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diff --git a/src/ceph/src/java/test/com/ceph/fs/CephMountTest.java b/src/ceph/src/java/test/com/ceph/fs/CephMountTest.java
new file mode 100644
index 0000000..fcc54d8
--- /dev/null
+++ b/src/ceph/src/java/test/com/ceph/fs/CephMountTest.java
@@ -0,0 +1,1040 @@
+/*
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+package com.ceph.fs;
+
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.net.InetAddress;
+import java.util.UUID;
+import org.junit.*;
+import static org.junit.Assert.*;
+
+import com.ceph.crush.Bucket;
+
+/*
+ * Coverage
+ *  - Everything is covered in at least success cases.
+ *  - l[set,get,remove]xattr are not working
+ */
+
+public class CephMountTest {
+
+  private static CephMount mount;
+  private static String basedir = null;
+
+  @BeforeClass
+  public static void setup() throws Exception {
+    mount = new CephMount("admin");
+
+    String conf_file = System.getProperty("CEPH_CONF_FILE");
+    if (conf_file != null)
+      mount.conf_read_file(conf_file);
+    mount.conf_set("client_permissions", "0");
+
+    mount.mount(null);
+
+    basedir = "/libcephfs_junit_" + UUID.randomUUID();
+    mount.mkdir(basedir, 0777);
+  }
+
+  @AfterClass
+  public static void destroy() throws Exception {
+    String[] list = mount.listdir(basedir);
+    for (String l : list)
+      System.out.println(l);
+    mount.rmdir(basedir);
+    mount.unmount();
+  }
+
+  /*
+   * Helper function to construct a unique path.
+   */
+  public String makePath() {
+    String path = basedir + "/" + UUID.randomUUID();
+    return path;
+  }
+
+  /*
+   * Helper to learn the data pool name, by reading it
+   * from the '/' dir inode.
+   */
+  public String getRootPoolName() throws Exception
+  {
+    int fd = mount.open("/", CephMount.O_DIRECTORY, 0600);
+    String pool = mount.get_file_pool_name(fd);
+    mount.close(fd);
+    return pool;
+  }
+
+  /*
+   * Helper function to create a file with the given path and size. The file
+   * is filled with size bytes and the file descriptor is returned.
+   */
+  public int createFile(String path, int size) throws Exception {
+    int fd = mount.open(path, CephMount.O_RDWR|CephMount.O_CREAT, 0600);
+    byte[] buf = new byte[4096];
+    int left = size;
+    while (left > 0) {
+      size = Math.min(buf.length, left);
+      long ret = mount.write(fd, buf, size, -1);
+      left -= ret;
+    }
+    return fd;
+  }
+
+  /*
+   * Helper function to create a unique file and fill it with size bytes. The
+   * file descriptor is returned.
+   */
+  public int createFile(int size) throws Exception {
+    return createFile(makePath(), size);
+  }
+
+  @Test(expected=FileNotFoundException.class)
+  public void test_mount_dne() throws Exception {
+    CephMount mount2 = new CephMount("admin");
+    String conf_file = System.getProperty("CEPH_CONF_FILE");
+    if (conf_file != null)
+      mount2.conf_read_file(conf_file);
+    mount2.mount("/wlfkjwlekfjwlejfwe");
+    mount2.unmount();
+  }
+
+  /*
+   * Test loading of conf file that doesn't exist.
+   *
+   * FIXME:
+   * Ceph returns -ENOSYS rather than -ENOENT. Correct?
