add missing unit tests (#19419)

Co-authored-by: Hakwoo Kim <[email protected]>

feature-libs/cart/base/core/facade/cart-access-code.service.spec.ts

@@ -1 +1,65 @@
-// TODO: Add unit tests
+/*
+ * SPDX-FileCopyrightText: 2024 SAP Spartacus team <[email protected]>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { TestBed } from '@angular/core/testing';
+import { CartAccessCodeService } from './cart-access-code.service';
+import { CommandService, QueryService } from '@spartacus/core';
+import { CartAccessCodeConnector } from '../connectors';
+import { of } from 'rxjs';
+import createSpy = jasmine.createSpy;
+
+describe('CartAccessCodeService', () => {
+  let service: CartAccessCodeService;
+  let commandService: CommandService;
+  let cartAccessCodeConnector: CartAccessCodeConnector;
+
+  beforeEach(() => {
+    const commandServiceMock = {
+      create: createSpy().and.callFake((fn: any) => ({
+        execute: fn,
+      })),
+    };
+
+    const cartAccessCodeConnectorMock = {
+      getCartAccessCode: createSpy().and.returnValue(of('mockAccessCode')),
+    };
+
+    TestBed.configureTestingModule({
+      providers: [
+        CartAccessCodeService,
+        { provide: CommandService, useValue: commandServiceMock },
+        {
+          provide: CartAccessCodeConnector,
+          useValue: cartAccessCodeConnectorMock,
+        },
+        QueryService,
+      ],
+    });
+
+    service = TestBed.inject(CartAccessCodeService);
+    commandService = TestBed.inject(CommandService);
+    cartAccessCodeConnector = TestBed.inject(CartAccessCodeConnector);
+  });
+
+  it('should be created', () => {
+    expect(service).toBeTruthy();
+  });
+
+  it('should call CartAccessCodeConnector.getCartAccessCode when getCartAccessCode is executed', () => {
+    const userId = 'testUserId';
+    const cartId = 'testCartId';
+
+    service.getCartAccessCode(userId, cartId).subscribe((result) => {
+      expect(result).toBe('mockAccessCode');
+    });
+
+    expect(cartAccessCodeConnector.getCartAccessCode).toHaveBeenCalledWith(
+      userId,
+      cartId
+    );
+    expect(commandService.create).toHaveBeenCalled();
+  });
+});