Adding tests and making minor reorg changes.

MyTracks/src/com/google/android/apps/mytracks/content/TrackDataHub.java

@@ -219,6 +219,8 @@ public class TrackDataHub {
     listenerHandlerThread = new HandlerThread("trackDataContentThread");
     listenerHandlerThread.start();
     listenerHandler = new Handler(listenerHandlerThread.getLooper());
+
+    resetState();
   }
 
   /**
@@ -416,13 +418,6 @@ public class TrackDataHub {
   public void unregisterTrackDataListener(TrackDataListener listener) {
     synchronized (listeners) {
       listeners.unregisterTrackDataListener(listener);
-      
-      if (!listeners.hasListeners()) {
-        // We lost our last listener, don't bother keeping the listener state.
-        // If any of the old listeners happens to be re-added, we'll use state from its
-        // old registration instead.
-        resetState();
-      }
 
       // Don't load any data or start internal listeners if start() hasn't been
       // called. When it is called, we'll do both things.
@@ -931,9 +926,7 @@ public class TrackDataHub {
       // a few of them (why miss the oportunity?).
 
       Log.i(TAG, "Resampling point set after " + numLoadedPoints + " points.");
-      firstSeenLocationId = -1;
-      lastSeenLocationId = -1;
-      numLoadedPoints = 0;
+      resetState();
       synchronized (listeners) {
         sampledListeners = getListenersFor(ListenerDataType.POINT_UPDATES);
         sampledOutListeners = getListenersFor(ListenerDataType.SAMPLED_OUT_POINT_UPDATES);
@@ -990,6 +983,9 @@ public class TrackDataHub {
       if (pointSamplingFrequency == -1) {
         // Now we already have at least one point, calculate the sampling
         // frequency.
+        // It should be noted that a non-obvious consequence of this sampling is that
+        // no matter how many points we get in the newest batch, we'll never exceed
+        // MAX_DISPLAYED_TRACK_POINTS = 2 * TARGET_DISPLAYED_TRACK_POINTS before resampling.
         long numTotalPoints = lastStoredLocationId - localFirstSeenLocationId;
         pointSamplingFrequency =
             (int) (1 + numTotalPoints / Constants.TARGET_DISPLAYED_TRACK_POINTS);

MyTracksTest/src/com/google/android/apps/mytracks/content/TrackDataHubTest.java

@@ -24,14 +24,8 @@ import static com.google.android.testing.mocking.AndroidMock.leq;
 import static com.google.android.testing.mocking.AndroidMock.same;
 
 import com.google.android.apps.mytracks.Constants;
-import com.google.android.apps.mytracks.content.MyTracksProviderUtils;
-import com.google.android.apps.mytracks.content.Track;
-import com.google.android.apps.mytracks.content.TrackDataHub;
-import com.google.android.apps.mytracks.content.TrackDataListener;
-import com.google.android.apps.mytracks.content.DataSourcesWrapper;
-import com.google.android.apps.mytracks.content.TracksColumns;
-import com.google.android.apps.mytracks.content.Waypoint;
-import com.google.android.apps.mytracks.content.WaypointsColumns;
+import com.google.android.apps.mytracks.content.MyTracksProviderUtils.LocationFactory;
+import com.google.android.apps.mytracks.content.MyTracksProviderUtils.LocationIterator;
 import com.google.android.apps.mytracks.content.TrackDataHub.ListenerDataType;
 import com.google.android.apps.mytracks.content.TrackDataListener.ProviderState;
 import com.google.android.apps.mytracks.services.TrackRecordingServiceTest.MockContext;
@@ -55,6 +49,8 @@ import android.test.mock.MockContentResolver;
 
 import java.lang.reflect.Constructor;
 import java.util.EnumSet;
+import java.util.HashSet;
+import java.util.Set;
 
 import org.easymock.Capture;
 import org.easymock.IAnswer;
@@ -66,7 +62,7 @@ import org.easymock.IAnswer;
  */
 public class TrackDataHubTest extends AndroidTestCase {
 
-  private static final long TRACK_ID = 42;
+  private static final long TRACK_ID = 42L;
   private MyTracksProviderUtils providerUtils;
   private TrackDataHub hub;
   private TrackDataListeners listeners;
@@ -106,8 +102,8 @@ public class TrackDataHubTest extends AndroidTestCase {
       }
     };
 
