diff --git a/npm/ng-packs/packages/core/src/lib/core.module.ts b/npm/ng-packs/packages/core/src/lib/core.module.ts
index fd4a41e0f49..a661012ac7a 100644
--- a/npm/ng-packs/packages/core/src/lib/core.module.ts
+++ b/npm/ng-packs/packages/core/src/lib/core.module.ts
@@ -1,4 +1,4 @@
-import { APP_BASE_HREF, CommonModule } from '@angular/common';
+import { CommonModule } from '@angular/common';
 import { HttpClientModule, HttpClientXsrfModule, HTTP_INTERCEPTORS } from '@angular/common/http';
 import { APP_INITIALIZER, Injector, ModuleWithProviders, NgModule } from '@angular/core';
 import { FormsModule, ReactiveFormsModule } from '@angular/forms';
@@ -24,7 +24,7 @@ import { RoutesHandler } from './handlers/routes.handler';
 import { ApiInterceptor } from './interceptors/api.interceptor';
 import { LocalizationModule } from './localization.module';
 import { ABP } from './models/common';
-import { LocalizationPipe, MockLocalizationPipe } from './pipes/localization.pipe';
+import { LocalizationPipe } from './pipes/localization.pipe';
 import { SortPipe } from './pipes/sort.pipe';
 import { LocaleProvider } from './providers/locale.provider';
 import { LocalizationService } from './services/localization.service';
@@ -121,17 +121,6 @@ export class BaseCoreModule {}
 })
 export class RootCoreModule {}
 
-/**
- * TestCoreModule is the module that will be used in tests
- * and it provides mock alternatives
- */
-@NgModule({
-  exports: [RouterModule, BaseCoreModule, MockLocalizationPipe],
-  imports: [RouterModule.forRoot([], { relativeLinkResolution: 'legacy' }), BaseCoreModule],
-  declarations: [MockLocalizationPipe],
-})
-export class TestCoreModule {}
-
 /**
  * CoreModule is the module that is publicly available
  */
@@ -141,19 +130,6 @@ export class TestCoreModule {}
   providers: [LocalizationPipe],
 })
 export class CoreModule {
-  static forTest({ baseHref = '/' } = {} as ABP.Test): ModuleWithProviders<TestCoreModule> {
-    return {
-      ngModule: TestCoreModule,
-      providers: [
-        { provide: APP_BASE_HREF, useValue: baseHref },
-        {
-          provide: LocalizationPipe,
-          useClass: MockLocalizationPipe,
-        },
-      ],
-    };
-  }
-
   static forRoot(options = {} as ABP.Root): ModuleWithProviders<RootCoreModule> {
     return {
       ngModule: RootCoreModule,
diff --git a/npm/ng-packs/packages/core/src/lib/models/common.ts b/npm/ng-packs/packages/core/src/lib/models/common.ts
index 652cc07ea3e..88bd75c027e 100644
--- a/npm/ng-packs/packages/core/src/lib/models/common.ts
+++ b/npm/ng-packs/packages/core/src/lib/models/common.ts
@@ -1,5 +1,5 @@
 import { EventEmitter, Type } from '@angular/core';
-import { Router } from '@angular/router';
+import { Router, Routes } from '@angular/router';
 import { Subject } from 'rxjs';
 import { eLayoutType } from '../enums/common';
 import { Environment } from './environment';
@@ -12,8 +12,9 @@ export namespace ABP {
     sendNullsAsQueryParam?: boolean;
   }
 
-  export interface Test {
+  export interface Test extends Partial<Root> {
     baseHref?: Router;
+    routes?: Routes;
   }
 
