带有服务依赖的Angular测试类

我正在try 测试ANGLE中的普通class(不是组件)，它有一个服务依赖项和一个单独的构造函数参数.我使用依赖项为组件测试镜像了the docs，但我得到了以下错误:

Unexpected value 'MyClass' imported by the module 'DynamicTestModule'. Please add a @NgModule annotation.个

my-service.service.ts:

@Injectable({
    providedIn: 'root',
})
export class MyService { ... }

my-class.ts:

import { inject } from '@angular/core';
import { MyService } from './my-service.service';

export class MyClass {
    private _myService: MyService = inject(MyService);
    private _name: string;

    constructor(name: string) {
        this._name = name;
    }
}

my-class.spec.ts个

import { ComponentFixture, TestBed } from '@angular/core/testing';
import { MyService } from './my-service.service';
import { MyClass } from './my-class';

describe('MyClass', () => {
    let myClass: MyClass;
    let mockMyService: Partial<MyService>;
    let fixture: ComponentFixture<MyClass>;

    beforeEach(() => {
        mockMyService = {};

        TestBed.configureTestingModule({
            imports: [MyClass],
            providers: [{ provide: MyService, useValue: mockMyService }],
        });

        fixture = TestBed.createComponent(MyClass); // causes error
        myClass = fixture.componentInstance;

        TestBed.inject(MyService);
    });

    it('should create', () => {
        expect(myClass).toBeTruthy();
    });
});

更新my-class.spec.ts个

import { MyClass } from './my-class';

describe('MyClass', () => {
    let myClass: MyClass;

    beforeEach(() => {
        myClass = new MyClass('someName');
    });

    it('should create', () => {
        expect(myClass).toBeTruthy();
    });
});

如何使用服务依赖测试这个普通类？