Hello, I think that generally this is a good idea. However, such general lintian check might be difficult to implement, but at least packages built using maven-debian-helper could be checked.
I propose the following algorithm: 1. Check that package build depends on maven-debian-helper; 2. Check that there are tests (*.java files under src/test/java/ or <module>/src/test/java/); 3. Check that debian/maven.properties contains uncommented line 'maven.test.skip=true'. If all three checks are positive, upstream test suite exists, and is not run during the build. What do you think? Andrius