fixup! test: ensure assertions are reached on more tests

Author: aduh95

test/parallel/test-diagnostics-channel-module-require.js

@@ -8,7 +8,7 @@ const events = [];
 let lastEvent;
 
 function track(name) {
-  return common.mustCall((event) =>{
+  return common.mustCall((event) => {
     // Verify every event after the first is the same object
     if (events.length) {
       assert.strictEqual(event, lastEvent);

test/parallel/test-worker-arraybuffer-zerofill.js

@@ -30,10 +30,10 @@ describe('Allocating uninitialized ArrayBuffers ...', () => {
 
     w.on('online', fn);
 
-    const countdown = new Countdown(100, () => {
+    const countdown = new Countdown(100, common.mustCallAtLeast(() => {
       w.terminate();
       assert(fn.mock.calls.length > 0);
-    });
+    }));
 
     w.on('message', (sum) => {
       assert.strictEqual(sum, 0);

test/parallel/test-worker-message-port-transfer-self.js

@@ -34,11 +34,11 @@ port2.onmessage = common.mustCall((message) => {
 
   port1.close();
 
-  tick(10, () => {
+  tick(10, common.mustCall(() => {
     const inspectedPort1 = util.inspect(port1);
     const inspectedPort2 = util.inspect(port2);
     assert(inspectedPort1.includes('active: false'), inspectedPort1);
     assert(inspectedPort2.includes('active: false'), inspectedPort2);
-  });
+  }, 10));
 });
 port1.postMessage(2);