-    listener1 = AndroidMock.createMock("listener1", TrackDataListener.class);
-    listener2 = AndroidMock.createMock("listener2", TrackDataListener.class);
+    listener1 = AndroidMock.createStrictMock("listener1", TrackDataListener.class);
+    listener2 = AndroidMock.createStrictMock("listener2", TrackDataListener.class);
   }
 
   @Override
@@ -146,49 +142,48 @@ public class TrackDataHubTest extends AndroidTestCase {
     listener1.onTrackUpdated(track);
     listener2.onTrackUpdated(track);
 
-    AndroidMock.replay(dataSources, providerUtils, listener1, listener2);
+    replay();
 
     hub.registerTrackDataListener(listener1, EnumSet.of(ListenerDataType.TRACK_UPDATES));
     hub.start();
     hub.registerTrackDataListener(listener2, EnumSet.of(ListenerDataType.TRACK_UPDATES));
 
-    AndroidMock.verify(listener1, listener2, dataSources);
-    AndroidMock.reset(listener1, listener2, dataSources);
+    verifyAndReset();
 
     ContentObserver observer = observerCapture.getValue();
+    expect(providerUtils.getTrack(TRACK_ID)).andStubReturn(track);
 
     // Now expect an update.
     listener1.onTrackUpdated(track);
     listener2.onTrackUpdated(track);
 
-    AndroidMock.replay(listener1, listener2, dataSources);
+    replay();
 
     observer.onChange(false);
 
-    AndroidMock.verify(listener1, listener2, dataSources);
-    AndroidMock.reset(listener1, listener2, dataSources);
+    verifyAndReset();
 
     // Unregister one, get another update.
+    expect(providerUtils.getTrack(TRACK_ID)).andStubReturn(track);
     listener2.onTrackUpdated(track);
 
-    AndroidMock.replay(listener1, listener2, dataSources);
+    replay();
 
     hub.unregisterTrackDataListener(listener1);
 
     observer.onChange(false);
 
-    AndroidMock.verify(listener1, listener2, dataSources);
-    AndroidMock.reset(listener1, listener2, dataSources);
+    verifyAndReset();
 
     // Unregister the other, expect internal unregistration
     dataSources.unregisterContentObserver(observer);
 
-    AndroidMock.replay(listener1, listener2, dataSources);
+    replay();
 
     hub.unregisterTrackDataListener(listener2);
     observer.onChange(false);
 
-    AndroidMock.verify(listener1, listener2, dataSources);
+    verifyAndReset();
   }
 
   private static class FixedSizeCursorAnswer implements IAnswer<Cursor> {
@@ -208,6 +203,90 @@ public class TrackDataHubTest extends AndroidTestCase {
     }
   }
 
+  private static class FixedSizeLocationIterator implements LocationIterator {
+    private final long startId;
+    private final Location[] locs;
+    private final Set<Integer> splitIndexSet = new HashSet<Integer>();
+    private int currentIdx = -1;
+
+    public FixedSizeLocationIterator(long startId, int size) {
+      this(startId, size, null);
+    }
+
+    public FixedSizeLocationIterator(long startId, int size, int... splitIndices) {
+      this.startId = startId;
+      this.locs = new Location[size];
+
+      for (int i = 0; i < size; i++) {
+        Location loc = new Location("gps");
+        loc.setLatitude(-15.0 + i / 1000.0);
+        loc.setLongitude(37 + i / 1000.0);
+        loc.setAltitude(i);
+
+        locs[i] = loc;
+      }
+
+      if (splitIndices != null) {
+        for (int splitIdx : splitIndices) {
+          splitIndexSet.add(splitIdx);
+
+          Location splitLoc = locs[splitIdx];
+          splitLoc.setLatitude(100.0);
+          splitLoc.setLongitude(200.0);
+        }
+      }
+    }
+
+    public void expectLocationsDelivered(TrackDataListener listener) {
+      for (int i = 0; i < locs.length; i++) {
+        if (splitIndexSet.contains(i)) {
+          listener.onSegmentSplit();
+        } else {
+          listener.onNewTrackPoint(locs[i]);
+        }
+      }
+    }
+
+    public void expectSampledLocationsDelivered(
+        TrackDataListener listener, int sampleFrequency, boolean includeSampledOut) {
+      for (int i = 0; i < locs.length; i++) {
+        if (splitIndexSet.contains(i)) {
+          listener.onSegmentSplit();
+        } else if (i % sampleFrequency == 0) {
+          listener.onNewTrackPoint(locs[i]);
+        } else if (includeSampledOut) {
+          listener.onSampledOutTrackPoint(locs[i]);
+        }
+      }
+    }
+
+    @Override
+    public boolean hasNext() {
+      return currentIdx < (locs.length - 1);
+    }
+
+    @Override
+    public Location next() {
+      currentIdx++;
+      return locs[currentIdx];
+    }
+
+    @Override
+    public void remove() {
+      throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public long getLocationId() {
+      return startId + currentIdx;
+    }
+
+    @Override
+    public void close() {
+      // Do nothing
+    }
+  }
+
   public void testWaypointListen() {
     Capture<ContentObserver> observerCapture = new Capture<ContentObserver>();
     prefs.edit().putLong("recordingTrack", TRACK_ID)
@@ -249,14 +328,13 @@ public class TrackDataHubTest extends AndroidTestCase {
     listener2.onNewWaypoint(wpt2);
     listener2.onNewWaypointsDone();
 
