我在尝试模拟接口(interface) org.springframework.ui.Model 的对象时遇到了这个问题。我正在使用带有 Java 8 和 JUnit Jupiter 的 Mockito 3.5.15。我已经尝试在全局和方法内部同时使用 @Mock 和 Mockito.mock()，但无论如何都会出现错误。由于 initMocks() 已弃用，我正在使用 Mockito.openMocks()。我知道 testGetMenu() 的内容不会导致错误，因为即使方法主体为空，我也会得到它。被测试的类是一个 Spring MVC Controller 。
模拟时的堆栈跟踪:
java.lang.ExceptionInInitializerError
at org.mockito.internal.exceptions.stacktrace.ConditionalStackTraceFilter.<init>(ConditionalStackTraceFilter.java:17)
at org.mockito.exceptions.base.MockitoException.filterStackTrace(MockitoException.java:41)
at org.mockito.exceptions.base.MockitoException.<init>(MockitoException.java:30)
at org.mockito.exceptions.misusing.MockitoConfigurationException.<init>(MockitoConfigurationException.java:18)
at org.mockito.internal.configuration.plugins.PluginLoader.loadImpl(PluginLoader.java:66)
at org.mockito.internal.configuration.plugins.PluginLoader.loadPlugin(PluginLoader.java:24)
at org.mockito.internal.configuration.plugins.PluginRegistry.<init>(PluginRegistry.java:12)
at org.mockito.internal.configuration.plugins.Plugins.<clinit>(Plugins.java:11)
at org.mockito.internal.util.MockUtil.<clinit>(MockUtil.java:24)
at org.mockito.internal.stubbing.defaultanswers.ReturnsEmptyValues.<init>(ReturnsEmptyValues.java:58)
at org.mockito.internal.stubbing.defaultanswers.ReturnsMoreEmptyValues.<init>(ReturnsMoreEmptyValues.java:51)
at org.mockito.internal.stubbing.defaultanswers.ReturnsSmartNulls.<init>(ReturnsSmartNulls.java:40)
at org.mockito.Answers.<clinit>(Answers.java:43)
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:498)
at java.lang.Class.getEnumConstantsShared(Class.java:3320)
at java.lang.Class.enumConstantDirectory(Class.java:3341)
at java.lang.Enum.valueOf(Enum.java:232)
at sun.reflect.annotation.AnnotationParser.parseEnumValue(AnnotationParser.java:483)
at sun.reflect.annotation.AnnotationParser.parseMemberValue(AnnotationParser.java:347)
at java.lang.reflect.Method.getDefaultValue(Method.java:606)
at sun.reflect.annotation.AnnotationType.<init>(AnnotationType.java:132)
at sun.reflect.annotation.AnnotationType.getInstance(AnnotationType.java:85)
at sun.reflect.annotation.AnnotationParser.parseAnnotation2(AnnotationParser.java:266)
at sun.reflect.annotation.AnnotationParser.parseAnnotations2(AnnotationParser.java:120)
at sun.reflect.annotation.AnnotationParser.parseAnnotations(AnnotationParser.java:72)
at java.lang.reflect.Field.declaredAnnotations(Field.java:1150)
at java.lang.reflect.Field.declaredAnnotations(Field.java:1148)
at java.lang.reflect.Field.getAnnotation(Field.java:1120)
at java.lang.reflect.AccessibleObject.getDeclaredAnnotation(AccessibleObject.java:219)
at org.junit.platform.commons.util.AnnotationUtils.findAnnotation(AnnotationUtils.java:128)
at org.junit.platform.commons.util.AnnotationUtils.findAnnotation(AnnotationUtils.java:115)
at org.junit.platform.commons.util.AnnotationUtils.isAnnotated(AnnotationUtils.java:93)
at org.junit.platform.commons.util.AnnotationUtils.lambda$findAnnotatedFields$6(AnnotationUtils.java:369)
at java.util.function.Predicate.lambda$and$0(Predicate.java:69)
at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:174)
at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1382)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472)
at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
at org.junit.platform.commons.util.ReflectionUtils.findFields(ReflectionUtils.java:1137)
at org.junit.platform.commons.util.AnnotationUtils.findAnnotatedFields(AnnotationUtils.java:371)
at org.junit.platform.commons.util.AnnotationUtils.findAnnotatedFields(AnnotationUtils.java:348)
at org.junit.jupiter.engine.descriptor.ExtensionUtils.registerExtensionsFromFields(ExtensionUtils.java:99)
at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.prepare(ClassBasedTestDescriptor.java:148)
at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.prepare(ClassBasedTestDescriptor.java:78)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$prepare$1(NodeTestTask.java:107)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.prepare(NodeTestTask.java:107)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:75)
at java.util.ArrayList.forEach(ArrayList.java:1257)
at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:139)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:125)
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:135)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:123)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:122)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:80)
at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:32)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:51)
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:248)
at org.junit.platform.launcher.core.DefaultLauncher.lambda$execute$5(DefaultLauncher.java:211)
