BAEL-4094: Code example for Spring ApplicationContext article (#9656)

spring-core-4/src/test/java/com/baeldung/applicationcontext/ApplicationContextUnitTest.java

@@ -0,0 +1,71 @@
+package com.baeldung.applicationcontext;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+import org.junit.Ignore;
+import org.junit.Test;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+import org.springframework.context.support.FileSystemXmlApplicationContext;
+
+public class ApplicationContextUnitTest {
+
+    @Test
+    public void givenAnnotationConfigAppContext_whenSpringConfig_thenMappingSuccess() {
+        ApplicationContext context = new AnnotationConfigApplicationContext(AccountConfig.class);
+        AccountService accountService = context.getBean(AccountService.class);
+
+        assertNotNull(accountService);
+        assertNotNull(accountService.getAccountRepository());
+
+        ((AnnotationConfigApplicationContext) context).close();
+    }
+
+    @Test
+    public void givenClasspathXmlAppContext_whenAnnotationConfig_thenMappingSuccess() {
+        ApplicationContext context = new ClassPathXmlApplicationContext("applicationcontext/user-bean-config.xml");
+        UserService userService = context.getBean(UserService.class);
+
+        assertNotNull(userService);
+
+        ((ClassPathXmlApplicationContext) context).close();
+    }
+
+    @Test
+    @Ignore
+    public void givenFileXmlAppContext_whenXMLConfig_thenMappingSuccess() {
+        String path = "D:/workspaces/Baeldung/tutorials/spring-core-4/src/test/resources/applicationcontext/account-bean-config.xml";
+
+        ApplicationContext context = new FileSystemXmlApplicationContext(path);
+        AccountService accountService = context.getBean("accountService", AccountService.class);
+
+        assertNotNull(accountService);
+        assertNotNull(accountService.getAccountRepository());
+
+        ((FileSystemXmlApplicationContext) context).close();
+    }
+
+    @Test
+    public void givenClasspathXmlAppContext_whenXMLConfig_thenMappingSuccess() {
+        ApplicationContext context = new ClassPathXmlApplicationContext("applicationcontext/account-bean-config.xml");
+        AccountService accountService = context.getBean("accountService", AccountService.class);
+
+        assertNotNull(accountService);
+        assertNotNull(accountService.getAccountRepository());
+
+        ((ClassPathXmlApplicationContext) context).close();
+    }
+
+    @Test
+    public void givenMessagesInFile_whenMessageResourceUsed_thenReadMessage() {
+        ApplicationContext context = new AnnotationConfigApplicationContext(AccountConfig.class);
+        AccountService accountService = context.getBean(AccountService.class);
+
+        assertEquals("TestAccount", accountService.getAccountName());
+
+        ((AnnotationConfigApplicationContext) context).close();
+    }
+
+}

spring-core-4/src/test/resources/applicationcontext/account-bean-config.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<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.xsd">
+	  
+	<bean id="accountService" class="com.baeldung.applicationcontext.AccountService">
+		<constructor-arg name="accountRepository" ref="accountRepository" />
+	</bean>
+	
+	<bean id="accountRepository" class="com.baeldung.applicationcontext.AccountRepository" />
+</beans>

spring-core-4/src/test/resources/applicationcontext/user-bean-config.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xmlns:context="http://www.springframework.org/schema/context"
+	xsi:schemaLocation="
+	  http://www.springframework.org/schema/beans 
+	  http://www.springframework.org/schema/beans/spring-beans.xsd 
+	  http://www.springframework.org/schema/context 
+	  http://www.springframework.org/schema/context/spring-context.xsd">
+
+	<context:annotation-config />
+	<context:component-scan
+		base-package="com.baeldung.applicationcontext" />
+
+</beans>

spring-core-4/src/test/resources/config/messages.properties

@@ -0,0 +1 @@
+account.name=TestAccount