When running the Gradle build, incremental build is not working for the :signing:test task. It is always executed even if no code has changed. When running with -i I get the following reason why the tests are executed:
Input file /Users/hans/gradle/subprojects/signing/build/resources/test/2.txt.asc for task ':signing:test' has changed. Input file /Users/hans/gradle/subprojects/signing/build/resources/test/1.txt.asc for task ':signing:test' has changed.