Add test for dispatcher types behavior

See gh-16500

Author: mhalbritter

Diff for: spring-boot-project/spring-boot/src/test/java/org/springframework/boot/web/servlet/ServletContextInitializerBeansTests.java

@@ -16,6 +16,8 @@
 
 package org.springframework.boot.web.servlet;
 
+import java.util.EnumSet;
+
 import jakarta.servlet.DispatcherType;
 import jakarta.servlet.Filter;
 import jakarta.servlet.FilterChain;
@@ -24,6 +26,8 @@
 import jakarta.servlet.ServletRequest;
 import jakarta.servlet.ServletResponse;
 import jakarta.servlet.http.HttpServlet;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
 import jakarta.servlet.http.HttpSessionIdListener;
 import org.assertj.core.api.ThrowingConsumer;
 import org.junit.jupiter.api.Test;
@@ -34,6 +38,7 @@
 import org.springframework.context.annotation.Configuration;
 import org.springframework.core.Ordered;
 import org.springframework.core.annotation.Order;
+import org.springframework.web.filter.OncePerRequestFilter;
 
 import static org.assertj.core.api.Assertions.assertThat;
 
@@ -139,6 +144,17 @@ void shouldApplyFilterRegistrationAnnotation() {
 		});
 	}
 
+	@Test
+	@SuppressWarnings("unchecked")
+	void shouldApplyFilterRegistrationAnnotationWithDefaultDispatcherTypes() {
+		load(FilterConfigurationWithAnnotationAndDefaultDispatcherTypes.class);
+		ServletContextInitializerBeans initializerBeans = new ServletContextInitializerBeans(
+				this.context.getBeanFactory(), TestServletContextInitializer.class);
+		assertThatSingleRegistration(initializerBeans, FilterRegistrationBean.class,
+				(filterRegistrationBean) -> assertThat(filterRegistrationBean.determineDispatcherTypes())
+					.containsExactlyElementsOf(EnumSet.allOf(DispatcherType.class)));
+	}
+
 	@Test
 	void shouldApplyOrderFromBean() {
 		load(OrderedServletConfiguration.class);
@@ -287,6 +303,26 @@ TestFilter testFilter() {
 
 	}
 
+	@Configuration(proxyBeanMethods = false)
+	static class FilterConfigurationWithAnnotationAndDefaultDispatcherTypes {
+
+		@Bean
+		@FilterRegistration(name = "test")
+		TestOncePerRequestFilter testFilter() {
+			return new TestOncePerRequestFilter();
+		}
+
+		static class TestOncePerRequestFilter extends OncePerRequestFilter {
+
+			@Override
+			protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response,
+					FilterChain filterChain) {
+			}
+
+		}
+
+	}
+
 	@Configuration(proxyBeanMethods = false)
 	static class MultipleInterfacesConfiguration {