collection_uuid_drop.js

/**
 * Tests the collectionUUID parameter of the drop command.
 *
 * @tags: [
 *   requires_fcv_60,
 *   requires_non_retryable_commands,
 *   # Not prepared to handle changes to collections UUID
 *   # due to background activity (e.g. *Resharding)
 *   assumes_stable_collection_uuid,
 * ]
 */
const testDB = db.getSiblingDB(jsTestName());
assert.commandWorked(testDB.dropDatabase());
const coll = testDB["coll"];

const createCollection = function(coll) {
    assert.commandWorked(coll.insert({_id: 0}));
    const uuid = assert.commandWorked(testDB.runCommand({listCollections: 1}))
                     .cursor.firstBatch.find(c => c.name === coll.getName())
                     .info.uuid;
    return uuid;
};

// The command fails when the provided UUID does not correspond to an existing collection.
let uuid = createCollection(coll);
const nonexistentUUID = UUID();
let res = assert.commandFailedWithCode(
    testDB.runCommand({drop: coll.getName(), collectionUUID: nonexistentUUID}),
    ErrorCodes.CollectionUUIDMismatch);
assert.eq(res.db, testDB.getName());
assert.eq(res.collectionUUID, nonexistentUUID);
assert.eq(res.expectedCollection, coll.getName());
assert.eq(res.actualCollection, null);

// The command fails when the provided UUID corresponds to a different collection.
const coll2 = testDB['coll_2'];
assert.commandWorked(coll2.insert({_id: 1}));
res = assert.commandFailedWithCode(testDB.runCommand({drop: coll2.getName(), collectionUUID: uuid}),
                                   ErrorCodes.CollectionUUIDMismatch);
assert.eq(res.db, testDB.getName());
assert.eq(res.collectionUUID, uuid);
assert.eq(res.expectedCollection, coll2.getName());
assert.eq(res.actualCollection, coll.getName());

// Only collections in the same database are specified by actualCollection.
const otherDB = testDB.getSiblingDB(testDB.getName() + '_2');
assert.commandWorked(otherDB.dropDatabase());
const coll3 = otherDB['coll_3'];
assert.commandWorked(coll3.insert({_id: 2}));
res =
    assert.commandFailedWithCode(otherDB.runCommand({drop: coll3.getName(), collectionUUID: uuid}),
                                 ErrorCodes.CollectionUUIDMismatch);
assert.eq(res.db, otherDB.getName());
assert.eq(res.collectionUUID, uuid);
assert.eq(res.expectedCollection, coll3.getName());
assert.eq(res.actualCollection, null);

// The command fails when the provided UUID corresponds to a different collection, even if the
// provided namespace does not exist.
assert.commandWorked(testDB.runCommand({drop: coll2.getName()}));
res = assert.commandFailedWithCode(testDB.runCommand({drop: coll2.getName(), collectionUUID: uuid}),
                                   ErrorCodes.CollectionUUIDMismatch);
assert.eq(res.db, testDB.getName());
assert.eq(res.collectionUUID, uuid);
assert.eq(res.expectedCollection, coll2.getName());
assert.eq(res.actualCollection, coll.getName());
assert(!testDB.getCollectionNames().includes(coll2.getName()));

// The command fails with CollectionUUIDMismatch even if the database does not exist.
const nonexistentDB = testDB.getSiblingDB(testDB.getName() + '_nonexistent');
res = assert.commandFailedWithCode(
    nonexistentDB.runCommand({drop: 'nonexistent', collectionUUID: uuid}),
    ErrorCodes.CollectionUUIDMismatch);
assert.eq(res.db, nonexistentDB.getName());
assert.eq(res.collectionUUID, uuid);
assert.eq(res.expectedCollection, 'nonexistent');
assert.eq(res.actualCollection, null);

// The command fails when the provided UUID corresponds to a different collection, even if the
// provided namespace is a view.
const view = 'view';
assert.commandWorked(testDB.createView(view, coll.getName(), []));
res = assert.commandFailedWithCode(testDB.runCommand({drop: view, collectionUUID: uuid}),
                                   ErrorCodes.CollectionUUIDMismatch);
assert.eq(res.db, testDB.getName());
assert.eq(res.collectionUUID, uuid);
assert.eq(res.expectedCollection, view);
assert.eq(res.actualCollection, coll.getName());

// The command succeeds when the correct UUID is provided.
assert.commandWorked(testDB.runCommand({drop: coll.getName(), collectionUUID: uuid}));