test: re-add test case from #740

tests/cron.test.ts

@@ -1080,6 +1080,29 @@ describe('cron', () => {
 			job.stop();
 			expect(callback).toHaveBeenCalledTimes(1);
 		});
+
+		it('should create recurring job, setTime with actual date, start and run once (#739)', () => {
+			const callback = jest.fn();
+			const clock = sinon.useFakeTimers();
+
+			const job = new CronJob('0 0 20 * * *', callback);
+
+			const startDate = new Date(Date.now() + 5000);
+			job.setTime(new CronTime(startDate));
+
+			job.start();
+
+			clock.tick(5000);
+
+			expect(callback).toHaveBeenCalledTimes(1);
+
+			clock.tick(60000);
+
+			clock.restore();
+
+			expect(callback).toHaveBeenCalledTimes(1);
+			expect(job.running).toBe(false);
+		});
 	});
 
 	describe('nextDate(s)', () => {