-    AndroidMock.replay(dataSources, providerUtils, listener1, listener2);
+    replay();
 
     hub.registerTrackDataListener(listener1, EnumSet.of(ListenerDataType.WAYPOINT_UPDATES));
     hub.start();
     hub.registerTrackDataListener(listener2, EnumSet.of(ListenerDataType.WAYPOINT_UPDATES));
 
-    AndroidMock.verify(listener1, listener2, dataSources, providerUtils);
-    AndroidMock.reset(listener1, listener2, dataSources, providerUtils);
+    verifyAndReset();
 
     ContentObserver observer = observerCapture.getValue();
 
@@ -280,12 +358,11 @@ public class TrackDataHubTest extends AndroidTestCase {
     listener1.onNewWaypointsDone();
     listener2.onNewWaypointsDone();
 
-    AndroidMock.replay(listener1, listener2, dataSources, providerUtils);
+    replay();
 
     observer.onChange(false);
 
-    AndroidMock.verify(listener1, listener2, dataSources, providerUtils);
-    AndroidMock.reset(listener1, listener2, dataSources, providerUtils);
+    verifyAndReset();
 
     // Unregister one, get another update.
     expect(providerUtils.getWaypointsCursor(
@@ -305,32 +382,335 @@ public class TrackDataHubTest extends AndroidTestCase {
     listener2.onNewWaypoint(wpt4);
     listener2.onNewWaypointsDone();
 
-    AndroidMock.replay(listener1, listener2, dataSources, providerUtils);
+    replay();
 
     hub.unregisterTrackDataListener(listener1);
 
     observer.onChange(false);
 
-    AndroidMock.verify(listener1, listener2, dataSources, providerUtils);
-    AndroidMock.reset(listener1, listener2, dataSources, providerUtils);
+    verifyAndReset();
 
     // Unregister the other, expect internal unregistration
     dataSources.unregisterContentObserver(observer);
 
-    AndroidMock.replay(listener1, listener2, dataSources, providerUtils);
+    replay();
 
     hub.unregisterTrackDataListener(listener2);
     observer.onChange(false);
 
-    AndroidMock.verify(listener1, listener2, dataSources, providerUtils);
+    verifyAndReset();
   }
 
