在对休息控制器执行测试时在 spock 测试用例中出错

Question

我正在为我的控制器在 Spring Boot 中编写一个测试用例，下面是我的控制器

@RestController
public class HelloController {

    @RequestMapping("/hello")
    public String helloWorld(){
        return "hello world";
    }
}

现在我为同样的内容编写 Spock 测试用例，如下所示

package groovy

import org.springframework.beans.factory.annotation.Autowired
import org.springframework.boot.test.context.SpringBootTest
import spock.lang.Narrative
import spock.lang.Specification
import spock.lang.Title

@Title("Application Specification")
@Narrative("Specification which beans are expected")
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
class HelloControllerTest extends Specification {
    @Autowired
    private HelloController helloController

    def "when get is performed then the response has status 200 and content is 'hello world'"() {
        expect: "Status is 200 and the response is 'hello world'"
        mvc.perform(get("/hello"))
                .andExpect(status().isOk())
                .andReturn()
                .response
    }
}

但作为回应，我收到以下异常，请告知如何克服同样的问题 条件失败并出现异常：

mvc.perform(get("/hello")) .andExpect(status().isOk()) .andReturn() .response
|           |
null        groovy.lang.MissingMethodException: No signature of method: groovy.HelloControllerTest.get() is applicable for argument types: (java.lang.String) values: [/hello]
            Possible solutions: getAt(java.lang.String), grep(), grep(java.lang.Object), wait(), Spy(), any()
                at groovy.HelloControllerTest.when get is performed then the response has status 200 and content is 'hello world'(HelloControllerTest.groovy:26)


    at groovy.HelloControllerTest.when get is performed then the response has status 200 and content is 'hello world'(HelloControllerTest.groovy:27)
Caused by: groovy.lang.MissingMethodException: No signature of method: groovy.HelloControllerTest.get() is applicable for argument types: (java.lang.String) values: [/hello]
Possible solutions: getAt(java.lang.String), grep(), grep(java.lang.Object), wait(), Spy(), any()
    at groovy.HelloControllerTest.when get is performed then the response has status 200 and content is 'hello world'(HelloControllerTest.groovy:26)

Answer 1

我根本不是 Spring 用户，但我确实认为您的问题更像是 Spring MVC 测试问题，而不是 Spock 问题。阅读一些tutorial 怎么样？在那里你会发现你应该

• 自动连接MockMvc 实例，类似于您自己的示例代码中的控制器，
• 将@AutoConfigureMockMvc 添加到您的测试类。

我想你可以通过阅读非常清晰的 Spock 错误消息来解决这个问题。正如我之前在评论中所说，它明确指出mvc 是null。出于某种原因，您似乎希望成员变量在没有任何配置或接线的情况下神奇地存在。

以下是链接教程中的一些示例代码：

package hello;

import static org.hamcrest.Matchers.containsString;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.web.servlet.MockMvc;

@RunWith(SpringRunner.class)
@SpringBootTest
@AutoConfigureMockMvc
public class ApplicationTest {

    @Autowired
    private MockMvc mockMvc;

    @Test
    public void shouldReturnDefaultMessage() throws Exception {
        this.mockMvc.perform(get("/")).andDo(print()).andExpect(status().isOk())
                .andExpect(content().string(containsString("Hello World")));
    }
}

在Spock documentation 中也可以找到 Spock 示例。