#!/usr/bin/env python
#
# Public Domain 2014-2018 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_txn11.py
#   Transactions: Empty checkpoints and log archiving

import fnmatch, os, time
from suite_subprocess import suite_subprocess
from wtdataset import SimpleDataSet
import wttest

class test_txn11(wttest.WiredTigerTestCase, suite_subprocess):
    archive = 'true'
    conn_config = 'verbose=[transaction]'
    logmax = "100K"
    nrows = 700
    tablename = 'test_txn11'
    source_uri = 'table:' + tablename + "_src"
    uri = 'table:' + tablename

    # Turn on logging for this test.
    def conn_config(self):
        return 'log=(archive=%s,' % self.archive + \
            'enabled,file_max=%s,prealloc=false),' % self.logmax + \
            'transaction_sync=(enabled=false),'

    def run_checkpoints(self):
        orig_logs = fnmatch.filter(os.listdir(self.home), "*gerLog*")
        checkpoints = 0
        sorig = set(orig_logs)
        while checkpoints < 500:
            self.session.checkpoint()
            cur_logs = fnmatch.filter(os.listdir(self.home), "*gerLog*")
            scur = set(cur_logs)
            if scur.isdisjoint(sorig):
                break
            checkpoints += 1
        return

    def test_ops(self):
        # Populate a table
        SimpleDataSet(self, self.source_uri, self.nrows).populate()

        # Run forced checkpoints
        self.run_checkpoints()

        self.archive = 'false'
        # Close and reopen the connection
        self.reopen_conn()

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