我继承了旧版 Android 项目并开始添加 Robolectric 3 和 JUnit 4 测试用例。遗憾的是，由于在 Robolectric 中不起作用的意大利面条代码和框架，目前无法初始化主应用程序类。我想为测试替换我的应用程序类。但是 Robolectric 在我更新 RuntimeEnviroment.application 变量之前就崩溃了。 有没有办法在 Robolectric 中禁用 list 应用程序创建？

这是我一直在尝试做的事情:

@RunWith(RobolectricGradleTestRunner.class)
@Config(constants = BuildConfig.class, sdk = 21, manifest = Config.NONE)
public class TestClass {
    @Before
    public void setUp() {
        RuntimeEnvironment.application = new Application();
    }

    @Test
    public void testFunc() {
        // some testing goes here
    }
}

但由于 Parse 框架，它失败了:

java.lang.RuntimeException
    at org.robolectric.util.SimpleFuture.run(SimpleFuture.java:61)
    at org.robolectric.shadows.ShadowAsyncTask$2.run(ShadowAsyncTask.java:96)
    at org.robolectric.util.Scheduler.runOrQueueRunnable(Scheduler.java:230)
    at org.robolectric.util.Scheduler.postDelayed(Scheduler.java:85)
    at org.robolectric.util.Scheduler.post(Scheduler.java:72)
    at org.robolectric.shadows.ShadowAsyncTask.execute(ShadowAsyncTask.java:93)
    at android.os.AsyncTask.execute(AsyncTask.java)
    at com.facebook.internal.Utility.loadAppSettingsAsync(Utility.java:771)
    at com.facebook.FacebookSdk.sdkInitialize(FacebookSdk.java:167)
    at com.facebook.FacebookSdk.sdkInitialize(FacebookSdk.java:146)
    at com.parse.FacebookController$FacebookSdkDelegateImpl.initialize(FacebookController.java:187)
    at com.parse.FacebookController.initialize(FacebookController.java:70)
    at com.parse.ParseFacebookUtils.initialize(ParseFacebookUtils.java:108)
    at com.parse.ParseFacebookUtils.initialize(ParseFacebookUtils.java:92)
    at MyApplication.initParse(StrongliftsApplication.java:174)
    at MyApplication.onCreate(StrongliftsApplication.java:112)
    at org.robolectric.internal.ParallelUniverse.setUpApplicationState(ParallelUniverse.java:140)
    at org.robolectric.RobolectricTestRunner.setUpApplicationState(RobolectricTestRunner.java:433)
    at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:240)
    at org.robolectric.RobolectricTestRunner.runChild(RobolectricTestRunner.java:188)
    at org.robolectric.RobolectricTestRunner.runChild(RobolectricTestRunner.java:54)
    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.robolectric.RobolectricTestRunner$1.evaluate(RobolectricTestRunner.java:152)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    at org.junit.runners.Suite.runChild(Suite.java:128)
    at org.junit.runners.Suite.runChild(Suite.java:27)
    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 org.junit.runner.JUnitCore.run(JUnitCore.java:137)
    at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:78)
    at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:212)
    at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:68)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)

最佳答案

所以碰巧 Robolectric 开发人员预见到了这种情况，@Config 指令允许应用程序覆盖。此外， list 覆盖对我没有任何帮助，因此可以将其删除。

@RunWith(RobolectricGradleTestRunner.class)
@Config(constants = BuildConfig.class, sdk = 21, application = MyTestApplication.class)
public class TestClass {
    @Test
    public void testFunc() {
        // some testing goes here
    }
}

由于我们的应用程序使用单例模式，因此我还必须初始化单例实例。我故意忽略所有其他初始化，因为它主要是初始化框架。这是我的 MyTestApplication 的样子:

public class MyTestApplication extends MyApplication {
    @Override
    public void onCreate() {
        MyApplication.instance = this;
    }
}

关于java - 如何覆盖 Robolectric 应用程序？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/35852385/