ensure that timeoutMS is passed down correctly

Author: W-A-James

src/collection.ts

@@ -254,6 +254,10 @@ export class Collection<TSchema extends Document = Document> {
     this.s.collectionHint = normalizeHintField(v);
   }
 
+  get timeoutMS(): number | undefined {
+    return this.s.options.timeoutMS;
+  }
+
   /**
    * Inserts a single document into MongoDB. If documents passed in do not contain the **_id** field,
    * one will be added to each of the documents missing it by the driver, mutating the document. This behavior

src/db.ts

@@ -222,6 +222,10 @@ export class Db {
     return this.s.namespace.toString();
   }
 
+  get timeoutMS(): number | undefined {
+    return this.s.options?.timeoutMS;
+  }
+
   /**
    * Create a new collection on a server with the specified options. Use this to create capped collections.
    * More information about command options available at https://www.mongodb.com/docs/manual/reference/command/create/

src/operations/command.ts

@@ -64,6 +64,7 @@ export interface OperationParent {
   writeConcern?: WriteConcern;
   readPreference?: ReadPreference;
   bsonOptions?: BSONSerializeOptions;
+  timeoutMS?: number;
 }
 
 /** @internal */

src/utils.ts

@@ -514,6 +514,10 @@ export function resolveOptions<T extends CommandOperationOptions>(
     result.readPreference = readPreference;
   }
 
+  const timeoutMS = options?.timeoutMS;
+
+  result.timeoutMS = timeoutMS ?? parent?.timeoutMS;
+
   return result;
 }