1.5.0+ 升级后简单测试用例的 OutsideJqwikException
OutsideJqwikException on simple test case after 1.5.0+ upgrade
测试问题
我在 intelliJ 上编写了以下示例代码并 运行 它并在 v1.5.0+ 上不断出现相同的异常。
相同的代码在 1.4.0 及更低版本上工作正常...
这是我将实际测试代码缩减为的示例代码：
import java.util.Random;
import net.jqwik.api.Arbitraries;
import net.jqwik.api.Arbitrary;
import net.jqwik.api.Combinators;
public class Test {
public static Arbitrary<String> testing() {
return Combinators.withBuilder(StringBuilder::new)
.use(Arbitraries.of("123")).in(StringBuilder::append)
.build(StringBuilder::toString);
}
@org.junit.jupiter.api.Test
public void test() {
testing().generator(0).next(new Random()).value();
}
}
堆栈跟踪：
net.jqwik.engine.execution.lifecycle.OutsideJqwikException: The current action must be run on a jqwik thread, i.e. container, property or hook.
Maybe you spawned off a thread?
at net.jqwik.engine.execution.lifecycle.CurrentTestDescriptor.get(CurrentTestDescriptor.java:50)
at net.jqwik.engine.facades.StoreFacadeImpl.get(StoreFacadeImpl.java:24)
at net.jqwik.api.lifecycle.Store.get(Store.java:92)
at net.jqwik.api.lifecycle.Store.getOrCreate(Store.java:68)
at net.jqwik.engine.facades.Memoize.generatorStore(Memoize.java:13)
at net.jqwik.engine.facades.Memoize.memoizedGenerator(Memoize.java:26)
at net.jqwik.engine.facades.ArbitraryFacadeImpl.memoizedGenerator(ArbitraryFacadeImpl.java:221)
at net.jqwik.api.Arbitrary.generator(Arbitrary.java:92)
at net.jqwik.api.Combinators$Combinator2.rawGenerator(Combinators.java:264)
at net.jqwik.api.Combinators$Combinator2.generator(Combinators.java:255)
at net.jqwik.engine.facades.ArbitraryFacadeImpl.generator(ArbitraryFacadeImpl.java:79)
at com.test.my.code.project.Test.test(Test.java:18)
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$ofVoidMethod[=11=](ExecutableInvoker.java:115)
at org.junit.jupiter.engine.execution.ExecutableInvoker.lambda$invoke[=11=](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(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$executeRecursively(NodeTestTask.java:139)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively(NodeTestTask.java:129)
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively(NodeTestTask.java:127)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:126)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:84)
at org.junit.platform.engine.support.hierarchical.ForkJoinPoolHierarchicalTestExecutorService$ExclusiveTask.compute(ForkJoinPoolHierarchicalTestExecutorService.java:185)
at org.junit.platform.engine.support.hierarchical.ForkJoinPoolHierarchicalTestExecutorService.invokeAll(ForkJoinPoolHierarchicalTestExecutorService.java:129)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively(NodeTestTask.java:143)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively(NodeTestTask.java:129)
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively(NodeTestTask.java:127)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:126)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:84)
at org.junit.platform.engine.support.hierarchical.ForkJoinPoolHierarchicalTestExecutorService$ExclusiveTask.compute(ForkJoinPoolHierarchicalTestExecutorService.java:185)
at org.junit.platform.engine.support.hierarchical.ForkJoinPoolHierarchicalTestExecutorService.invokeAll(ForkJoinPoolHierarchicalTestExecutorService.java:129)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively(NodeTestTask.java:143)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively(NodeTestTask.java:129)
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively(NodeTestTask.java:127)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:126)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:84)
at org.junit.platform.engine.support.hierarchical.ForkJoinPoolHierarchicalTestExecutorService$ExclusiveTask.compute(ForkJoinPoolHierarchicalTestExecutorService.java:185)
at java.base/java.util.concurrent.RecursiveAction.exec(RecursiveAction.java:189)
at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290)
at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020)
at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656)
at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594)
at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:183)
Process finished with exit code 255
- 删除
.use(Arbitraries.of("123")).in(StringBuilder::append) 将使测试通过，因此异常来自 generate(int)。
- 更改为 .example 或使用 @Example 标记似乎也有帮助，但我认为我不需要这样做，因为这是升级后的新问题。
jqwik 不再支持以您的方式使用生成器。相反，您必须使用：Arbitrary.sample() 或 Arbitrary.sampleStream() 在 @Property 或 @Example 方法之外生成值：
@org.junit.jupiter.api.Test
public void test() {
testing().sample();
}
原因是有效地生成值需要相当多的后台机制。
您应该阅读 https://jqwik.net/docs/current/user-guide.html#using-arbitraries-directly and especially https://jqwik.net/docs/current/user-guide.html#using-arbitraries-outside-jqwik-lifecycle 以获得更多指导。
此外，至少使用 1.5.6 版的 jqwik 或者 - 更好 - 最新的 1.6.1。
另外一个想到的问题是：为什么要自己生成样本而不使用jqwik的生命周期？这样做有几个正当理由，但 @Example 和 @Property.
