support Guice binding annotations in SpringModule

src/test/java/org/springframework/guice/BindingAnnotationTests.java

@@ -0,0 +1,114 @@
+package org.springframework.guice;
+
+import static org.junit.Assert.assertNotNull;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+import javax.inject.Named;
+import javax.inject.Qualifier;
+
+import org.junit.Test;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.guice.BindingAnnotationTests.SomeDependencyWithBindingAnnotationOnProvider;
+import org.springframework.guice.BindingAnnotationTests.SomeDependencyWithGuiceNamedAnnotationOnProvider;
+import org.springframework.guice.BindingAnnotationTests.SomeDependencyWithNamedAnnotationOnProvider;
+import org.springframework.guice.BindingAnnotationTests.SomeDependencyWithQualifierOnProvider;
+import org.springframework.guice.BindingAnnotationTests.SomeDependencyWithQualifierOnProviderWhichImplementsSomeInterface;
+import org.springframework.guice.BindingAnnotationTests.SomeInterface;
+import org.springframework.guice.annotation.EnableGuiceModules;
+
+import com.google.inject.BindingAnnotation;
+import com.google.inject.Injector;
+import com.google.inject.Key;
+import com.google.inject.name.Names;
+
+public class BindingAnnotationTests {
+
+	@Test
+	public void verifyBindingAnnotationsAreRespected() {
+		AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(
+				BindingAnnotationTestsConfig.class);
+		Injector injector = context.getBean(Injector.class);
+		
+		//Check @Qualifier
+		SomeDependencyWithQualifierOnProvider someDependencyWithQualifierOnClass = injector.getInstance(Key.get(SomeDependencyWithQualifierOnProvider.class, SomeQualifierAnnotation.class));
+		assertNotNull(someDependencyWithQualifierOnClass);
+		
+		//Check @BindingAnnotaiton
+		SomeDependencyWithQualifierOnProvider someDependencyWithBindingAnnotationOnProvider = injector.getInstance(Key.get(SomeDependencyWithQualifierOnProvider.class, SomeQualifierAnnotation.class));
+		assertNotNull(someDependencyWithBindingAnnotationOnProvider);
+		
+		//Check javax @Named
+		SomeDependencyWithNamedAnnotationOnProvider someDependencyWithNamedAnnotationOnProvider = injector.getInstance(Key.get(SomeDependencyWithNamedAnnotationOnProvider.class, Names.named("javaxNamed")));
+		assertNotNull(someDependencyWithNamedAnnotationOnProvider);
+		
+		//Check Guice @Named
+		SomeDependencyWithGuiceNamedAnnotationOnProvider someDependencyWithGuiceNamedAnnotationOnProvider = injector.getInstance(Key.get(SomeDependencyWithGuiceNamedAnnotationOnProvider.class, Names.named("guiceNamed")));
+		assertNotNull(someDependencyWithGuiceNamedAnnotationOnProvider);
+		
+		//Check @Qualifier with Interface
+		SomeInterface someInterface = injector.getInstance(Key.get(SomeInterface.class, SomeQualifierAnnotation.class));
+		assertNotNull(someInterface);
+		
+		context.close();
+	}
+	
+
+	public static class SomeDependencyWithQualifierOnProvider {}
+	public static class SomeDependencyWithBindingAnnotationOnProvider {}
+	public static class SomeDependencyWithNamedAnnotationOnProvider {}
+	public static class SomeDependencyWithGuiceNamedAnnotationOnProvider {}
+	public static interface SomeInterface{}
+	public static class SomeDependencyWithQualifierOnProviderWhichImplementsSomeInterface implements SomeInterface {}
+}
+
+@Qualifier
+@Target({ElementType.TYPE, ElementType.METHOD})
+@Retention(RetentionPolicy.RUNTIME)
+@interface SomeQualifierAnnotation {}
+
+@BindingAnnotation
+@Target({ElementType.TYPE, ElementType.METHOD})
+@Retention(RetentionPolicy.RUNTIME)
+@interface SomeBindingAnnotation {}
+
+
+@EnableGuiceModules
+@Configuration
+class BindingAnnotationTestsConfig {
+	
+	@Bean
+	@SomeQualifierAnnotation
+	public SomeDependencyWithQualifierOnProvider someDependencyWithQualifierOnProvider() {
+		return new SomeDependencyWithQualifierOnProvider();
+	}
+	
+	@Bean
+	@SomeBindingAnnotation
+	public SomeDependencyWithBindingAnnotationOnProvider someDependencyWithBindingAnnotationOnProvider() {
+		return new SomeDependencyWithBindingAnnotationOnProvider();
+	}
+	
+	@Bean
+	@Named("javaxNamed")
+	public SomeDependencyWithNamedAnnotationOnProvider someDependencyWithNamedAnnotationOnProvider() {
+		return new SomeDependencyWithNamedAnnotationOnProvider();
+	}
+	
+	@Bean
+	@com.google.inject.name.Named("guiceNamed")
+	public SomeDependencyWithGuiceNamedAnnotationOnProvider someDependencyWithGuiceNamedAnnotationOnProvider() {
+		return new SomeDependencyWithGuiceNamedAnnotationOnProvider();
+	}
+	
+	@Bean
+	@SomeQualifierAnnotation
+	public SomeInterface someInterface() {
+		return new SomeDependencyWithQualifierOnProviderWhichImplementsSomeInterface();
+	}
+}