Fix incorrect timeout log on evaluate requests (#442)

Author: Fryuni

src/evaluator.ts

@@ -170,7 +170,7 @@ export class Evaluator {
             let timer: number | NodeJS.Timeout | undefined;
 
             if (timeout !== undefined) {
-                setTimeout(
+                timer = setTimeout(
                     () => {
                         const response: ErrorResponse = {
                             title: `Evaluation could not be completed in time for query "${reference}".`,

test/evaluator.test.ts

@@ -351,6 +351,8 @@ describe('An evaluator', () => {
 
         await expect(evaluator.evaluate(query, {timeout: 10})).resolves.toBe('Carol');
 
+        jest.advanceTimersByTime(11);
+
         expect(logger.error).not.toHaveBeenCalled();
     });