public void testEmpty() {
    OperationException oe = new OperationException();
    assertSame(OperationErrorType.GENERAL, oe.getType());
    assertEquals("OperationException: GENERAL", String.valueOf(oe));
  }
Test operation exception constructors and accessors and stuff.
src/test/java/net/spy/memcached/protocol/ascii/OperationExceptionTest.java