Code and related files for the dependency injection demos.

dependency-injection/src/test/java/com/baeldung/autowired/FieldAutowiredNameTest.java

@@ -8,20 +8,24 @@ import org.junit.runner.RunWith;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.support.AnnotationConfigContextLoader;
 
+import com.baeldung.configuration.ApplicationContextTestAutowiredName;
 import com.baeldung.dependency.ArbitraryDependency;
 
 @RunWith(SpringJUnit4ClassRunner.class)
-@ContextConfiguration(locations={
-		"/applicationContextTest-@Autowired-Name.xml"})
-public class FieldAutowiredNameDemo {
+@ContextConfiguration(
+    loader=AnnotationConfigContextLoader.class,
+    classes=ApplicationContextTestAutowiredName.class)
+public class FieldAutowiredNameTest {
 
     @Autowired
     private ArbitraryDependency autowiredFieldDependency;
 
     @Test
-    public void autowiredFieldDependency_MUST_BE_AUTOWIRED_Correctly() {
+    public void givenAutowiredAnnotation_WhenOnField_ThenDependencyValid(){
         assertNotNull(autowiredFieldDependency);
-        assertEquals("Arbitrary Dependency", autowiredFieldDependency.toString());
+        assertEquals("Arbitrary Dependency",
+                        autowiredFieldDependency.toString());
 	}
 }

dependency-injection/src/test/java/com/baeldung/autowired/FieldAutowiredTest.java

@@ -8,19 +8,22 @@ import org.junit.runner.RunWith;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.support.AnnotationConfigContextLoader;
 
+import com.baeldung.configuration.ApplicationContextTestAutowiredType;
 import com.baeldung.dependency.ArbitraryDependency;
 
 @RunWith(SpringJUnit4ClassRunner.class)
-@ContextConfiguration(locations={
-		"/applicationContextTest-@Autowired-Type.xml"})
-public class FieldAutowiredDemo {
+@ContextConfiguration(
+    loader=AnnotationConfigContextLoader.class,
+    classes=ApplicationContextTestAutowiredType.class)
+public class FieldAutowiredTest {
 
     @Autowired
     private ArbitraryDependency fieldDependency;
 
     @Test
-    public void fieldDependency_MUST_BE_AUTOWIRED_Correctly() {
+    public void givenAutowired_WhenSetOnField_ThenDependencyResolved() {
         assertNotNull(fieldDependency);
         assertEquals("Arbitrary Dependency", fieldDependency.toString());
     }

dependency-injection/src/test/java/com/baeldung/autowired/FieldQualifierAutowiredTest.java

@@ -9,13 +9,16 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.support.AnnotationConfigContextLoader;
 
+import com.baeldung.configuration.ApplicationContextTestAutowiredQualifier;
 import com.baeldung.dependency.ArbitraryDependency;
 
 @RunWith(SpringJUnit4ClassRunner.class)
-@ContextConfiguration(locations={
-		"/applicationContextTest-@Autowired-Qualifier.xml"})
-public class FieldQualifierAutowiredDemo {
+@ContextConfiguration(
+    loader=AnnotationConfigContextLoader.class,
+    classes=ApplicationContextTestAutowiredQualifier.class)
+public class FieldQualifierAutowiredTest {
 
     @Autowired
     @Qualifier("autowiredFieldDependency")
@@ -26,14 +29,15 @@ public class FieldQualifierAutowiredDemo {
     private ArbitraryDependency fieldDependency2;
 
     @Test
-    public void fieldDependency1_MUST_BE_AUTOWIRED_Correctly() {
+    public void givenAutowiredQualifier_WhenOnField_ThenDep1Valid(){
         assertNotNull(fieldDependency1);
         assertEquals("Arbitrary Dependency", fieldDependency1.toString());
     }
 
     @Test
-    public void fieldDependency2_MUST_BE_AUTOWIRED_Correctly() {
+    public void givenAutowiredQualifier_WhenOnField_ThenDep2Valid(){
         assertNotNull(fieldDependency2);
-        assertEquals("Another Arbitrary Dependency", fieldDependency2.toString());
+        assertEquals("Another Arbitrary Dependency",
+                        fieldDependency2.toString());
     }
 }

dependency-injection/src/test/java/com/baeldung/configuration/ApplicationContextTestAutowiredName.java

