@ExplicitParameterInjection is now by default inherited for nested cl…

…asses

junit5/src/main/java/org/jboss/weld/junit5/ExplicitParamInjection.java

@@ -22,16 +22,26 @@
 import jakarta.enterprise.inject.Default;
 
 /**
- * An annotation used to enforce explicit parameter annotation. When applied, Weld will only attempt to resolve method
- * parameters which have qualifiers. In case no qualifier is required for your bean, add the {@link Default} qualifier, see CDI
- * specification for in depth explanation on qualifiers.
+ * An annotation used to enforce explicit parameter annotation. When applied and set to {@code true}, Weld will only attempt to
+ * resolve method parameters which have qualifiers. In case no qualifier is required for your bean, add the {@link Default}
+ * qualifier, see CDI specification for in depth explanation on qualifiers.
  *
- * This annotation can be applied either on test class, in which case it affects parameter injection in all methods, or on
- * a method.
+ * This annotation can be applied either on a test class, in which case it affects parameter injection in all methods, or on
+ * a test method.
+ *
+ * Nested classes inherit the behavior declared by their enclosing class but can re-declare this annotation along with the
+ * {@link #value()} parameter to override the behavior.
  *
  * @author <a href="mailto:[email protected]">Matej Novotny</a>
  */
 @Retention(RetentionPolicy.RUNTIME)
 public @interface ExplicitParamInjection {
 
+    /**
+     * If set to {@code true}, Weld will only attempt to resolve parameters which have CDI qualifier annotations.
+     *
+     * @return {@code true} by default; can be explicitly set to {@code false} to make Weld attempt to resolve all parameters
+     */
+    boolean value() default true;
+
 }

junit5/src/main/java/org/jboss/weld/junit5/WeldJunit5Extension.java

@@ -103,13 +103,22 @@ private static void storeExplicitParamResolutionInformation(ExtensionContext ec)
             return;
         }
         // check class-level annotation
-        for (Annotation annotation : ec.getRequiredTestClass().getAnnotations()) {
-            if (annotation.annotationType().equals(ExplicitParamInjection.class)) {
-                setExplicitInjectionInfoToStore(ec, true);
-                break;
+        Class<?> inspectedTestClass = ec.getRequiredTestClass();
+        ExplicitParamInjection explicitParamInjection = inspectedTestClass.getAnnotation(ExplicitParamInjection.class);
+        if (explicitParamInjection != null) {
+            setExplicitInjectionInfoToStore(ec, explicitParamInjection.value());
+        } else {
+            // if not found, it can still be a nested class
+            // inspect enclosing classes until first annotation is found or until we hit top-level class
+            inspectedTestClass = inspectedTestClass.getEnclosingClass();
+            while (inspectedTestClass != null && explicitParamInjection == null) {
+                explicitParamInjection = inspectedTestClass.getAnnotation(ExplicitParamInjection.class);
+                if (explicitParamInjection != null) {
+                    setExplicitInjectionInfoToStore(ec, explicitParamInjection.value());
+                }
+                inspectedTestClass = inspectedTestClass.getEnclosingClass();
             }
         }
-
     }
 
     @Override

junit5/src/test/java/org/jboss/weld/junit5/auto/ParametersAutoConfigTest.java

@@ -2,7 +2,6 @@
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertNotNull;
-import static org.junit.jupiter.api.Assertions.assertNull;
 
 import org.jboss.weld.junit5.basic.Foo;
 import org.jboss.weld.junit5.explicitInjection.Bar;
@@ -16,7 +15,7 @@ public class ParametersAutoConfigTest {
     @DisplayName("Ensure the parameters Foo and Bar are automatically included in container with no configuration")
     void test(Foo foo, Bar bar) {
         assertNotNull(bar);
-        assertNull(bar.ping());
+        assertEquals(Bar.class.getSimpleName(), bar.ping());
         assertNotNull(foo);
         assertEquals(foo.getBar(), "baz");
     }

junit5/src/test/java/org/jboss/weld/junit5/explicitInjection/Bar.java

@@ -28,6 +28,7 @@ public class Bar {
     private String someText = null;
 
     public Bar() {
+        this.someText = Bar.class.getSimpleName();
     }
 
     public Bar(String someText) {

junit5/src/test/java/org/jboss/weld/junit5/explicitInjection/CustomExtension.java

@@ -31,8 +31,11 @@ public class CustomExtension implements ParameterResolver {
     @Override
     public Object resolveParameter(ParameterContext parameterContext, ExtensionContext extensionContext)
             throws ParameterResolutionException {
-        // dumb approach but we only ever resolve Bar anyway :)
-        return new Bar(CustomExtension.class.getSimpleName());
+        if (parameterContext.getParameter().getType().equals(Bar.class)) {
+            return new Bar(CustomExtension.class.getSimpleName());
+        } else {
+            throw new IllegalStateException(getClass().getName() + " can only resolve parameter Bar!");
+        }
     }
 
