@Override
  public InterpreterResult interpret(String st, InterpreterContext context) {
    String[] lines = splitAndRemoveEmpty(st, "\n");
    return interpret(lines, context);
  }
@Test
  void catTest() throws IOException {
    FileSystemTestUtils.createByteFile(fs, "/testFile", WritePType.MUST_CACHE, 10, 10);
    InterpreterResult output = alluxioInterpreter.interpret("cat /testFile", null);

    byte[] expected = BufferUtils.getIncreasingByteArray(10);

    assertEquals(Code.SUCCESS, output.code());
    assertArrayEquals(expected,
            output.message().get(0).getData().substring(0,
                    output.message().get(0).getData().length() - 1).getBytes());
  }