@@ -0,0 +1,9 @@
+package com.baeldung.configuration;
+
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@ComponentScan(basePackages={"com.baeldung.dependency"})
+public class ApplicationContextTestAutowiredName {
+}

dependency-injection/src/test/java/com/baeldung/configuration/ApplicationContextTestAutowiredQualifier.java

@@ -0,0 +1,25 @@
+package com.baeldung.configuration;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+import com.baeldung.dependency.AnotherArbitraryDependency;
+import com.baeldung.dependency.ArbitraryDependency;
+
+@Configuration
+public class ApplicationContextTestAutowiredQualifier {
+
+	@Bean
+	public ArbitraryDependency autowiredFieldDependency() {
+		ArbitraryDependency autowiredFieldDependency = new ArbitraryDependency();
+
+		return autowiredFieldDependency;
+	}
+
+	@Bean
+	public ArbitraryDependency anotherAutowiredFieldDependency() {
+		ArbitraryDependency anotherAutowiredFieldDependency = new AnotherArbitraryDependency();
+
+		return anotherAutowiredFieldDependency;
+	}
+}

dependency-injection/src/test/java/com/baeldung/configuration/ApplicationContextTestAutowiredType.java

@@ -0,0 +1,16 @@
+package com.baeldung.configuration;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+import com.baeldung.dependency.ArbitraryDependency;
+
+@Configuration
+public class ApplicationContextTestAutowiredType {
+
+    @Bean
+    public ArbitraryDependency autowiredFieldDependency() {
+        ArbitraryDependency autowiredFieldDependency = new ArbitraryDependency();
+        return autowiredFieldDependency;
+    }
+}

dependency-injection/src/test/java/com/baeldung/configuration/ApplicationContextTestInjectName.java

@@ -0,0 +1,17 @@
+package com.baeldung.configuration;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+import com.baeldung.dependency.ArbitraryDependency;
+import com.baeldung.dependency.YetAnotherArbitraryDependency;
+
+@Configuration
+public class ApplicationContextTestInjectName {
+
+    @Bean
+    public ArbitraryDependency yetAnotherFieldInjectDependency() {
+        ArbitraryDependency yetAnotherFieldInjectDependency = new YetAnotherArbitraryDependency();
+        return yetAnotherFieldInjectDependency;
+    }
+}

dependency-injection/src/test/java/com/baeldung/configuration/ApplicationContextTestInjectQualifier.java

@@ -0,0 +1,23 @@
+package com.baeldung.configuration;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+import com.baeldung.dependency.AnotherArbitraryDependency;
+import com.baeldung.dependency.ArbitraryDependency;
+
+@Configuration
+public class ApplicationContextTestInjectQualifier {
+
+	@Bean
+	public ArbitraryDependency defaultFile() {
+		ArbitraryDependency defaultFile = new ArbitraryDependency();
+		return defaultFile;
+	}
+
+	@Bean
+	public ArbitraryDependency namedFile() {
+		ArbitraryDependency namedFile = new AnotherArbitraryDependency();
+		return namedFile;
+	}
+}

dependency-injection/src/test/java/com/baeldung/configuration/ApplicationContextTestInjectType.java

@@ -0,0 +1,16 @@
+package com.baeldung.configuration;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+import com.baeldung.dependency.ArbitraryDependency;
+
+@Configuration
+public class ApplicationContextTestInjectType {
+
+	@Bean
+	public ArbitraryDependency injectDependency() {
+		ArbitraryDependency injectDependency = new ArbitraryDependency();
+		return injectDependency;
+	}
+}

dependency-injection/src/test/java/com/baeldung/configuration/ApplicationContextTestResourceNameType.java

@@ -0,0 +1,16 @@
+package com.baeldung.configuration;
+
+import java.io.File;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class ApplicationContextTestResourceNameType {
+
+    @Bean(name="namedFile")
+    public File namedFile() {
+        File namedFile = new File("namedFile.txt");
+        return namedFile;
+    }
+}

dependency-injection/src/test/java/com/baeldung/configuration/ApplicationContextTestResourceQualifier.java

