如何调试错误: java.lang.AssertionError:在JSON路径"$.name“上没有值
如何调试错误: java.lang.AssertionError:在JSON路径"$.name“上没有值
提问于 2021-06-30 12:18:12
我正在编写一个应用程序，它的目的是帮助普通医生治疗老年人。我们的目标是避免多药，它是基于ATC (解剖治疗化学)分类。我编写了一种将活性物质添加到DB的方法，它可以工作(我在h2 db上检查过它)，但我无法编写适当的测试。
我怎么调查这个问题？
这是我的考试课：
package com.example.geriafarm.controllers;
import com.example.geriafarm.DTO.ATCdto;
import com.example.geriafarm.DTO.ActiveSubstDTO;
import com.example.geriafarm.entities.ATC;
import com.example.geriafarm.entities.ActiveSubst;
import com.example.geriafarm.repositories.ActiveSubstRepository;
import com.example.geriafarm.services.ATCService;
import com.example.geriafarm.services.ActiveSubstService;
import org.junit.jupiter.api.Test;
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.boot.test.mock.mockito.MockBean;
import org.springframework.http.MediaType;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.ResultMatcher;
import org.springframework.transaction.annotation.Transactional;
import java.util.UUID;
import static java.lang.String.format;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.when;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
import static org.hamcrest.Matchers.is;
@SpringBootTest
@AutoConfigureMockMvc
public class ActiveSubstControllerTest {
@Autowired
private MockMvc mockMvc;
@MockBean
private ActiveSubstService activeSubstService;
@Autowired
ActiveSubstRepository activeSubstRepository;
@Test
@Transactional
void shouldAddActiveSubstance() throws Exception {
final UUID id = new UUID(1234,567);
final String testName = "furosemid";
final String atcDTOTest = "C03CA01";
final ATC testATC = new ATC(null, "C","03","C","A","01");
final ActiveSubst activeSubstTest = new ActiveSubst(id,testName, testATC);
when(activeSubstService.addSubstance(any(ActiveSubstDTO.class))).thenReturn(activeSubstTest.getId());
mockMvc.perform(
post("/activesubstances")
.contentType(MediaType.APPLICATION_JSON)
.content(format("{\"name\":\"%s\",\"atc\":\"%s\"}", testName, atcDTOTest)))
.andDo(print())
.andExpect(status().isCreated())
.andExpect(jsonPath("$.name", is(testName)))
.andExpect(jsonPath("$.atc", is(atcDTOTest)));
}
}这是ActiveSubstanceService类：
package com.example.geriafarm.services.implementation;
import com.example.geriafarm.DTO.ATCdto;
import com.example.geriafarm.DTO.ActiveSubstDTO;
import com.example.geriafarm.entities.ATC;
import com.example.geriafarm.entities.ActiveSubst;
import com.example.geriafarm.repositories.ATCRepository;
import com.example.geriafarm.repositories.ActiveSubstRepository;
import com.example.geriafarm.services.ActiveSubstService;
import org.springframework.stereotype.Service;
import java.util.List;
import java.util.Optional;
import java.util.UUID;
@Service
public class DefaultActiveSubstService implements ActiveSubstService {
private final ActiveSubstRepository activeSubstRepository;
private final ATCRepository atcRepository;
public DefaultActiveSubstService(ActiveSubstRepository activeSubstRepository, ATCRepository atcRepository) {
this.activeSubstRepository = activeSubstRepository;
this.atcRepository = atcRepository;
}
@Override
public List<ActiveSubstDTO> getSubstances() {
return null;
}
public static ATC createATCEntity(ATCdto atcDto) { //metoda przepisuje dane z frontendu(ATCdto) do poszczególnych pól w bazie danych
ATC atcEntity = new ATC();
atcEntity.setAnatomicalGr(atcDto.getAtcDto().substring(0, 1));
atcEntity.setTherapeutSubgr(atcDto.getAtcDto().substring(1, 3));
atcEntity.setPharmacolSubgr(atcDto.getAtcDto().substring(3, 4));
atcEntity.setChemicalSubgr(atcDto.getAtcDto().substring(4, 5));
atcEntity.setChemicalSubst(atcDto.getAtcDto().substring(5));
return atcEntity;
}
@Override
public UUID addSubstance(ActiveSubstDTO activeSubstDTO) {
final ActiveSubst activeSubst = activeSubstRepository.saveAndFlush(new ActiveSubst(null, activeSubstDTO.getName(), createATCEntity(activeSubstDTO.getAtc())
)
);
return activeSubst.getId();
}
@Override
public Optional<ActiveSubstDTO> getSubstanceById(String id) {
return activeSubstRepository.findById(UUID.fromString(id)).map(ActiveSubstDTO::fromActiveSubstEnt);