+   */
+  //@Test(expected=FileNotFoundException.class)
+  @Test
+  public void test_conf_read_file_dne() throws Exception {
+    //mount.conf_read_file("/this_file_does_not_exist");
+  }
+
+  /*
+   * Test loading of conf file that isn't valid
+   *
+   * FIXME: implement
+   */
+  @Test
+  public void test_conf_read_file_invalid() throws Exception {
+  }
+
+  @Test(expected=NullPointerException.class)
+  public void test_conf_read_file_null() throws Exception {
+    mount.conf_read_file(null);
+  }
+
+  /*
+   * conf_set/conf_get
+   */
+
+  @Test(expected=NullPointerException.class)
+  public void test_conf_set_null_opt() throws Exception {
+    mount.conf_set(null, "value");
+  }
+
+  @Test(expected=NullPointerException.class)
+  public void test_conf_set_null_val() throws Exception {
+    mount.conf_set("option", null);
+  }
+
+  @Test(expected=NullPointerException.class)
+  public void test_conf_get_null_opt() throws Exception {
+    mount.conf_get(null);
+  }
+
+  @Test
+  public void test_conf() throws Exception {
+    String opt = "log to stderr";
+    String val1, val2, val3;
+
+    /* get the current value */
+    val1 = mount.conf_get(opt);
+
+    /*
+     * flip the value. this may make some debug information be dumped to the
+     * console when the value becomes true. TODO: find a better config option
+     * to toggle.
+     */
+    if (val1.compareTo("true") == 0)
+      val2 = "false";
+    else
+      val2 = "true";
+    mount.conf_set(opt, val2);
+
+    /* verify the change */
+    val3 = mount.conf_get(opt);
+    assertTrue(val3.compareTo(val2) == 0);
+
+    /* reset to original value */
+    mount.conf_set(opt, val1);
+    val3 = mount.conf_get(opt);
+    assertTrue(val3.compareTo(val1) == 0);
+  }
+
+  /*
+   * statfs
+   */
+
+  @Test
+  public void test_statfs() throws Exception {
+    CephStatVFS st1 = new CephStatVFS();
+    mount.statfs("/", st1);
+
+    /*
+     * FIXME: a better test here is to see if changes to the file system are
+     * reflected through statfs (e.g. increasing number of files). However, it
+     * appears that the updates aren't immediately visible.
+     */
+    assertTrue(st1.bsize > 0);
+    assertTrue(st1.frsize > 0);
+    assertTrue(st1.blocks > 0);
+    assertTrue(st1.bavail > 0);
+    assertTrue(st1.namemax > 0);
+  }
+
+  /*
+   * getcwd/chdir
+   */
+
+  @Test
+  public void test_getcwd() throws Exception {
+    mount.chdir(basedir);
+    String cwd = mount.getcwd();
+    assertTrue(cwd.compareTo(basedir) == 0);
+
+    /* Make sure to reset cwd to root */
+    mount.chdir("/");
+    cwd = mount.getcwd();
+    assertTrue(cwd.compareTo("/") == 0);
+  }
+
+  @Test(expected=NullPointerException.class)
+  public void test_chdir_null() throws Exception {
+    mount.chdir(null);
+  }
+
+  @Test(expected=FileNotFoundException.class)
+  public void test_chdir_dne() throws Exception {
+    mount.chdir("/this/path/does/not/exist/");
+  }
+
+  /*
+   * FIXME: this test should throw an error (but does not)?
+   */
+  //@Test(expected=IOException.class)
+  @Test
+  public void test_chdir_not_dir() throws Exception {
+    String path = makePath();
+    int fd = createFile(path, 1);
+    mount.close(fd);
+    //mount.chdir(path); shouldn't be able to do this?
+    mount.unlink(path);
+
+    /*
+     * Switch back. Other tests seem to be sensitive to the current directory
+     * being something other than "/". This shouldn't happen once this tests
+     * passes and the call to chdir fails anyway.
