Polish codes and add test cases

10 files changed, 580 insertions, 541 deletions

diff --git a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/MapClickEvent.java b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/MapClickEvent.java
index 324aea16ca..91e8c0f6f3 100644
--- a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/MapClickEvent.java
+++ b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/MapClickEvent.java
@@ -1,86 +1,85 @@
 package com.mapbox.mapboxsdk.module.telemetry;
 
-import android.content.Context;
+import android.annotation.SuppressLint;
 import android.os.Parcel;
-import android.os.Parcelable;
 
-import com.google.gson.annotations.SerializedName;
 import com.mapbox.android.telemetry.Event;
-import com.mapbox.android.telemetry.TelemetryUtils;
 
-class MapClickEvent extends Event implements Parcelable {
-  private static final String MAP_CLICK = "map.click";
-
-  @SerializedName("event")
-  private final String event;
-  @SerializedName("created")
-  private String created;
-  @SerializedName("gesture")
+/**
+ * Event that represents users' gestures on map, for the details of gestures,
+ * please refer to {@link com.mapbox.mapboxsdk.constants.TelemetryConstants}
+ */
+@SuppressLint("ParcelCreator")
+class MapClickEvent extends Event {
+  private final String event = "map.click";
+  private final String created;
   private final String gesture;
-  @SerializedName("lat")
-  private double latitude;
-  @SerializedName("lng")
-  private double longitude;
-  @SerializedName("zoom")
-  private double zoom;
-  @SerializedName("orientation")
-  private String orientation = null;
-  @SerializedName("batteryLevel")
-  private Integer batteryLevel;
-  @SerializedName("pluggedIn")
-  private Boolean pluggedIn;
-  @SerializedName("carrier")
-  private String carrier = null;
-  @SerializedName("cellularNetworkType")
-  private String cellularNetworkType;
-  @SerializedName("wifi")
-  private Boolean wifi = null;
-
-  MapClickEvent(MapState mapState) {
-    this.event = MAP_CLICK;
+  private final String cellularNetworkType;
+  private final String carrier;
+  private final String orientation;
+  private final double latitude;
+  private final double longitude;
+  private final double zoom;
+  private final int batteryLevel;
+  private final boolean pluggedIn;
+  private final boolean wifi;
+
+  MapClickEvent(PhoneState phoneState, MapState mapState) {
     this.gesture = mapState.getGesture();
     this.latitude = mapState.getLatitude();
     this.longitude = mapState.getLongitude();
     this.zoom = mapState.getZoom();
-    this.created = TelemetryUtils.obtainCurrentDate();
-    this.batteryLevel = 0;
-    this.pluggedIn = false;
-    this.cellularNetworkType = "";
+    this.created = phoneState.getCreated();
+    this.batteryLevel = phoneState.getBatteryLevel();
+    this.pluggedIn = phoneState.isPluggedIn();
+    this.cellularNetworkType = phoneState.getCellularNetworkType();
+    this.orientation = phoneState.getOrientation();
+    this.carrier = phoneState.getCarrier();
+    this.wifi = phoneState.isWifi();
+  }
+
+  String getCreated() {
+    return created;
+  }
+
+  String getGesture() {
+    return gesture;
+  }
+
+  String getCellularNetworkType() {
+    return cellularNetworkType;
   }
 
-  MapClickEvent setDeviceInfo(Context context) {
-    this.batteryLevel = TelemetryUtils.obtainBatteryLevel(context);
-    this.pluggedIn = TelemetryUtils.isPluggedIn(context);
-    this.cellularNetworkType = TelemetryUtils.obtainCellularNetworkType(context);
-    return this;
+  String getCarrier() {
+    return carrier;
   }
 
-  void setOrientation(String orientation) {
-    this.orientation = orientation;
+  String getOrientation() {
+    return orientation;
   }
 
-  void setCarrier(String carrier) {
-    this.carrier = carrier;
+  double getLatitude() {
+    return latitude;
   }
 
-  void setWifi(boolean wifi) {
-    this.wifi = wifi;
+  double getLongitude() {
+    return longitude;
   }
 