@@ -0,0 +1,22 @@
+package com.baeldung.configuration;
+
+import java.io.File;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class ApplicationContextTestResourceQualifier {
+
+    @Bean(name="defaultFile")
+    public File defaultFile() {
+        File defaultFile = new File("defaultFile.txt");
+        return defaultFile;
+    }
+
+    @Bean(name="namedFile")
+    public File namedFile() {
+        File namedFile = new File("namedFile.txt");
+        return namedFile;
+    }
+}

dependency-injection/src/test/java/com/baeldung/dependency/AnotherArbitraryDependency.java

@@ -1,5 +1,8 @@
 package com.baeldung.dependency;
 
+import org.springframework.stereotype.Component;
+
+@Component
 public class AnotherArbitraryDependency extends ArbitraryDependency {
 
     private final String label = "Another Arbitrary Dependency";

dependency-injection/src/test/java/com/baeldung/dependency/ArbitraryDependency.java

@@ -1,5 +1,8 @@
 package com.baeldung.dependency;
 
+import org.springframework.stereotype.Component;
+
+@Component(value="autowiredFieldDependency")
 public class ArbitraryDependency {
 
     private final String label = "Arbitrary Dependency";

dependency-injection/src/test/java/com/baeldung/dependency/YetAnotherArbitraryDependency.java

@@ -1,5 +1,8 @@
 package com.baeldung.dependency;
 
+import org.springframework.stereotype.Component;
+
+@Component
 public class YetAnotherArbitraryDependency extends ArbitraryDependency {
 
     private final String label = "Yet Another Arbitrary Dependency";

dependency-injection/src/test/java/com/baeldung/inject/FieldByNameInjectTest.java

@@ -10,21 +10,25 @@ import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.support.AnnotationConfigContextLoader;
 
+import com.baeldung.configuration.ApplicationContextTestInjectName;
 import com.baeldung.dependency.ArbitraryDependency;
 
 @RunWith(SpringJUnit4ClassRunner.class)
-@ContextConfiguration(locations={
-		"/applicationContextTest-@Inject-Name.xml"})
-public class FieldByNameInjectDemo {
+@ContextConfiguration(
+    loader=AnnotationConfigContextLoader.class,
+    classes=ApplicationContextTestInjectName.class)
+public class FieldByNameInjectTest {
 
     @Inject
     @Named("yetAnotherFieldInjectDependency")
     private ArbitraryDependency yetAnotherFieldInjectDependency;
 
     @Test
-    public void yetAnotherFieldInjectDependency_MUST_BE_INJECTED_Correctly() {
+    public void givenInjectQualifier_WhenSetOnField_ThenDependencyValid() {
         assertNotNull(yetAnotherFieldInjectDependency);
-        assertEquals("Yet Another Arbitrary Dependency", yetAnotherFieldInjectDependency.toString());
+        assertEquals("Yet Another Arbitrary Dependency",
+        		       yetAnotherFieldInjectDependency.toString());
     }
 }

dependency-injection/src/test/java/com/baeldung/inject/FieldInjectDemo.java

@@ -1,27 +0,0 @@
-package com.baeldung.inject;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-
-import javax.inject.Inject;
-
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.springframework.test.context.ContextConfiguration;
-import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
-
-import com.baeldung.dependency.ArbitraryDependency;
-
-@RunWith(SpringJUnit4ClassRunner.class)
-@ContextConfiguration(locations={
-		"/applicationContextTest-@Inject-Type.xml"})
-public class FieldInjectDemo {
-
-    @Inject
-    private ArbitraryDependency inject1Dependency;
-
-    @Test
-    public void fieldDependency_MUST_BE_INJECTED_Successfully() {
-        assertNotNull(inject1Dependency);
-        assertEquals("Arbitrary Dependency", inject1Dependency.toString());
-    }
-}