+     */
+    mount.chdir("/");
+  }
+
+  /*
+   * listdir
+   */
+
+  @Test(expected=NullPointerException.class)
+  public void test_listdir_null() throws Exception {
+    mount.listdir(null);
+  }
+
+  @Test(expected=FileNotFoundException.class)
+  public void test_listdir_dne() throws Exception {
+    mount.listdir("/this/path/does/not/exist/");
+  }
+
+  @Test(expected=IOException.class)
+  public void test_listdir_not_dir() throws Exception {
+    String path = makePath();
+    int fd = createFile(path, 1);
+    mount.close(fd);
+    try {
+      mount.listdir(path);
+    } finally {
+      mount.unlink(path);
+    }
+  }
+
+  @Test
+  public void test_listdir() throws Exception {
+    String dir = makePath();
+    mount.mkdir(dir, 0777);
+    /* test that new directory is empty */
+    String[] list = mount.listdir(dir);
+    assertTrue(list.length == 0);
+    /* test that new directories are seen */
+    for (int i = 0; i < 3; i++)
+      mount.mkdir(dir + "/" + i, 777);
+    list = mount.listdir(dir);
+    assertTrue(list.length == 3);
+    /* test that more new directories are seen */
+    for (int i = 0; i < 30; i++)
+      mount.mkdir(dir + "/x" + i, 777);
+    list = mount.listdir(dir);
+    assertTrue(list.length == 33);
+
+    /* remove */
+    for (int i = 0; i < 30; i++)
+      mount.rmdir(dir + "/x" + i);
+    for (int i = 0; i < 3; i++)
+      mount.rmdir(dir + "/" + i);
+    mount.rmdir(dir);
+  }
+
+  /*
+   * Missing
+   *
+   * ceph_link
+   * ceph_unlink
+   */
+
+  /*
+   * rename
+   */
+
+  @Test(expected=NullPointerException.class)
+  public void test_rename_null_from() throws Exception {
+    mount.rename(null, "to");
+  }
+
+  @Test(expected=NullPointerException.class)
+  public void test_rename_null_to() throws Exception {
+    mount.rename("from", null);
+  }
+
+  @Test(expected=FileNotFoundException.class)
+  public void test_rename_dne() throws Exception {
+    mount.rename("/this/doesnt/exist", "/this/neither");
+  }
+
+  @Test
+  public void test_rename() throws Exception {
+    /* create a file */
+    String path = makePath();
+    int fd = createFile(path, 1);
+    mount.close(fd);
+
+    /* move it to a new name */
+    String newpath = makePath();
+    mount.rename(path, newpath);
+
+    /* verfiy the sizes are the same */
+    CephStat st = new CephStat();
+    mount.lstat(newpath, st);
+    assertTrue(st.size == 1);
+
+    /* remove the file */
+    mount.unlink(newpath);
+  }
+
+  /*
+   * mkdir/mkdirs/rmdir
+   */
+
+  @Test(expected=IOException.class)
+  public void test_mkdir_exists() throws Exception {
+    String path = makePath();
+    mount.mkdir(path, 0777);
+    try {
+      mount.mkdir(path, 0777);
+    } finally {
+      mount.rmdir(path);
+    }
+  }
+
+  @Test(expected=IOException.class)
+  public void test_mkdirs_exists() throws Exception {
+    String path = makePath();
+    mount.mkdirs(path, 0777);
+    try {
+      mount.mkdirs(path, 0777);
+    } finally {
+      mount.rmdir(path);
+    }
+  }
+
+  @Test
+  public void test_mkdir() throws Exception {
+    String path = makePath();
+    mount.mkdir(path, 0777);
+    CephStat st = new CephStat();
+    mount.lstat(path, st);
+    assertTrue(st.isDir());
+    mount.rmdir(path);
+  }
+
+  @Test
+  public void test_mkdirs() throws Exception {
+    String path = makePath();
+    mount.mkdirs(path + "/x/y", 0777);
+
+    CephStat st = new CephStat();
+    mount.lstat(path, st);
+    assertTrue(st.isDir());
+
+    mount.lstat(path + "/x", st);
+    assertTrue(st.isDir());
+
+    mount.lstat(path + "/x/y", st);
