Merge branch '2.7.x'

Closes gh-33792

spring-boot-project/spring-boot-test/src/test/java/org/springframework/boot/test/mock/mockito/SpringBootMockResolverTests.java

@@ -0,0 +1,66 @@
+/*
+ * Copyright 2012-2020 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.boot.test.mock.mockito;
+
+import org.junit.jupiter.api.Test;
+
+import org.springframework.aop.SpringProxy;
+import org.springframework.aop.framework.ProxyFactory;
+import org.springframework.aop.target.HotSwappableTargetSource;
+import org.springframework.aop.target.SingletonTargetSource;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link SpringBootMockResolver}.
+ *
+ * @author Moritz Halbritter
+ */
+class SpringBootMockResolverTests {
+
+	@Test
+	void testStaticTarget() {
+		MyServiceImpl myService = new MyServiceImpl();
+		MyService proxy = ProxyFactory.getProxy(MyService.class, new SingletonTargetSource(myService));
+		Object target = new SpringBootMockResolver().resolve(proxy);
+		assertThat(target).isInstanceOf(MyServiceImpl.class);
+	}
+
+	@Test
+	void testNonStaticTarget() {
+		MyServiceImpl myService = new MyServiceImpl();
+		MyService proxy = ProxyFactory.getProxy(MyService.class, new HotSwappableTargetSource(myService));
+		Object target = new SpringBootMockResolver().resolve(proxy);
+		assertThat(target).isInstanceOf(SpringProxy.class);
+	}
+
+	private interface MyService {
+
+		int a();
+
+	}
+
+	private static class MyServiceImpl implements MyService {
+
+		@Override
+		public int a() {
+			return 1;
+		}
+
+	}
+
+}