Angular2 meteor meteortesting:mocha Uncaught ReferenceError: Zone is not defined

I am just setting up tests for my angular2 meteor app but I am really struggling to get off the ground. I am currently using meteortesting:mocha but when I run TEST_WATCH=1 meteor test --driver-package meteortesting:mocha and navigate to http://localhost:3000/ The browser console gives me the error:

Uncaught ReferenceError: Zone is not defined

This is the only test file I have, which is causing the issue:

import { async, ComponentFixture, TestBed } from '@angular/core/testing';
import { By } from '@angular/platform-browser';
import { DebugElement } from '@angular/core';
import { MenuAdminPage } from './menuadmin';
import { Factory } from 'meteor/dburles:factory';
import { assert } from 'chai';

describe('MenuAdminPage (templateUrl)', () => {
  let comp:    MenuAdminPage;
  let fixture: ComponentFixture<MenuAdminPage>;
  let de:      DebugElement;
  let el:      HTMLElement;

  // async beforeEach
  beforeEach(async(() => {
    TestBed.configureTestingModule({
      declarations: [ MenuAdminPage ], // declare the test component
    })
    .compileComponents();  // compile template and css
  }));

  // synchronous beforeEach
  beforeEach(() => {
    fixture = TestBed.createComponent(MenuAdminPage);

    comp = fixture.componentInstance; // MenuAdminPage test instance

    // query for the title <h1> by CSS element selector
    de = fixture.debugElement.query(By.css('h1'));
    el = de.nativeElement;
  });

  it('no title in the DOM until manually call `detectChanges`', () => {
    expect(el.textContent).toEqual('');
  });

  it('should display original title', () => {
    fixture.detectChanges();
    expect(el.textContent).toContain(comp.title);
  });

  it('should display a different test title', () => {
    comp.title = 'Test Title';
    fixture.detectChanges();
    expect(el.textContent).toContain('Test Title');
  });

});

I am using meteor 1.6