Junit 5 - 没有为参数注册 ParameterResolver

Question

来源：JUnit 5、Eclipse 4.8、Selenium

我可以在没有任何特殊测试框架的情况下编写和执行 Selenium 脚本，但我想使用 Junit 5（因为我们依赖其他工具）并且我从未见过这样的错误“org.junit.jupiter.api.extension.ParameterResolutionException”而与 Junit 4 一起工作。目前它是 Junit 5，我用谷歌搜索它以获得某种想法，但无法解决问题。

测试脚本：

package login;
import static org.junit.jupiter.api.Assertions.assertEquals;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;



public  class loginTest  {

    public  WebDriver driver = null   ;


    public loginTest(WebDriver driver)
    {
        this.driver=driver;
    }


    @BeforeEach
    public void setUp() throws Exception 
    {

        driver.get("google.com");
        System.out.println("Page title is: " + driver.getTitle());
    }

    @Test
    public void test() {
            // some action here I have in original script
        System.out.println("Page title is: " + driver.getTitle());

    }

    @AfterEach
    public void tearDown() throws Exception 
    {
        driver.quit();
    }
}

堆栈跟踪：

org.junit.jupiter.api.extension.ParameterResolutionException: No ParameterResolver registered for parameter [org.openqa.selenium.WebDriver arg0] in executable [public login.loginTest(org.openqa.selenium.WebDriver)].
    at org.junit.jupiter.engine.execution.ExecutableInvoker.resolveParameter(ExecutableInvoker.java:191)
    at org.junit.jupiter.engine.execution.ExecutableInvoker.resolveParameters(ExecutableInvoker.java:174)
    at org.junit.jupiter.engine.execution.ExecutableInvoker.resolveParameters(ExecutableInvoker.java:135)
    at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:61)
    at org.junit.jupiter.engine.descriptor.ClassTestDescriptor.instantiateTestClass(ClassTestDescriptor.java:208)
    at org.junit.jupiter.engine.descriptor.ClassTestDescriptor.instantiateAndPostProcessTestInstance(ClassTestDescriptor.java:195)
    at org.junit.jupiter.engine.descriptor.ClassTestDescriptor.lambda$testInstanceProvider$0(ClassTestDescriptor.java:185)
    at org.junit.jupiter.engine.descriptor.ClassTestDescriptor.lambda$testInstanceProvider$1(ClassTestDescriptor.java:189)
    at java.util.Optional.orElseGet(Unknown Source)
    at org.junit.jupiter.engine.descriptor.ClassTestDescriptor.lambda$testInstanceProvider$2(ClassTestDescriptor.java:188)
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:81)
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:58)
    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.prepare(HierarchicalTestExecutor.java:89)
    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.execute(HierarchicalTestExecutor.java:74)
    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.lambda$executeRecursively$2(HierarchicalTestExecutor.java:120)
    at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(Unknown Source)
    at java.util.stream.ReferencePipeline$2$1.accept(Unknown Source)
    at java.util.Iterator.forEachRemaining(Unknown Source)
    at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Unknown Source)
    at java.util.stream.AbstractPipeline.copyInto(Unknown Source)
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source)
    at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(Unknown Source)
    at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(Unknown Source)
    at java.util.stream.AbstractPipeline.evaluate(Unknown Source)
    at java.util.stream.ReferencePipeline.forEach(Unknown Source)
    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.lambda$executeRecursively$3(HierarchicalTestExecutor.java:120)
    at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.executeRecursively(HierarchicalTestExecutor.java:108)
    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.execute(HierarchicalTestExecutor.java:79)
    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.lambda$executeRecursively$2(HierarchicalTestExecutor.java:120)
    at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(Unknown Source)
    at java.util.stream.ReferencePipeline$2$1.accept(Unknown Source)
    at java.util.Iterator.forEachRemaining(Unknown Source)
    at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Unknown Source)
    at java.util.stream.AbstractPipeline.copyInto(Unknown Source)
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source)
    at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(Unknown Source)
    at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(Unknown Source)
    at java.util.stream.AbstractPipeline.evaluate(Unknown Source)
    at java.util.stream.ReferencePipeline.forEach(Unknown Source)
    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.lambda$executeRecursively$3(HierarchicalTestExecutor.java:120)
    at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.executeRecursively(HierarchicalTestExecutor.java:108)
    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.execute(HierarchicalTestExecutor.java:79)
    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:55)
    at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:43)
    at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:170)
    at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:154)
    at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:90)
    at org.eclipse.jdt.internal.junit5.runner.JUnit5TestReference.run(JUnit5TestReference.java:86)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:538)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:760)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:460)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:206)

