Hi everyone. What could be a way to test a service that uses `WebClient` to perform requests ? Mocki...

# spring

[tseisel]

Hi everyone. What could be a way to test a service that uses WebClient to perform requests ? Mocking WebClient does not seem to be a viable solution.
I've seen something like WebClientTest on the web, but I'm unable to find the correct dependency or documentation about it.

[tseisel]

My bad, its WebTestClient ...

[Czar]

you could do wiremock

[kqr]

for me webclient is just tool, you should wrap in it some kind of DAO and mock that, or as @Czar mention, mock the service you are calling

[tseisel]

That's the layer I'd like to unit test : to check that the service implementation parses JSON correctly and handles HTTP errors.

[Jukka Siivonen]

Not sure if I understand correctly, but if you want your test to use actual implementation of WebClient, then use WireMock/MockWebServer to mock "server side". If it's WebClient you want to mock then use Mockito for example to mock that instance?

[tseisel]

I'm looking for something similar to Ktor's MockEngine to simulate a remote server without issuing actual requests. Something I could inject into or in place of WebClient to configure fake server responses.

[Jukka Siivonen]

Then WireMock is what you are looking for, so WebClient makes requests to WireMock instead of real endpoint

[thol01]

MockWebServer is easy to set up and use from your test: https://github.com/square/okhttp/tree/master/mockwebserver

[Ben]

I have used MockWebServer before too and it works great.