title: Unable to start unbound service inside of Android JUnit 4 instrumented test
body: <p>I'm trying to test basic unbound service with testing support library framework:
  <a href="http://developer.android.com/tools/testing-support-library/index.html" rel="noreferrer">http://developer.android.com/tools/testing-support-library/index.html</a></p>
  
  <p>LocalService.java:</p>
  
  <pre><code>public class LocalService extends Service {
  @Override
  public IBinder onBind(Intent intent) {
          return null;
      }
  }
  </code></pre>
  
  <p>LocalServiceTest.java:</p>
  
  <pre><code>@RunWith(AndroidJUnit4.class)
  public class LocalServiceTest {
      @Rule
      public final ServiceTestRule mServiceRule = new ServiceTestRule();
  
      @Test
      public void testWithUnboundService() throws TimeoutException {
          Intent serviceIntent =
              new Intent(InstrumentationRegistry.getTargetContext(), LocalService.class);
  
          mServiceRule.startService(serviceIntent);
      }
  }
  </code></pre>
  
  <p>When I try to run test, I get following TimeoutException:</p>
  
  <pre><code>java.util.concurrent.TimeoutException: Waited for 5 SECONDS, but service was never connected
  at android.support.test.rule.ServiceTestRule.waitOnLatch(ServiceTestRule.java:258)
  at android.support.test.rule.ServiceTestRule.bindServiceAndWait(ServiceTestRule.java:207)
  at android.support.test.rule.ServiceTestRule.startService(ServiceTestRule.java:137)
  at com.example.android.testing.ServiceTestRuleSample.LocalServiceTest.testWithBoundService(LocalServiceTest.java:71)
  at java.lang.reflect.Method.invokeNative(Native Method)
  at java.lang.reflect.Method.invoke(Method.java:515)
  at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
  at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
  at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
  at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
  at android.support.test.rule.ServiceTestRule$ServiceStatement.evaluate(ServiceTestRule.java:329)
  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$2.evaluate(ParentRunner.java:268)
  at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
  at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
  at org.junit.runner.JUnitCore.run(JUnitCore.java:115)
  at android.support.test.internal.runner.TestExecutor.execute(TestExecutor.java:54)
  at android.support.test.runner.AndroidJUnitRunner.onStart(AndroidJUnitRunner.java:240)
  at android.app.Instrumentation$InstrumentationThread.run(Instrumentation.java:1729)
  </code></pre>
  
  <p>Is it possible to test such kind of services with ServiceTestRule?
  If no, is there another appropriate way to start and stop services using JUnit 4 test classes?</p>