+    assertTrue(st.isDir());
+
+    mount.rmdir(path + "/x/y");
+    mount.rmdir(path + "/x");
+    mount.rmdir(path);
+  }
+
+  @Test(expected=FileNotFoundException.class)
+  public void test_rmdir() throws Exception {
+    /* make a new directory */
+    String path = makePath();
+    mount.mkdir(path, 0777);
+    CephStat st = new CephStat();
+    mount.lstat(path, st);
+    assertTrue(st.isDir());
+    /* remove it */
+    mount.rmdir(path);
+    /* should not exist now */
+    mount.lstat(path, st);
+  }
+
+  /*
+   * readlink
+   * symlink
+   */
+  @Test
+  public void test_symlink() throws Exception {
+    String oldpath = makePath();
+    String newpath = makePath();
+
+    mount.symlink(oldpath, newpath);
+    CephStat stat = new CephStat();
+    mount.lstat(newpath, stat);
+    assertTrue(stat.isSymlink());
+
+    String symlink = mount.readlink(newpath);
+    assertTrue(symlink.compareTo(oldpath) == 0);
+
+    mount.unlink(newpath);
+  }
+
+  /*
+   * lstat
+   */
+
+  @Test(expected=NullPointerException.class)
+  public void test_lstat_null_path() throws Exception {
+    mount.lstat(null, new CephStat());
+  }
+
+  @Test(expected=NullPointerException.class)
+  public void test_lstat_null_stat() throws Exception {
+    mount.lstat("/path", null);
+  }
+
+  @Test(expected=FileNotFoundException.class)
+  public void test_lstat_null_dne() throws Exception {
+    mount.lstat("/path/does/not/exist", new CephStat());
+  }
+
+  /*
+   * test_stat covers lstat and fstat and stat.
+   *
+   * TODO: create test that for lstat vs stat with symlink follow/nofollow.
+   */
+
+  @Test
+  public void test_stat() throws Exception {
+    /* create a new file */
+    String path = makePath();
+    int size = 12345;
+    int fd = createFile(path, size);
+    mount.close(fd);
+
+    /* test some basic info about the new file */
+    CephStat orig_st = new CephStat();
+    mount.lstat(path, orig_st);
+    assertTrue(orig_st.size == size);
+    assertTrue(orig_st.blksize > 0);
+    assertTrue(orig_st.blocks > 0);
+
+    /* now try stat */
+    CephStat stat_st = new CephStat();
+    mount.stat(path, stat_st);
+
+    /* now try fstat */
+    CephStat other_st = new CephStat();
+    fd = mount.open(path, CephMount.O_RDWR, 0);
+    mount.fstat(fd, other_st);
+    mount.close(fd);
+
+    mount.unlink(path);
+
+    /* compare to fstat results */
+    assertTrue(orig_st.mode == other_st.mode);
+    assertTrue(orig_st.uid == other_st.uid);
+    assertTrue(orig_st.gid == other_st.gid);
+    assertTrue(orig_st.size == other_st.size);
+    assertTrue(orig_st.blksize == other_st.blksize);
+    assertTrue(orig_st.blocks == other_st.blocks);
+
+    /* compare to stat results */
+    assertTrue(orig_st.mode == stat_st.mode);
+    assertTrue(orig_st.uid == stat_st.uid);
+    assertTrue(orig_st.gid == stat_st.gid);
+    assertTrue(orig_st.size == stat_st.size);
+    assertTrue(orig_st.blksize == stat_st.blksize);
+    assertTrue(orig_st.blocks == stat_st.blocks);
+  }
+
+  /*
+   * stat
+   */
+
+  @Test(expected=NullPointerException.class)
+  public void test_stat_null_path() throws Exception {
+    mount.stat(null, new CephStat());
+  }
+
+  @Test(expected=NullPointerException.class)
+  public void test_stat_null_stat() throws Exception {
+    mount.stat("/path", null);
+  }
+
+  @Test(expected=FileNotFoundException.class)
+  public void test_stat_null_dne() throws Exception {
+    mount.stat("/path/does/not/exist", new CephStat());
+  }
+
+  @Test(expected=CephNotDirectoryException.class)
