jstests/concurrency/fsm_workloads/drop_collection.js


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'use strict';

/**
 * drop_collection.js
 *
 * Repeatedly creates and drops a collection.
 */
var $config = (function() {

    var data = {
        // Use the workload name as a prefix for the collection name,
        // since the workload name is assumed to be unique.
        prefix: 'drop_collection'
    };

    var states = (function() {

        function uniqueCollectionName(prefix, tid, num) {
            return prefix + tid + '_' + num;
        }

        function init(db, collName) {
            this.num = 0;
        }

        function createAndDrop(db, collName) {
            // TODO: should we ever do something different?
            var myCollName = uniqueCollectionName(this.prefix, this.tid, this.num++);
            assertAlways.commandWorked(db.createCollection(myCollName));
            assertAlways(db[myCollName].drop());
        }

        return {
            init: init,
            createAndDrop: createAndDrop
        };

    })();

    var transitions = {
        init: {createAndDrop: 1},
        createAndDrop: {createAndDrop: 1}
    };

    return {
        threadCount: 10,
        iterations: 10,
        data: data,
        states: states,
        transitions: transitions
    };

})();