Don't attempt to launch disabled activities in smoke test.

Also remove the superfluous runner from manifest.

Change-Id: I194b260d443d9bd4a16f62893bb2f7bcfb7ed40e

tests/SmokeTest/tests/AndroidManifest.xml

@@ -26,15 +26,6 @@
         <uses-library android:name="android.test.runner" />
     </application>
 
-    <!--
-    This declares that this app uses the instrumentation test runner targeting the package of
-    com.android.smoketest.  To run the tests use the command:
-    `adb shell am instrument -w com.android.smoketest.tests/android.test.InstrumentationTestRunner`
-    -->
-    <instrumentation android:name="android.test.InstrumentationTestRunner"
-                     android:targetPackage="com.android.smoketest"
-                     android:label="System Smoke Tests"/>
-
     <!--
     This declares a method to run the instrumentation with a special runner, which will run each
     app as a separate testcase.  To do so, use the command:

tests/SmokeTest/tests/src/com/android/smoketest/ProcessErrorsTest.java

@@ -154,6 +154,11 @@ public Collection<ProcessError> runOneActivity(ResolveInfo app) {
 
         // launch app, and wait 7 seconds for it to start/settle
         final Intent intent = intentForActivity(app);
+        if (intent == null) {
+            Log.i(TAG, String.format("Activity %s/%s is disabled, skipping",
+                    app.activityInfo.packageName, app.activityInfo.name));
+            return Collections.EMPTY_LIST;
+        }
         getContext().startActivity(intent);
         try {
             Thread.sleep(appLaunchWait);
@@ -238,10 +243,16 @@ static List<ResolveInfo> getLauncherActivities(PackageManager pm) {
     /**
      * A helper function to create an {@link Intent} to run, given a {@link ResolveInfo} specifying
      * an activity to be launched.
+     * 
+     * @return the {@link Intent} or <code>null</code> if given app is disabled
      */
-    static Intent intentForActivity(ResolveInfo app) {
+    Intent intentForActivity(ResolveInfo app) {
         final ComponentName component = new ComponentName(app.activityInfo.packageName,
                 app.activityInfo.name);
+        if (getContext().getPackageManager().getComponentEnabledSetting(component) == 
+                PackageManager.COMPONENT_ENABLED_STATE_DISABLED) {
+            return null;
+        }
         final Intent intent = new Intent(Intent.ACTION_MAIN);
         intent.setComponent(component);
         intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);