     @Override

junit5/src/test/java/org/jboss/weld/junit5/explicitInjection/ExplicitParameterInjectionNestedClass2Test.java

@@ -0,0 +1,98 @@
+package org.jboss.weld.junit5.explicitInjection;
+
+import jakarta.enterprise.inject.Default;
+
+import org.jboss.weld.junit5.ExplicitParamInjection;
+import org.jboss.weld.junit5.WeldJunit5Extension;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+
+@ExtendWith(WeldJunit5Extension.class)
+@ExplicitParamInjection(false)
+public class ExplicitParameterInjectionNestedClass2Test {
+
+    @Test
+    public void testParameterResolution(@Default Foo foo, Bar bar, @MyQualifier BeanWithQualifier bean) {
+        // Bar should be resolved by another extension
+        Assertions.assertNotNull(bar);
+        Assertions.assertEquals(Bar.class.getSimpleName(), bar.ping());
+        // Foo should be resolved as usual
+        Assertions.assertNotNull(foo);
+        Assertions.assertEquals(Foo.class.getSimpleName(), foo.ping());
+        // BeanWithQualifier should be resolved
+        Assertions.assertNotNull(bean);
+        Assertions.assertEquals(BeanWithQualifier.class.getSimpleName(), bean.ping());
+    }
+
+    @Nested
+    class NestedTestClass {
+
+        @Test
+        public void testParameterResolution(@Default Foo foo, Bar bar, @MyQualifier BeanWithQualifier bean) {
+            // Weld will now claim all parameters as beans, even Bar
+            Assertions.assertNotNull(bar);
+            Assertions.assertEquals(Bar.class.getSimpleName(), bar.ping());
+            // Foo should be resolved as usual
+            Assertions.assertNotNull(foo);
+            Assertions.assertEquals(Foo.class.getSimpleName(), foo.ping());
+            // BeanWithQualifier should be resolved
+            Assertions.assertNotNull(bean);
+            Assertions.assertEquals(BeanWithQualifier.class.getSimpleName(), bean.ping());
+        }
+
+        @Nested
+        class TwiceNestedTestClass1 {
+
+            @Test
+            public void testParameterResolution(@Default Foo foo, Bar bar, @MyQualifier BeanWithQualifier bean) {
+                // Bar should be resolved by another extension
+                Assertions.assertNotNull(bar);
+                Assertions.assertEquals(Bar.class.getSimpleName(), bar.ping());
+                // Foo should be resolved as usual
+                Assertions.assertNotNull(foo);
+                Assertions.assertEquals(Foo.class.getSimpleName(), foo.ping());
+                // BeanWithQualifier should be resolved
+                Assertions.assertNotNull(bean);
+                Assertions.assertEquals(BeanWithQualifier.class.getSimpleName(), bean.ping());
+            }
+        }
+
+        @Nested
+        @ExplicitParamInjection(true)
+        @ExtendWith(CustomExtension.class) // TwiceNestedTestClass2 and ThriceNestedClass will both use this
+        class TwiceNestedTestClass2 {
+
+            @Test
+            public void testParameterResolution(@Default Foo foo, Bar bar, @MyQualifier BeanWithQualifier bean) {
+                // Bar should be resolved by another extension
+                Assertions.assertNotNull(bar);
+                Assertions.assertEquals(CustomExtension.class.getSimpleName(), bar.ping());
+                // Foo should be resolved as usual
+                Assertions.assertNotNull(foo);
+                Assertions.assertEquals(Foo.class.getSimpleName(), foo.ping());
+                // BeanWithQualifier should be resolved
+                Assertions.assertNotNull(bean);
+                Assertions.assertEquals(BeanWithQualifier.class.getSimpleName(), bean.ping());
+            }
+
+            @Nested
+            class ThriceNestedClass {
+
+                @Test
+                public void testParameterResolution(@Default Foo foo, Bar bar, @MyQualifier BeanWithQualifier bean) {
+                    // Bar should be resolved by another extension
+                    Assertions.assertNotNull(bar);
+                    Assertions.assertEquals(CustomExtension.class.getSimpleName(), bar.ping());
+                    // Foo should be resolved as usual
+                    Assertions.assertNotNull(foo);
+                    Assertions.assertEquals(Foo.class.getSimpleName(), foo.ping());
+                    // BeanWithQualifier should be resolved
+                    Assertions.assertNotNull(bean);
+                    Assertions.assertEquals(BeanWithQualifier.class.getSimpleName(), bean.ping());
+                }
+            }
+        }
+    }
+}

junit5/src/test/java/org/jboss/weld/junit5/explicitInjection/ExplicitParameterInjectionNestedClassTest.java