   public void testPointsListen() {
-    // TODO
+    Capture<ContentObserver> observerCapture = new Capture<ContentObserver>();
+    prefs.edit().putLong("recordingTrack", TRACK_ID)
+                .putLong("selectedTrack", TRACK_ID).commit();
+
+    expectStart();
+    dataSources.registerContentObserver(
+        eq(TrackPointsColumns.CONTENT_URI), eq(false), capture(observerCapture));
+
+    FixedSizeLocationIterator locationIterator = new FixedSizeLocationIterator(1, 10, 5);
+    expect(providerUtils.getLocationIterator(
+        eq(TRACK_ID), eq(0L), eq(false), isA(LocationFactory.class)))
+        .andReturn(locationIterator);
+    expect(providerUtils.getLastLocationId(TRACK_ID)).andReturn(10L);
+
+    listener1.clearTrackPoints();
+    locationIterator.expectLocationsDelivered(listener1);
+    listener1.onNewTrackPointsDone();
+
+    replay();
+
+    hub.start();
+    hub.registerTrackDataListener(listener1, EnumSet.of(ListenerDataType.POINT_UPDATES));
+
+    verifyAndReset();
+
+    // Register a second listener - it will get the same points as the previous one
+    locationIterator = new FixedSizeLocationIterator(1, 10, 5);
+    expect(providerUtils.getLocationIterator(
+        eq(TRACK_ID), eq(0L), eq(false), isA(LocationFactory.class)))
+        .andReturn(locationIterator);
+    expect(providerUtils.getLastLocationId(TRACK_ID)).andReturn(10L);
+
+    listener2.clearTrackPoints();
+    locationIterator.expectLocationsDelivered(listener2);
+    listener2.onNewTrackPointsDone();
+
+    replay();
+
+    hub.start();
+    hub.registerTrackDataListener(listener2, EnumSet.of(ListenerDataType.POINT_UPDATES));
+
+    verifyAndReset();
+
+    // Deliver more points - should go to both listeners, without clearing.
+    ContentObserver observer = observerCapture.getValue();
+
+    locationIterator = new FixedSizeLocationIterator(11, 10, 1);
+    expect(providerUtils.getLocationIterator(
+        eq(TRACK_ID), eq(11L), eq(false), isA(LocationFactory.class)))
+        .andReturn(locationIterator);
+    expect(providerUtils.getLastLocationId(TRACK_ID)).andReturn(20L);
+
+    locationIterator.expectLocationsDelivered(listener1);
+    locationIterator.expectLocationsDelivered(listener2);
+    listener1.onNewTrackPointsDone();
+    listener2.onNewTrackPointsDone();
+
+    replay();
+
+    observer.onChange(false);
+
+    verifyAndReset();
+
+    // Unregister listener1, switch tracks to ensure data is cleared/reloaded.
+    locationIterator = new FixedSizeLocationIterator(101, 10);
+    expect(providerUtils.getLocationIterator(
+        eq(TRACK_ID + 1), eq(0L), eq(false), isA(LocationFactory.class)))
+        .andReturn(locationIterator);
+    expect(providerUtils.getLastLocationId(TRACK_ID + 1)).andReturn(110L);
+
+    listener2.clearTrackPoints();
+    locationIterator.expectLocationsDelivered(listener2);
+    listener2.onNewTrackPointsDone();
+
+    replay();
+
+    hub.unregisterTrackDataListener(listener1);
+    hub.loadTrack(TRACK_ID + 1);
+
+    verifyAndReset();
   }
 