已经涵盖了标准用例
测试问题
我在 intelliJ 上编写了以下示例代码并 运行 它并在 v1.5.0+ 上不断出现相同的异常。 相同的代码在 1.4.0 及更低版本上工作正常...
这是我将实际测试代码缩减为的示例代码：
import java.util.Random;
import net.jqwik.api.Arbitraries;
import net.jqwik.api.Arbitrary;
import net.jqwik.api.Combinators;
public class Test {
public static Arbitrary<String> testing() {
return Combinators.withBuilder(StringBuilder::new)
.use(Arbitraries.of("123")).in(StringBuilder::append)
.build(StringBuilder::toString);
}
@org.junit.jupiter.api.Test
public void test() {
testing().generator(0).next(new Random()).value();
}
}
堆栈跟踪：
net.jqwik.engine.execution.lifecycle.OutsideJqwikException: The current action must be run on a jqwik thread, i.e. container, property or hook.
Maybe you spawned off a thread?
at net.jqwik.engine.execution.lifecycle.CurrentTestDescriptor.get(CurrentTestDescriptor.java:50)
at net.jqwik.engine.facades.StoreFacadeImpl.get(StoreFacadeImpl.java:24)
at net.jqwik.api.lifecycle.Store.get(Store.java:92)
at net.jqwik.api.lifecycle.Store.getOrCreate(Store.java:68)
at net.jqwik.engine.facades.Memoize.generatorStore(Memoize.java:13)
at net.jqwik.engine.facades.Memoize.memoizedGenerator(Memoize.java:26)
at net.jqwik.engine.facades.ArbitraryFacadeImpl.memoizedGenerator(ArbitraryFacadeImpl.java:221)
at net.jqwik.api.Arbitrary.generator(Arbitrary.java:92)
at net.jqwik.api.Combinators$Combinator2.rawGenerator(Combinators.java:264)
at net.jqwik.api.Combinators$Combinator2.generator(Combinators.java:255)
at net.jqwik.engine.facades.ArbitraryFacadeImpl.generator(ArbitraryFacadeImpl.java:79)
at com.test.my.code.project.Test.test(Test.java:18)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:688)
at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)
at org.junit.jupiter.engine.execution.InvocationInterceptorChain$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[=11=](ExecutableInvoker.java:115)
at org.junit.jupiter.engine.execution.ExecutableInvoker.lambda$invoke[=11=](ExecutableInvoker.java:105)
at org.junit.jupiter.engine.execution.InvocationInterceptorChain$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$invokeTestMethod(TestMethodTestDescriptor.java:210)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:206)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:131)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:65)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively(NodeTestTask.java:139)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively(NodeTestTask.java:129)
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively(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.ForkJoinPoolHierarchicalTestExecutorService$ExclusiveTask.compute(ForkJoinPoolHierarchicalTestExecutorService.java:185)
at org.junit.platform.engine.support.hierarchical.ForkJoinPoolHierarchicalTestExecutorService.invokeAll(ForkJoinPoolHierarchicalTestExecutorService.java:129)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively(NodeTestTask.java:143)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively(NodeTestTask.java:129)
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively(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.ForkJoinPoolHierarchicalTestExecutorService$ExclusiveTask.compute(ForkJoinPoolHierarchicalTestExecutorService.java:185)
at org.junit.platform.engine.support.hierarchical.ForkJoinPoolHierarchicalTestExecutorService.invokeAll(ForkJoinPoolHierarchicalTestExecutorService.java:129)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively(NodeTestTask.java:143)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively(NodeTestTask.java:129)
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively(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.ForkJoinPoolHierarchicalTestExecutorService$ExclusiveTask.compute(ForkJoinPoolHierarchicalTestExecutorService.java:185)
at java.base/java.util.concurrent.RecursiveAction.exec(RecursiveAction.java:189)
at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290)
at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020)
at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656)
at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594)
at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:183)
Process finished with exit code 255
- 删除
.use(Arbitraries.of("123")).in(StringBuilder::append)将使测试通过，因此异常来自 generate(int)。 - 更改为 .example 或使用 @Example 标记似乎也有帮助，但我认为我不需要这样做，因为这是升级后的新问题。
jqwik 不再支持以您的方式使用生成器。相反，您必须使用：Arbitrary.sample() 或 Arbitrary.sampleStream() 在 @Property 或 @Example 方法之外生成值：
@org.junit.jupiter.api.Test
public void test() {
testing().sample();
}
原因是有效地生成值需要相当多的后台机制。 您应该阅读 https://jqwik.net/docs/current/user-guide.html#using-arbitraries-directly and especially https://jqwik.net/docs/current/user-guide.html#using-arbitraries-outside-jqwik-lifecycle 以获得更多指导。
此外，至少使用 1.5.6 版的 jqwik 或者 - 更好 - 最新的 1.6.1。
另外一个想到的问题是：为什么要自己生成样本而不使用jqwik的生命周期？这样做有几个正当理由，但 @Example 和 @Property.