Verify @⁠MockitoBean can replace Spring AOP advised beans

See gh-33742

spring-test/src/test/java/org/springframework/test/context/bean/override/mockito/MockitoBeanAndSpringAopProxyTests.java

@@ -0,0 +1,110 @@
+/*
+ * Copyright 2012-2024 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.test.context.bean.override.mockito;
+
+import org.junit.jupiter.api.RepeatedTest;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.Mockito;
+
+import org.springframework.aop.support.AopUtils;
+import org.springframework.cache.CacheManager;
+import org.springframework.cache.annotation.Cacheable;
+import org.springframework.cache.annotation.EnableCaching;
+import org.springframework.cache.concurrent.ConcurrentMapCacheManager;
+import org.springframework.cache.interceptor.CacheResolver;
+import org.springframework.cache.interceptor.SimpleCacheResolver;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+import org.springframework.test.context.junit.jupiter.SpringExtension;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.ArgumentMatchers.anyBoolean;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.BDDMockito.given;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+/**
+ * Tests for {@link MockitoBean @MockitoBean} used in combination Spring AOP.
+ *
+ * @author Sam Brannen
+ * @author Phillip Webb
+ * @since 6.2
+ * @see <a href="https://github.com/spring-projects/spring-boot/issues/5837">5837</a>
+ */
+@ExtendWith(SpringExtension.class)
+public class MockitoBeanAndSpringAopProxyTests {
+
+	@MockitoBean
+	DateService dateService;
+
+
+	/**
+	 * Since the {@code BeanOverrideBeanFactoryPostProcessor} always registers a
+	 * manual singleton for a {@code @MockitoBean} mock, the mock that ends up
+	 * in the application context should not be proxied by Spring AOP (since
+	 * BeanPostProcessors are never applied to manually registered singletons).
+	 *
+	 * <p>In other words, this test effectively verifies that the mock is a
+	 * standard Mockito mock which does <strong>not</strong> have
+	 * {@link Cacheable @Cacheable} applied to it.
+	 */
+	@RepeatedTest(2)
+	void mockShouldNotBeAnAopProxy() {
+		assertThat(AopUtils.isAopProxy(dateService)).as("is Spring AOP proxy").isFalse();
+		assertThat(Mockito.mockingDetails(dateService).isMock()).as("is Mockito mock").isTrue();
+
+		given(dateService.getDate(false)).willReturn(1L);
+		Long date1 = dateService.getDate(false);
+		assertThat(date1).isOne();
+
+		given(dateService.getDate(false)).willReturn(2L);
+		Long date2 = dateService.getDate(false);
+		assertThat(date2).isEqualTo(2L);
+
+		verify(dateService, times(2)).getDate(false);
+		verify(dateService, times(2)).getDate(eq(false));
+		verify(dateService, times(2)).getDate(anyBoolean());
+	}
+
+
+	@Configuration(proxyBeanMethods = false)
+	@EnableCaching(proxyTargetClass = true)
+	@Import(DateService.class)
+	static class Config {
+
+		@Bean
+		CacheResolver cacheResolver(CacheManager cacheManager) {
+			return new SimpleCacheResolver(cacheManager);
+		}
+
+		@Bean
+		ConcurrentMapCacheManager cacheManager() {
+			return new ConcurrentMapCacheManager("test");
+		}
+	}
+
+	static class DateService {
+
+		@Cacheable("test")
+		Long getDate(boolean argument) {
+			return System.nanoTime();
+		}
+	}
+
+}