at org.junit.platform.launcher.core.DefaultLauncher.withInterceptedStreams(DefaultLauncher.java:226)
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:199)
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:141)
at org.eclipse.jdt.internal.junit5.runner.JUnit5TestReference.run(JUnit5TestReference.java:98)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:41)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:542)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:770)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:464)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:210)
Caused by: java.lang.NullPointerException
at org.mockito.internal.configuration.plugins.Plugins.getStackTraceCleanerProvider(Plugins.java:17)
at org.mockito.internal.exceptions.stacktrace.StackTraceFilter.<clinit>(StackTraceFilter.java:21)
... 78 more
AppControllerTest.java
import static org.junit.Assert.assertEquals;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.junit.runner.RunWith;
import org.mockito.InjectMocks;
import org.mockito.MockedStatic;
import org.mockito.Mockito;
import org.mockito.MockitoAnnotations;
import org.mockito.junit.MockitoJUnitRunner;
import org.mockito.junit.jupiter.MockitoExtension;
import org.springframework.ui.Model;
import com.javaduckspizza.OnlineOrderingApplication.common.TypesCache;
import com.javaduckspizza.OnlineOrderingApplication.main.AppController;
@ExtendWith(MockitoExtension.class)
@RunWith(MockitoJUnitRunner.class)
class AppControllerTest {
@InjectMocks
AppController appController = new AppController();
@Mock
Model model;
@BeforeEach
void setUp() throws Exception {
// model = Mockito.mock(Model.class);
MockitoAnnotations.openMocks(this); //using because initMocks() is deprecated
}
@AfterEach
void tearDown() throws Exception {
}
@Test
void testGetMenu() {
String result = appController.getMenu(model);
assertEquals(result, "/menu.");
verify(model, times(5)).addAttribute(Mockito.anyString(), Mockito.any());
verify(model, times(1)).addAttribute(Mockito.anyString(), Mockito.anyInt());
MockedStatic<TypesCache> mockedTypesCache = Mockito.mockStatic(TypesCache.class);
mockedTypesCache.verify(Mockito.times(5), () -> TypesCache.getActiveTypesByCategory(Mockito.anyString()));
}
}
AppController.java
import java.math.BigDecimal;
import java.util.Date;
import java.sql.Timestamp;
import java.util.Calendar;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.javaduckspizza.OnlineOrderingApplication.common.TypesCache;
import com.javaduckspizza.service.dao.ModifierServiceDao;
import com.javaduckspizza.service.dao.OrderServiceDao;
import com.javaduckspizza.vo.ModifierVo;
import com.javaduckspizza.vo.OrdersVo;
import com.javaduckspizza.vo.PizzaToppingAssociationVo;
import com.javaduckspizza.vo.PizzaVo;
@Controller
@RequestMapping("/")
public class AppController {
protected Map<PizzaVo, List<PizzaToppingAssociationVo>> mapShoppingCart =
new HashMap<PizzaVo, List<PizzaToppingAssociationVo>>();
@GET
@RequestMapping("/menu")
public String getMenu(Model model) {
System.err.println("In AppController.getMenu()");
addAttributesForMenu(model);
model.addAttribute("itemCount", mapShoppingCart.size());
return "/menu."; //I probably messed up something in the configuration. If written without / and ., it tries to get WEB-INF/jspmenujsp
}
public void addAttributesForMenu(Model model) {
model.addAttribute("sizes", TypesCache.getActiveTypesByCategory("SIZE"));
model.addAttribute("crusts", TypesCache.getActiveTypesByCategory("CRST"));
model.addAttribute("cheeses", TypesCache.getActiveTypesByCategory("CHES"));
model.addAttribute("sauces", TypesCache.getActiveTypesByCategory("SAUC"));
model.addAttribute("toppings", TypesCache.getActiveTypesByCategory("TOPP"));
}
}
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.3.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.javaduckspizza</groupId>
<artifactId>OnlineOrderingApplication</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>OnlineOrderingApplication</name>
<description>Online ordering application for Java Ducks Pizza</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-core</artifactId>
<version>3.5.15</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-inline</artifactId>
<version>3.5.15</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-junit-jupiter</artifactId>
<version>3.5.15</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.13</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>jakarta.ws.rs</groupId>
<artifactId>jakarta.ws.rs-api</artifactId>
<version>2.1.6</version>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>5.7.0</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>5.7.0</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.2</version>
</plugin>
</plugins>
</build>
</project>
Stacktrace 如果我不模拟
