Added test cases to throttle

Author: ngoczwolinski

package.json

@@ -24,6 +24,7 @@
     "buildlegacy": "webpack --mode production",
     "devlegacy": "webpack --mode development --watch",
     "test": "jest --verbose --coverage",
+    "test-backend": "jest --verbose --coverage src/backend",
     "test-on": "./node_modules/.bin/jest $1",
     "docker-test-lint": "eslint --ext .js --ext .jsx src",
     "docs": "typedoc --json docs --inputFiles src/app --inputFiles src/backend --readme docs/readme.md",

src/backend/__tests__/throttle.test.ts

@@ -14,7 +14,7 @@ describe('throttle unit tests', () => {
   });
 
   it('should return a function', () => {
-    const result = throttle(() => {}, 1000);
+    const result = throttle(mockCallback, 1000);
     expect(typeof result).toBe('function');
   });
 
@@ -56,7 +56,9 @@ describe('throttle unit tests', () => {
     expect(mockCallback).toHaveBeenCalledTimes(2);
 
     throttledFunc();
-    jest.advanceTimersByTime(1500);
+    jest.advanceTimersByTime(100);
+    throttledFunc();
+    jest.advanceTimersByTime(901);
     expect(mockCallback).toHaveBeenCalledTimes(3);
   });
 });

src/backend/index.ts

@@ -12,7 +12,6 @@ import 'regenerator-runtime/runtime';
 import linkFiberInitialization from './routers/linkFiber';
 import timeJumpInitialization from './controllers/timeJump';
 import { Snapshot, Status, MsgData } from './types/backendTypes';
-import componentActionsRecord from './models/masterState';
 import routes from './models/routes';
 
 // * State snapshot object initialized here