+  public void test_enotdir() throws Exception {
+    String path = makePath();
+    int fd = createFile(path, 1);
+    mount.close(fd);
+
+    try {
+      CephStat stat = new CephStat();
+      mount.lstat(path + "/blah", stat);
+    } finally {
+      mount.unlink(path);
+    }
+  }
+
+  /*
+   * setattr
+   */
+
+  @Test(expected=NullPointerException.class)
+  public void test_setattr_null_path() throws Exception {
+    mount.setattr(null, new CephStat(), 0);
+  }
+
+  @Test(expected=NullPointerException.class)
+  public void test_setattr_null_stat() throws Exception {
+    mount.setattr("/path", null, 0);
+  }
+
+  @Test(expected=FileNotFoundException.class)
+  public void test_setattr_dne() throws Exception {
+    mount.setattr("/path/does/not/exist", new CephStat(), 0);
+  }
+
+  @Test
+  public void test_setattr() throws Exception {
+    /* create a file */
+    String path = makePath();
+    int fd = createFile(path, 1);
+    mount.close(fd);
+
+    CephStat st1 = new CephStat();
+    mount.lstat(path, st1);
+
+    st1.uid += 1;
+    st1.gid += 1;
+    mount.setattr(path, st1, mount.SETATTR_UID|mount.SETATTR_GID);
+
+    CephStat st2 = new CephStat();
+    mount.lstat(path, st2);
+
+    assertTrue(st2.uid == st1.uid);
+    assertTrue(st2.gid == st1.gid);
+
+    /* remove the file */
+    mount.unlink(path);
+  }
+
+  /*
+   * chmod
+   */
+
+  @Test(expected=NullPointerException.class)
+  public void test_chmod_null_path() throws Exception {
+    mount.chmod(null, 0);
+  }
+
+  @Test(expected=FileNotFoundException.class)
+  public void test_chmod_dne() throws Exception {
+    mount.chmod("/path/does/not/exist", 0);
+  }
+
+  @Test
+  public void test_chmod() throws Exception {
+    /* create a file */
+    String path = makePath();
+    int fd = createFile(path, 1);
+    mount.close(fd);
+
+    CephStat st = new CephStat();
+    mount.lstat(path, st);
+
+    /* flip a bit */
+    int mode = st.mode;
+    if ((mode & 1) != 0)
+      mode -= 1;
+    else
+      mode += 1;
+
+    mount.chmod(path, mode);
+    CephStat st2 = new CephStat();
+    mount.lstat(path, st2);
+    assertTrue(st2.mode == mode);
+
+    mount.unlink(path);
+  }
+
+  /*
+   * fchmod
+   */
+
+  @Test
+  public void test_fchmod() throws Exception {
+    /* create a file */
+    String path = makePath();
+    int fd = createFile(path, 1);
+
+    CephStat st = new CephStat();
+    mount.lstat(path, st);
+
+    /* flip a bit */
+    int mode = st.mode;
+    if ((mode & 1) != 0)
+      mode -= 1;
+    else
+      mode += 1;
+
+    mount.fchmod(fd, mode);
+    mount.close(fd);
+
+    CephStat st2 = new CephStat();
+    mount.lstat(path, st2);
+    assertTrue(st2.mode == mode);
+
+    mount.unlink(path);
+  }
+
+  /*
+   * truncate
+   */
+
+  @Test(expected=FileNotFoundException.class)
+  public void test_truncate_dne() throws Exception {
+    mount.truncate("/path/does/not/exist", 0);
+  }
+
+  @Test(expected=NullPointerException.class)
+  public void test_truncate_null_path() throws Exception {
+    mount.truncate(null, 0);
+  }
+
+  @Test
+  public void test_truncate() throws Exception {
+    // make file
+    String path = makePath();
+    int orig_size = 1398331;
+    int fd = createFile(path, orig_size);
+    mount.close(fd);
+
+    // check file size
+    CephStat st = new CephStat();
+    mount.lstat(path, st);
+    assertTrue(st.size == orig_size);
+
+    // truncate and check
+    int crop_size = 333333;
+    mount.truncate(path, crop_size);
+    mount.lstat(path, st);
+    assertTrue(st.size == crop_size);
+
+    // check after re-open
