<!--<bean class="com.springapp.service.SampleService" scope="singleton"/>-->

    <bean class="org.mockito.Mockito" factory-method="mock">
        <constructor-arg index="0" value="com.springapp.service.SampleService"/>
    </bean>

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [com.springapp.service.SampleService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:949)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:818)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:730)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:486)
	... 58 more

package com.springapp.mvc;

import com.springapp.service.SampleService;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.web.WebAppConfiguration;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.web.context.WebApplicationContext;

import static org.mockito.Mockito.when;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.forwardedUrl;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.view;
import static org.springframework.test.web.servlet.setup.MockMvcBuilders.webAppContextSetup;

@RunWith(SpringJUnit4ClassRunner.class)
@WebAppConfiguration
@ContextConfiguration({"file:src/main/webapp/WEB-INF/mvc-dispatcher-servlet.xml", "file:src/main/webapp/WEB-INF/context.xml"})
public class AppTests {
    private MockMvc mockMvc;

    @SuppressWarnings("SpringJavaAutowiringInspection")
    @Autowired
    protected WebApplicationContext wac;

    @Autowired
    private SampleService service;
    
    @Before
    public void setup() {
        this.mockMvc = webAppContextSetup(this.wac).build();
    }

    @Test
    public void simple() throws Exception {
        when(service.service()).thenReturn("mock");
        
        mockMvc.perform(get("/"))
                .andExpect(status().isOk())
                .andExpect(view().name("mock"))
                .andReturn();
    }
}