   export type PagedResponse<T> = {
diff --git a/npm/ng-packs/packages/core/src/lib/pipes/localization.pipe.ts b/npm/ng-packs/packages/core/src/lib/pipes/localization.pipe.ts
index cc84cfebdd6..cf076d414c4 100644
--- a/npm/ng-packs/packages/core/src/lib/pipes/localization.pipe.ts
+++ b/npm/ng-packs/packages/core/src/lib/pipes/localization.pipe.ts
@@ -22,13 +22,3 @@ export class LocalizationPipe implements PipeTransform {
     );
   }
 }
-
-@Injectable()
-@Pipe({
-  name: 'abpLocalization',
-})
-export class MockLocalizationPipe implements PipeTransform {
-  transform(value: string | Config.LocalizationWithDefault = '', ..._: string[]) {
-    return typeof value === 'string' ? value : value.defaultValue;
-  }
-}
diff --git a/npm/ng-packs/packages/core/src/lib/utils/localization-utils.ts b/npm/ng-packs/packages/core/src/lib/utils/localization-utils.ts
index e9014a52db2..0e227134494 100644
--- a/npm/ng-packs/packages/core/src/lib/utils/localization-utils.ts
+++ b/npm/ng-packs/packages/core/src/lib/utils/localization-utils.ts
@@ -1,3 +1,4 @@
+import snq from 'snq';
 import { ApplicationLocalizationConfigurationDto } from '../proxy/volo/abp/asp-net-core/mvc/application-configurations/models';
 
 // This will not be necessary when only Angukar 9.1+ is supported
@@ -13,7 +14,7 @@ export function createLocalizer(localization: ApplicationLocalizationConfigurati
   return (resourceName: string, key: string, defaultValue: string) => {
     if (resourceName === '_') return key;
 
-    const resource = localization.values[resourceName];
+    const resource = snq(() => localization.values[resourceName]);
 
     if (!resource) return defaultValue;
 
diff --git a/npm/ng-packs/packages/core/testing/ng-package.json b/npm/ng-packs/packages/core/testing/ng-package.json
new file mode 100644
index 00000000000..e647bd0d3e5
--- /dev/null
+++ b/npm/ng-packs/packages/core/testing/ng-package.json
@@ -0,0 +1,7 @@
+{
+  "$schema": "../../../node_modules/ng-packagr/ng-package.schema.json",
+  "dest": "../../dist/core/testing",
+  "lib": {
+    "entryFile": "src/public-api.ts"
+  }
+}
diff --git a/npm/ng-packs/packages/core/testing/src/lib/core-testing.module.ts b/npm/ng-packs/packages/core/testing/src/lib/core-testing.module.ts
new file mode 100644
index 00000000000..5a43aa9a4c8
--- /dev/null
+++ b/npm/ng-packs/packages/core/testing/src/lib/core-testing.module.ts
@@ -0,0 +1,48 @@
+import {
+  ABP,
+  BaseCoreModule,
+  coreOptionsFactory,
+  CORE_OPTIONS,
+  LocalizationPipe,
+} from '@abp/ng.core';
+import { APP_BASE_HREF } from '@angular/common';
+import { ModuleWithProviders, NgModule } from '@angular/core';
+import { provideRoutes } from '@angular/router';
+import { RouterTestingModule } from '@angular/router/testing';
+import { MockLocalizationPipe } from './pipes/mock-localization.pipe';
+
+/**
+ * CoreTestingModule is the module that will be used in tests
+ * and it provides mock alternatives
+ */
+@NgModule({
+  exports: [RouterTestingModule, BaseCoreModule, MockLocalizationPipe],
+  imports: [RouterTestingModule, BaseCoreModule],
+  declarations: [MockLocalizationPipe],
+})
+export class CoreTestingModule {
+  static forTest(
+    { baseHref = '/', routes = [], ...options } = {} as ABP.Test,
+  ): ModuleWithProviders<CoreTestingModule> {
+    return {
+      ngModule: CoreTestingModule,
+      providers: [
+        { provide: APP_BASE_HREF, useValue: baseHref },
+        {
+          provide: 'CORE_OPTIONS',
+          useValue: options,
+        },
+        {
+          provide: CORE_OPTIONS,
+          useFactory: coreOptionsFactory,
+          deps: ['CORE_OPTIONS'],
+        },
+        {
+          provide: LocalizationPipe,
+          useClass: MockLocalizationPipe,
+        },
+        provideRoutes(routes),
+      ],
+    };
+  }
+}
diff --git a/npm/ng-packs/packages/core/testing/src/lib/pipes/index.ts b/npm/ng-packs/packages/core/testing/src/lib/pipes/index.ts
new file mode 100644
index 00000000000..60bb9b7dce5
--- /dev/null
+++ b/npm/ng-packs/packages/core/testing/src/lib/pipes/index.ts
@@ -0,0 +1 @@
+export * from './mock-localization.pipe';
diff --git a/npm/ng-packs/packages/core/testing/src/lib/pipes/mock-localization.pipe.ts b/npm/ng-packs/packages/core/testing/src/lib/pipes/mock-localization.pipe.ts
new file mode 100644
index 00000000000..302173cb0f2
--- /dev/null
+++ b/npm/ng-packs/packages/core/testing/src/lib/pipes/mock-localization.pipe.ts
@@ -0,0 +1,12 @@
+import { Config } from '@abp/ng.core';
+import { Injectable, Pipe, PipeTransform } from '@angular/core';
+
+@Injectable()
+@Pipe({
+  name: 'abpLocalization',
+})
+export class MockLocalizationPipe implements PipeTransform {
+  transform(value: string | Config.LocalizationWithDefault = '', ..._: string[]) {
+    return typeof value === 'string' ? value : value.defaultValue;
+  }
+}
diff --git a/npm/ng-packs/packages/core/testing/src/public-api.ts b/npm/ng-packs/packages/core/testing/src/public-api.ts
new file mode 100644
index 00000000000..8028a99aacc
--- /dev/null
+++ b/npm/ng-packs/packages/core/testing/src/public-api.ts
@@ -0,0 +1,2 @@
+export * from './lib/core-testing.module';
+export * from './lib/pipes';
diff --git a/npm/ng-packs/packages/theme-shared/src/lib/tests/confirmation.service.spec.ts b/npm/ng-packs/packages/theme-shared/src/lib/tests/confirmation.service.spec.ts
index 3cbdcbd7dec..88813c44dea 100644
--- a/npm/ng-packs/packages/theme-shared/src/lib/tests/confirmation.service.spec.ts
+++ b/npm/ng-packs/packages/theme-shared/src/lib/tests/confirmation.service.spec.ts
@@ -1,4 +1,4 @@
-import { CoreModule } from '@abp/ng.core';
+import { CoreTestingModule } from '@abp/ng.core/testing';
 import { NgModule } from '@angular/core';
 import { fakeAsync, tick } from '@angular/core/testing';
 import { createServiceFactory, SpectatorService } from '@ngneat/spectator/jest';
@@ -13,7 +13,7 @@ import { ConfirmationService } from '../services';
   exports: [ConfirmationComponent],
   entryComponents: [ConfirmationComponent],
   declarations: [ConfirmationComponent],
-  imports: [CoreModule.forTest()],
+  imports: [CoreTestingModule.forTest()],
 })
 export class MockModule {}
 