+    fd = mount.open(path, CephMount.O_RDWR, 0);
+    mount.fstat(fd, st);
+    assertTrue(st.size == crop_size);
+    mount.close(fd);
+
+    mount.unlink(path);
+  }
+
+  @Test
+  public void test_open_layout() throws Exception {
+    String path = makePath();
+    int fd = mount.open(path, CephMount.O_WRONLY|CephMount.O_CREAT, 0,
+        (1<<20), 1, (1<<20), null);
+    mount.close(fd);
+    mount.unlink(path);
+  }
+
+  /*
+   * open/close
+   */
+
+  @Test(expected=FileNotFoundException.class)
+  public void test_open_dne() throws Exception {
+    mount.open("/path/doesnt/exist", 0, 0);
+  }
+
+  /*
+   * lseek
+   */
+
+  @Test
+  public void test_lseek() throws Exception {
+    /* create a new file */
+    String path = makePath();
+    int size = 12345;
+    int fd = createFile(path, size);
+    mount.close(fd);
+
+    /* open and check size */
+    fd = mount.open(path, CephMount.O_RDWR, 0);
+    long end = mount.lseek(fd, 0, CephMount.SEEK_END);
+    mount.close(fd);
+
+    mount.unlink(path);
+
+    assertTrue(size == (int)end);
+  }
+
+  /*
+   * read/write
+   */
+
+  @Test
+  public void test_read() throws Exception {
+    String path = makePath();
+    int fd = createFile(path, 1500);
+    byte[] buf = new byte[1500];
+    long ret = mount.read(fd, buf, 1500, 0);
+    assertTrue(ret == 1500);
+    mount.unlink(path);
+  }
+
+  /*
+   * ftruncate
+   */
+
+  @Test
+  public void test_ftruncate() throws Exception {
+    // make file
+    String path = makePath();
+    int orig_size = 1398331;
+    int fd = createFile(path, orig_size);
+
+    // check file size
+    CephStat st = new CephStat();
+    mount.fstat(fd, st);
+    assertTrue(st.size == orig_size);
+
+    // truncate and check
+    int crop_size = 333333;
+    mount.ftruncate(fd, crop_size);
+    mount.fstat(fd, st);
+    if (st.size != crop_size) {
+      System.err.println("ftruncate error: st.size=" + st.size + " crop_size=" + crop_size);
+      assertTrue(false);
+    }
+    assertTrue(st.size == crop_size);
+    mount.close(fd);
+
+    // check after re-open
+    fd = mount.open(path, CephMount.O_RDWR, 0);
+    mount.fstat(fd, st);
+    assertTrue(st.size == crop_size);
+    mount.close(fd);
+
+    mount.unlink(path);
+  }
+
+  /*
+   * fsync
+   */
+
+  @Test
+  public void test_fsync() throws Exception {
+    String path = makePath();
+    int fd = createFile(path, 123);
+    mount.fsync(fd, false);
+    mount.fsync(fd, true);
+    mount.close(fd);
+    mount.unlink(path);
+  }
+
+  /*
+   * flock
+   */
+
+  @Test
+  public void test_flock() throws Exception {
+    String path = makePath();
+    int fd = createFile(path, 123);
+    mount.flock(fd, CephMount.LOCK_SH | CephMount.LOCK_NB, 42);
+    mount.flock(fd, CephMount.LOCK_SH | CephMount.LOCK_NB, 43);
+    mount.flock(fd, CephMount.LOCK_UN, 42);
+    mount.flock(fd, CephMount.LOCK_UN, 43);
+    mount.flock(fd, CephMount.LOCK_EX | CephMount.LOCK_NB, 42);
+    try {
+      mount.flock(fd, CephMount.LOCK_SH | CephMount.LOCK_NB, 43);
+      assertTrue(false);
+    } catch(IOException io) {}
+    try {
+      mount.flock(fd, CephMount.LOCK_EX | CephMount.LOCK_NB, 43);
+      assertTrue(false);
+    } catch(IOException io) {}
+    mount.flock(fd, CephMount.LOCK_SH, 42);  // downgrade
+    mount.flock(fd, CephMount.LOCK_SH, 43);
+    mount.flock(fd, CephMount.LOCK_UN, 42);
+    mount.flock(fd, CephMount.LOCK_UN, 43);
+    mount.close(fd);
+    mount.unlink(path);
+  }
+
+  /*
+   * fstat
+   *
+   * success case is handled in test_stat along with lstat.
