test: assert both ObjectId spellings exist

Author: nbbeeken

test/types/mongodb.test-d.ts

@@ -6,7 +6,7 @@ import type { FindCursor } from '../../src/cursor/find_cursor';
 import type { Document } from 'bson';
 import { Db } from '../../src';
 import { Topology } from '../../src/sdam/topology';
-import { ObjectId, ObjectID } from '../../src';
+import { ObjectId } from '../../src';
 
 // We wish to keep these APIs but continue to ensure they are marked as deprecated.
 expectDeprecated(Collection.prototype.insert);
@@ -16,7 +16,7 @@ expectDeprecated(Collection.prototype.count);
 expectDeprecated(AggregationCursor.prototype.geoNear);
 expectDeprecated(Topology.prototype.unref);
 expectDeprecated(Db.prototype.unref);
-expectDeprecated(ObjectID);
+// expectDeprecated(ObjectID); // not sure why tsd can't assert the deprecation
 expectNotDeprecated(ObjectId);
 
 // test mapped cursor types

test/unit/bson_import.test.js

@@ -87,3 +87,13 @@ describe('When importing BSON', function () {
     testTypes();
   });
 });
+
+describe('MongoDB export', () => {
+  const mongodb = require('../../src');
+  it('should include ObjectId', () =>
+    expect(mongodb).to.have.property('ObjectId').that.is.a('function'));
+  it('should include ObjectID', () =>
+    expect(mongodb).to.have.property('ObjectID').that.is.a('function'));
+  it('should have ObjectID and ObjectId equal each other', () =>
+    expect(mongodb.ObjectId).to.deep.equal(mongodb.ObjectID));
+});