When I run a test, I have

TypeError: AsyncTestZoneSpec is not a constructor
at runInAsyncTestZone (/sandbox/webapp2/jspm_packages/npm/[email protected]/src/testing/testing.js: 100:24)
at Object.eval (/sandbox/webapp2/jspm_packages/npm/[email protected]/src/testing/testing.js:113:17)

because of https://github.com/angular/angular/blob/master/modules/angular2/src/testing/testing.ts#L128-L129