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#!/usr/bin/env python
#
# Public Domain 2014-2016 MongoDB, Inc.
# Public Domain 2008-2014 WiredTiger, Inc.
#
# This is free and unencumbered software released into the public domain.
#
# Anyone is free to copy, modify, publish, use, compile, sell, or
# distribute this software, either in source code form or as a compiled
# binary, for any purpose, commercial or non-commercial, and by any
# means.
#
# In jurisdictions that recognize copyright laws, the author or authors
# of this software dedicate any and all copyright interest in the
# software to the public domain. We make this dedication for the benefit
# of the public at large and to the detriment of our heirs and
# successors. We intend this dedication to be an overt act of
# relinquishment in perpetuity of all present and future rights to this
# software under copyright law.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
#
# test_cursor08.py
# Log cursors with compression
#

import fnmatch, os, shutil, run, time
from suite_subprocess import suite_subprocess
from wiredtiger import stat, WiredTigerError
from wtscenario import multiply_scenarios, number_scenarios, check_scenarios
import wttest

class test_cursor08(wttest.WiredTigerTestCase, suite_subprocess):
    logmax = "100K"
    tablename = 'test_cursor08'
    uri = 'table:' + tablename
    nkeys = 500

    reopens = check_scenarios([
        ('regular', dict(reopen=False)),
        ('reopen', dict(reopen=True))
    ])
    compress = check_scenarios([
        ('nop', dict(compress='nop')),
        ('snappy', dict(compress='snappy')),
        ('zlib', dict(compress='zlib')),
        ('none', dict(compress='none')),
    ])
    scenarios = number_scenarios(multiply_scenarios('.', reopens, compress))
    # Load the compression extension, and enable it for logging.
    def conn_config(self, dir):
        return 'log=(archive=false,enabled,file_max=%s,' % self.logmax + \
            'compressor=%s),' % self.compress + \
            'transaction_sync="(method=dsync,enabled)",' + \
            self.extensionArg(self.compress)

    # Return the wiredtiger_open extension argument for a shared library.
    def extensionArg(self, name):
        if name == None or name == 'none':
            return ''

        testdir = os.path.dirname(__file__)
        extdir = os.path.join(run.wt_builddir, 'ext/compressors')
        extfile = os.path.join(
            extdir, name, '.libs', 'libwiredtiger_' + name + '.so')
        if not os.path.exists(extfile):
            self.skipTest('compression extension "' + extfile + '" not built')
        return ',extensions=["' + extfile + '"]'

    def test_log_cursor(self):
        # print "Creating %s with config '%s'" % (self.uri, self.create_params)
        create_params = 'key_format=i,value_format=S'
        self.session.create(self.uri, create_params)
        c = self.session.open_cursor(self.uri, None)

        # A binary value.
        value = u'\u0001\u0002abcd\u0003\u0004'

        self.session.begin_transaction()
        for k in range(self.nkeys):
            c[k] = value
        self.session.commit_transaction()
        c.close()

        if self.reopen:
            self.reopen_conn()

        # Check for these values via a log cursor
        c = self.session.open_cursor("log:", None)
        count = 0
        while c.next() == 0:
            # lsn.file, lsn.offset, opcount
            keys = c.get_key()
            # txnid, rectype, optype, fileid, logrec_key, logrec_value
            values = c.get_value()
            try:
                if value in str(values[5]):   # logrec_value
                    count += 1
            except:
                pass
        c.close()
        self.assertEqual(count, self.nkeys)

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