java - Karate BDD 框架通过简单的配置抛出 NPE

Question

我正在尝试使用 Karate BDD 框架在我的 API 套件上运行测试，但遇到了 NPE。据我所知，我没有配置错误任何东西，但我确定我忽略了一些东西。鉴于以下功能文件和任务运行器，我是否做错了什么？

更新:这适用于 Karate 0.2.9，但不适用于当前最新的 0.5.0.2

特征文件:.../src/test/resources/root/feature/sanity.feature

Feature: Sanity Check
  As a developer
  I want to ensure that the test framework is active
  So that I can be confident I am testing correctly

  Background:
    * url httpBin

  Scenario: httpBin reflection
    Given path '/anything/foo/bar?baz=quux'
    When method GET
    Then status 200
    And match response contains { "args": {"baz":"quux"}}
    And match response contains { "method": "GET" }

驱动程序:.../src/test/java/root/feature/sanity/SmokeTest.java

package root.feature.sanity;

import com.intuit.karate.junit4.Karate;
import cucumber.api.CucumberOptions;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.runner.RunWith;

/**
 * Created by williamspaul on 8/29/17.
 */
@RunWith(Karate.class)
@CucumberOptions(plugin = {"pretty", "html:target/cucumber"})
public class SmokeTest {

    @BeforeClass
    public static void beforeClass() {}

    @AfterClass
    public static void afterClass() {}

}

mvn 测试输出

-------------------------------------------------------
 T E S T S
-------------------------------------------------------
Running root.feature.sanity.SmokeTest
10:46:08.568 [main] DEBUG com.intuit.karate.cucumber.CucumberRunner - init test class: class apigee.feature.sanity.SmokeTest
10:46:08.680 [main] DEBUG com.intuit.karate.cucumber.CucumberRunner - loading feature: /(private-path)/target/test-classes/root/feature/sanity/sanity.feature
Feature: Sanity Check
  As a developer
  I want to ensure that the test framework is active
  So that I can be confident I am testing correctly

  Background:     # apigee/feature/sanity/sanity.feature:6
    * url httpBin

0 Scenarios
0 Steps
0m0.000s

Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.389 sec <<< FAILURE!
Feature: Sanity Check  Time elapsed: 0.11 sec  <<< ERROR!
java.lang.NullPointerException
    at com.intuit.karate.cucumber.CucumberUtils.afterStep(CucumberUtils.java:148)
    at com.intuit.karate.cucumber.CucumberUtils.runStep(CucumberUtils.java:140)
    at com.intuit.karate.cucumber.KarateRuntime.runStep(KarateRuntime.java:51)
    at cucumber.runtime.model.StepContainer.runStep(StepContainer.java:44)
    at cucumber.runtime.model.StepContainer.runSteps(StepContainer.java:39)
    at cucumber.runtime.model.CucumberScenario.runBackground(CucumberScenario.java:59)
    at cucumber.runtime.model.CucumberScenario.run(CucumberScenario.java:42)
    at cucumber.runtime.junit.ExecutionUnitRunner.run(ExecutionUnitRunner.java:102)
    at cucumber.runtime.junit.FeatureRunner.runChild(FeatureRunner.java:63)
    at cucumber.runtime.junit.FeatureRunner.runChild(FeatureRunner.java:18)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    at cucumber.runtime.junit.FeatureRunner.run(FeatureRunner.java:70)
    at com.intuit.karate.junit4.Karate.runChild(Karate.java:60)
    at com.intuit.karate.junit4.Karate.runChild(Karate.java:25)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    at com.intuit.karate.junit4.Karate.run(Karate.java:66)
    at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:252)
    at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:141)
    at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:112)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189)
    at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165)
    at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85)
    at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:115)
    at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:75)


Results :

Tests in error:
  Feature: Sanity Check

Tests run: 1, Failures: 0, Errors: 1, Skipped: 0

Answer 1

您实际上使用的是测试版。只需使用 0.5.0 就可以了。

顺便说一句，非常感谢您找到这个，它已在开发分支中修复:https://github.com/intuit/karate/issues/158

也请查看 this tweet有关为什么需要这个前/后步骤钩子(Hook)的详细信息