Angular testing router params breaks test bed

Question

When I provide params to my TestComponent the test bed blows up if the html contains a [routerLink]

testbed setup

Answer 1

This works with no errors and no hack

import {
    TestBed,
    async
} from '@angular/core/testing';
import {
    HttpModule,
    BaseRequestOptions,
    Http
} from '@angular/http';
import { APP_BASE_HREF } from '@angular/common';
import {
    RouterModule,
    ActivatedRoute
} from '@angular/router';
import { MockBackend } from '@angular/http/testing';
import { Observable } from 'rxjs';
import { Component } from '@angular/core';
fdescribe( 'AppComponent', () => {
    beforeEach( () => {
        TestBed.configureTestingModule( {
            imports      : [
                HttpModule,
                RouterModule.forRoot(
                    [
                        {
                            path      : '',
                            component : TestComponent
                        }
                    ] )
            ],
            declarations : [ TestComponent ],
            providers    : [
                BaseRequestOptions,
                MockBackend,
                {
                    provide    : Http,
                    useFactory : function ( backend : MockBackend, defaultOptions : BaseRequestOptions ) {
                        return new Http( backend, defaultOptions );
                    },
                    deps       : [ MockBackend, BaseRequestOptions ]
                },
                {
                    provide  : APP_BASE_HREF,
                    useValue : '/'
                },
                {
                    provide  : ActivatedRoute,
                    useValue : {
                        params : Observable.of( { versionId : '1' } ),
                        parent : {
                            params : Observable.of( { uniqueId : '1234' } )
                        }
                    }
                }
            ]
        } );
        TestBed.compileComponents();
    } );
    it( 'should create the app', async( () => {
        let fixture = TestBed.createComponent( TestComponent );
        let app     = fixture.debugElement.componentInstance;
        expect( app ).toBeTruthy();
    } ) );
} );

@Component( {
    selector    : 'app-root',
    template : `
        Back
        

`,
} )
export class TestComponent {

}