无法使用 Jersey 测试框架运行单元测试用例答案

【问题标题】：Not able to run Unit test case using Jersey Test Framework无法使用 Jersey 测试框架运行单元测试用例
【发布时间】：2014-07-15 06:14:17
【问题描述】：

我刚刚开始编写 JerseyTest 框架的单元测试用例。我已经按照这个例子

http://www.hascode.com/2011/09/rest-assured-vs-jersey-test-framework-testing-your-restful-web-services/comment-page-1/#comment-4791,

我能够运行该服务来获取 JSON 数据。但是当我使用 JUnit 运行单元测试时，我遇到了以下问题。任何建议将不胜感激。

com.sun.jersey.test.framework.spi.container.TestContainerException: The default test container factory, null, could not be instantiated
at com.sun.jersey.test.framework.JerseyTest.getDefaultTestContainerFactory(JerseyTest.java:408)
at com.sun.jersey.test.framework.JerseyTest.getTestContainerFactory(JerseyTest.java:273)
at com.sun.jersey.test.framework.JerseyTest.<init>(JerseyTest.java:165)
at com.hascode.tutorial.rest.UserServiceTestUsingJerseyTestFramework.<init>(UserServiceTestUsingJerseyTestFramework.java:17)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at org.junit.runners.BlockJUnit4ClassRunner.createTest(BlockJUnit4ClassRunner.java:195)
at org.junit.runners.BlockJUnit4ClassRunner$1.runReflectiveCall(BlockJUnit4ClassRunner.java:244)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.BlockJUnit4ClassRunner.methodBlock(BlockJUnit4ClassRunner.java:241)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

原因：java.lang.NullPointerException 在 com.sun.jersey.test.framework.JerseyTest.getDefaultTestContainerFactory(JerseyTest.java:406) ... 25 更多

【问题讨论】：

标签： unit-testing junit jersey

【解决方案1】：

您可能忘记添加一个包含 Jersey 测试容器实现的模块，例如jersey-test-framework-grizzly2:

<dependency>
    <groupId>com.sun.jersey.jersey-test-framework</groupId>
    <artifactId>jersey-test-framework-grizzly2</artifactId>
    <version>1.18.1</version>
    <scope>test</scope>
</dependency>

你可以在Jersey Test Framework的章节中找到更多信息。

【讨论】：