Question

我尝试在Cucumber测试中使用MockMvc，但没有解决Spring依赖关系。

我创建了这个课程：

@RunWith(Cucumber.class)
@CucumberOptions(format = "pretty", features = "src/test/resources/features"})
@SpringBootTest
public class CucumberTest {

}

运行黄瓜功能

这个课程的步骤：

@WebMvcTest(VersionController.class)
@AutoConfigureWebMvc
public class VersionControllerSteps {

    @Autowired
    private MockMvc mvc;

    private MvcResult result;

    @When("^the client calls /version$")
    public void the_client_issues_GET_version() throws Throwable {
        result = mvc.perform(get("/version")).andDo(print()).andReturn();
    }

    @Then("^the client receives status code of (\\d+)$")
    public void the_client_receives_status_code_of(int statusCode) throws Throwable {
        assertThat(result.getResponse().getStatus()).isEqualTo(statusCode);
    }

    @And("^the client receives server version (.+)$")
    public void the_client_receives_server_version_body(String version) throws Throwable {
        assertThat(result.getResponse().getContentAsString()).isEqualTo(version);
    }
}

但是抛出异常：

java.lang.NullPointerException
at com.example.rest.VersionControllerSteps.the_client_issues_GET_version(VersionControllerSteps.java:30)
at ✽.When the client calls /version(version.feature:8)

这是.feature：

Feature: the version can be retrieved

  As a api user
  I want to know which api version is exposed
  In order to be a good api user

  Scenario: client makes call to GET /version
    When the client calls /version
    Then the client receives status code of 200
    And the client receives server version 1.0

如何配置我的测试以使用黄瓜和弹簧启动？

提前致谢。

Answer 1

添加@ContextConfiguration（classes = .class）如下所示

@RunWith(Cucumber.class)
@CucumberOptions(format = "pretty", features = "src/test/resources/features"})
@SpringBootTest
@ContextConfiguration(classes = <SpringBootApplication>.class)
public class CucumberTest {

}

这会奏效。我遇到了同样的问题，并通过这个解决方案得到了解决。

Answer 2

从您的代码清单和错误日志中，不清楚黄瓜+弹簧设置是否存在问题或仅是应用程序错误。

堆栈跟踪指向第30行，这是抛出空指针异常。从您的代码列表看，它可能是由于result.getResponse().getContentAsString()说明。

如果您的控制器实际上正在返回身体，则可能值得检查。例如，您可能需要使用@ResponseBody注释

标记返回的值

   @RequestMapping(
     value = "/campaigns/new",
     method = RequestMethod.GET,
    )
    public @ResponseBody String vers() {
        return "1.0.1";
    }

@RunWith（Cucumber.class）和@Autowired MockMvc

2 个答案: