#!/usr/bin/env python
#
# Public Domain 2014-present MongoDB, Inc.
# Public Domain 2008-2014 WiredTiger, Inc.
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# This is free and unencumbered software released into the public domain.
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# test_dupc.py
#       test cursor duplication
#

import os, time
import wiredtiger, wttest
from wtdataset import SimpleDataSet, ComplexDataSet
from wtscenario import make_scenarios

# Test session.open_cursor with cursor duplication.
class test_duplicate_cursor(wttest.WiredTigerTestCase):
    name = 'test_dupc'
    nentries = 1000

    scenarios = make_scenarios([
        ('file-r', dict(uri='file:', fmt='r')),
        ('file-S', dict(uri='file:', fmt='S')),
        ('table-r', dict(uri='table:', fmt='r')),
        ('table-S', dict(uri='table:', fmt='S'))
    ])

    # Iterate through an object, duplicate the cursor and checking that it
    # matches the original and is set to the same record.
    def iterate(self, uri, ds):
        cursor = self.session.open_cursor(uri, None, None)
        next = 0
        while True:
            nextret = cursor.next()
            if nextret != 0:
                break
            next += 1
            self.assertEqual(cursor.get_key(), ds.key(next))
            dupc = self.session.open_cursor(None, cursor, None)
            self.assertEqual(cursor.compare(dupc), 0)
            self.assertEqual(dupc.get_key(), ds.key(next))
            cursor.close()
            cursor = dupc
        self.assertEqual(next, self.nentries)
        self.assertEqual(nextret, wiredtiger.WT_NOTFOUND)
        cursor.close()

    def test_duplicate_cursor(self):
        uri = self.uri + self.name

        # A simple, one-file file or table object.
        ds = SimpleDataSet(self, uri, self.nentries, key_format=self.fmt)
        ds.populate()
        self.iterate(uri, ds)
        self.session.drop(uri, None)

        # A complex, multi-file table object.
        if self.uri == "table:":
            ds = ComplexDataSet(self, uri, self.nentries, key_format=self.fmt)
            ds.populate()
            self.iterate(uri, ds)
            self.session.drop(uri, None)

if __name__ == '__main__':
    wttest.run()