}
@Override
public ActiveSubstDTO updateSubstance(String id, ActiveSubstDTO activeSubstDTO) {
return null;
}
@Override
public List<ActiveSubstDTO> getSubstancesByMedicine(UUID medicineId) {
return null;
}
@Override
public List<ActiveSubstDTO> getSubstancesByAnatomicalGroup(ATCdto atcDto) {
return null;
}
@Override
public List<ActiveSubstDTO> getSubstancesByTherapeuticSubgroup(ATCdto atcDto) {
return null;
}
}最后，控制器：
package com.example.geriafarm.controllers;
import com.example.geriafarm.DTO.ActiveSubstDTO;
import com.example.geriafarm.exceptions.GeriaException;
import com.example.geriafarm.services.ActiveSubstService;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.UUID;
@RestController
@RequestMapping("/activesubstances")
public class ActiveSubstController {
private final ActiveSubstService activeSubstService;
public ActiveSubstController(ActiveSubstService activeSubstService) {
this.activeSubstService = activeSubstService;
}
@PostMapping
public ResponseEntity<Void> addActiveSubst (@RequestBody ActiveSubstDTO activeSubstDTO) throws GeriaException, URISyntaxException {
UUID activeSubstId = activeSubstService.addSubstance(activeSubstDTO);
return ResponseEntity
.created(new URI("/activesubstances/" + activeSubstId))
.build();
}
}编辑:下面是我得到的一系列错误：
MockHttpServletRequest:
HTTP Method = POST
Request URI = /activesubstances
Parameters = {}
Headers = [Content-Type:"application/json;charset=UTF-8", Content-Length:"36"]
Body = {"name":"furosemid","atc":"C03CA01"}
Session Attrs = {}
Handler:
Type = com.example.geriafarm.controllers.ActiveSubstController
Method = com.example.geriafarm.controllers.ActiveSubstController#addActiveSubst(ActiveSubstDTO)
Async:
Async started = false
Async result = null
Resolved Exception:
Type = null
ModelAndView:
View name = null
View = null
Model = null
FlashMap:
Attributes = null
MockHttpServletResponse:
Status = 201
Error message = null
Headers = [Location:"/activesubstances/00000000-0000-04d2-0000-000000000237"]
Content type = null
Body =
Forwarded URL = null
Redirected URL = /activesubstances/00000000-0000-04d2-0000-000000000237
Cookies = []
MockHttpServletRequest:
HTTP Method = POST
Request URI = /activesubstances
Parameters = {}
Headers = [Content-Type:"application/json;charset=UTF-8", Content-Length:"36"]
Body = {"name":"furosemid","atc":"C03CA01"}
Session Attrs = {}
Handler:
Type = com.example.geriafarm.controllers.ActiveSubstController
Method = com.example.geriafarm.controllers.ActiveSubstController#addActiveSubst(ActiveSubstDTO)
Async:
Async started = false
Async result = null
Resolved Exception:
Type = null
ModelAndView:
View name = null
View = null
Model = null
FlashMap:
Attributes = null
MockHttpServletResponse:
Status = 201
Error message = null
Headers = [Location:"/activesubstances/00000000-0000-04d2-0000-000000000237"]
Content type = null
Body =
Forwarded URL = null
Redirected URL = /activesubstances/00000000-0000-04d2-0000-000000000237
Cookies = []
2021-06-30 17:45:11.429 INFO 20568 --- [ main] o.s.t.c.transaction.TransactionContext : Rolled back transaction for test: [DefaultTestContext@43aaf813 testClass = ActiveSubstControllerTest, testInstance = com.example.geriafarm.controllers.ActiveSubstControllerTest@7d28efd5, testMethod = shouldAddActiveSubstance@ActiveSubstControllerTest, testException = java.lang.AssertionError: No value at JSON path "$.name", mergedContextConfiguration = [WebMergedContextConfiguration@57ac5227 testClass = ActiveSubstControllerTest, locations = '{}', classes = '{class com.example.geriafarm.GeriafarmApplication}', contextInitializerClasses = '[]', activeProfiles = '{}', propertySourceLocations = '{}', propertySourceProperties = '{org.springframework.boot.test.context.SpringBootTestContextBootstrapper=true}', contextCustomizers = set[[ImportsContextCustomizer@4ba302e0 key = [org.springframework.boot.test.autoconfigure.web.servlet.MockMvcAutoConfiguration, org.springframework.boot.test.autoconfigure.web.servlet.MockMvcWebClientAutoConfiguration, org.springframework.boot.test.autoconfigure.web.servlet.MockMvcWebDriverAutoConfiguration, org.springframework.boot.autoconfigure.security.oauth2.client.servlet.OAuth2ClientAutoConfiguration, org.springframework.boot.autoconfigure.security.oauth2.resource.servlet.OAuth2ResourceServerAutoConfiguration, org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration, org.springframework.boot.autoconfigure.security.servlet.SecurityFilterAutoConfiguration, org.springframework.boot.autoconfigure.security.servlet.UserDetailsServiceAutoConfiguration, org.springframework.boot.test.autoconfigure.web.servlet.MockMvcSecurityConfiguration]], org.springframework.boot.test.context.filter.ExcludeFilterContextCustomizer@23202fce, org.springframework.boot.test.json.DuplicateJsonObjectContextCustomizerFactory$DuplicateJsonObjectContextCustomizer@6f1c29b7, org.springframework.boot.test.mock.mockito.MockitoContextCustomizer@763dd5d5, org.springframework.boot.test.web.client.TestRestTemplateContextCustomizer@2b72cb8a, org.springframework.boot.test.autoconfigure.actuate.metrics.MetricsExportContextCustomizerFactory$DisableMetricExportContextCustomizer@5d99c6b5, org.springframework.boot.test.autoconfigure.properties.PropertyMappingContextCustomizer@4b3fa0b3, org.springframework.boot.test.autoconfigure.web.servlet.WebDriverContextCustomizerFactory$Customizer@52e7a6b2, org.springframework.boot.test.context.SpringBootTestArgs@1, org.springframework.boot.test.context.SpringBootTestWebEnvironment@133e16fd], resourceBasePath = 'src/main/webapp', contextLoader = 'org.springframework.boot.test.context.SpringBootContextLoader', parent = [null]], attributes = map['org.springframework.test.context.web.ServletTestExecutionListener.activateListener' -> true, 'org.springframework.test.context.web.ServletTestExecutionListener.populatedRequestContextHolder' -> true, 'org.springframework.test.context.web.ServletTestExecutionListener.resetRequestContextHolder' -> true, 'org.springframework.test.context.event.ApplicationEventsTestExecutionListener.recordApplicationEvents' -> false]]
java.lang.AssertionError: No value at JSON path "$.name"
at org.springframework.test.util.JsonPathExpectationsHelper.evaluateJsonPath(JsonPathExpectationsHelper.java:304)
at org.springframework.test.util.JsonPathExpectationsHelper.assertValue(JsonPathExpectationsHelper.java:73)
at org.springframework.test.web.servlet.result.JsonPathResultMatchers.lambda$value$0(JsonPathResultMatchers.java:87)
at org.springframework.test.web.servlet.MockMvc$1.andExpect(MockMvc.java:196)
at com.example.geriafarm.controllers.ActiveSubstControllerTest.shouldAddActiveSubstance(ActiveSubstControllerTest.java:63)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:688)
at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)
at org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131)
at org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:149)
at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:140)
at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:84)
at org.junit.jupiter.engine.execution.ExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(ExecutableInvoker.java:115)
at org.junit.jupiter.engine.execution.ExecutableInvoker.lambda$invoke$0(ExecutableInvoker.java:105)
at org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106)
at org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64)
at org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45)
at org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37)
at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:104)
at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:98)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$6(TestMethodTestDescriptor.java:210)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:206)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:131)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:65)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:139)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:129)
