jstests/replsets/drop_collections_two_phase_apply_ops_rename.js


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/**
 * Test to ensure that using applyOps to rename a drop-pending collection is a no-op. The collection
 * remains in a drop-pending state. This is the same behavior as renaming a non-existent collection.
 */

(function() {
"use strict";

load("jstests/replsets/libs/two_phase_drops.js");  // For TwoPhaseDropCollectionTest.

// Set up a two phase drop test.
let testName = "drop_collection_two_phase_apply_ops_rename";
let dbName = testName;
let collName = "collToDrop";
let twoPhaseDropTest = new TwoPhaseDropCollectionTest(testName, dbName);

// Initialize replica set.
let replTest = twoPhaseDropTest.initReplSet();

// Check for 'system.drop' two phase drop support.
if (!twoPhaseDropTest.supportsDropPendingNamespaces()) {
    jsTestLog('Drop pending namespaces not supported by storage engine. Skipping test.');
    twoPhaseDropTest.stop();
    return;
}

// Create the collection that will be dropped.
twoPhaseDropTest.createCollection(collName);

// PREPARE collection drop.
twoPhaseDropTest.prepareDropCollection(collName);

try {
    // Rename drop-pending collection using applyOps with system.drop namespace.
    const dropPendingColl = twoPhaseDropTest.collectionIsPendingDrop(collName);
    const dropPendingCollName = dropPendingColl.name;
    const primary = replTest.getPrimary();
    const cmdNs = dbName + '.$cmd';
    const sourceNs = dbName + '.' + dropPendingCollName;
    const destNs = dbName + '.bar';
    const applyOpsCmdWithName = {
        applyOps: [{op: 'c', ns: cmdNs, o: {renameCollection: sourceNs, to: destNs}}]
    };
    TwoPhaseDropCollectionTest._testLog(
        'Attempting to rename collection using applyOps with system.drop namespace: ' +
        tojson(applyOpsCmdWithName));
    assert.commandWorked(primary.adminCommand(applyOpsCmdWithName));
    assert(twoPhaseDropTest.collectionIsPendingDrop(collName),
           'applyOps using collection name ' + dropPendingCollName +
               ' renamed drop-pending collection unexpectedly');
    assert(!twoPhaseDropTest.collectionExists(collName));

    // Rename drop-pending collection using applyOps with UUID.
    const dropPendingCollUuid = dropPendingColl.info.uuid;
    const applyOpsCmdWithUuid = {
        applyOps: [{
            op: 'c',
            ns: cmdNs,
            ui: dropPendingCollUuid,
            o: {renameCollection: dbName + '.ignored_collection_name', to: destNs}
        }]
    };
    TwoPhaseDropCollectionTest._testLog(
        'Attempting to rename collection using applyOps with UUID: ' + tojson(applyOpsCmdWithUuid));
    assert.commandWorked(primary.adminCommand(applyOpsCmdWithUuid));
    const dropPendingCollInfo = twoPhaseDropTest.collectionIsPendingDrop(collName);
    assert(dropPendingCollInfo,
           'applyOps using UUID ' + dropPendingCollUuid +
               ' renamed drop-pending collection unexpectedly');
    assert.eq(dropPendingCollUuid.hex(),
              dropPendingCollInfo.info.uuid.hex(),
              'drop pending collection UUID does not match UUID of original collection: ' +
                  tojson(dropPendingCollInfo));

    // COMMIT collection drop.
    twoPhaseDropTest.commitDropCollection(collName);
} finally {
    twoPhaseDropTest.stop();
}
}());