int bufSize = 65536;
        long length = 4096 * 16;
        try ( SmbFile f = createTestFile() ) {
            try ( SmbFile d1 = createTestDirectory();
                  SmbFile t = new SmbFile(d1, makeRandomName()) ) {
                try {
                    try ( OutputStream os = f.getOutputStream() ) {
                        ReadWriteTest.writeRandom(bufSize, length, os);

    }


    @Test
    public void testTrucation () throws IOException {
        try ( SmbFile f = createTestFile() ) {
            try {
                try ( OutputStream os = f.openOutputStream() ) {
                    writeRandom(4096, 3072, os);
                }

                // this should truncate
                try ( OutputStream os = f.openOutputStream() ) {
                    writeRandom(4096, 1024, os);

    public void testBrowse () throws MalformedURLException, CIFSException {
        CIFSContext ctx = withAnonymousCredentials();
        try ( SmbFile smbFile = new SmbFile("smb://", ctx) ) {
            try ( CloseableIterator<SmbResource> it = smbFile.children() ) {
                while ( it.hasNext() ) {
                    try ( SmbResource serv = it.next() ) {
                        System.err.println(serv.getName());
                    }

        try ( SmbResource f = createTestFile() ) {
            try {
                assertCloseTime(f.createTime());
            }
            finally {
                f.delete();
            }
        }
    }


    @Test
    public void testSetCreated () throws CIFSException, MalformedURLException, UnknownHostException {
        try ( SmbResource f = createTestFile() ) {

  protected Map<K, V> makeEitherMap() {
    try {
      return makePopulatedMap();
    } catch (UnsupportedOperationException e) {
      return makeEmptyMap();
    }
  }

  protected final boolean supportsValuesHashCode(Map<K, V> map) {
    // get the first non-null value
    Collection<V> values = map.values();
    for (V value : values) {
      if (value != null) {
        try {
          int unused = value.hashCode();

        try ( SmbResource f = new SmbFile(getTestShareURL(), ctx); ) {
            checkConnection(f);
            f.resolve("test").exists();
        }
    }


    @Test
    public void logonAnonymous () throws IOException {
        try ( SmbResource f = new SmbFile(getTestShareGuestURL(), withAnonymousCredentials()) ) {

        try ( SmbFile f = createTestFile() ) {
            try {
                try ( SmbFileOutputStream os = f.openOutputStream() ) {
                    os.write(new byte[] {
                        0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7
                    });
                }

                byte[] buf = new byte[4];

  protected Map<K, V> makeEitherMap() {
    try {
      return makePopulatedMap();
    } catch (UnsupportedOperationException e) {
      return makeEmptyMap();
    }
  }

  protected final boolean supportsValuesHashCode(Map<K, V> map) {
    // get the first non-null value
    Collection<V> values = map.values();
    for (V value : values) {
      if (value != null) {
        try {
          int unused = value.hashCode();

    Collection<E> copy = new ArrayList<>();
    copy.addAll(collection);

    try {
      collection.add(sampleElement);
      fail("add succeeded on unmodifiable collection");
    } catch (UnsupportedOperationException expected) {
    }

    assertCollectionsAreEquivalent(copy, collection);

    try {
      collection.addAll(siblingCollection);
      fail("addAll succeeded on unmodifiable collection");

    Collection<E> copy = new ArrayList<>();
    copy.addAll(collection);

    try {
      collection.add(sampleElement);
      fail("add succeeded on unmodifiable collection");
    } catch (UnsupportedOperationException expected) {
    }

    assertCollectionsAreEquivalent(copy, collection);

    try {
      collection.addAll(siblingCollection);
      fail("addAll succeeded on unmodifiable collection");