dependency-injection/src/test/java/com/baeldung/inject/FieldInjectTest.java

@@ -0,0 +1,31 @@
+package com.baeldung.inject;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+import javax.inject.Inject;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.support.AnnotationConfigContextLoader;
+
+import com.baeldung.configuration.ApplicationContextTestInjectType;
+import com.baeldung.dependency.ArbitraryDependency;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(
+    loader=AnnotationConfigContextLoader.class,
+    classes=ApplicationContextTestInjectType.class)
+public class FieldInjectTest {
+
+    @Inject
+    private ArbitraryDependency fieldInjectDependency;
+
+    @Test
+    public void givenInjectAnnotation_WhenOnField_ThenValidDependency(){
+        assertNotNull(fieldInjectDependency);
+        assertEquals("Arbitrary Dependency",
+                        fieldInjectDependency.toString());
+    }
+}

dependency-injection/src/test/java/com/baeldung/inject/FieldQualifierInjectTest.java

@@ -10,13 +10,15 @@ import org.junit.runner.RunWith;
 import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.support.AnnotationConfigContextLoader;
 
+import com.baeldung.configuration.ApplicationContextTestInjectQualifier;
 import com.baeldung.dependency.ArbitraryDependency;
 
 @RunWith(SpringJUnit4ClassRunner.class)
-@ContextConfiguration(locations={
-		"/applicationContextTest-@Inject-Qualifier.xml"})
-public class FieldQualifierInjectDemo {
+@ContextConfiguration(loader=AnnotationConfigContextLoader.class,
+                      classes=ApplicationContextTestInjectQualifier.class)
+public class FieldQualifierInjectTest {
 
     @Inject
     @Qualifier("defaultFile")
@@ -27,14 +29,16 @@ public class FieldQualifierInjectDemo {
     private ArbitraryDependency namedDependency;
 
     @Test
-    public void defaultDependency_MUST_BE_INJECTED_Successfully() {
+    public void givenInjectQualifier_WhenOnField_ThenDefaultFileValid(){
         assertNotNull(defaultDependency);
-        assertEquals("Arbitrary Dependency", defaultDependency.toString());
+        assertEquals("Arbitrary Dependency",
+                        defaultDependency.toString());
     }
 
     @Test
-    public void namedDependency_MUST_BE_INJECTED_Correctly() {
+    public void givenInjectQualifier_WhenOnField_ThenNamedFileValid(){
         assertNotNull(defaultDependency);
-        assertEquals("Another Arbitrary Dependency", namedDependency.toString());
+        assertEquals("Another Arbitrary Dependency",
+                        namedDependency.toString());
     }
 }

dependency-injection/src/test/java/com/baeldung/resource/FieldResourceInjectionDemo.java

@@ -1,25 +0,0 @@
-package com.baeldung.resource;
-import static org.junit.Assert.assertNotNull;
-
-import java.io.File;
-
-import javax.annotation.Resource;
-
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.springframework.test.context.ContextConfiguration;
-import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
-
-@RunWith(SpringJUnit4ClassRunner.class)
-@ContextConfiguration(locations={
-		"/applicationContextTest-@Resource-NameType.xml"})
-public class FieldResourceInjectionDemo {
-
-    @Resource(name="namedFile")
-    private File defaultFile;
-
-    @Test
-    public void plainResourceAnnotation_MUST_FIND_DefaultFile() {
-        assertNotNull(defaultFile);
-    }
-}

dependency-injection/src/test/java/com/baeldung/resource/FieldResourceInjectionTest.java

@@ -0,0 +1,31 @@
+package com.baeldung.resource;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+import java.io.File;
+
+import javax.annotation.Resource;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.support.AnnotationConfigContextLoader;
+
+import com.baeldung.configuration.ApplicationContextTestResourceNameType;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(
+    loader=AnnotationConfigContextLoader.class,
+    classes=ApplicationContextTestResourceNameType.class)
+public class FieldResourceInjectionTest {
+
+    @Resource(name="namedFile")
+    private File defaultFile;
+
+    @Test
+    public void givenResourceAnnotation_WhenOnField_ThenDependencyValid(){
+        assertNotNull(defaultFile);
+        assertEquals("namedFile.txt", defaultFile.getName());
+    }
+}

dependency-injection/src/test/java/com/baeldung/resource/MethodByQualifierResourceTest.java

