diff --git a/npm/ng-packs/package.json b/npm/ng-packs/package.json
index f432ab97d9..caf342491a 100644
--- a/npm/ng-packs/package.json
+++ b/npm/ng-packs/package.json
@@ -13,9 +13,9 @@
     "@abp/ng.feature-management": "^0.9.0",
     "@abp/ng.permission-management": "^0.9.0",
     "@abp/ng.theme.shared": "^0.9.0",
+    "@angular-builders/jest": "^8.2.0",
     "@angular-devkit/build-angular": "~0.803.6",
     "@angular-devkit/build-ng-packagr": "~0.803.6",
-    "@angular-builders/jest": "^8.2.0",
     "@angular/animations": "~8.2.8",
     "@angular/cdk": "^8.2.2",
     "@angular/cli": "~8.3.6",
diff --git a/npm/ng-packs/packages/core/src/lib/tests/api.interceptor.spec.ts b/npm/ng-packs/packages/core/src/lib/tests/api.interceptor.spec.ts
new file mode 100644
index 0000000000..3e5e3aa96a
--- /dev/null
+++ b/npm/ng-packs/packages/core/src/lib/tests/api.interceptor.spec.ts
@@ -0,0 +1,74 @@
+import { HttpRequest } from '@angular/common/http';
+import { SpyObject } from '@ngneat/spectator';
+import { createServiceFactory, SpectatorService } from '@ngneat/spectator/jest';
+import { Store } from '@ngxs/store';
+import { OAuthService } from 'angular-oauth2-oidc';
+import { Subject, timer } from 'rxjs';
+import { ApiInterceptor } from '../interceptors';
+import { StartLoader, StopLoader } from '../actions';
+
+describe('ApiInterceptor', () => {
+  let spectator: SpectatorService<ApiInterceptor>;
+  let interceptor: ApiInterceptor;
+  let store: SpyObject<Store>;
+  let oauthService: SpyObject<OAuthService>;
+
+  const createService = createServiceFactory({
+    service: ApiInterceptor,
+    mocks: [OAuthService, Store],
+  });
+
+  beforeEach(() => {
+    spectator = createService();
+    interceptor = spectator.service;
+    store = spectator.get(Store);
+    oauthService = spectator.get(OAuthService);
+  });
+
+  it('should add headers to http request', done => {
+    oauthService.getAccessToken.andReturn('ey892mkwa8^2jk');
+    store.selectSnapshot.andReturn({ id: 'test' });
+
+    const request = new HttpRequest('GET', 'https://abp.io');
+    const handleRes$ = new Subject();
+
+    const handler = {
+      handle: (req: HttpRequest<any>) => {
+        expect(req.headers.get('Authorization')).toEqual('Bearer ey892mkwa8^2jk');
+        expect(req.headers.get('Accept-Language')).toEqual({ id: 'test' });
+        expect(req.headers.get('__tenant')).toEqual('test');
+        done();
+        return handleRes$;
+      },
+    };
+
+    interceptor.intercept(request, handler as any);
+
+    handleRes$.next();
+    handleRes$.complete();
+  });
+
+  it('should dispatch the loader', done => {
+    const spy = jest.spyOn(store, 'dispatch');
+
+    const request = new HttpRequest('GET', 'https://abp.io');
+    const handleRes$ = new Subject();
+
+    const handler = {
+      handle: (req: HttpRequest<any>) => {
+        return handleRes$;
+      },
+    };
+
+    interceptor.intercept(request, handler as any).subscribe();
+
+    handleRes$.next();
+    handleRes$.complete();
+
+    timer(0).subscribe(() => {
+      expect(spy.mock.calls[0][0] instanceof StartLoader).toBeTruthy();
+      expect(spy.mock.calls[1][0] instanceof StopLoader).toBeTruthy();
+      done();
+    });
+  });
+});