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/**
* Tests that the collMod command disallows writes that introduce new duplicate keys and the option
* is persisted over restarts.
*
* @tags: [
* requires_fcv_60,
* requires_persistence,
* requires_replication,
* ]
*/
(function() {
'use strict';
const rst = new ReplSetTest({nodes: 1});
rst.startSet();
rst.initiate();
let primary = rst.getPrimary();
const collModIndexUniqueEnabled =
assert.commandWorked(primary.adminCommand({getParameter: 1, featureFlagCollModIndexUnique: 1}))
.featureFlagCollModIndexUnique.value;
if (!collModIndexUniqueEnabled) {
jsTestLog('Skipping test because the collMod unique index feature flag is disabled');
rst.stopSet();
return;
}
const collName = 'collmod_disallow_duplicates_step_up';
let db_primary = primary.getDB('test');
let coll_primary = db_primary.getCollection(collName);
// Sets 'prepareUnique' and checks that the index rejects duplicates.
coll_primary.drop();
assert.commandWorked(coll_primary.createIndex({a: 1}));
assert.commandWorked(coll_primary.insert({_id: 0, a: 1}));
assert.commandWorked(
db_primary.runCommand({collMod: collName, index: {keyPattern: {a: 1}, prepareUnique: true}}));
assert.commandFailedWithCode(coll_primary.insert({_id: 1, a: 1}), ErrorCodes.DuplicateKey);
// Restarts the primary and checks the index spec is persisted.
rst.restart(primary);
rst.waitForPrimary();
primary = rst.getPrimary();
db_primary = primary.getDB('test');
coll_primary = db_primary.getCollection(collName);
assert.commandFailedWithCode(coll_primary.insert({_id: 1, a: 1}), ErrorCodes.DuplicateKey);
// Converts the index to unique.
assert.commandWorked(
db_primary.runCommand({collMod: collName, index: {keyPattern: {a: 1}, unique: true}}));
const uniqueIndexes = coll_primary.getIndexes().filter(function(doc) {
return doc.unique && friendlyEqual(doc.key, {a: 1});
});
assert.eq(1, uniqueIndexes.length);
rst.stopSet();
})();
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