@@ -0,0 +1,102 @@
+package org.jboss.weld.junit5.explicitInjection;
+
+import jakarta.enterprise.inject.Default;
+
+import org.jboss.weld.junit5.ExplicitParamInjection;
+import org.jboss.weld.junit5.WeldJunit5Extension;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+
+// Note that @ExtendWith(CustomExtension.class) has to be on each method separately. The inheritance of this would
+// otherwise cause failures for TwiceNestedTestClass2 and ThriceNestedClass where Weld claims all parameters.
+@ExtendWith(WeldJunit5Extension.class)
+@ExplicitParamInjection(true)
+public class ExplicitParameterInjectionNestedClassTest {
+
+    @Test
+    @ExtendWith(CustomExtension.class)
+    public void testParameterResolution(@Default Foo foo, Bar bar, @MyQualifier BeanWithQualifier bean) {
+        // Bar should be resolved by another extension
+        Assertions.assertNotNull(bar);
+        Assertions.assertEquals(CustomExtension.class.getSimpleName(), bar.ping());
+        // Foo should be resolved as usual
+        Assertions.assertNotNull(foo);
+        Assertions.assertEquals(Foo.class.getSimpleName(), foo.ping());
+        // BeanWithQualifier should be resolved
+        Assertions.assertNotNull(bean);
+        Assertions.assertEquals(BeanWithQualifier.class.getSimpleName(), bean.ping());
+    }
+
+    @Nested
+    class NestedTestClass {
+
+        @Test
+        @ExtendWith(CustomExtension.class)
+        public void testParameterResolution(@Default Foo foo, Bar bar, @MyQualifier BeanWithQualifier bean) {
+            // Bar should be resolved by another extension
+            Assertions.assertNotNull(bar);
+            Assertions.assertEquals(CustomExtension.class.getSimpleName(), bar.ping());
+            // Foo should be resolved as usual
+            Assertions.assertNotNull(foo);
+            Assertions.assertEquals(Foo.class.getSimpleName(), foo.ping());
+            // BeanWithQualifier should be resolved
+            Assertions.assertNotNull(bean);
+            Assertions.assertEquals(BeanWithQualifier.class.getSimpleName(), bean.ping());
+        }
+
+        @Nested
+        class TwiceNestedTestClass1 {
+
+            @Test
+            @ExtendWith(CustomExtension.class)
+            public void testParameterResolution(@Default Foo foo, Bar bar, @MyQualifier BeanWithQualifier bean) {
+                // Bar should be resolved by another extension
+                Assertions.assertNotNull(bar);
+                Assertions.assertEquals(CustomExtension.class.getSimpleName(), bar.ping());
+                // Foo should be resolved as usual
+                Assertions.assertNotNull(foo);
+                Assertions.assertEquals(Foo.class.getSimpleName(), foo.ping());
+                // BeanWithQualifier should be resolved
+                Assertions.assertNotNull(bean);
+                Assertions.assertEquals(BeanWithQualifier.class.getSimpleName(), bean.ping());
+            }
+        }
+
+        @Nested
+        @ExplicitParamInjection(false)
+        class TwiceNestedTestClass2 {
+
+            @Test
+            public void testParameterResolution(@Default Foo foo, Bar bar, @MyQualifier BeanWithQualifier bean) {
+                // Bar should be resolved by another extension
+                Assertions.assertNotNull(bar);
+                Assertions.assertEquals(Bar.class.getSimpleName(), bar.ping());
+                // Foo should be resolved as usual
+                Assertions.assertNotNull(foo);
+                Assertions.assertEquals(Foo.class.getSimpleName(), foo.ping());
+                // BeanWithQualifier should be resolved
+                Assertions.assertNotNull(bean);
+                Assertions.assertEquals(BeanWithQualifier.class.getSimpleName(), bean.ping());
+            }
+
+            @Nested
+            class ThriceNestedClass {
+
+                @Test
+                public void testParameterResolution(@Default Foo foo, Bar bar, @MyQualifier BeanWithQualifier bean) {
+                    // NOTE: Bar should be Weld again!
+                    Assertions.assertNotNull(bar);
+                    Assertions.assertEquals(Bar.class.getSimpleName(), bar.ping());
+                    // Foo should be resolved as usual
+                    Assertions.assertNotNull(foo);
+                    Assertions.assertEquals(Foo.class.getSimpleName(), foo.ping());
+                    // BeanWithQualifier should be resolved
+                    Assertions.assertNotNull(bean);
+                    Assertions.assertEquals(BeanWithQualifier.class.getSimpleName(), bean.ping());
+                }
+            }
+        }
+    }
+}