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'use strict';
/**
* explain_remove.js
*
* Runs explain() and remove() on a collection.
*/
load('jstests/concurrency/fsm_libs/extend_workload.js'); // for extendWorkload
load('jstests/concurrency/fsm_workloads/explain.js'); // for $config
var $config = extendWorkload($config, function($config, $super) {
$config.states = Object.extend({
explainSingleRemove: function explainSingleRemove(db, collName) {
var res = db[collName]
.explain('executionStats')
.remove({i: this.nInserted}, /* justOne */ true);
assertAlways.commandWorked(res);
assertWhenOwnColl(function() {
assertWhenOwnColl.eq(1, res.executionStats.totalDocsExamined);
// the document should not have been deleted.
assertWhenOwnColl.eq(1, db[collName].find({i: this.nInserted}).itcount());
}.bind(this));
},
explainMultiRemove: function explainMultiRemove(db, collName) {
var res =
db[collName].explain('executionStats').remove({i: {$lte: this.nInserted / 2}});
assertAlways.commandWorked(res);
assertWhenOwnColl(function() {
assertWhenOwnColl.eq(this.nInserted / 2 + 1,
explain.executionStats.totalDocsExamined);
// no documents should have been deleted
assertWhenOwnColl.eq(this.nInserted, db[collName].itcount());
}.bind(this));
}
},
$super.states);
$config.transitions = Object.extend(
{explain: $config.data.assignEqualProbsToTransitions($config.states)}, $super.transitions);
return $config;
});
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