From aaa0a2be630694ae83c2ffcbfeceb354e851ffb7 Mon Sep 17 00:00:00 2001
From: Sam Brannen <sam@sambrannen.com>
Date: Wed, 23 Aug 2023 16:00:41 +0200
Subject: [PATCH] Test status quo for @Components with multiple declared names

---
 .../AnnotationBeanNameGeneratorTests.java     | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/spring-context/src/test/java/org/springframework/context/annotation/AnnotationBeanNameGeneratorTests.java b/spring-context/src/test/java/org/springframework/context/annotation/AnnotationBeanNameGeneratorTests.java
index 1d127d2102e..ae5a58a286e 100644
--- a/spring-context/src/test/java/org/springframework/context/annotation/AnnotationBeanNameGeneratorTests.java
+++ b/spring-context/src/test/java/org/springframework/context/annotation/AnnotationBeanNameGeneratorTests.java
@@ -36,6 +36,7 @@ import org.springframework.stereotype.Controller;
 import org.springframework.stereotype.Service;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
 
 /**
  * Unit tests for {@link AnnotationBeanNameGenerator}.
@@ -70,6 +71,20 @@ class AnnotationBeanNameGeneratorTests {
 		assertGeneratedNameIsDefault(ComponentWithBlankName.class);
 	}
 
+	@Test
+	void generateBeanNameForComponentWithDuplicateIdenticalNames() {
+		assertGeneratedName(ComponentWithDuplicateIdenticalNames.class, "myComponent");
+	}
+
+	@Test
+	void generateBeanNameForComponentWithConflictingNames() {
+		BeanDefinition bd = annotatedBeanDef(ComponentWithMultipleConflictingNames.class);
+		assertThatIllegalStateException()
+				.isThrownBy(() -> generateBeanName(bd))
+				.withMessage("Stereotype annotations suggest inconsistent component names: '%s' versus '%s'",
+						"myComponent", "myService");
+	}
+
 	@Test
 	void generateBeanNameWithJakartaNamedComponent() {
 		assertGeneratedName(JakartaNamedComponent.class, "myJakartaNamedComponent");
@@ -144,6 +159,16 @@ class AnnotationBeanNameGeneratorTests {
 	private static class ComponentWithBlankName {
 	}
 
+	@Component("myComponent")
+	@Service("myComponent")
+	static class ComponentWithDuplicateIdenticalNames {
+	}
+
+	@Component("myComponent")
+	@Service("myService")
+	static class ComponentWithMultipleConflictingNames {
+	}
+
 	@Component
 	private static class AnonymousComponent {
 	}