test: use fake timer on executeJob timeout tests

Author: ian-wd

tests/Worker.test.js

@@ -1,5 +1,5 @@
 // Define globals for eslint.
-/* global describe it */
+/* global describe it, jest */
 
 // Load dependencies
 import should from 'should'; // eslint-disable-line no-unused-vars
@@ -111,41 +111,46 @@ describe('Models/Worker', function() {
   /**
    * TODO: fix this test
    */
-  // it('#executeJob() timeout logic should work if timeout is set.', async () => {
-  //   const jobTimeout = 100;
-
-  //   const job = {
-  //     id: 'd21dca87-435c-4533-b0af-ed9844e6b827',
-  //     name: 'test-job-one',
-  //     payload: JSON.stringify({
-  //       key: 'value'
-  //     }),
-  //     data: JSON.stringify({
-  //       attempts: 1
-  //     }),
-  //     priority: 0,
-  //     active: false,
-  //     timeout: jobTimeout,
-  //     created: new Date(),
-  //     failed: null
-  //   };
-
-  //   const worker = new Worker();
-  //   worker.addWorker('test-job-one', async () => {
-  //     return new Promise((resolve) => {
-  //       setTimeout(() => {
-  //         resolve(true);
-  //       }, 1000);
-  //     });
-  //   });
-
-  //   try {
-  //     await worker.executeJob(job);
-  //     throw new Error('execute job should have thrown an error due to timeout.');
-  //   } catch (error) {
-  //     error.should.deepEqual(new Error('TIMEOUT: Job id: ' + job.id + ' timed out in ' + jobTimeout  + 'ms.'));
-  //   }
-  // });
+  it('#executeJob() timeout logic should work if timeout is set.', async () => {
+    jest.useFakeTimers('modern');
+    const jobTimeout = 100;
+
+    const job = {
+      id: 'd21dca87-435c-4533-b0af-ed9844e6b827',
+      name: 'test-job-one',
+      payload: JSON.stringify({
+        key: 'value'
+      }),
+      data: JSON.stringify({
+        attempts: 1
+      }),
+      priority: 0,
+      active: false,
+      timeout: jobTimeout,
+      created: new Date(),
+      failed: null
+    };
+
+    const worker = new Worker();
+    worker.addWorker('test-job-one', async () => {
+      return new Promise((resolve) => {
+        setTimeout(() => {
+          resolve(true);
+        }, 1000);
+
+        // advance timer by 1sec
+        jest.advanceTimersByTime(1000);
+      });
+    });
+
+    try {
+      await worker.executeJob(job);
+      throw new Error('execute job should have thrown an error due to timeout.');
+    } catch (error) {
+      error.should.deepEqual(new Error('TIMEOUT: Job id: ' + job.id + ' timed out in ' + jobTimeout  + 'ms.'));
+    }
+    jest.useRealTimers('modern');
+  });
 
   it('#executeJob() should execute a job correctly.', async () => {
     let counter = 0;