I am finding that no matter how I throw an error in a test it is never thrown. I have tried the below. The suspense and data ready states work without issues.

```javascript
// as per docs
environment.mock.queueOperationResolver(() => new Error("Uh-Oh"))

// using spy
jest.spyOn(reactRelay, "usePreloadedQuery").mockImplementation(() => { throw new Error("Uh-Oh") })
jest.spyOn(reactRelay, "usePreloadedQuery").mockReturnValue(new Error("Uh-Oh"))

// throwing in resolver
const customMockResolvers = { Entry: () => new Error("Uh-Oh") }
environment.queueOperationResolver(operation => MockPayloadGenerator.generate(operation, customMockResolvers))

// using the rejectMostRecentOperation always fails (I believe this is due to the component using useQueryLoader)
environment.mock.rejectMostRecentOperation(new Error("Uh-oh"))
// Invariant Violation: MockEnvironment: Cannot respond to request, it has not been requested yet.
```

I have also found that I have to pass add `mock.queuePendingOperation(EntryListQuery, {})` otherwise it remains in a suspending state. The docs it implies that this isn't required.

The component is really basic, so I can't see what is going wrong.

```javascript
const Entries = () => {
const [queryReference, loadQuery] = useQueryLoader(EntryListQuery)

useEffect(() => {
if (!queryReference) loadQuery()
}, [loadQuery, queryReference])

if (!queryReference) return

return (

}>



)
}
```

```javascript
// the child component

const EntryList = ({ queryReference }) => {
const { queryEntry } = usePreloadedQuery(EntryListQuery, queryReference)

return (

{queryEntry.map(entry => {
if (entry) {
return (

• 
  {data.title}
  

)
}
return null
})}

)
}
export { EntryList, EntryListQuery }

```