'use strict';

/**
 * update_multifield_multiupdate.js
 *
 * Does updates that affect multiple fields on multiple documents.
 * The collection has an index for each field, and a multikey index for all fields.
 */
load('jstests/concurrency/fsm_libs/extend_workload.js');         // for extendWorkload
load('jstests/concurrency/fsm_workloads/update_multifield.js');  // for $config

// For isMongod and recordIdCanChangeOnUpdate.
load('jstests/concurrency/fsm_workload_helpers/server_types.js');

var $config = extendWorkload($config, function($config, $super) {

    $config.data.multi = true;

    $config.data.assertResult = function(res, db, collName, query) {
        assertAlways.eq(0, res.nUpserted, tojson(res));

        if (isMongod(db)) {
            if (!recordIdCanChangeOnUpdate(db)) {
                // If a document's RecordId cannot change, then we should not
                // have updated any document more than once, since the update
                // stage internally de-duplicates based on RecordId.
                assertWhenOwnColl.lte(this.numDocs, res.nMatched, tojson(res));
            } else {
                // If RecordIds can change, then there are no guarantees on how
                // many documents were updated.
                assertAlways.gte(res.nMatched, 0, tojson(res));
            }
        } else {  // mongos
            assertAlways.gte(res.nMatched, 0, tojson(res));
        }

        if (db.getMongo().writeMode() === 'commands') {
            assertWhenOwnColl.eq(res.nMatched, res.nModified, tojson(res));
        }

        var docs = db[collName].find().toArray();
        docs.forEach(function(doc) {
            assertWhenOwnColl.eq('number', typeof doc.z);
            assertWhenOwnColl.gt(doc.z, 0);
        });
    };

    return $config;
});