BAEL-1592 (#3773)

* Injecting Prototype Beans into Singleton Instance

* removed final keywords from the test

spring-core/src/test/java/com/baeldung/scope/PrototypeBeanInjectionTest.java

@@ -0,0 +1,61 @@
+package com.baeldung.scope;
+
+import com.baeldung.scope.prototype.PrototypeBean;
+import com.baeldung.scope.singletone.SingletonLookupBean;
+import com.baeldung.scope.singletone.SingletonObjectFactoryBean;
+import com.baeldung.scope.singletone.SingletonProviderBean;
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
+import org.springframework.context.support.AbstractApplicationContext;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.support.AnnotationConfigContextLoader;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(loader = AnnotationConfigContextLoader.class, classes = AppConfig.class)
+public class PrototypeBeanInjectionTest {
+
+    @Test
+    public void givenPrototypeInjection_WhenObjectFactory_ThenNewInstanceReturn() {
+
+        AbstractApplicationContext context = new AnnotationConfigApplicationContext(AppConfig.class);
+
+        SingletonObjectFactoryBean firstContext = context.getBean(SingletonObjectFactoryBean.class);
+        SingletonObjectFactoryBean secondContext = context.getBean(SingletonObjectFactoryBean.class);
+
+        PrototypeBean firstInstance = firstContext.getPrototypeInstance();
+        PrototypeBean secondInstance = secondContext.getPrototypeInstance();
+
+        Assert.assertTrue("New instance expected", firstInstance != secondInstance);
+    }
+
+    @Test
+    public void givenPrototypeInjection_WhenLookup_ThenNewInstanceReturn() {
+
+        AbstractApplicationContext context = new AnnotationConfigApplicationContext(AppConfig.class);
+
+        SingletonLookupBean firstContext = context.getBean(SingletonLookupBean.class);
+        SingletonLookupBean secondContext = context.getBean(SingletonLookupBean.class);
+
+        PrototypeBean firstInstance = firstContext.getPrototypeBean();
+        PrototypeBean secondInstance = secondContext.getPrototypeBean();
+
+        Assert.assertTrue("New instance expected", firstInstance != secondInstance);
+    }
+
+    @Test
+    public void givenPrototypeInjection_WhenProvider_ThenNewInstanceReturn() {
+
+        AbstractApplicationContext context = new AnnotationConfigApplicationContext(AppConfig.class);
+
+        SingletonProviderBean firstContext = context.getBean(SingletonProviderBean.class);
+        SingletonProviderBean secondContext = context.getBean(SingletonProviderBean.class);
+
+        PrototypeBean firstInstance = firstContext.getPrototypeInstance();
+        PrototypeBean secondInstance = secondContext.getPrototypeInstance();
+
+        Assert.assertTrue("New instance expected", firstInstance != secondInstance);
+    }
+}