/** Test <code>long skip(long len)</code>. */
  @Test
  public void skipTest() throws IOException {
    for (int k = MIN_LEN + DELTA; k <= MAX_LEN; k += DELTA) {
      WriteType op = WriteType.THROUGH;
      int fileId = TestUtils.createByteFile(mTfs, "/root/testFile_" + k + "_" + op, op, k);

      TachyonFile file = mTfs.getFile(fileId);
      InStream is = file.getInStream(ReadType.CACHE);
      Assert.assertTrue(is instanceof RemoteBlockInStream);
      Assert.assertEquals(k / 2, is.skip(k / 2));
      Assert.assertEquals(k / 2, is.read());
      is.close();
      Assert.assertFalse(file.isInMemory());

      if (k >= 3) {
        is = file.getInStream(ReadType.CACHE);
        Assert.assertTrue(is instanceof RemoteBlockInStream);
        int t = k / 3;
        Assert.assertEquals(t, is.skip(t));
        Assert.assertEquals(t, is.read());
        Assert.assertEquals(t, is.skip(t));
        Assert.assertEquals(2 * t + 1, is.read());
        is.close();
        Assert.assertFalse(file.isInMemory());
      }
    }
  }
示例#2
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  /** Test <code>void read()</code>. */
  @Test
  public void readTest1() throws IOException {
    for (int k = 100; k <= 200; k += 33) {
      for (WriteType op : WriteType.values()) {
        int fileId = TestUtils.createByteFile(mTfs, "/root/testFile_" + k + "_" + op, op, k);

        TachyonFile file = mTfs.getFile(fileId);
        InStream is =
            (k < 150 ? file.getInStream(ReadType.CACHE) : file.getInStream(ReadType.NO_CACHE));
        Assert.assertTrue(is instanceof BlockInStream);
        byte[] ret = new byte[k];
        int value = is.read();
        int cnt = 0;
        while (value != -1) {
          ret[cnt++] = (byte) value;
          value = is.read();
        }
        Assert.assertTrue(TestUtils.equalIncreasingByteArray(k, ret));
        is.close();

        is = (k < 150 ? file.getInStream(ReadType.CACHE) : file.getInStream(ReadType.NO_CACHE));
        Assert.assertTrue(is instanceof BlockInStream);
        ret = new byte[k];
        value = is.read();
        cnt = 0;
        while (value != -1) {
          ret[cnt++] = (byte) value;
          value = is.read();
        }
        Assert.assertTrue(TestUtils.equalIncreasingByteArray(k, ret));
        is.close();
      }
    }
  }
示例#3
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  /** Test <code>long skip(long len)</code>. */
  @Test
  public void skipTest() throws IOException {
    for (int k = 10; k <= 200; k += 33) {
      for (WriteType op : WriteType.values()) {
        int fileId = TestUtils.createByteFile(mTfs, "/root/testFile_" + k + "_" + op, op, k);

        TachyonFile file = mTfs.getFile(fileId);
        InStream is =
            (k < 100 ? file.getInStream(ReadType.CACHE) : file.getInStream(ReadType.NO_CACHE));
        Assert.assertTrue(is instanceof BlockInStream);
        Assert.assertEquals(k / 2, is.skip(k / 2));
        Assert.assertEquals(k / 2, is.read());
        is.close();

        is = (k < 100 ? file.getInStream(ReadType.CACHE) : file.getInStream(ReadType.NO_CACHE));
        Assert.assertTrue(is instanceof BlockInStream);
        int t = k / 3;
        Assert.assertEquals(t, is.skip(t));
        Assert.assertEquals(t, is.read());
        Assert.assertEquals(t, is.skip(t));
        Assert.assertEquals((byte) (2 * t + 1), is.read());
        is.close();
      }
    }
  }
  /** Test <code>void read(byte[] b, int off, int len)</code>. Read from underfs. */
  @Test
  public void readTest3() throws IOException {
    for (int k = MIN_LEN; k <= MAX_LEN; k += DELTA) {
      WriteType op = WriteType.THROUGH;
      int fileId = TestUtils.createByteFile(mTfs, "/root/testFile_" + k + "_" + op, op, k);

      TachyonFile file = mTfs.getFile(fileId);
      InStream is = file.getInStream(ReadType.NO_CACHE);
      if (k == 0) {
        Assert.assertTrue(is instanceof EmptyBlockInStream);
      } else {
        Assert.assertTrue(is instanceof RemoteBlockInStream);
      }
      byte[] ret = new byte[k / 2];
      Assert.assertEquals(k / 2, is.read(ret, 0, k / 2));
      Assert.assertTrue(TestUtils.equalIncreasingByteArray(k / 2, ret));
      is.close();
      if (k == 0) {
        Assert.assertTrue(file.isInMemory());
      } else {
        Assert.assertFalse(file.isInMemory());
      }

