QuarkusComponentTest: collect injection points from superclasses

test-framework/junit5-component/src/main/java/io/quarkus/test/component/QuarkusComponentTest.java

@@ -8,10 +8,14 @@
 
 import org.junit.jupiter.api.extension.ExtendWith;
 
+import io.quarkus.test.InjectMock;
 import io.smallrye.common.annotation.Experimental;
 
 /**
  * Registers the {@link QuarkusComponentTestExtension} that makes it easy to test Quarkus components.
+ *
+ * @see InjectMock
+ * @see TestConfigProperty
  */
 @Experimental("This feature is experimental and the API may change in the future")
 @ExtendWith(QuarkusComponentTestExtension.class)

test-framework/junit5-component/src/main/java/io/quarkus/test/component/QuarkusComponentTestExtension.java

@@ -124,6 +124,9 @@
  * configuration properties via the {@link #configProperty(String, String)} method. If you only need to use the default values
  * for missing config properties, then the {@link #useDefaultConfigProperties()}
  * might come in useful.
+ *
+ * @see InjectMock
+ * @see TestConfigProperty
  */
 @Experimental("This feature is experimental and the API may change in the future")
 public class QuarkusComponentTestExtension
@@ -195,7 +198,7 @@ public QuarkusComponentTestExtension configProperty(String key, String value) {
     }
 
     /**
-     * Use the default values for missing config properties. By default, if missing config property results in a test failure.
+     * Use the default values for missing config properties. By default, a missing config property results in a test failure.
      * <p>
      * For primitives the default values as defined in the JLS are used. For any other type {@code null} is injected.
      *
@@ -246,10 +249,14 @@ public void beforeAll(ExtensionContext context) throws Exception {
             }
         }
         // All fields annotated with @Inject represent component classes
-        for (Field field : testClass.getDeclaredFields()) {
-            if (field.isAnnotationPresent(Inject.class) && !resolvesToBuiltinBean(field.getType())) {
-                componentClasses.add(field.getType());
+        Class<?> current = testClass;
+        while (current != null) {
+            for (Field field : current.getDeclaredFields()) {
+                if (field.isAnnotationPresent(Inject.class) && !resolvesToBuiltinBean(field.getType())) {
+                    componentClasses.add(field.getType());
+                }
             }
+            current = current.getSuperclass();
         }
 
         TestConfigProperty[] testConfigProperties = testClass.getAnnotationsByType(TestConfigProperty.class);
@@ -761,13 +768,17 @@ private List<FieldInjector> injectFields(Class<?> testClass, Object testInstance
             injectAnnotations = List.of(Inject.class, InjectMock.class);
         }
         List<FieldInjector> injectedFields = new ArrayList<>();
-        for (Field field : testClass.getDeclaredFields()) {
-            for (Class<? extends Annotation> annotation : injectAnnotations) {
-                if (field.isAnnotationPresent(annotation)) {
-                    injectedFields.add(new FieldInjector(field, testInstance));
-                    break;
+        Class<?> current = testClass;
+        while (current.getSuperclass() != null) {
+            for (Field field : current.getDeclaredFields()) {
+                for (Class<? extends Annotation> annotation : injectAnnotations) {
+                    if (field.isAnnotationPresent(annotation)) {
+                        injectedFields.add(new FieldInjector(field, testInstance));
+                        break;
+                    }
                 }
             }
+            current = current.getSuperclass();
         }
         return injectedFields;
     }

test-framework/junit5-component/src/main/java/io/quarkus/test/component/TestConfigProperty.java

@@ -10,7 +10,7 @@
 import io.quarkus.test.component.TestConfigProperty.TestConfigProperties;
 
 /**
- * Set a configuration property for the test.
+ * Set the value of a configuration property for a {@code io.quarkus.test.component.QuarkusComponentTest}.
  *
  * @see QuarkusComponentTest
  * @see QuarkusComponentTestExtension#configProperty(String, String)

test-framework/junit5-component/src/test/java/io/quarkus/test/component/declarative/SuperClassInjectionTest.java

@@ -0,0 +1,21 @@
+package io.quarkus.test.component.declarative;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import org.junit.jupiter.api.Test;
+import org.mockito.Mockito;
+
+import io.quarkus.test.component.QuarkusComponentTest;
+import io.quarkus.test.component.TestConfigProperty;
+
+@QuarkusComponentTest
+@TestConfigProperty(key = "foo", value = "BAR")
+public class SuperClassInjectionTest extends SuperTest {
+
+    @Test
+    public void testPing() {
+        Mockito.when(charlie.ping()).thenReturn("foo");
+        assertEquals("foo and BAR", myComponent.ping());
+    }
+
+}

test-framework/junit5-component/src/test/java/io/quarkus/test/component/declarative/SuperTest.java

@@ -0,0 +1,17 @@
+package io.quarkus.test.component.declarative;
+
+import jakarta.inject.Inject;
+
+import io.quarkus.test.InjectMock;
+import io.quarkus.test.component.beans.Charlie;
+import io.quarkus.test.component.beans.MyComponent;
+
+public abstract class SuperTest {
+
+    @Inject
+    MyComponent myComponent;
+
+    @InjectMock
+    Charlie charlie;
+
+}