-  public void testPointsListen_resample() {
-    // TODO
+  public void testPointsListen_beforeStart() {
+    
+  }
+
+  public void testPointsListen_reRegister() {
+    Capture<ContentObserver> observerCapture = new Capture<ContentObserver>();
+    prefs.edit().putLong("recordingTrack", TRACK_ID)
+                .putLong("selectedTrack", TRACK_ID).commit();
+
+    expectStart();
+    dataSources.registerContentObserver(
+        eq(TrackPointsColumns.CONTENT_URI), eq(false), capture(observerCapture));
+
+    FixedSizeLocationIterator locationIterator = new FixedSizeLocationIterator(1, 10, 5);
+    expect(providerUtils.getLocationIterator(
+        eq(TRACK_ID), eq(0L), eq(false), isA(LocationFactory.class)))
+        .andReturn(locationIterator);
+    expect(providerUtils.getLastLocationId(TRACK_ID)).andReturn(10L);
+
+    listener1.clearTrackPoints();
+    locationIterator.expectLocationsDelivered(listener1);
+    listener1.onNewTrackPointsDone();
+
+    replay();
+
+    hub.start();
+    hub.registerTrackDataListener(listener1, EnumSet.of(ListenerDataType.POINT_UPDATES));
+
+    verifyAndReset();
+
+    // Unregister
+    ContentObserver observer = observerCapture.getValue();
+    dataSources.unregisterContentObserver(observer);
+
+    replay();
+
+    hub.unregisterTrackDataListener(listener1);
+
+    verifyAndReset();
+
+    // Register again, except only points since unregistered.
+    dataSources.registerContentObserver(
+        eq(TrackPointsColumns.CONTENT_URI), eq(false), capture(observerCapture));
+
+    locationIterator = new FixedSizeLocationIterator(11, 10);
+    expect(providerUtils.getLocationIterator(
+        eq(TRACK_ID), eq(11L), eq(false), isA(LocationFactory.class)))
+        .andReturn(locationIterator);
+    expect(providerUtils.getLastLocationId(TRACK_ID)).andReturn(20L);
+
+    locationIterator.expectLocationsDelivered(listener1);
+    listener1.onNewTrackPointsDone();
+
+    replay();
+
+    hub.registerTrackDataListener(listener1, EnumSet.of(ListenerDataType.POINT_UPDATES));
+
+    verifyAndReset();
+
+    // Deliver more points - should still be incremental.
+    locationIterator = new FixedSizeLocationIterator(21, 10, 1);
+    expect(providerUtils.getLocationIterator(
+        eq(TRACK_ID), eq(21L), eq(false), isA(LocationFactory.class)))
+        .andReturn(locationIterator);
+    expect(providerUtils.getLastLocationId(TRACK_ID)).andReturn(30L);
+
+    locationIterator.expectLocationsDelivered(listener1);
+    listener1.onNewTrackPointsDone();
+
+    replay();
+
+    observer.onChange(false);
+
+    verifyAndReset();
+  }
+
+  public void testPointsListen_reRegisterTrackChanged() {
+    Capture<ContentObserver> observerCapture = new Capture<ContentObserver>();
+    prefs.edit().putLong("recordingTrack", TRACK_ID)
+                .putLong("selectedTrack", TRACK_ID).commit();
+
+    expectStart();
+    dataSources.registerContentObserver(
+        eq(TrackPointsColumns.CONTENT_URI), eq(false), capture(observerCapture));
+
+    FixedSizeLocationIterator locationIterator = new FixedSizeLocationIterator(1, 10, 5);
+    expect(providerUtils.getLocationIterator(
+        eq(TRACK_ID), eq(0L), eq(false), isA(LocationFactory.class)))
+        .andReturn(locationIterator);
+    expect(providerUtils.getLastLocationId(TRACK_ID)).andReturn(10L);
+
+    listener1.clearTrackPoints();
+    locationIterator.expectLocationsDelivered(listener1);
+    listener1.onNewTrackPointsDone();
+
+    replay();
+
+    hub.start();
+    hub.registerTrackDataListener(listener1, EnumSet.of(ListenerDataType.POINT_UPDATES));
+
+    verifyAndReset();
+
+    // Unregister
+    ContentObserver observer = observerCapture.getValue();
+    dataSources.unregisterContentObserver(observer);
+
+    replay();
+
+    hub.unregisterTrackDataListener(listener1);
+
+    verifyAndReset();
+
+    // Register again after track changed, expect all points.
+    dataSources.registerContentObserver(
+        eq(TrackPointsColumns.CONTENT_URI), eq(false), capture(observerCapture));
+
+    locationIterator = new FixedSizeLocationIterator(1, 10);
