}


    @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);

        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];

  public void testCheckPositive_zeroInt() {
    try {
      MathPreconditions.checkPositive("int", 0);
      fail();
    } catch (IllegalArgumentException expected) {
    }
  }

  public void testCheckPositive_maxInt() {
    MathPreconditions.checkPositive("int", Integer.MAX_VALUE);
  }

  public void testCheckPositive_minInt() {
    try {
      MathPreconditions.checkPositive("int", Integer.MIN_VALUE);

        public MutiThreadTestCase () {}


        @Override
        public void run () {

            try {
                try ( SmbResource f = createTestFile() ) {
                    try {
                        // f.exists();
                        // try ( OutputStream os = f.openOutputStream(false, SmbConstants.FILE_NO_SHARE) ) {
                        // os.write(new byte[] {

        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 {
      Helpers.assertContentsInOrder(list, "a", "b", "c", "d");
      throw new Error();
    } catch (AssertionFailedError expected) {
    }

    try {
      Helpers.assertContentsInOrder(list, "a", "c", "b");
      throw new Error();
    } catch (AssertionFailedError expected) {
    }

    try {
      Helpers.assertContentsInOrder(list, "a", "B", "c");

    }
    try {
      MediaType.parse("text/");
      fail();
    } catch (IllegalArgumentException expected) {
    }
    try {
      MediaType.parse("te<t/plain");
      fail();
    } catch (IllegalArgumentException expected) {
    }
    try {
      MediaType.parse("text/pl@in");
      fail();
    } catch (IllegalArgumentException expected) {
    }
    try {

    }
    try {
      MediaType.parse("text/");
      fail();
    } catch (IllegalArgumentException expected) {
    }
    try {
      MediaType.parse("te<t/plain");
      fail();
    } catch (IllegalArgumentException expected) {
    }
    try {
      MediaType.parse("text/pl@in");
      fail();
    } catch (IllegalArgumentException expected) {
    }
    try {

        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);

    assertTrue(iterator.hasNext());
    assertEquals("a", iterator.next());
    try {
      iterator.remove();
      fail();
    } catch (UnsupportedOperationException expected) {
    }
    assertFalse(iterator.hasNext());
    try {
      iterator.next();
      fail();
    } catch (NoSuchElementException expected) {
    }
    try {
      iterable.iterator();
      fail();