@@ -22,7 +22,7 @@ describe('ConfirmationService', () => {
   let service: ConfirmationService;
   const createService = createServiceFactory({
     service: ConfirmationService,
-    imports: [NgxsModule.forRoot(), CoreModule.forTest(), MockModule],
+    imports: [NgxsModule.forRoot(), CoreTestingModule.forTest(), MockModule],
   });
 
   beforeEach(() => {
diff --git a/npm/ng-packs/packages/theme-shared/src/lib/tests/error.handler.spec.ts b/npm/ng-packs/packages/theme-shared/src/lib/tests/error.handler.spec.ts
index e4fb8e3d37b..939f87e5eea 100644
--- a/npm/ng-packs/packages/theme-shared/src/lib/tests/error.handler.spec.ts
+++ b/npm/ng-packs/packages/theme-shared/src/lib/tests/error.handler.spec.ts
@@ -1,14 +1,14 @@
-import { CoreModule, RestOccurError } from '@abp/ng.core';
+import { RestOccurError } from '@abp/ng.core';
+import { CoreTestingModule } from '@abp/ng.core/testing';
 import { APP_BASE_HREF } from '@angular/common';
 import { HttpErrorResponse, HttpHeaders } from '@angular/common/http';
 import { Component, NgModule } from '@angular/core';
-import { NavigationError, ResolveEnd, RouterModule } from '@angular/router';
 import { createServiceFactory, SpectatorService } from '@ngneat/spectator/jest';
-import { Actions, NgxsModule, ofActionDispatched, Store } from '@ngxs/store';
+import { NgxsModule, Store } from '@ngxs/store';
 import { OAuthService } from 'angular-oauth2-oidc';
 import { of } from 'rxjs';
 import { HttpErrorWrapperComponent } from '../components/http-error-wrapper/http-error-wrapper.component';
-import { DEFAULT_ERROR_MESSAGES, ErrorHandler, DEFAULT_ERROR_LOCALIZATIONS } from '../handlers';
+import { DEFAULT_ERROR_LOCALIZATIONS, DEFAULT_ERROR_MESSAGES, ErrorHandler } from '../handlers';
 import { ConfirmationService } from '../services';
 import { httpErrorConfigFactory } from '../tokens/http-error.token';
 