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:127)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:126)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:84)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)
at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:143)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:129)
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:127)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:126)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:84)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)
at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:143)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:129)
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:127)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:126)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:84)
at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:32)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:51)
at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:108)
at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:88)
at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:54)
at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:67)
at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:52)
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:96)
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:75)
at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:71)
at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:221)
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54)
Caused by: java.lang.IllegalArgumentException: json can not be null or empty
at com.jayway.jsonpath.internal.Utils.notEmpty(Utils.java:386)
at com.jayway.jsonpath.JsonPath.read(JsonPath.java:342)
at com.jayway.jsonpath.JsonPath.read(JsonPath.java:329)
at org.springframework.test.util.JsonPathExpectationsHelper.evaluateJsonPath(JsonPathExpectationsHelper.java:301)
... 69 more我对Java和一般的编码都很陌生。
回答 3
Stack Overflow用户
回答已采纳
发布于 2021-06-30 14:03:20
你能把这堆错误放在你的问题上吗？
也许您的json从返回的请求体，没有一个财产与“名称”。
随着你的堆栈，你的身体从回报是空的。
MockHttpServletResponse:
Status = 201
Error message = null
Headers = [Location:"/activesubstances/00000000-0000-04d2-0000-000000000237"]
Content type = null
Body =
Forwarded URL = null
Redirected URL = /activesubstances/00000000-0000-04d2-0000-000000000237
Cookies = []您可以删除以下内容的测试：
mockMvc.perform(
post("/activesubstances")
.contentType(MediaType.APPLICATION_JSON)
.content(format("{\"name\":\"%s\",\"atc\":\"%s\"}", testName, atcDTOTest)))
.andDo(print())
.andExpect(status().isCreated())或者您可以将responseEntity从控制器中放入，以返回包含信息的DTO对象，并对其进行检查。
Stack Overflow用户
发布于 2021-06-30 14:08:09
在查看代码之后，您的POST方法不返回name和atc作为其一部分的JSON有效负载。
@PostMapping
public ResponseEntity<Void> addActiveSubst (@RequestBody ActiveSubstDTO activeSubstDTO) throws GeriaException, URISyntaxException {
UUID activeSubstId = activeSubstService.addSubstance(activeSubstDTO);
return ResponseEntity
.created(new URI("/activesubstances/" + activeSubstId))
.build(); // <-- you are returning an UUID only.
}在您的测试中，您断言您希望在.andExpect(jsonPath("$.name", is(testName)))响应中使用和.andExpect(jsonPath("$.atc", is(atcDTOTest)))，这与Controller不匹配。
你可以用这个试一试。最后，断言必须与Controller方法的输出相匹配。
mockMvc.perform(
post("/activesubstances")
.contentType(MediaType.APPLICATION_JSON)
.content(format("{\"name\":\"%s\",\"atc\":\"%s\"}", testName, atcDTOTest)))
.andDo(print())
.andExpect(status().isCreated());编辑：添加了关于这个答案的最后一个评论，并修改了以反映最后的建议。
Stack Overflow用户
发布于 2021-06-30 17:39:47
在控制器中，返回一个空体(ResponseEntity<Void>)，其中包含一个Location头：
return ResponseEntity
.created(new URI("/activesubstances/" + activeSubstId))
.build();在测试中，您需要一个包含name和atc字段的JSON：
.andExpect(jsonPath("$.name", is(testName)))
.andExpect(jsonPath("$.atc", is(atcDTOTest)));因此，测试是正确的失败。
你要解决的是：
如果您想返回一个空体，请从测试中删除前面提到的行。如果您想在响应体中返回JSON (我猜您期望它是ResponseEntity<ActiveSubstDTO>).？)，则必须返回适当的ResponseEntity<YourResponseType> (例如，Location )。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/68194612
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