在我的测试用例中,我必须记录1小时,在机器人solo.sleep(600000)完成了我的工作,但在espresso我感到困惑IdlingResource的概念.我必须开始录音并等待一段时间(取决于测试的类型)15分钟,60分钟等
机器人中的等效代码
solo.clickOnView(solo.getView("start_record"));
solo.sleep(duration * 60 * 1000);
solo.clickOnView(solo.getView("stop_record"));
我尝试在espresso中使用它
@RunWith(AndroidJUnit4.class)
@SmallTest
public class AaEspressoTest {
private static final String LAUNCHER_ACTIVITY_FULL_CLASSNAME = "com.absd.rec.RecorderActivity";
private static Class<?> launcherActivityClass;
private Solo solo;
private static CoreRecordingTest skyroTestRunner;
private static Class<? extends Activity> activityClass;
static {
try {
activityClass = (Class<? extends Activity>) Class.forName(LAUNCHER_ACTIVITY_FULL_CLASSNAME);
} catch (ClassNotFoundException e) {
throw new RuntimeException(e);
}
}
@Rule
public final ActivityTestRule<?> activityRule
= new ActivityTestRule<>(activityClass);
private IntentServiceIdlingResource idlingResource;
@Before
public void registerIntentServiceIdlingResource() {
Instrumentation instrumentation = InstrumentationRegistry.getInstrumentation();
idlingResource = new IntentServiceIdlingResource(instrumentation.getTargetContext());
Espresso.registerIdlingResources(idlingResource);
}
@After
public void unregisterIntentServiceIdlingResource() {
Espresso.unregisterIdlingResources(idlingResource);
}
@Test
public void testHello() throws Exception {
onView(withId(AaEspressoTest.getId("recorderpage_record"))).perform(click());
registerIntentServiceIdlingResource();
onView(withId(AaEspressoTest.getId("recorderpage_stop"))).perform(click());
}
}
空闲资源
public class IntentServiceIdlingResource implements IdlingResource {
private final Context context;
private ResourceCallback resourceCallback;
public static boolean status = false;
public IntentServiceIdlingResource(Context context) {
this.context = context;
}
@Override
public String getName() {
return IntentServiceIdlingResource.class.getName();
}
@Override
public boolean isIdleNow() {
return getTimer();
}
@Override
public void registerIdleTransitionCallback(ResourceCallback resourceCallback) {
this.resourceCallback = resourceCallback;
}
private static boolean getTimer() {
new CountDownTimer(5000,1000) {
@Override
public void onTick(long millisUntilFinished) {
// Do Nothing
status = false;
}
@Override
public void onFinish() {
status = true;
}
};
return status;
}
}
例外：
android.support.test.espresso.IdlingResourceTimeoutException: Wait for [com.adbs.recorder.IntentServiceIdlingResource] to become idle timed out
解决方法
您需要一个具有isIdleNow()的IdlingResource,只有在特定的时间量过去时才返回true.为了达到这个目的,保存开始时间并与当前时间进行比较：
public class ElapsedTimeIdlingResource implements IdlingResource {
private final long startTime;
private final long waitingTime;
private ResourceCallback resourceCallback;
public ElapsedTimeIdlingResource(long waitingTime) {
this.startTime = System.currentTimeMillis();
this.waitingTime = waitingTime;
}
@Override
public String getName() {
return ElapsedTimeIdlingResource.class.getName() + ":" + waitingTime;
}
@Override
public boolean isIdleNow() {
long elapsed = System.currentTimeMillis() - startTime;
boolean idle = (elapsed >= waitingTime);
if (idle) {
resourceCallback.onTransitionToIdle();
}
return idle;
}
@Override
public void registerIdleTransitionCallback(
ResourceCallback resourceCallback) {
this.resourceCallback = resourceCallback;
}
}
在测试中创建并注册此空闲资源：
@Test
public static void waitForOneHour() {
long waitingTime = DateUtils.HOUR_IN_MILLIS;
// Start
onView(withId(AaEspressoTest.getId("recorderpage_record")))
.perform(click());
// Make sure Espresso does not time out
IdlingPolicies.setMasterPolicyTimeout(
waitingTime * 2,TimeUnit.MILLISECONDS);
IdlingPolicies.setIdlingResourceTimeout(
waitingTime * 2,TimeUnit.MILLISECONDS);
// Now we wait
IdlingResource idlingResource = new ElapsedTimeIdlingResource(waitingTime);
Espresso.registerIdlingResources(idlingResource);
// Stop
onView(withId(AaEspressoTest.getId("recorderpage_stop")))
.perform(click());
// Clean up
Espresso.unregisterIdlingResources(idlingResource);
}
您需要setMasterPolicyTimeout和setIdlingResourceTimeout调用,以确保Espresso由于超时而不会终止测试.
完整例子：https://github.com/chiuki/espresso-samples/tree/master/idling-resource-elapsed-time
