chore: make sure tests run again

Author: oliemansm

build.gradle

@@ -82,6 +82,18 @@ subprojects {
 
     compileJava.mustRunAfter verifyGoogleJavaFormat
 
+    test {
+        useJUnitPlatform()
+
+        afterSuite { desc, result ->
+            if (!desc.parent) {
+                if (result.testCount == 0) {
+                    throw new IllegalStateException("No tests were found. Failing the build")
+                }
+            }
+        }
+    }
+
     jacocoTestReport {
         reports {
             xml.enabled = true