@@ -12,17 +12,21 @@ import org.junit.runner.RunWith;
 import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.support.AnnotationConfigContextLoader;
+
+import com.baeldung.configuration.ApplicationContextTestResourceQualifier;
 
 @RunWith(SpringJUnit4ClassRunner.class)
-@ContextConfiguration(locations={
-		"/applicationContextTest-@Resource-Qualifier.xml"})
-public class MethodByQualifierResourceDemo {
+@ContextConfiguration(
+    loader=AnnotationConfigContextLoader.class,
+    classes=ApplicationContextTestResourceQualifier.class)
+public class MethodByQualifierResourceTest {
 
 	private File arbDependency;
 	private File anotherArbDependency;
 
 	@Test
-	public void dependencies_MUST_BE_INJECTED_Correctly() {
+	public void givenResourceQualifier_WhenSetter_ThenValidDependencies(){
 		assertNotNull(arbDependency);
 		assertEquals("namedFile.txt", arbDependency.getName());
 		assertNotNull(anotherArbDependency);

dependency-injection/src/test/java/com/baeldung/resource/MethodByTypeResourceTest.java

@@ -1,5 +1,6 @@
 package com.baeldung.resource;
 
+import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
 
 import java.io.File;
@@ -10,11 +11,15 @@ import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.support.AnnotationConfigContextLoader;
+
+import com.baeldung.configuration.ApplicationContextTestResourceNameType;
 
 @RunWith(SpringJUnit4ClassRunner.class)
-@ContextConfiguration(locations={
-		"/applicationContextTest-@Resource-NameType.xml"})
-public class MethodByTypeResourceDemo {
+@ContextConfiguration(
+    loader=AnnotationConfigContextLoader.class,
+    classes=ApplicationContextTestResourceNameType.class)
+public class MethodByTypeResourceTest {
 
     private File defaultFile;
 
@@ -24,7 +29,8 @@ public class MethodByTypeResourceDemo {
     }
 
     @Test
-    public void defaultFile_MUST_BE_INJECTED_Correctly() {
+    public void givenResourceAnnotation_WhenSetter_ThenValidDependency(){
         assertNotNull(defaultFile);
+        assertEquals("namedFile.txt", defaultFile.getName());
     }
 }

dependency-injection/src/test/java/com/baeldung/resource/MethodResourceInjectionTest.java

@@ -1,4 +1,6 @@
 package com.baeldung.resource;
+
+import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
 
 import java.io.File;
@@ -9,11 +11,15 @@ import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.support.AnnotationConfigContextLoader;
+
+import com.baeldung.configuration.ApplicationContextTestResourceNameType;
 
 @RunWith(SpringJUnit4ClassRunner.class)
-@ContextConfiguration(locations={
-		"/applicationContextTest-@Resource-NameType.xml"})
-public class MethodResourceInjectionDemo {
+@ContextConfiguration(
+    loader=AnnotationConfigContextLoader.class,
+    classes=ApplicationContextTestResourceNameType.class)
+public class MethodResourceInjectionTest {
 
     private File defaultFile;
 
@@ -23,7 +29,8 @@ public class MethodResourceInjectionDemo {
     }
 
     @Test
-    public void defaultFile_MUST_BE_INJECTED_Correctly() {
+    public void givenResourceAnnotation_WhenSetter_ThenDependencyValid(){
         assertNotNull(defaultFile);
+        assertEquals("namedFile.txt", defaultFile.getName());
     }
 }

dependency-injection/src/test/java/com/baeldung/resource/NamedResourceTest.java

@@ -1,6 +1,6 @@
 package com.baeldung.resource;
+import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertTrue;
 
 import java.io.File;
 
@@ -10,18 +10,21 @@ import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.support.AnnotationConfigContextLoader;
+
+import com.baeldung.configuration.ApplicationContextTestResourceNameType;
 