@@ -16,7 +16,7 @@ import { httpErrorConfigFactory } from '../tokens/http-error.token';
   exports: [HttpErrorWrapperComponent],
   declarations: [HttpErrorWrapperComponent],
   entryComponents: [HttpErrorWrapperComponent],
-  imports: [CoreModule],
+  imports: [CoreTestingModule],
 })
 class MockModule {}
 
@@ -31,12 +31,7 @@ const CONFIRMATION_BUTTONS = {
 describe('ErrorHandler', () => {
   const createService = createServiceFactory({
     service: ErrorHandler,
-    imports: [
-      RouterModule.forRoot([], { relativeLinkResolution: 'legacy' }),
-      NgxsModule.forRoot([]),
-      CoreModule,
-      MockModule,
-    ],
+    imports: [NgxsModule.forRoot([]), CoreTestingModule.forTest(), MockModule],
     mocks: [OAuthService],
     providers: [
       { provide: APP_BASE_HREF, useValue: '/' },
diff --git a/npm/ng-packs/packages/theme-shared/src/lib/tests/toaster.service.spec.ts b/npm/ng-packs/packages/theme-shared/src/lib/tests/toaster.service.spec.ts
index d47e4a7cf5d..fa6e0e578c3 100644
--- a/npm/ng-packs/packages/theme-shared/src/lib/tests/toaster.service.spec.ts
+++ b/npm/ng-packs/packages/theme-shared/src/lib/tests/toaster.service.spec.ts
@@ -1,4 +1,4 @@
-import { CoreModule } from '@abp/ng.core';
+import { CoreTestingModule } from '@abp/ng.core/testing';
 import { NgModule } from '@angular/core';
 import { createServiceFactory, SpectatorService } from '@ngneat/spectator/jest';
 import { NgxsModule } from '@ngxs/store';
@@ -11,7 +11,7 @@ import { ToasterService } from '../services/toaster.service';
   exports: [ToastContainerComponent],
   entryComponents: [ToastContainerComponent],
   declarations: [ToastContainerComponent, ToastComponent],
-  imports: [CoreModule.forTest()],
+  imports: [CoreTestingModule.forTest()],
 })
 export class MockModule {}
 const toastClassPrefix = 'abp-toast';
@@ -21,7 +21,7 @@ describe('ToasterService', () => {
   let service: ToasterService;
   const createService = createServiceFactory({
     service: ToasterService,
-    imports: [NgxsModule.forRoot(), CoreModule.forTest(), MockModule],
+    imports: [NgxsModule.forRoot(), CoreTestingModule.forTest(), MockModule],
   });
 
   beforeEach(() => {
diff --git a/npm/ng-packs/tsconfig.json b/npm/ng-packs/tsconfig.json
index 213f5bd4377..c67c628f64d 100644
--- a/npm/ng-packs/tsconfig.json
+++ b/npm/ng-packs/tsconfig.json
@@ -17,6 +17,7 @@
     "paths": {
       "@abp/ng.core": ["packages/core/src/public-api.ts"],
       "@abp/ng.core/locale": ["packages/core/locale/src/public-api.ts"],
+      "@abp/ng.core/testing": ["packages/core/testing/src/public-api.ts"],
       "@abp/ng.theme.shared": ["packages/theme-shared/src/public-api.ts"],
       "@abp/ng.theme.shared/extensions": ["packages/theme-shared/extensions/src/public-api.ts"],
       "@abp/ng.components/tree": ["packages/components/tree/src/public-api.ts"],