+   */
+
+  /*
+   * sync_fs
+   */
+
+  @Test
+  public void test_sync_fs() throws Exception {
+    mount.sync_fs();
+  }
+
+  /*
+   * get/set/list/remove xattr
+   */
+
+  @Test
+  public void test_xattr() throws Exception {
+    /* make file */
+    String path = makePath();
+    int fd = createFile(path, 123);
+    mount.close(fd);
+
+    /* make xattrs */
+    String val1 = "This is a new xattr";
+    String val2 = "This is a different xattr";
+    byte[] buf1 = val1.getBytes();
+    byte[] buf2 = val2.getBytes();
+    mount.setxattr(path, "user.attr1", buf1, buf1.length, mount.XATTR_CREATE);
+    mount.setxattr(path, "user.attr2", buf2, buf2.length, mount.XATTR_CREATE);
+
+    /* list xattrs */
+    String[] xattrs = mount.listxattr(path);
+    assertTrue(xattrs.length == 2);
+    int found = 0;
+    for (String xattr : xattrs) {
+      if (xattr.compareTo("user.attr1") == 0) {
+        found++;
+        continue;
+      }
+      if (xattr.compareTo("user.attr2") == 0) {
+        found++;
+        continue;
+      }
+      System.out.println("found unwanted xattr: " + xattr);
+    }
+    assertTrue(found == 2);
+
+    /* get first xattr by looking up length */
+    long attr1_len = mount.getxattr(path, "user.attr1", null);
+    byte[] out = new byte[(int)attr1_len];
+    mount.getxattr(path, "user.attr1", out);
+    String outStr = new String(out);
+    assertTrue(outStr.compareTo(val1) == 0);
+
+    /* get second xattr assuming original length */
+    out = new byte[buf2.length];
+    mount.getxattr(path, "user.attr2", out);
+    outStr = new String(out);
+    assertTrue(outStr.compareTo(val2) == 0);
+
+    /* remove the attributes */
+    /* FIXME: the MDS returns ENODATA for removexattr */
+    /*
+    mount.removexattr(path, "attr1");
+    xattrs = mount.listxattr(path);
+    assertTrue(xattrs.length == 1);
+    mount.removexattr(path, "attr2");
+    xattrs = mount.listxattr(path);
+    assertTrue(xattrs.length == 0);
+    */
+
+    mount.unlink(path);
+  }
+
+  /*
+   * get/set/list/remove symlink xattr
+   *
+   * Currently not working. Code is the same as for regular xattrs, so there
+   * might be a deeper issue.
