public HeapFileIterator(TransactionId tid, HeapFile file) {
_transactionId = tid;
_file = file;
_currentPageId = 0;
_numPages = _file.numPages();
// System.out.println("numpages "+_numPages);
}
/** Unit test for HeapFile.numPages() */
@Test
public void numPages() throws Exception {
assertEquals(1, hf.numPages());
// assertEquals(1, empty.numPages());
}