@Lazy annotation (#3809)

spring-core/src/test/java/com/baeldung/Lazy/LazyAnnotationUnitTest.java

@@ -0,0 +1,37 @@
+package com.baeldung.Lazy;
+
+import com.baeldung.lazy.AppConfig;
+import com.baeldung.lazy.Country;
+import com.baeldung.lazy.Region;
+import org.junit.Test;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
+
+public class LazyAnnotationUnitTest {
+
+    @Test
+    public void givenLazyAnnotation_whenConfigClass_thenLazyAll() {
+        // Add @Lazy to AppConfig.class while testing
+        AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext();
+        ctx.register(AppConfig.class);
+        ctx.refresh();
+        ctx.getBean(Region.class);
+        ctx.getBean(Country.class);
+    }
+
+    @Test
+    public void givenLazyAnnotation_whenAutowire_thenLazyBean() {
+        AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext();
+        ctx.register(AppConfig.class);
+        ctx.refresh();
+        Region region = ctx.getBean(Region.class);
+        region.getCityInstance();
+    }
+
+    @Test
+    public void givenLazyAnnotation_whenBeanConfig_thenLazyBean() {
+        AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext();
+        ctx.register(AppConfig.class);
+        ctx.refresh();
+        ctx.getBean(Region.class);
+    }
+}