+    expect(providerUtils.getLocationIterator(
+        eq(TRACK_ID + 1), eq(0L), eq(false), isA(LocationFactory.class)))
+        .andReturn(locationIterator);
+    expect(providerUtils.getLastLocationId(TRACK_ID + 1)).andReturn(10L);
+
+    listener1.clearTrackPoints();
+    locationIterator.expectLocationsDelivered(listener1);
+    listener1.onNewTrackPointsDone();
+
+    replay();
+
+    hub.loadTrack(TRACK_ID + 1);
+    hub.registerTrackDataListener(listener1, EnumSet.of(ListenerDataType.POINT_UPDATES));
+
+    verifyAndReset();
+  }
+
+  public void testPointsListen_largeTrackSampling() {
+    Capture<ContentObserver> observerCapture = new Capture<ContentObserver>();
+    prefs.edit().putLong("recordingTrack", TRACK_ID)
+                .putLong("selectedTrack", TRACK_ID).commit();
+
+    expectStart();
+    dataSources.registerContentObserver(
+        eq(TrackPointsColumns.CONTENT_URI), eq(false), capture(observerCapture));
+
+    FixedSizeLocationIterator locationIterator = new FixedSizeLocationIterator(1, 20000, 4, 253, 700, 712);
+    expect(providerUtils.getLocationIterator(
+        eq(TRACK_ID), eq(0L), eq(false), isA(LocationFactory.class)))
+        .andReturn(locationIterator);
+    expect(providerUtils.getLastLocationId(TRACK_ID)).andReturn(20000L);
+
+    listener1.clearTrackPoints();
+    listener2.clearTrackPoints();
+    locationIterator.expectSampledLocationsDelivered(listener1, 4, false);
+    locationIterator.expectSampledLocationsDelivered(listener2, 4, true);
+    listener1.onNewTrackPointsDone();
+    listener2.onNewTrackPointsDone();
+
+    replay();
+
+    hub.registerTrackDataListener(listener1,
+        EnumSet.of(ListenerDataType.POINT_UPDATES));
+    hub.registerTrackDataListener(listener2,
+        EnumSet.of(ListenerDataType.POINT_UPDATES, ListenerDataType.SAMPLED_OUT_POINT_UPDATES));
+    hub.start();
+
+    verifyAndReset();
+  }
+
+  public void testPointsListen_resampling() {
+    Capture<ContentObserver> observerCapture = new Capture<ContentObserver>();
+    prefs.edit().putLong("recordingTrack", TRACK_ID)
+                .putLong("selectedTrack", TRACK_ID).commit();
+
+    expectStart();
+    dataSources.registerContentObserver(
+        eq(TrackPointsColumns.CONTENT_URI), eq(false), capture(observerCapture));
+
+    // Deliver 3000 points (no sampling happens)
+    FixedSizeLocationIterator locationIterator = new FixedSizeLocationIterator(1, 3000, 5);
+    expect(providerUtils.getLocationIterator(
+        eq(TRACK_ID), eq(0L), eq(false), isA(LocationFactory.class)))
+        .andReturn(locationIterator);
+    expect(providerUtils.getLastLocationId(TRACK_ID)).andReturn(3000L);
+
+    listener1.clearTrackPoints();
+    locationIterator.expectLocationsDelivered(listener1);
+    listener1.onNewTrackPointsDone();
+
+    replay();
+
+    hub.start();
+    hub.registerTrackDataListener(listener1, EnumSet.of(ListenerDataType.POINT_UPDATES));
+
+    verifyAndReset();
+
+    // Now deliver 3000 more (incrementally sampled)
+    ContentObserver observer = observerCapture.getValue();
+    locationIterator = new FixedSizeLocationIterator(3001, 3000);
+    expect(providerUtils.getLocationIterator(
+        eq(TRACK_ID), eq(3001L), eq(false), isA(LocationFactory.class)))
+        .andReturn(locationIterator);
+    expect(providerUtils.getLastLocationId(TRACK_ID)).andReturn(6000L);
+
+    locationIterator.expectSampledLocationsDelivered(listener1, 2, false);
+    listener1.onNewTrackPointsDone();
+
+    replay();
+
+    observer.onChange(false);
+
+    verifyAndReset();
+
+    // Now another 3000 (triggers resampling)
+    locationIterator = new FixedSizeLocationIterator(1, 9000);
+    expect(providerUtils.getLocationIterator(
+        eq(TRACK_ID), eq(0L), eq(false), isA(LocationFactory.class)))
+        .andReturn(locationIterator);
+    expect(providerUtils.getLastLocationId(TRACK_ID)).andReturn(9000L);
+
+    listener1.clearTrackPoints();
+    locationIterator.expectSampledLocationsDelivered(listener1, 2, false);
+    listener1.onNewTrackPointsDone();
+
+    replay();
+
+    observer.onChange(false);
+
+    verifyAndReset();
   }
 
