BAEL-4068 Add AspectJ DI to module spring-di-2

spring-di-2/src/test/java/com/baeldung/di/aspectj/PersonUnitTest.java

@@ -0,0 +1,24 @@
+package com.baeldung.di.aspectj;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import static org.junit.Assert.assertEquals;
+
+@RunWith(SpringRunner.class)
+@ContextConfiguration(classes = AspectJConfig.class)
+public class PersonUnitTest {
+    @Test
+    public void givenUnmanagedObjects_whenInjectingIdService_thenIdValueIsCorrectlySet() {
+        PersonObject personObject = new PersonObject("Baeldung");
+        personObject.generateId();
+        assertEquals(1, personObject.getId());
+        assertEquals("Baeldung", personObject.getName());
+
+        PersonEntity personEntity = new PersonEntity("Baeldung");
+        assertEquals(2, personEntity.getId());
+        assertEquals("Baeldung", personEntity.getName());
+    }
+}