fix(core): update

test/test.timer.both.ts

@@ -0,0 +1,26 @@
+// tslint:disable-next-line:no-implicit-dependencies
+import { expect, tap } from '@pushrocks/tapbundle';
+
+import { Timer } from '../ts/index';
+
+let testTimer: Timer;
+
+tap.test('should create a valid timer', async () => {
+  testTimer = new Timer(1000);
+  expect(testTimer).to.be.instanceof(Timer);
+});
+
+tap.test('should start timer', async () => {
+  testTimer.start();
+  await testTimer.completed;
+});
+
+tap.test('should reset a timer', async () => {
+  testTimer.reset();
+  testTimer.start();
+  testTimer.reset();
+  testTimer.start();
+  await testTimer.completed;
+});
+
+tap.start();