java - Espresso 单元测试 : How to disable animation in code

Question

我已经完成了这些步骤

To avoid flakiness, we highly recommend that you turn off system animations on the virtual or physical device(s) used for testing.

On your device, under Settings->Developer options disable the following 3 settings:
Window animation scale
Transition animation scale
Animator duration scale

但是在我的代码中的某个地方我使用了这个

animation = new RotateAnimation(0f, 360f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
animation.setInterpolator(new LinearInterpolator());
animation.setRepeatCount(Animation.INFINITE);
animation.setDuration(5000);
imageScanLogo.startAnimation(animation);

在我的 Espresso 测试类(class)中，我单击该 View

onView(withId(R.id.imageScanLogo)).perform(click());

之后它就会卡在那个点上并且不再前进。当我从代码中注释掉动画时，它工作得很好。 这是堆栈跟踪，它说他无法单击该 View ，但实际上他单击了它并且在测试中没有取得任何进展。

android.support.test.espresso.PerformException: Error performing 'single click - At Coordinates: 539, 946 and precision: 16, 16' on view 'with id: com.android.x.y/imageScanLogo'.
at android.support.test.espresso.PerformException$Builder.build(PerformException.java:83)
at android.support.test.espresso.base.DefaultFailureHandler.getUserFriendlyError(DefaultFailureHandler.java:80)
at android.support.test.espresso.base.DefaultFailureHandler.handle(DefaultFailureHandler.java:56)
at android.support.test.espresso.ViewInteraction.runSynchronouslyOnUiThread(ViewInteraction.java:184)
at android.support.test.espresso.ViewInteraction.doPerform(ViewInteraction.java:115)
at android.support.test.espresso.ViewInteraction.perform(ViewInteraction.java:87)
at com.android.x.y.BaseTests.scanTagsAndUpload(BaseTests.java:88)
at com.android.x.y.CleanScanTest.scan(CleanScanTest.java:61)
at java.lang.reflect.Method.invoke(Native Method)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at android.support.test.internal.statement.UiThreadStatement.evaluate(UiThreadStatement.java:55)
at android.support.test.rule.ActivityTestRule$ActivityStatement.evaluate(ActivityTestRule.java:270)
at org.junit.rules.RunRules.evaluate(RunRules.java:20)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
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.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$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at org.junit.runner.JUnitCore.run(JUnitCore.java:115)
at android.support.test.internal.runner.TestExecutor.execute(TestExecutor.java:59)
at android.support.test.runner.AndroidJUnitRunner.onStart(AndroidJUnitRunner.java:262)
at android.app.Instrumentation$InstrumentationThread.run(Instrumentation.java:1879)
Caused by: android.support.test.espresso.AppNotIdleException: Looped for 4864 iterations over 30 SECONDS. The following Idle Conditions failed .
at android.support.test.espresso.IdlingPolicy.handleTimeout(IdlingPolicy.java:61)
at android.support.test.espresso.base.UiControllerImpl.loopUntil(UiControllerImpl.java:480)
at android.support.test.espresso.base.UiControllerImpl.loopUntil(UiControllerImpl.java:411)
at android.support.test.espresso.base.UiControllerImpl.injectMotionEvent(UiControllerImpl.java:229)
at android.support.test.espresso.action.MotionEvents.sendUp(MotionEvents.java:138)
at android.support.test.espresso.action.MotionEvents.sendUp(MotionEvents.java:118)
at android.support.test.espresso.action.Tap.sendSingleTap(Tap.java:135)
at android.support.test.espresso.action.Tap.access$100(Tap.java:35)
at android.support.test.espresso.action.Tap$1.sendTap(Tap.java:40)
at android.support.test.espresso.action.GeneralClickAction.perform(GeneralClickAction.java:98)
at android.support.test.espresso.ViewInteraction$1.run(ViewInteraction.java:144)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:423)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

我的超时策略是这样设置的

@Before
    public void resetTimeout() {
        IdlingPolicies.setMasterPolicyTimeout(30, TimeUnit.SECONDS);
        IdlingPolicies.setIdlingResourceTimeout(20, TimeUnit.SECONDS);
    }

我不想对代码中的每个动画进行注释，也不想开始构建一些标志来确定是否启用/禁用测试动画。

Answer 1

尝试使用Animator API 而是 the preferred animation method since Honeycomb (3.0) .

ObjectAnimator anim = ObjectAnimator.ofInt(imageScanLogo, "rotation", 0, 360);
anim.setRepeatCount(ValueAnimator.INFINITE);
animation.setInterpolator(new LinearInterpolator());
animation.setDuration(5000);
anim.start();

也许 Espresso 不会检查旧的动画 API，或者在开发人员设置中禁用动画不适用于旧的动画。