Cannot read property 'params' of undefined in angular 2 unit testing

[poornima j]

I done Angular 2 application For that i am doing unit testing, but params cant read in that unit tesing

// This is my code

import { Component, OnInit } from '@angular/core';

import { ActivatedRoute, Params,Router } from '@angular/router';

@Component({

  moduleId: module.id,

  selector: 'moivetwo-app',

  template:`<div class="container">

   

    <div class="row" style="text-align:center;">

        <div class="col-sm-12">

            <h3><span class="label label-info">{{lblName}}</span></h3>

        </div>

    </div>

        <div class="row" >  

         <div class="col-sm-12">  

                <input class="form-control input-lg" id="inputlg" type="text" [(ngModel)]='txtValue' [style.border-color]='errColor'>

         </div>            

        </div>

    <br/>

    <div class="row" style="text-align:center;">

        <span class="input-group-btn">

            <button class="btn btn-success btn-lg" type="button" id="bot1" (click)='onClick()'>{{ btnTitle }} </button>

        </span>

        </div>

    <br/>

    <div class="row" style="text-align:center;">

        <span class="input-group-btn" *ngIf='navigated'>

            <button class="btn btn-success btn-lg" type="button" (click)='goBack()'>Back </button>

        </span>

    </div>

    </div>`

  

})

export class EntryPage

{

    movieName:string;    

    btnTitle:string = "Continue";

    txtValue:string;

    navigated = false;

    errColor:string;    

    lblName:string;

    constructor(   

    private activatedRoute: ActivatedRoute,

    private router: Router) {}

    goBack(): void {    

        this.router.navigate(['one']);

    }

    ngOnInit(): void {

        this.movieName = this.activatedRoute.snapshot.params['movie1name'];

            if (this.movieName !== undefined) {

                this.lblName = "Second Movie";

            //this.movieName = params['movie1name'];

            this.navigated = true;

            console.log(this.movieName);           

            } else {

                this.lblName = "First Movie";

            this.navigated = false;            

        }

        

    }

    onClick(){

        if(this.txtValue!=undefined && this.txtValue!="")

        {

            this.errColor="";

            if(this.movieName != undefined) 

            {                                                        

                    let link11 = ['/compare', this.movieName,this.txtValue];

                    this.router.navigate(link11);                    

            }

            else

            {                 

                    let link = ['/two', this.txtValue];

                    this.router.navigate(link);  

            }        

              

        } else  this.errColor="red";

    }

}