Java Junit 5 - 没有为参数注册 ParameterResolver

Junit 5 - No ParameterResolver registered for parameter

提问by Mike ASP

Source : JUnit 5, Eclipse 4.8 , Selenium

来源：JUnit 5、Eclipse 4.8、Selenium

I can write up and execute Selenium script without any special test framework but I wanted to use Junit 5 (because we have dependency with other tools) and I have never seen such error "org.junit.jupiter.api.extension.ParameterResolutionException" while working with Junit 4. Currently it's Junit 5 and I googled it to get some sort of idea but can not resolve the issue.

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”而使用 Junit 4。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。

Test Script :

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();
    }
}

Stack trace:

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$testInstanceProvider
org.junit.jupiter.api.extension.ParameterResolutionException: 
No ParameterResolver registered for parameter [int[] arg0] in constructor (public my_package.MyClass(int[]))
(ClassTestDescriptor.java:185)
    at org.junit.jupiter.engine.descriptor.ClassTestDescriptor.lambda$testInstanceProvider(ClassTestDescriptor.java:189)
    at java.util.Optional.orElseGet(Unknown Source)
    at org.junit.jupiter.engine.descriptor.ClassTestDescriptor.lambda$testInstanceProvider(ClassTestDescriptor.java:188)
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:81)
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:58)
    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$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$executeRecursively(HierarchicalTestExecutor.java:120)
    at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(Unknown Source)
    at java.util.stream.ReferencePipeline.accept(Unknown Source)
    at java.util.Iterator.forEachRemaining(Unknown Source)
    at java.util.Spliterators$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$executeRecursively(HierarchicalTestExecutor.java:120)
    at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$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$executeRecursively(HierarchicalTestExecutor.java:120)
    at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(Unknown Source)
    at java.util.stream.ReferencePipeline.accept(Unknown Source)
    at java.util.Iterator.forEachRemaining(Unknown Source)
    at java.util.Spliterators$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$executeRecursively(HierarchicalTestExecutor.java:120)
    at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$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)

采纳答案by Sam Brannen

As Marc Philipp mentioned in his comment, you need to ensure that JUnit Jupiter can instantiate your test class.

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。

For your particular scenario, you'll need to remove your custom constructor that accepts a WebDriver.

对于您的特定场景，您需要删除接受WebDriver.

Then you have two options:

那么你有两个选择：

1. Create the WebDriveron your own -- for example, in an @BeforeAllor @BeforeEachmethod.
2. Use an extension such as Selenium Jupiterto help manage the WebDriverfor you.

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。

回答by Matilda Smeds

I also got ParameterResolutionExceptionwith JUnit 5.

我也得到ParameterResolutionException了 JUnit 5。

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

}

---

---

I had written @Testmethods inside the class I was testing.

我在@Test我正在测试的类中编写了方法。

This error could be fixed in two ways:

可以通过两种方式修复此错误：

1) Either replacing import org.junit.jupiter.api.Testwith import org.junit.Test, or

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

2) Writing tests in a separate TestClass.

2) 在单独的 TestClass 中编写测试。

回答by Will

I had both @Testand @ParameterizedTestannotating the same method. I removed the former.

我有两个@Test和@ParameterizedTest注释相同的方法。我删除了前者。

回答by muhin

This error appears when you try to use both @Testand @ParameterizedTestin the same test class. Removing @Testannotation will resolve the issue.

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。

回答by Janac Meena

I got this error because my test needed my Spring Boot server to be running first, so that dependency injection using @Autowired would get executed. I added these annotations:

我收到此错误是因为我的测试需要首先运行我的 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：

##代码##

回答by Krzysiek

Annotating test class with @ExtendWith(MockitoExtension.class) worked for me

使用 @ExtendWith(MockitoExtension.class) 注释测试类对我有用