Add a long track test case to stress test.

MyTracksTest/src/com/google/android/apps/mytracks/endtoendtest/others/BigTestUtils.java

@@ -77,7 +77,7 @@ public class BigTestUtils {
         new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
     int rawlevel = batteryIntent.getIntExtra("level", -1);
     double scale = batteryIntent.getIntExtra("scale", -1);
-    return "Phone use " + rawlevel + " of " + scale + " battery";
+    return "Device has " + rawlevel + " of " + scale + " battery left";
   }
 
   /**

MyTracksTest/src/com/google/android/apps/mytracks/endtoendtest/others/ResourceUsageTest.java

@@ -46,7 +46,7 @@ public class ResourceUsageTest extends ActivityInstrumentationTestCase2<TrackLis
   private static boolean isUserConfirmed = false;
   private Context context;
   /**
-   * Default duration for each test is one hour.
+   * Default duration for each test is half one hour.
    */
   private int TEST_DURATION_IN_MILLISECONDS = 30 * 60 * 1000;
   private int INTERVALE_TO_CHECK = 5 * 60 * 1000;
@@ -81,7 +81,8 @@ public class ResourceUsageTest extends ActivityInstrumentationTestCase2<TrackLis
           new AlertDialog.Builder(EndToEndTestUtils.SOLO.getCurrentActivity())
               .setTitle("Confirm long time test.")
               .setMessage(
-                  "Each case need run " + TEST_DURATION_IN_MILLISECONDS / 1000 / 60
+                  "Please disconnect the power cord of your device and click 'Start' button. Each case need run "
+                      + TEST_DURATION_IN_MILLISECONDS / 1000 / 60
                       + " minutes, and the battery/memory usage will be recorded in every "
                       + INTERVALE_TO_CHECK / 60 / 1000 + "minutes.")
               .setPositiveButton("Start Test", new DialogInterface.OnClickListener() {

MyTracksTest/src/com/google/android/apps/mytracks/endtoendtest/others/StressTest.java

@@ -124,6 +124,22 @@ public class StressTest extends ActivityInstrumentationTestCase2<TrackListActivi
     }
     EndToEndTestUtils.stopRecording(true);
   }
+  
+  /**
+   * Records a long track.
+   */
+  public void testRecordLongTrack() {
+    if (!runTest) {
+      Log.i(EndToEndTestUtils.LOG_TAG, BigTestUtils.DISABLE_MESSAGE);
+      return;
+    }
+    EndToEndTestUtils.startRecording();
+    int gpsNumber = 5000;
+    for (int i = 0; i < gpsNumber / 10; i++) {
+      EndToEndTestUtils.sendGps(10, i * 10);
+    }
+    EndToEndTestUtils.stopRecording(true);
+  }
 
   /**
    * Switches view between MAP, CHART and STAT. And create way points, pause and