chore: refactor schedule method in schedule.ts and add tests in pulse…

….spec.ts

src/pulse/schedule.ts

@@ -17,7 +17,7 @@ export const schedule = function schedule<T extends JobAttributesData>(
   this: Pulse,
   when: string | Date,
   names: string | string[],
-  data?: T,
+  data?: T
 ) {
   /**
    * Internal method that creates a job with given date
@@ -26,7 +26,11 @@ export const schedule = function schedule<T extends JobAttributesData>(
    * @param data data to send to job
    * @returns instance of new job
    */
-  const createJob = async <T extends JobAttributesData>(when: string | Date, name: string, data: T): Promise<Job<T>> => {
+  const createJob = async <T extends JobAttributesData>(
+    when: string | Date,
+    name: string,
+    data: T
+  ): Promise<Job<T>> => {
     const job = this.create(name, data);
 
     await job.schedule(when).save();
@@ -59,7 +63,7 @@ export const schedule = function schedule<T extends JobAttributesData>(
 
   if (typeof names === 'string') {
     debug('Pulse.schedule(%s, %O, [%O], cb)', when, names);
-    return createJob(when, names, data || {} as T);
+    return createJob(when, names, data || ({} as T));
   }
 
   if (Array.isArray(names)) {

test/unit/pulse.spec.ts

@@ -376,5 +376,26 @@ describe('Test Pulse', () => {
         expect(count).toBe(1);
       });
     });
+
+    describe('Test schedule method', () => {
+      test('creates and schedules a job', async () => {
+        await globalPulseInstance.schedule('2024-06-03T10:00:00Z', 'sendEmail', { to: 'some guy' });
+        const jobs = await globalPulseInstance.jobs({ name: 'sendEmail' });
+        expect(jobs.length).toBe(1);
+      });
+
+      test('creates and schedules multiple jobs', async () => {
+        await globalPulseInstance.schedule('2024-06-03T10:00:00Z', ['sendEmail', 'some job'], { to: 'some guy' });
+        const jobs = await globalPulseInstance.jobs();
+        expect(jobs.length).toBe(2);
+      });
+
+      test('checks if job is scheduled correctly', async () => {
+        await globalPulseInstance.schedule('2024-06-03T10:00:00Z', 'sendEmail', { to: 'some guy' });
+        const jobs = await globalPulseInstance.jobs({ name: 'sendEmail' });
+        const job = jobs[0];
+        expect(job.attrs.nextRunAt).toEqual(new Date('2024-06-03T10:00:00Z'));
+      });
+    });
   });
 });