fix: tests updated

Author: vip-git

babel.config.js

@@ -0,0 +1,6 @@
+module.exports = {
+    presets: [
+      ['@babel/preset-env', {targets: {node: 'current'}}],
+      '@babel/preset-typescript',
+    ],
+};

index.test.ts

@@ -0,0 +1,37 @@
+import useContextDevTools from './index';
+
+const devInit = jest.fn();
+const devSend = jest.fn();
+const devDisconnect = jest.fn();
+
+const devToolsMock = {
+    connect: jest.fn(() => ({
+        init: devInit,
+        send: devSend,
+        disconnect: devDisconnect,
+    })),
+};
+
+describe('Dev Tools Extension', () => {
+    (window as any).__REDUX_DEVTOOLS_EXTENSION__ = devToolsMock;
+    const dispatchFn = jest.fn();
+    const dispatchContext = useContextDevTools(dispatchFn);
+
+    test('Should initialize devTools', () => {
+        dispatchContext.sendDispatch({});
+        expect(dispatchFn).toHaveBeenCalledWith({});
+    });
+
+    test('Should be able to send updated state', () => {
+        dispatchContext.sendUpdatedState({});
+        expect(devInit).toHaveBeenCalled();
+        dispatchContext.sendUpdatedState({});
+        expect(devSend).toHaveBeenCalled();
+    });
+
+    test('Should be able to disconnect', () => {
+        dispatchContext.disconnectDevTools();
+        expect(devDisconnect).toHaveBeenCalled();
+    });
+})
+

index.ts

@@ -4,7 +4,7 @@ let isInitialized = false;
 let firstRender = false;
 let oldArgs = {};
 
-export const useContextDevTools = (dispatch: Function) => {
+const useContextDevTools = (dispatch: Function) => {
 	if (!isInitialized) {
 		devTools.current = (window as any).__REDUX_DEVTOOLS_EXTENSION__.connect();
 		isInitialized = true;
@@ -36,3 +36,5 @@ export const useContextDevTools = (dispatch: Function) => {
 		disconnectDevTools,
 	};
 };
+
+export default useContextDevTools;