* Added test for constructor dependency injection article

* removed spring version in xml file

spring-core/pom.xml

@@ -56,6 +56,12 @@
             <artifactId>spring-boot-test</artifactId>
             <version>${mockito.spring.boot.version}</version>
             <scope>test</scope>
+        </dependency>
+         <dependency>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-core</artifactId>
+            <version>${assertj.version}</version>
+            <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>commons-io</groupId>
@@ -85,6 +91,7 @@
         <commons.io.version>2.5</commons.io.version>
         <spring-boot.version>1.5.2.RELEASE</spring-boot.version>
         <mockito.version>1.10.19</mockito.version>
+        <assertj.version>3.12.2</assertj.version>
     </properties>
 
 </project>

spring-core/src/main/resources/constructordi.xml

@@ -1,19 +1,21 @@
 <beans xmlns="http://www.springframework.org/schema/beans"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://www.springframework.org/schema/beans
-    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
+    https://www.springframework.org/schema/beans/spring-beans.xsd">
 
     <bean id="toyota" class="com.baeldung.constructordi.domain.Car">
         <constructor-arg index="0" ref="engine" />
         <constructor-arg index="1" ref="transmission" />
     </bean>
 
-    <bean id="engine" class="com.baeldung.constructordi.domain.Engine">
+    <bean id="engine"
+        class="com.baeldung.constructordi.domain.Engine">
         <constructor-arg index="0" value="v4" />
         <constructor-arg index="1" value="2" />
     </bean>
 
-    <bean id="transmission" class="com.baeldung.constructordi.domain.Transmission">
+    <bean id="transmission"
+        class="com.baeldung.constructordi.domain.Transmission">
         <constructor-arg value="sliding" />
     </bean>
 

spring-core/src/test/java/com/baeldung/constructordi/ConstructorDependencyInjectionIntegrationTest.java

@@ -0,0 +1,33 @@
+package com.baeldung.constructordi;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.support.AnnotationConfigContextLoader;
+
+import com.baeldung.constructordi.domain.Car;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(loader = AnnotationConfigContextLoader.class, classes = Config.class)
+public class ConstructorDependencyInjectionIntegrationTest {
+
+    @Test
+    public void givenPrototypeInjection_WhenObjectFactory_ThenNewInstanceReturn() {
+        ApplicationContext context = new AnnotationConfigApplicationContext(Config.class);
+        Car firstContextCar = context.getBean(Car.class);
+
+        ApplicationContext xmlContext = new ClassPathXmlApplicationContext("constructordi.xml");
+        Car secondContextCar = xmlContext.getBean(Car.class);
+
+        assertThat(firstContextCar).isNotSameAs(secondContextCar);
+        assertThat(firstContextCar).hasToString("Engine: v8 5 Transmission: sliding");
+        assertThat(secondContextCar).hasToString("Engine: v4 2 Transmission: sliding");
+    }
+
+}