Hi All

I'm new to Angular2 and am struggling with the basics.  I have a simple 
component and I thought it would be sensible to write a unit test.  I 
followed the Twain example 
<https://angular.io/docs/ts/latest/testing/#!#component-with-async-service> 
which is very similar to what I am trying to achieve.
The issue is that whenever I include my test spec I see the error:

Chromium 52.0.2743 (Ubuntu 0.0.0) ClientLogoCarouselComponent encountered a 
declaration exception FAILED
Error: Cannot call Promise.then from within a sync test.
   at SyncTestZoneSpec.onScheduleTask 
(webpack:///home/matthew/Projects/cf/~/zone.js/dist/sync-test.js:11:0 <- 
src/test.ts:24070:27)
   at ZoneDelegate.scheduleTask 
(webpack:///home/matthew/Projects/cf/~/zone.js/dist/zone.js:202:0 <- 
src/test.ts:46485:49)
   at Zone.scheduleMicroTask 
(webpack:///home/matthew/Projects/cf/~/zone.js/dist/zone.js:139:0 <- 
src/test.ts:46422:39)
   at scheduleResolveOrReject 
(webpack:///home/matthew/Projects/cf/~/zone.js/dist/zone.js:449:0 <- 
src/test.ts:46732:14)
   at ZoneAwarePromise.then 
(webpack:///home/matthew/Projects/cf/~/zone.js/dist/zone.js:525:0 <- 
src/test.ts:46808:17)
   at new ApplicationInitStatus 
(webpack:///home/matthew/Projects/cf/~/@angular/core/src/application_init.js:33:0
 
<- src/test.ts:9491:60)
   at NgModuleInjector.DynamicTestModuleInjector.createInternal 
(DynamicTestModule.ngfactory.js:133:36)
   at NgModuleInjector.create 
(webpack:///home/matthew/Projects/cf/~/@angular/core/src/linker/ng_module_factory.js:88:53
 
<- src/test.ts:17465:76)
   at NgModuleFactory.create 
(webpack:///home/matthew/Projects/cf/~/@angular/core/src/linker/ng_module_factory.js:73:0
 
<- src/test.ts:17450:18)
   at TestBed._initIfNeeded 
(webpack:///home/matthew/Projects/cf/~/@angular/core/bundles/core-testing.umd.js:1072:0
 
<- src/test.ts:5230:68)

I have setup my new project with Angular cli (1.0.0-beta.14; node: 6.4.0). 
 I run the test suite with 'ng test'

If I comment out 'client-logo-carousel.component.spec.ts' then the Twain 
test example runs fine in my project.

The stacktrace refers to test.ts which must somehow be the source of the 
problem.  I've included that in the plunkr.  I am stuck here so I hope 
someone can offer some guidance.

The code for the component is here:  
http://embed.plnkr.co/vva6F8mzm10LMM2aGrHb/

Thanks
Matt

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