Fixing inherited test support

instrumentation/core/src/androidTest/java/de/mannodermaus/junit5/inheritance/TestExecutor.kt

@@ -0,0 +1,14 @@
+package de.mannodermaus.junit5.inheritance
+
+import org.junit.jupiter.api.Assertions.assertNotNull
+import org.junit.jupiter.api.Test
+
+abstract class TestExecutor {
+
+    @Test
+    fun executeTest() {
+        assertNotNull(getFilename())
+    }
+
+    abstract fun getFilename(): String?
+}

instrumentation/core/src/androidTest/java/de/mannodermaus/junit5/inheritance/TestImplementation.java

@@ -0,0 +1,9 @@
+package de.mannodermaus.junit5.inheritance;
+
+public class TestImplementation extends TestExecutor {
+
+    @Override
+    public String getFilename() {
+        return "test";
+    }
+}

instrumentation/runner/src/main/kotlin/de/mannodermaus/junit5/AndroidJUnit5Builder.kt

@@ -65,6 +65,19 @@ public class AndroidJUnit5Builder : RunnerBuilder() {
             }
 
             if (testClass.jupiterTestMethods().isEmpty()) {
+
+                var C: Class<*>? = testClass
+                while (C != null) {
+
+                    C = C.superclass
+
+                    if(C != null) {
+                        if(!C.jupiterTestMethods().isEmpty()) {
+                            return createJUnit5Runner(testClass)
+                        }
+                    }
+                }
+
                 return null
             }