+   */
+
+  @Test
+  public void test_get_stripe_unit() throws Exception {
+    String path = makePath();
+    int fd = createFile(path, 1);
+    assertTrue(mount.get_file_stripe_unit(fd) > 0);
+    mount.close(fd);
+    mount.unlink(path);
+  }
+
+  @Test
+  public void test_get_repl() throws Exception {
+    String path = makePath();
+    int fd = createFile(path, 1);
+    assertTrue(mount.get_file_replication(fd) > 0);
+    mount.close(fd);
+    mount.unlink(path);
+  }
+
+  /*
+   * stripe unit granularity
+   */
+
+  @Test
+  public void test_get_stripe_unit_gran() throws Exception {
+    assertTrue(mount.get_stripe_unit_granularity() > 0);
+  }
+
+  @Test
+  public void test_get_pool_id() throws Exception {
+    String data_pool_name = getRootPoolName();
+    /* returns valid pool id */
+    assertTrue(mount.get_pool_id(data_pool_name) >= 0);
+
+    /* test non-existent pool name */
+    try {
+      mount.get_pool_id("asdlfkjlsejflkjef");
+      assertTrue(false);
+    } catch (CephPoolException e) {}
+  }
+
+  @Test
+  public void test_get_pool_replication() throws Exception {
+    /* test invalid pool id */
+    try {
+      mount.get_pool_replication(-1);
+      assertTrue(false);
+    } catch (CephPoolException e) {}
+
+    /* test valid pool id */
+    String data_pool_name = getRootPoolName();
+    int poolid = mount.get_pool_id(data_pool_name);
+    assertTrue(poolid >= 0);
+    assertTrue(mount.get_pool_replication(poolid) > 0);
+  }
+
+  @Test
+  public void test_get_file_pool_name() throws Exception {
+    String data_pool_name = getRootPoolName();
+    String path = makePath();
+    int fd = createFile(path, 1);
+    String pool = mount.get_file_pool_name(fd);
+    mount.close(fd);
+    assertTrue(pool != null);
+    /* assumes using default data pool */
+    assertTrue(pool.compareTo(data_pool_name) == 0);
+    mount.unlink(path);
+  }
+
+  @Test(expected=IOException.class)
+  public void test_get_file_pool_name_ebadf() throws Exception {
+    String pool = mount.get_file_pool_name(-40);
+  }
+
+  @Test
+  public void test_get_file_extent() throws Exception {
+    int stripe_unit = 1<<18;
+    String path = makePath();
+    int fd = mount.open(path, CephMount.O_WRONLY|CephMount.O_CREAT, 0,
+        stripe_unit, 2, stripe_unit*2, null);
+
+    CephFileExtent e = mount.get_file_extent(fd, 0);
+    assertTrue(e.getOSDs().length > 0);
+
+    assertTrue(e.getOffset() == 0);
+    assertTrue(e.getLength() == stripe_unit);
+
+    e = mount.get_file_extent(fd, stripe_unit/2);
+    assertTrue(e.getOffset() == stripe_unit/2);
+    assertTrue(e.getLength() == stripe_unit/2);
+
+    e = mount.get_file_extent(fd, 3*stripe_unit/2-1);
+    assertTrue(e.getOffset() == 3*stripe_unit/2-1);
+    assertTrue(e.getLength() == stripe_unit/2+1);
+
+    e = mount.get_file_extent(fd, 3*stripe_unit/2+1);
+    assertTrue(e.getLength() == stripe_unit/2-1);
+
+    mount.close(fd);
+    mount.unlink(path);
+  }
+
+  @Test
+  public void test_get_osd_crush_location() throws Exception {
+    Bucket[] path = mount.get_osd_crush_location(0);
+    assertTrue(path.length > 0);
+    for (Bucket b : path) {
+      assertTrue(b.getType().length() > 0);
+      assertTrue(b.getName().length() > 0);
+    }
+  }
+
+  @Test
+  public void test_get_osd_address() throws Exception {
+    InetAddress addr = mount.get_osd_address(0);
+    assertTrue(addr.getHostAddress().length() > 0);
+  }
+}