Thanks for the reply Stefan.
The TestKit-based test is - https://github.com/sebersole/quarkus-gradle-plugin-poc/blob/9d39262eda60ba30e9bc68ed3548a19a33ec1569/quarkus-gradle-poc-plugin/src/test/java/com/github/sebersole/gradle/quarkus/SimpleTest.java#L138
You’d have to remove the @Disabled
The consumer project where the up-to-date checks work as expected is - https://github.com/sebersole/quarkus-plugin-poc-consumer