Better support for FactoryBeans in BeanOverrideBeanFactoryPostProcessor

This commit makes sure to account for FactoryBean names when registering
a bean override. In the case of ReplaceDefinition mode, if there is a
factory bean name, it is used to check singleton status and as the name
in the registrar.

Closes gh-32971

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

@@ -0,0 +1,95 @@
+/*
+ * Copyright 2002-2024 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.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+
+import org.springframework.beans.factory.FactoryBean;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.test.context.junit.jupiter.SpringExtension;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.BDDMockito.given;
+import static org.mockito.Mockito.mock;
+
+/**
+ * Test {@link MockitoBean @MockitoBean} for a factory bean.
+ *
+ * @author Phillip Webb
+ */
+@ExtendWith(SpringExtension.class)
+class MockitoBeanForBeanFactoryIntegrationTests {
+
+	// spring-boot/gh-7439
+
+	@MockitoBean
+	private TestFactoryBean testFactoryBean;
+
+	@Autowired
+	private ApplicationContext applicationContext;
+
+	@Test
+	@SuppressWarnings({ "unchecked", "rawtypes" })
+	void testName() {
+		TestBean testBean = mock(TestBean.class);
+		given(testBean.hello()).willReturn("amock");
+		given(this.testFactoryBean.getObjectType()).willReturn((Class) TestBean.class);
+		given(this.testFactoryBean.getObject()).willReturn(testBean);
+		TestBean bean = this.applicationContext.getBean(TestBean.class);
+		assertThat(bean.hello()).isEqualTo("amock");
+	}
+
+	@Configuration(proxyBeanMethods = false)
+	static class Config {
+
+		@Bean
+		TestFactoryBean testFactoryBean() {
+			return new TestFactoryBean();
+		}
+
+	}
+
+	static class TestFactoryBean implements FactoryBean<TestBean> {
+
+		@Override
+		public TestBean getObject() {
+			return () -> "normal";
+		}
+
+		@Override
+		public Class<?> getObjectType() {
+			return TestBean.class;
+		}
+
+		@Override
+		public boolean isSingleton() {
+			return false;
+		}
+
+	}
+
+	interface TestBean {
+
+		String hello();
+
+	}
+
+}