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"""
Testing hook for verifying members of a replica set have matching
oplogs.
"""

from __future__ import absolute_import

import os.path

from . import jsfile


class CheckReplOplogs(jsfile.DataConsistencyHook):
    """
    Checks that local.oplog.rs matches on the primary and secondaries.
    """

    def __init__(self, hook_logger, fixture, shell_options=None):
        description = "Check oplogs of all replica set members"
        js_filename = os.path.join("jstests", "hooks", "run_check_repl_oplogs.js")
        jsfile.JSHook.__init__(self, hook_logger, fixture, js_filename, description,
                               shell_options=shell_options)