Merge pull request #1804 from geoand/#1749

Allow beans to be injected in tests even if they aren't used in the application

Author: geoand

core/deployment/src/main/java/io/quarkus/deployment/builditem/TestAnnotationBuildItem.java

@@ -0,0 +1,20 @@
+package io.quarkus.deployment.builditem;
+
+import org.jboss.builder.item.MultiBuildItem;
+
+/**
+ * This is an optional build item that allows us to track annotations that will define test classes
+ * It is only available during tests
+ */
+public final class TestAnnotationBuildItem extends MultiBuildItem {
+
+    private final String annotationClassName;
+
+    public TestAnnotationBuildItem(String annotationClassName) {
+        this.annotationClassName = annotationClassName;
+    }
+
+    public String getAnnotationClassName() {
+        return annotationClassName;
+    }
+}

extensions/arc/deployment/src/main/java/io/quarkus/arc/deployment/TestsAsBeanDefiningAnnotationsProcessor.java

@@ -0,0 +1,20 @@
+package io.quarkus.arc.deployment;
+
+import java.util.List;
+
+import org.jboss.jandex.DotName;
+
+import io.quarkus.deployment.annotations.BuildProducer;
+import io.quarkus.deployment.annotations.BuildStep;
+import io.quarkus.deployment.builditem.TestAnnotationBuildItem;
+
+public class TestsAsBeanDefiningAnnotationsProcessor {
+
+    @BuildStep
+    public void produce(List<TestAnnotationBuildItem> items, BuildProducer<BeanDefiningAnnotationBuildItem> producer) {
+        for (TestAnnotationBuildItem item : items) {
+            producer.produce(new BeanDefiningAnnotationBuildItem(DotName.createSimple(item.getAnnotationClassName())));
+        }
+    }
+
+}

integration-tests/main/src/main/java/io/quarkus/example/arc/UnusedBean.java

@@ -0,0 +1,7 @@
+package io.quarkus.example.arc;
+
+import javax.enterprise.context.ApplicationScoped;
+
+@ApplicationScoped
+public class UnusedBean {
+}

integration-tests/main/src/test/java/io/quarkus/example/test/BeanOnlyInTestCase.java

@@ -0,0 +1,22 @@
+package io.quarkus.example.test;
+
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+import javax.inject.Inject;
+
+import org.junit.jupiter.api.Test;
+
+import io.quarkus.example.arc.UnusedBean;
+import io.quarkus.test.junit.QuarkusTest;
+
+@QuarkusTest
+class BeanOnlyInTestCase {
+
+    @Inject
+    UnusedBean unusedBean;
+
+    @Test
+    void assertBeanIsInjected() {
+        assertNotNull(unusedBean);
+    }
+}

test-framework/junit4/src/main/java/io/quarkus/test/junit4/QuarkusTest.java

@@ -20,10 +20,16 @@
 import static io.quarkus.test.common.PathTestHelper.getTestClassesLocation;
 
 import java.io.IOException;
+import java.util.function.Consumer;
 
+import org.jboss.builder.BuildChainBuilder;
+import org.jboss.builder.BuildContext;
+import org.jboss.builder.BuildStep;
+import org.junit.runner.RunWith;
 import org.junit.runner.notification.RunNotifier;
 import org.junit.runners.model.InitializationError;
 
+import io.quarkus.deployment.builditem.TestAnnotationBuildItem;
 import io.quarkus.runner.RuntimeRunner;
 import io.quarkus.runtime.LaunchMode;
 import io.quarkus.test.common.PropertyTestUtil;
@@ -50,6 +56,18 @@ protected void startQuarkus() {
                     .setClassLoader(getClass().getClassLoader())
                     .setTarget(getAppClassLocation(getTestClass()))
                     .setFrameworkClassesPath(getTestClassesLocation(getTestClass()))
+                    .addChainCustomizer(new Consumer<BuildChainBuilder>() {
+                        @Override
+                        public void accept(BuildChainBuilder buildChainBuilder) {
+                            buildChainBuilder.addBuildStep(new BuildStep() {
+                                @Override
+                                public void execute(BuildContext context) {
+                                    context.produce(new TestAnnotationBuildItem(RunWith.class.getName()));
+                                }
+                            }).produces(TestAnnotationBuildItem.class)
+                                    .build();
+                        }
+                    })
                     .build();
             runtimeRunner.run();
         }

test-framework/junit5/src/main/java/io/quarkus/test/junit/QuarkusTestExtension.java

@@ -56,6 +56,7 @@
 import io.quarkus.bootstrap.util.PropertyUtils;
 import io.quarkus.deployment.ClassOutput;
 import io.quarkus.deployment.QuarkusClassWriter;
+import io.quarkus.deployment.builditem.TestAnnotationBuildItem;
 import io.quarkus.deployment.builditem.TestClassPredicateBuildItem;
 import io.quarkus.deployment.util.IoUtil;
 import io.quarkus.runner.RuntimeRunner;
@@ -243,6 +244,18 @@ public boolean test(String className) {
                                 .build();
                     }
                 })
+                .addChainCustomizer(new Consumer<BuildChainBuilder>() {
+                    @Override
+                    public void accept(BuildChainBuilder buildChainBuilder) {
+                        buildChainBuilder.addBuildStep(new BuildStep() {
+                            @Override
+                            public void execute(BuildContext context) {
+                                context.produce(new TestAnnotationBuildItem(QuarkusTest.class.getName()));
+                            }
+                        }).produces(TestAnnotationBuildItem.class)
+                                .build();
+                    }
+                })
                 .build();
         runtimeRunner.run();