      is = file.getInStream(ReadType.CACHE);
      if (k == 0) {
        Assert.assertTrue(is instanceof EmptyBlockInStream);
      } else {
        Assert.assertTrue(is instanceof RemoteBlockInStream);
      }
      ret = new byte[k];
      Assert.assertEquals(k, is.read(ret, 0, k));
      Assert.assertTrue(TestUtils.equalIncreasingByteArray(k, ret));
      is.close();
      Assert.assertTrue(file.isInMemory());

      is = file.getInStream(ReadType.CACHE);
      if (k == 0) {
        Assert.assertTrue(is instanceof EmptyBlockInStream);
      } else {
        Assert.assertTrue(is instanceof LocalBlockInStream);
      }
      ret = new byte[k];
      Assert.assertEquals(k, is.read(ret));
      Assert.assertTrue(TestUtils.equalIncreasingByteArray(k, ret));
      is.close();
      Assert.assertTrue(file.isInMemory());
    }
  }
示例#5
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  /** Test <code>void read(byte[] b, int off, int len)</code>. */
  @Test
  public void readTest3() throws IOException {
    for (int k = 100; k <= 300; k += 33) {
      for (WriteType op : WriteType.values()) {
        int fileId = TestUtils.createByteFile(mTfs, "/root/testFile_" + k + "_" + op, op, k);

        TachyonFile file = mTfs.getFile(fileId);
        InStream is =
            (k < 200 ? file.getInStream(ReadType.CACHE) : file.getInStream(ReadType.NO_CACHE));
        Assert.assertTrue(is instanceof BlockInStream);
        byte[] ret = new byte[k / 2];
        Assert.assertEquals(k / 2, is.read(ret, 0, k / 2));
        Assert.assertTrue(TestUtils.equalIncreasingByteArray(k / 2, ret));
        is.close();

        is = (k < 200 ? file.getInStream(ReadType.CACHE) : file.getInStream(ReadType.NO_CACHE));
        Assert.assertTrue(is instanceof BlockInStream);
        ret = new byte[k];
        Assert.assertEquals(k, is.read(ret, 0, k));
        Assert.assertTrue(TestUtils.equalIncreasingByteArray(k, ret));
        is.close();
      }
    }
  }
  /** Test <code>void read(byte[] b, int off, int len)</code>. Read from remote data server. */
  @Test
  public void readTest6() throws IOException {
    for (int k = MIN_LEN + DELTA; k <= MAX_LEN; k += DELTA) {
      WriteType op = WriteType.MUST_CACHE;
      int fileId = TestUtils.createByteFile(mTfs, "/root/testFile_" + k + "_" + op, op, k);

      TachyonFile file = mTfs.getFile(fileId);
      InStream is = new RemoteBlockInStream(file, ReadType.NO_CACHE, 0);
      Assert.assertTrue(is instanceof RemoteBlockInStream);
      byte[] ret = new byte[k / 2];
      int start = 0;
      while (start < k / 2) {
        int read = is.read(ret, 0, (k / 2) - start);
        Assert.assertTrue(TestUtils.equalIncreasingByteArray(start, read, ret));
        start += read;
      }
      is.close();
      Assert.assertTrue(file.isInMemory());
    }
  }
  /**
   * Test <code>void seek(long pos)</code>.
   *
   * @throws IOException
   */
  @Test
  public void seekTest() throws IOException {
    for (int k = MIN_LEN + DELTA; k <= MAX_LEN; k += DELTA) {
      WriteType op = WriteType.THROUGH;
      int fileId = TestUtils.createByteFile(mTfs, "/root/testFile_" + k + "_" + op, op, k);

      TachyonFile file = mTfs.getFile(fileId);
      InStream is = file.getInStream(ReadType.NO_CACHE);
      if (k == 0) {
        Assert.assertTrue(is instanceof EmptyBlockInStream);
      } else {
        Assert.assertTrue(is instanceof RemoteBlockInStream);
      }

      is.seek(k / 3);
      Assert.assertEquals(k / 3, is.read());
      is.seek(k / 2);
      Assert.assertEquals(k / 2, is.read());
      is.seek(k / 4);
      Assert.assertEquals(k / 4, is.read());
      is.close();
    }
  }
  /**
   * Test <code>void seek(long pos)</code>.
   *
   * @throws IOException
   */
  @Test
  public void seekExceptionTest() throws IOException {
    for (int k = MIN_LEN; k <= MAX_LEN; k += DELTA) {
      WriteType op = WriteType.THROUGH;
      int fileId = TestUtils.createByteFile(mTfs, "/root/testFile_" + k + "_" + op, op, k);

      TachyonFile file = mTfs.getFile(fileId);
      InStream is = file.getInStream(ReadType.NO_CACHE);
      if (k == 0) {
        Assert.assertTrue(is instanceof EmptyBlockInStream);
      } else {
        Assert.assertTrue(is instanceof RemoteBlockInStream);
      }

      try {
        is.seek(-1);
      } catch (IOException e) {
        // This is expected
        continue;
      }
      is.close();
      throw new IOException("Except seek IOException");
    }
  }