Added tests for redux slices

client/test/unitTests/Util/Store.test.ts

@@ -0,0 +1,62 @@
+import menuReducer, { openMenu, closeMenu } from 'store/menu.slice';
+import authReducer, { setUserName } from 'store/auth.slice';
+
+describe('reducers', () => {
+  let initialState: {
+    menu: {
+      isOpen: boolean;
+    };
+    auth: {
+      userName: string | undefined;
+    };
+  };
+
+  beforeEach(() => {
+    initialState = {
+      menu: {
+        isOpen: false,
+      },
+      auth: {
+        userName: undefined,
+      },
+    };
+  });
+
+  describe('menu reducer', () => {
+    const itShouldHandleMenuActions = (
+      actionCreator: () => { type: string },
+      expectedValue: boolean
+    ) => {
+      const newState = menuReducer(initialState.menu, actionCreator());
+      expect(newState.isOpen).toBe(expectedValue);
+    };
+
+    it('menuReducer should return the initial menu state when an unknown action type is passed with an undefined state', () => {
+      expect(menuReducer(undefined, { type: 'unknown' })).toEqual(
+        initialState.menu
+      );
+    });
+
+    it('should handle openMenu', () => {
+      itShouldHandleMenuActions(openMenu, true);
+    });
+
+    it('should handle closeMenu', () => {
+      initialState.menu.isOpen = true;
+      itShouldHandleMenuActions(closeMenu, false);
+    });
+  });
+
+  describe('auth reducer', () => {
+    it('authReducer should return the initial menu state when an unknown action type is passed with an undefined state', () => {
+      expect(authReducer(undefined, { type: 'unknown' })).toEqual(
+        initialState.auth
+      );
+    });
+
+    it('should handle setUserName', () => {
+      const newState = authReducer(initialState.auth, setUserName('user1'));
+      expect(newState.userName).toBe('user1');
+    });
+  });
+});