirectory() throws Exception {

        final List<String> commands = Collections.singletonList("test_command");
        generator.setCommandList(commands);
        assertTrue(true);
    }

    @Test
    public void test_setCommandList_null() throws Exception {
        generator.setCommandList(null);
        assertTrue(true);
    }

    @Test
    public void test_setCommandList_empty() throws Exception {

public class NumberConversionUtilTest extends TestCase {

    /**
     * @throws Exception
     */
    public void testConvertNumber_byte() throws Exception {
        assertEquals(Byte.valueOf("1"), NumberConversionUtil.convertNumber(Byte.class, "1"));
    }

    /**
     * @throws Exception
     */
    public void testConvertNumber_primitiveWrapper() throws Exception {

    return "leave";
  }

  public final void testMutualExclusion() throws Exception {
    thread1.callAndAssertReturns(enter());
    thread2.callAndAssertBlocks(enter());
    thread1.callAndAssertReturns(leave());
    thread2.assertPriorCallReturns(enter());
  }

  public final void testTryEnter() throws Exception {
    thread1.callAndAssertReturns(true, tryEnter());

     * @throws PrompterException if an exception occurs
     */
    @Nonnull
    String promptForPassword(@Nullable String message) throws PrompterException;

    /**
     * Displays a message to the user.
     *
     * @param message the message to display
     * @throws PrompterException if an exception occurs
     */
    void showMessage(@Nullable String message) throws PrompterException;

    runUntimedInterruptsTest(38);
  }

  public void testMakeUninterruptible_timed_uninterrupted() throws Exception {
    runTimedInterruptsTest(0);
  }

  public void testMakeUninterruptible_timed_interrupted() throws Exception {
    runTimedInterruptsTest(1);
  }

  public void testMakeUninterruptible_timed_multiplyInterrupted() throws Exception {