java - Spring Boot 模拟 CREATED POST 响应

Question

对于 spring-boot 来说是全新的。

我正在尝试为我的 POST 方法编写一个测试，该方法返回带有资源路径的 CREATED 响应。对于我认为非常简单的事情，我遇到了各种各样的问题。在下面的代码中是我当前的测试类，它似乎因

而崩溃

ClassNotFoundException

在我的方法的第一行。

@RunWith(SpringRunner.class)
@WebMvcTest(AResource.class)
public class AResourceTest {
    @Autowired
    private MockMvc mockMvc;

    @MockBean
    private AResource aResourceMock;

    @Test
    public void testPOST() throws Exception {
        Response.ResponseBuilder created = Response.created(UriBuilder.fromPath("/123").build());
        when(aResourceMock.create(123)).thenReturn(created.build());

        mockMvc.perform(MockMvcRequestBuilders
                .request(HttpMethod.POST, "/account")
                .content("{\t\"id\": \"123\"}"))
                .andExpect(MockMvcResultMatchers.status().isCreated());
    }
}

知道如何正确地 mock 我的回答吗？谢谢

编辑:堆栈跟踪如下

java.lang.RuntimeException: java.lang.ClassNotFoundException: com.sun.ws.rs.ext.RuntimeDelegateImpl

    at javax.ws.rs.ext.RuntimeDelegate.findDelegate(RuntimeDelegate.java:122)
    at javax.ws.rs.ext.RuntimeDelegate.getInstance(RuntimeDelegate.java:91)
    at javax.ws.rs.core.UriBuilder.newInstance(UriBuilder.java:69)
    at javax.ws.rs.core.UriBuilder.fromPath(UriBuilder.java:111)
    at com.powerman.RestController.AResourceTest.canPOST(AResourceTest.java:34)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.springframework.test.context.junit4.statements.RunBeforeTestExecutionCallbacks.evaluate(RunBeforeTestExecutionCallbacks.java:73)
    at org.springframework.test.context.junit4.statements.RunAfterTestExecutionCallbacks.evaluate(RunAfterTestExecutionCallbacks.java:83)
    at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)
    at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)
    at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:251)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
    at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
    at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190)
    at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
    at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
    at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:51)
    at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
    at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: java.lang.ClassNotFoundException: com.sun.ws.rs.ext.RuntimeDelegateImpl
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:264)
    at javax.ws.rs.ext.FactoryFinder.newInstance(FactoryFinder.java:62)
    at javax.ws.rs.ext.FactoryFinder.find(FactoryFinder.java:155)
    at javax.ws.rs.ext.RuntimeDelegate.findDelegate(RuntimeDelegate.java:105)
    ... 34 more

我将添加我的依赖项，以防它们有帮助:

<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <version>2.0.1.RELEASE</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>com.google.guava</groupId>
            <artifactId>guava</artifactId>
            <version>21.0</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.8.0</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.8.0</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.assertj</groupId>
            <artifactId>assertj-core</artifactId>
            <version>3.9.1</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>com.sun.jersey</groupId>
            <artifactId>jersey-core</artifactId>
            <version>1.17.1</version>
        </dependency>
    </dependencies>

Answer 1

我不确定您要做什么以及为什么要模拟Response。当您对资源运行测试时，通常您想要做的是运行集成测试。这需要使用客户端库向端点发出实际请求。 MockMvc 仅在您使用 Spring MVC 作为 REST 框架时才有效。但就您而言，您正在使用 Jersey(我假设，基于您帖子中的 jax-rs 标签。

就客户端库而言，您可以使用Jersey/JAX-RS Client API或者您可以使用 Spring Boot 的 TestRestTemplate，就像它们在 official Spring Boot/Jersey sample project 中所做的那样。要检查为 POST/Created 资源创建的 URI，您应该做的是检查响应中的 Location header 。这是当您执行 Response.created(URI) 时在服务器端设置的。例如，假设这是您的资源

@Path("customers")
public class CustomersResource {

    @POST
    @Consumes(MediaType.APPLICATION_JSON)
    public Response createCustomer(Customer customer, @Context UriInfo uriInfo) {
        int customerId = // create customer and get the resource id
        UriBuilder builder = uriInfo.getAbsolutePathBuilder();
        builder.path(Integer.toString(customerId));
        return Response.created(builder.build()).build();
    }
}

Jersey 会自动将 Location 设置为传递给 created() 的 URI 值

然后(如果您使用的是 Jersey 客户端)，那么您的测试可能类似于

@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
public class ExampleResourceTest {

    @LocalServerPort
    private int port;

    private Client client = ClientBuilder.newClient();


    @Test
    public void testCustomerLocationOnPost() {
        Customer customer = new Customer("Jane", "Doe");

        URI resourceUri = UriBuilder.fromUri("http://localhost")
                .port(port).path("api").path("customers").build();

        Response response = client.target(resourceUri).request().post(Entity.json(customer));

        // test that we get the correct status code
        assertThat(response.getStatus())
                .isEqualTo(Response.Status.CREATED.getStatusCode());

        // test that the location header is correct.
        assertThat(response.getHeaderString(HttpHeaders.LOCATION))
                .isEqualTo(UriBuilder.fromUri(resourceUri).path("123").build().toString());
    }
}

就依赖项而言，要将 Jersey 与 Spring Boot 一起使用，您需要使用 spring-boot-started-jersey 依赖项。还要摆脱您所拥有的 jersey-core 依赖项。有关完整示例，请参阅上面链接的项目。