Provide proper error message when using @ConfigProperty in @QuarkusIntegrationTest

[geoand]

These tests do not support injection (as they are not beans), but this fact
is not obvious.
This error message (which is analogous to what we already have with @Inject)
should make this fact salient.

[geoand]

Did this because @alesj ran into this issue

[rsvoboda]

@geoand this change block one of our use-cases where we are using @ConfigProperty to fetch information about started service, Jaeger in our case. We are not receiving config property of Quarkus application, but property set in our TestResource.

Here we want to access it - https://github.com/quarkus-qe/beefy-scenarios/blob/main/010-quarkus-opentracing-reactive-grpc/src/test/java/io/quarkus/qe/AbstractPingPongResourceTest.java#L27

Property is set here: https://github.com/quarkus-qe/beefy-scenarios/blob/main/010-quarkus-opentracing-reactive-grpc/src/test/java/io/quarkus/qe/containers/JaegerTestResource.java#L48

Reproducer:

• https://github.com/quarkus-qe/beefy-scenarios
• FAIL mvn clean verify -Dnative -f 010-quarkus-opentracing-reactive-grpc (uses 999-SNAPSHOT)
• PASS mvn clean verify -Dnative -f 010-quarkus-opentracing-reactive-grpc -Dquarkus.platform.version=2.7.5.Final

[geoand]

An integration test should not be using that since the injection does not work

[rsvoboda]

It works, see case with 2.7.5.Final. We are setting the property when JaegerTestResource.java#L48 starts and getting that in the test.

We are not using any property from the application

[geoand]

I am not really keen on reverting this just because of that weird case to be honest, but if other folks think otherwise, I'll do it.

[rsvoboda]

I'm not asking to revert this PR. Just wanted to point out the case for breaking change.

Do you have any idea how we could propagate the URL of started jaeger service to the test case?

[geoand]

I'm not asking to revert this PR. Just wanted to point out the case for breaking change.

Yes, I am aware, hence the label.

Do you have any idea how we could propagate the URL of started jaeger service to the test case?

You are basically already doing this, so you could just any marker annotation to do the same thing

[rsvoboda]

🤦 thanks for the push with marker annotation

[geoand]

:)