chore: try with existing cursor logic

Author: durran

src/collection.ts

@@ -555,6 +555,9 @@ export class Collection<TSchema extends Document = Document> {
     options: Omit<FindOneOptions, ''> & Abortable = {}
   ): Promise<WithId<TSchema> | null> {
     const opts = { ...options };
+    // Explicitly set the limit to 1 and singleBatch to true for all commands, per the spec.
+    // noCursorTimeout must be unset as well as batchSize.
+    // See: https://github.com/mongodb/specifications/blob/master/source/crud/crud.md#findone-api-details
     opts.singleBatch = true;
     if (opts.noCursorTimeout != null) {
       delete opts.noCursorTimeout;
@@ -564,16 +567,6 @@ export class Collection<TSchema extends Document = Document> {
     }
     const cursor = this.find(filter, opts).limit(1);
     return await cursor.next();
-    //await cursor.close();
-    //return await executeOperation(
-    //  this.client,
-    //  new FindOneOperation(
-    //    this.s.db,
-    //    this.collectionName,
-    //    filter,
-    //    resolveOptions(this as TODO_NODE_3286, options)
-    //  )
-    //);
   }
 
   /**

test/integration/retryable-reads/retryable_reads.spec.test.ts

@@ -14,7 +14,7 @@ const UNIMPLEMENTED_APIS = [
 
 const skippedTests = ['collection.listIndexes succeeds after retryable handshake network error'];
 
-describe.only('Retryable Reads (unified)', function () {
+describe('Retryable Reads (unified)', function () {
   runUnifiedSuite(loadSpecTests(path.join('retryable-reads', 'unified')), ({ description }) => {
     for (const apiName of UNIMPLEMENTED_APIS) {
       if (description.toLowerCase().includes(apiName.toLowerCase())) {