   public void testLocationListen() {
@@ -338,6 +718,8 @@ public class TrackDataHubTest extends AndroidTestCase {
   }
 
   public void testCompassListen() throws Exception {
+    AndroidMock.resetToDefault(listener1);
+
     Sensor compass = newSensor();
     expect(dataSources.getSensor(Sensor.TYPE_ORIENTATION)).andReturn(compass);
     Capture<SensorEventListener> listenerCapture = new Capture<SensorEventListener>();
@@ -359,7 +741,7 @@ public class TrackDataHubTest extends AndroidTestCase {
     listener1.onProviderStateChange(isA(ProviderState.class));
     AndroidMock.expectLastCall().anyTimes();
 
-    AndroidMock.replay(dataSources, providerUtils, listener1);
+    replay();
 
     hub.registerTrackDataListener(listener1,
         EnumSet.of(ListenerDataType.COMPASS_UPDATES, ListenerDataType.LOCATION_UPDATES));
@@ -370,8 +752,7 @@ public class TrackDataHubTest extends AndroidTestCase {
     event.values[0] = 42.0f;
     sensorListener.onSensorChanged(event);
 
-    AndroidMock.verify(dataSources, providerUtils, listener1);
-    AndroidMock.reset(dataSources, providerUtils, listener1);
+    verifyAndReset();
 
     // Expect the heading update to include declination.
     listener1.onCurrentHeadingChanged(52.0);
@@ -382,7 +763,7 @@ public class TrackDataHubTest extends AndroidTestCase {
     listener1.onCurrentLocationChanged(isA(Location.class));
     AndroidMock.expectLastCall().anyTimes();
 
-    AndroidMock.replay(dataSources, providerUtils, listener1);
+    replay();
 
     // Now try injecting a location update, triggering a declination update.
     Location location = new Location("gps");
@@ -393,19 +774,18 @@ public class TrackDataHubTest extends AndroidTestCase {
     locationListener.onLocationChanged(location);
     sensorListener.onSensorChanged(event);
 
-    AndroidMock.verify(dataSources, providerUtils, listener1);
-    AndroidMock.reset(dataSources, providerUtils, listener1);
+    verifyAndReset();
 
     listener1.onCurrentHeadingChanged(52.0);
 
-    AndroidMock.replay(dataSources, providerUtils, listener1);
+    replay();
 
     // Now try changing the known declination - it should still return the old declination, since
     // updates only happen sparsely.
     declination = 20.0f;
     sensorListener.onSensorChanged(event);
 
-    AndroidMock.verify(dataSources, providerUtils, listener1);
+    verifyAndReset();
   }
 
   private Sensor newSensor() throws Exception {
@@ -438,19 +818,18 @@ public class TrackDataHubTest extends AndroidTestCase {
     expect(listener1.onReportSpeedChanged(true)).andReturn(false);
     expect(listener2.onReportSpeedChanged(true)).andReturn(false);
 
-    AndroidMock.replay(dataSources, providerUtils, listener1, listener2);
+    replay();
 
     hub.registerTrackDataListener(listener1, EnumSet.of(ListenerDataType.DISPLAY_PREFERENCES));
     hub.start();
     hub.registerTrackDataListener(listener2, EnumSet.of(ListenerDataType.DISPLAY_PREFERENCES));
 
-    AndroidMock.verify(dataSources, providerUtils, listener1, listener2);
-    AndroidMock.reset(dataSources, providerUtils, listener1, listener2);
+    verifyAndReset();
 
     expect(listener1.onReportSpeedChanged(false)).andReturn(false);
     expect(listener2.onReportSpeedChanged(false)).andReturn(false);
 
-    AndroidMock.replay(dataSources, providerUtils, listener1, listener2);
+    replay();
 
     prefs.edit()
         .putBoolean(speedKey, false)
@@ -464,29 +843,26 @@ public class TrackDataHubTest extends AndroidTestCase {
     expect(listener1.onUnitsChanged(false)).andReturn(false);
     expect(listener2.onUnitsChanged(false)).andReturn(false);
 
-    AndroidMock.replay(dataSources, providerUtils, listener1, listener2);
+    replay();
 
     prefs.edit()
         .putBoolean(metricUnitsKey, false)
         .commit();
     listener.onSharedPreferenceChanged(prefs, metricUnitsKey);
 
-    AndroidMock.verify(dataSources, providerUtils, listener1, listener2);
-  }
-
-  public void testFullListener() {
-    // TODO: test loading a track, getting updates, loading another, unloading
-  }
-
-  public void testRelisten() {
-    // TODO: test re-registering an old points listener
-  }
-
-  public void testRelisten_changed() {
-    // TODO: test register, get points, unregister, change track, register
+    verifyAndReset();
   }
 
   private void expectStart() {
     dataSources.registerOnSharedPreferenceChangeListener(capture(preferenceListenerCapture));
   }
+
+  private void replay() {
+    AndroidMock.replay(dataSources, providerUtils, listener1, listener2);
+  }
+
+  private void verifyAndReset() {
+    AndroidMock.verify(listener1, listener2, dataSources, providerUtils);
+    AndroidMock.reset(listener1, listener2, dataSources, providerUtils);
+  }
 }