more complex example for the issue

gh-7174/pom.xml

@@ -13,6 +13,11 @@
     <version>1.4.1.RELEASE</version>
   </parent>
 
+  <properties>
+    <java.version>1.8</java.version>
+    <spring.version>4.3.4.BUILD-SNAPSHOT</spring.version>
+  </properties>
+
   <dependencies>
     <dependency>
       <groupId>org.springframework.boot</groupId>
@@ -25,17 +30,22 @@
     </dependency>
   </dependencies>
 
-  <properties>
-    <java.version>1.8</java.version>
-  </properties>
 
-    <build>
-      <plugins>
-        <plugin>
-          <groupId>org.springframework.boot</groupId>
-          <artifactId>spring-boot-maven-plugin</artifactId>
-        </plugin>
-      </plugins>
-    </build>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-maven-plugin</artifactId>
+      </plugin>
+    </plugins>
+  </build>
+
+  <repositories>
+    <repository>
+      <id>spring-snapshot</id>
+      <name>Spring Portfolio Snapshot Repository</name>
+      <url>http://maven.springframework.org/snapshot</url>
+    </repository>
+  </repositories>
 
 </project>

gh-7174/src/main/java/example/FooBarService.java → gh-7174/src/main/java/example/BarService.java

@@ -3,11 +3,7 @@
 import org.springframework.stereotype.Service;
 
 @Service
-public class FooBarService {
-
-  public String foo() {
-    return "foo";
-  }
+public class BarService {
 
   public void bar() {
     // do some bar stuff

gh-7174/src/main/java/example/FooBarApplication.java

@@ -10,20 +10,21 @@
 @RestController
 public class FooBarApplication {
 
-  @Autowired FooBarService service;
+  @Autowired FooService fooService;
+  @Autowired BarService barService;
 
   public static void main(String[] args) {
     SpringApplication.run(FooBarApplication.class, args);
   }
 
   @GetMapping("/foo")
   public String foo() {
-    return service.foo();
+    return fooService.foo();
   }
 
   @GetMapping("/bar")
   public void bar() {
-    service.bar();
+    barService.bar();
   }
 
   @ExceptionHandler(RuntimeException.class)

gh-7174/src/main/java/example/FooService.java

@@ -0,0 +1,12 @@
+package example;
+
+import org.springframework.stereotype.Service;
+
+@Service
+public class FooService {
+
+  public String foo() {
+    return "foo";
+  }
+
+}

gh-7174/src/test/java/example/BarTest.java

@@ -5,22 +5,28 @@
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
 import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.context.annotation.Import;
 import org.springframework.test.context.junit4.SpringRunner;
 import org.springframework.test.web.servlet.MockMvc;
 import static org.mockito.Mockito.*;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
 
+/**
+ * In this test suite I want to test only BarService.
+ * I don't care about FooService - the default NOOP implementation from TestConfiguration is fine
+ */
 @RunWith(SpringRunner.class)
 @WebMvcTest
+@Import({TestConfiguration.class})
 public class BarTest {
 
-  @MockBean FooBarService service;
+  @MockBean BarService barService;
   @Autowired MockMvc mockMvc;
 
   @Test
   public void shouldReturnStatus500() throws Exception {
-    doThrow(new RuntimeException()).when(service).bar();
+    doThrow(new RuntimeException()).when(barService).bar();
 
     mockMvc.perform(get("/bar"))
             .andExpect(status().isInternalServerError());

gh-7174/src/test/java/example/FooTest.java

@@ -5,23 +5,29 @@
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
 import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.context.annotation.Import;
 import org.springframework.test.context.junit4.SpringRunner;
 import org.springframework.test.web.servlet.MockMvc;
 import static org.mockito.Mockito.*;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
 
+/**
+ * In this test suite I want to test only FooService.
+ * I don't care about BarService - the default NOOP implementation from TestConfiguration is fine
+ */
 @RunWith(SpringRunner.class)
 @WebMvcTest
+@Import({TestConfiguration.class})
 public class FooTest {
 
-  @MockBean FooBarService service;
+  @MockBean FooService fooService;
   @Autowired MockMvc mockMvc;
 
   @Test
   public void shouldReturnXYZ() throws Exception {
     final String expected = "xyz";
-    when(service.foo()).thenReturn(expected);
+    when(fooService.foo()).thenReturn(expected);
     mockMvc.perform(get("/foo"))
             .andExpect(content().string(expected));
   }

gh-7174/src/test/java/example/TestConfiguration.java

@@ -0,0 +1,23 @@
+package example;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import static org.mockito.Mockito.*;
+
+/**
+ * Here we create some default implementations for beans used in WebMvc context.
+ */
+@Configuration
+public class TestConfiguration {
+
+  @Bean
+  public FooService fooService() {
+    return mock(FooService.class);
+  }
+
+  @Bean
+  public BarService barService() {
+    return mock(BarService.class);
+  }
+
+}