Angular 4 - Failed: Can't resolve all parameters for ActivatedRoute: (?, ?, ?, ?, ?, ?, ?, ?)

Question

I have referred the following link to get the answers, but I couldn't find any working solution for my scenario. Error: (SystemJS) Can't resolve all parameters for ActivatedRoute: (?, ?, ?, ?, ?, ?, ?, ?)

Therefore, I have been trying to remove the Activated Route from the providers and still the test bed is not passing. It shows

Error: No provider for ActivatedRoute!

So here is my code, I want to run my test bed in the angular application which is using Jasmine.

import { ActivatedRoute } from '@angular/router';
import { async, ComponentFixture, TestBed } from '@angular/core/testing';
import { RouterModule, Routes } from '@angular/router';
import { RouterTestingModule } from '@angular/router/testing';

describe('SomeComponent', () => {
  let component: SomeComponent;
  let fixture: ComponentFixture<SomeComponent>;

  beforeEach(async(() => {
    TestBed.configureTestingModule({ 
      imports: [ RouterModule, RouterTestingModule ],
      declarations: [ SomeComponent ],
      providers: [ ActivatedRoute ],
    })
    .compileComponents();
  }));

  beforeEach(() => {
    fixture = TestBed.createComponent(SomeComponent);
    component = fixture.componentInstance;
    fixture.detectChanges();
  });

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

Error getting

Solution 1

You want to inject a fake ActivatedRoute to your component, since you create it yourself in the test, and the router thus doesn't create it for you and inject an ActivatedRoute. So you can use something like this:

describe('SomeComponent', () => {

  const fakeActivatedRoute = {
    snapshot: { data: { ... } }
  } as ActivatedRoute;

  beforeEach(async(() => {
    TestBed.configureTestingModule({ 
      imports: [ RouterTestingModule ],
      declarations: [ SomeComponent ],
      providers: [ {provide: ActivatedRoute, useValue: fakeActivatedRoute} ],
    })
    .compileComponents();
  }));
});

Solution 2

Here's a solution for angular 7

{
    provide: ActivatedRoute,
    useValue: {
        snapshot: {
            paramMap: {
                get(): string {
                    return '123';
                },
            },
        },
    },
},

Solution 3

{
  provide: ActivatedRoute,
  useValue: {
    snapshot: {
      queryParamMap: {
        get(): number {
          return 6;
        }
      }
    }
  }
}

Comments

[Zerok]

Thing is, how do you populate the snapshot object so it works?

[Lauri Elias]

Why do I HAVE to fake it? Is there any example on the internet where I actually simulate reading URLs?