Import only the thing you want to test. Do not import dependencies!

some-component.spec.ts

import { SomeComponent } from './some.component.js';  // only import the thing you want to test

describe('SomeComponent:', () => {
  
  let component: SomeComponent;
  let mockDepOne: any;    // do not import DepOne, 'any' it
  let mockDepTwo: any;    // do not import DepTwo, 'any' it
  let mockDepThree: any;  // do not import DepThree, 'any' it

  beforeEach(() => {
    
    // mock dependencies
    mockDepOne = {
      doSomething: jasmine.createSpy('doSomething').and.returnValue('0123456789')
    };
    mockDepTwo = jasmine.createSpyObj('DepTwo', ['doSomethingElse']);
    mockDepThree = jasmine.createSpyObj('DepThree', ['capitalize']);
    
    // initialize component under test with mocked dependencies
    component = new SomeComponent(mockDepOne, mockDepTwo, mockDepThree);
    
  });
  
  // ...                 ...
  // ... unit tests here ...
  // ...                 ...
  
});