 @RunWith(SpringJUnit4ClassRunner.class)
-@ContextConfiguration(locations={
-		"/applicationContextTest-@Resource-NameType.xml"})
+@ContextConfiguration(loader=AnnotationConfigContextLoader.class,
+                      classes=ApplicationContextTestResourceNameType.class)
 public class NamedResourceTest {
 
     @Resource(name="namedFile")
     private File testFile;
 
     @Test
-    public void namedResource_MUST_FIND_SPECIFIED_File() {
+    public void givenResourceAnnotation_WhenOnField_THEN_DEPENDENCY_Found() {
         assertNotNull(testFile);
-        assertTrue(testFile.getName().equals("namedFile.txt"));
+        assertEquals("namedFile.txt", testFile.getName());
     }
 }

dependency-injection/src/test/java/com/baeldung/resource/QualifierResourceInjectionDemo.java

@@ -1,35 +0,0 @@
-package com.baeldung.resource;
-import static org.junit.Assert.assertNotNull;
-
-import java.io.File;
-
-import javax.annotation.Resource;
-
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.springframework.beans.factory.annotation.Qualifier;
-import org.springframework.test.context.ContextConfiguration;
-import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
-
-@RunWith(SpringJUnit4ClassRunner.class)
-@ContextConfiguration(locations={
-		"/applicationContextTest-@Resource-Qualifier.xml"})
-public class QualifierResourceInjectionDemo {
-
-    @Resource
-    private File defaultFile;
-	
-    @Resource
-    @Qualifier("namedFile")
-    private File namedFile;
-
-    @Test
-    public void defaultFile_MUST_BE_Valid() {
-        assertNotNull(defaultFile);
-    }
-
-    @Test
-    public void namedFile_MUST_BE_Valid() {
-        assertNotNull(namedFile);
-    }
-}

dependency-injection/src/test/java/com/baeldung/resource/QualifierResourceInjectionTest.java

@@ -0,0 +1,43 @@
+package com.baeldung.resource;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+import java.io.File;
+
+import javax.annotation.Resource;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.support.AnnotationConfigContextLoader;
+
+import com.baeldung.configuration.ApplicationContextTestResourceQualifier;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(
+    loader=AnnotationConfigContextLoader.class,
+    classes=ApplicationContextTestResourceQualifier.class)
+public class QualifierResourceInjectionTest {
+
+    @Resource
+    @Qualifier("defaultFile")
+    private File dependency1;
+	
+    @Resource
+    @Qualifier("namedFile")
+    private File dependency2;
+
+    @Test
+    public void givenResourceAnnotation_WhenField_ThenDependency1Valid(){
+        assertNotNull(dependency1);
+        assertEquals("defaultFile.txt", dependency1.getName());
+    }
+
+    @Test
+    public void givenResourceQualifier_WhenField_ThenDependency2Valid(){
+        assertNotNull(dependency2);
+        assertEquals("namedFile.txt", dependency2.getName());
+    }
+}

dependency-injection/src/test/java/com/baeldung/resource/SetterResourceInjectionTest.java

@@ -1,4 +1,6 @@
 package com.baeldung.resource;
+
+import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
 
 import java.io.File;
@@ -9,11 +11,14 @@ import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.support.AnnotationConfigContextLoader;
+
+import com.baeldung.configuration.ApplicationContextTestResourceNameType;
 
 @RunWith(SpringJUnit4ClassRunner.class)
-@ContextConfiguration(locations={
-		"/applicationContextTest-@Resource-NameType.xml"})
-public class SetterResourceInjectionDemo {
+@ContextConfiguration(loader=AnnotationConfigContextLoader.class,
+                      classes=ApplicationContextTestResourceNameType.class)
+public class SetterResourceInjectionTest {
 
     private File defaultFile;
 
@@ -23,7 +28,8 @@ public class SetterResourceInjectionDemo {
     }
 
     @Test
-    public void setter_MUST_INJECT_Resource() {
+    public void givenResourceAnnotation_WhenOnSetter_THEN_MUST_INJECT_Dependency() {
         assertNotNull(defaultFile);
+        assertEquals("namedFile.txt", defaultFile.getName());
     }
 }