java.lang.NoSuchMethodError: org.mockito.Mockito.mockitoSession()Lorg/mockito/session/MockitoSessionBuilder;
at org.mockito.junit.jupiter.MockitoExtension.beforeEach(MockitoExtension.java:149)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeBeforeEachCallbacks$1(TestMethodTestDescriptor.java:154)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeBeforeMethodsOrCallbacksUntilExceptionOccurs$5(TestMethodTestDescriptor.java:190)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeBeforeMethodsOrCallbacksUntilExceptionOccurs(TestMethodTestDescriptor.java:190)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeBeforeEachCallbacks(TestMethodTestDescriptor.java:153)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:131)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:71)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:135)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:125)
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:135)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:123)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:122)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:80)
at java.util.ArrayList.forEach(ArrayList.java:1257)
at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:139)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:125)
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:135)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:123)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:122)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:80)
at java.util.ArrayList.forEach(ArrayList.java:1257)
at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:139)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:125)
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:135)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:123)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:122)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:80)
at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:32)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:51)
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:248)
at org.junit.platform.launcher.core.DefaultLauncher.lambda$execute$5(DefaultLauncher.java:211)
at org.junit.platform.launcher.core.DefaultLauncher.withInterceptedStreams(DefaultLauncher.java:226)
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:199)
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:141)
at org.eclipse.jdt.internal.junit5.runner.JUnit5TestReference.run(JUnit5TestReference.java:98)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:41)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:542)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:770)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:464)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:210)
Suppressed: java.lang.NullPointerException
at org.mockito.junit.jupiter.MockitoExtension.afterEach(MockitoExtension.java:184)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeAfterEachCallbacks$11(TestMethodTestDescriptor.java:248)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeAllAfterMethodsOrCallbacks$13(TestMethodTestDescriptor.java:268)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeAllAfterMethodsOrCallbacks$14(TestMethodTestDescriptor.java:268)
at java.util.ArrayList.forEach(ArrayList.java:1257)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeAllAfterMethodsOrCallbacks(TestMethodTestDescriptor.java:267)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeAfterEachCallbacks(TestMethodTestDescriptor.java:247)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:143)
... 43 more
最佳答案
您要测试的用例不是 @InjectMocks 与 @Mock 的组合。只要您想模拟被测类的合作者，就可以使用此设置。
假设您的 AppController 将注入(inject)(例如通过构造函数)一个 UserService 来获取数据。对于这种情况，您可以对 UserService 使用 @Mock，并在整个 AppController 单元测试期间模拟此服务的行为。
Model 不是您的 AppController 的协作者，而是由 Spring 注入(inject)到您的方法中。
在您的测试场景中，模拟 Model 没有多大意义。而是使用 @WebMvcTest 启动切片的 Spring 上下文，然后使用 MockMvc 访问您的端点。然后可以使用MockMvc的验证方法来检查Model、 View 名称、响应码。
这方面的示例可能如下所示:
@WebMvcTest(DashboardController.class)
class DashboardControllerTest {
@Autowired
private MockMvc mockMvc;
@MockBean
private DashboardService dashboardService;
@Test
public void shouldReturnViewWithPrefilledData() throws Exception {
when(dashboardService.getAnalyticsGraphData()).thenReturn(new Integer[]{13, 42});
this.mockMvc
.perform(get("/dashboard"))
.andExpect(status().isOk())
.andExpect(view().name("dashboard"))
.andExpect(model().attribute("user", "Duke"))
.andExpect(model().attribute("analyticsGraph", Matchers.arrayContaining(13, 42)))
.andExpect(model().attributeExists("quickNote"));
}
}
您可以在此 MockMvc guide 中找到更多信息.
PS: @RunWith(MockitoRunner.class) 适用于 JUnit 4，如果你使用 JUnit Jupiter，你可以删除它。
关于尝试模拟时出现 java.lang.ExceptionInInitializerError，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/64580745/