Answer 1

我有@Test和@ParameterizedTest注释相同的方法。我删除了前者。

Answer 2

我遇到了类似的问题，我通过删除@Test注释并引入注释来解决它@ParameterizedTest

Answer 3

当您尝试在同一个测试类中同时使用@Test和时，会出现此错误@ParameterizedTest。删除@Test注释将解决问题。

Answer 4

这可能不是上面问题的答案，但对我来说使用Spring-Boot和Lombok的 @RequiredArgsConstructor 来说，JUnit 无法自动装配依赖项。我的班级看起来像这样：

@ExtendWith(SpringExtension.class)
@ContextConfiguration(classes = { TestPersistenceConfiguration.class, MyRepositoryTest.TestConfiguration.class })
@RequiredArgsConstructor
class MyRepositoryTest {
    private final MyRepository repository;
    private final TransactionTemplate tt;

// test methods...

    @Configuration
    @EnableJpaRepositories(basePackageClasses = { MyRepository.class })
    static class TestConfiguration {}
}

警告（实验性 Lombok 功能！）

龙目岛 onX是实验性的，有不同的风格。

您可以添加onConstructor = @__(@Autowired)到RequiredArgsConstructor注释：

@ExtendWith(SpringExtension.class)
@ContextConfiguration(classes = { TestPersistenceConfiguration.class, MyRepositoryTest.TestConfiguration.class })
@RequiredArgsConstructor(onConstructor = @__(@Autowired))
class MyRepositoryTest {
// everything as before
}

没有龙目岛

恕我直言，拥有一个带有 @Autowired 的 IDE 生成构造函数会更好。最起码到现在。

@ExtendWith(SpringExtension.class)
@ContextConfiguration(classes = { TestPersistenceConfiguration.class, MyRepositoryTest.TestConfiguration.class })
class MyRepositoryTest {
    private final MyRepository repository;
    private final TransactionTemplate tt;

    @Autowired
    MyRepositoryTest(MyRepository repository, TransactionTemplate tt) {
        this.tt = tt;
        this.repository = repository;
    }
// everything else as before
}

Answer 5

正如 Marc Philipp 在他的评论中提到的，您需要确保 JUnit Jupiter 可以实例化您的测试类。

对于您的特定场景，您需要删除接受WebDriver.

那么你有两个选择：

1. WebDriver自行创建- 例如，在@BeforeAllor@BeforeEach方法中。
2. 使用Selenium Jupiter等扩展程序来帮助WebDriver您管理。

Answer 6

我也得到ParameterResolutionException了 JUnit 5。

org.junit.jupiter.api.extension.ParameterResolutionException: 
No ParameterResolver registered for parameter [int[] arg0] in constructor (public my_package.MyClass(int[]))

我在@Test我正在测试的类中编写了方法。

可以通过两种方式修复此错误：

1) 替换import org.junit.jupiter.api.Test为import org.junit.Test, 或

2) 在单独的 TestClass 中编写测试。

Answer 7

对我来说，我正在使用

@ParameterizedTest
@CsvSource({
        "1st-param1","1st-param2",
        "2nd-param1","2nd-param2"
        })
public void isCompleted(String param1, String param2) {

而不是（引用错误）：

@ParameterizedTest
@CsvSource({
        "1st-param1,1st-param2",
        "2nd-param1,2nd-param2"
        })
public void isCompleted(String param1, String param2) {

Answer 8

我收到此错误是因为我的测试需要先运行 Spring Boot 服务器，以便执行使用 @Autowired 的依赖注入。我添加了这些注释：

@Transactional
@ExtendWith(SpringExtension.class)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT, classes = Server.class)
public MyTestClass () {
...

}