I'm trying to test the PubSub emissions locally on my NodeJS app. I'm following these tutorials: https://cloud.google.com/pubsub/docs/emulator - setting the Emulator https://cloud.google.com/functions/docs/testing/test-event - app specific
As instructed in the first link, I started the emulator by invoking:
gcloud beta emulators pubsub start --project=test, and set the env variables by $(gcloud beta emulators pubsub env-init).
But in contrast to what appears in the tutorial, when I check which env variables needs to be set by gcloud beta emulators pubsub env-init, there is no project-id. And as I run the test I receive the following error: Unable to detect a Project Id in the current environment...
So I tried to set a project manually by invoking gcloud config set project test.
the tutorial specifies about the project parameter ('test' in my case):
The string does not need to represent a real Google Cloud project because the Pub/Sub emulator runs locally.
However, as I run the test, it now gives the following error: 5 NOT_FOUND: Requested project not found or user does not have access to it (project=test)...
*In both cases, the error comes from the publish function
What can I do in this case? Must I use an existing project in oppose to what's claimed in the tutorial, or else what am I missing?
The test:
describe('SubscribeController', () => {
const pubSub = new PubSub();
let subscribeController: SubscribeController;
beforeEach(async () => {
const moduleRef = await Test.createTestingModule({
providers: [
{
provide: LoggerService,
useValue: {},
},
],
controllers: [SubscribeController],
}).compile();
subscribeController = moduleRef.get<SubscribeController>(SubscribeController);
});
describe('1 emissions tests', () => {
it('1.1 when receives an event emission, should log via the LoggerService', async () => {
const logEventMock = jest.spyOn(subscribeController, 'logEvent').mockImplementation(async function(event:string) {});
const topic = pubSub.topic('EVENT');
await topic.publish(Buffer.from('hello'));
await logEventMock.mock.results[0].value;
expect(logEventMock).toHaveBeenCalledWith('hello');
});
});
});
The tested subject:
@Controller()
export class SubscribeController {
constructor(private readonly _loggerService: LoggerService) {
}
@EventPattern('EVENT')
async logEvent(event: string): Promise<void> {
await this._loggerService.logEvent(event);
}
@EventPattern('ERROR')
async logError(error: string): Promise<void> {
await this._loggerService.logError(error);
}
}
PubSub dependency in package.json:
"dependencies": {
"@google-cloud/pubsub": "^2.17.0",
...
}