-  private MapClickEvent(Parcel in) {
-    event = in.readString();
-    created = in.readString();
-    gesture = in.readString();
-    latitude = in.readDouble();
-    longitude = in.readDouble();
-    zoom = in.readDouble();
-    orientation = in.readString();
-    batteryLevel = in.readInt();
-    pluggedIn = in.readByte() != 0x00;
-    carrier = in.readString();
-    cellularNetworkType = in.readString();
-    byte wifiVal = in.readByte();
-    wifi = wifiVal == 0x02 ? null : wifiVal != 0x00;
+  double getZoom() {
+    return zoom;
+  }
+
+  int getBatteryLevel() {
+    return batteryLevel;
+  }
+
+  boolean isPluggedIn() {
+    return pluggedIn;
+  }
+
+  boolean isWifi() {
+    return wifi;
   }
 
   @Override
@@ -90,33 +89,5 @@ class MapClickEvent extends Event implements Parcelable {
 
   @Override
   public void writeToParcel(Parcel dest, int flags) {
-    dest.writeString(event);
-    dest.writeString(created);
-    dest.writeString(gesture);
-    dest.writeDouble(latitude);
-    dest.writeDouble(longitude);
-    dest.writeDouble(zoom);
-    dest.writeString(orientation);
-    dest.writeInt(batteryLevel);
-    dest.writeByte((byte) (pluggedIn ? 0x01 : 0x00));
-    dest.writeString(carrier);
-    dest.writeString(cellularNetworkType);
-    if (wifi == null) {
-      dest.writeByte((byte) (0x02));
-    } else {
-      dest.writeByte((byte) (wifi ? 0x01 : 0x00));
-    }
   }
-
-  public static final Creator<MapClickEvent> CREATOR = new Creator<MapClickEvent>() {
-    @Override
-    public MapClickEvent createFromParcel(Parcel in) {
-      return new MapClickEvent(in);
-    }
-
-    @Override
-    public MapClickEvent[] newArray(int size) {
-      return new MapClickEvent[size];
-    }
-  };
 }
diff --git a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/MapDragendEvent.java b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/MapDragendEvent.java
index 830617fb72..36c75112f1 100644
--- a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/MapDragendEvent.java
+++ b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/MapDragendEvent.java
@@ -1,82 +1,78 @@
 package com.mapbox.mapboxsdk.module.telemetry;
 
-import android.content.Context;
+import android.annotation.SuppressLint;
 import android.os.Parcel;
-import android.os.Parcelable;
 
-import com.google.gson.annotations.SerializedName;
 import com.mapbox.android.telemetry.Event;
-import com.mapbox.android.telemetry.TelemetryUtils;
-
-class MapDragendEvent extends Event implements Parcelable {
-  private static final String MAP_DRAGEND = "map.dragend";
-
-  @SerializedName("event")
-  private final String event;
-  @SerializedName("created")
-  private String created;
-  @SerializedName("lat")
-  private double latitude;
-  @SerializedName("lng")
-  private double longitude;
-  @SerializedName("zoom")
-  private double zoom;
-  @SerializedName("orientation")
-  private String orientation = null;
-  @SerializedName("batteryLevel")
-  private int batteryLevel;
-  @SerializedName("pluggedIn")
-  private Boolean pluggedIn;
-  @SerializedName("carrier")
-  private String carrier = null;
-  @SerializedName("cellularNetworkType")
-  private String cellularNetworkType;
-  @SerializedName("wifi")
-  private Boolean wifi = null;
-
-  MapDragendEvent(MapState mapState) {
-    this.event = MAP_DRAGEND;
-    this.latitude = mapState.getLatitude();
-    this.longitude = mapState.getLongitude();
+
+/**
+ * When user drag map should send this event.
+ */
+@SuppressLint("ParcelCreator")
+class MapDragendEvent extends Event {
+  private final String event = "map.dragend";
+  private final String created;
+  private final String orientation;
+  private final String carrier;
+  private final String cellularNetworkType;
+  private final int batteryLevel;
+  private final double lat;
+  private final double lng;
+  private final double zoom;
+  private final boolean pluggedIn;
+  private final boolean wifi;
+
+  MapDragendEvent(PhoneState phoneState, MapState mapState) {
+    this.lat = mapState.getLatitude();
+    this.lng = mapState.getLongitude();
     this.zoom = mapState.getZoom();
-    this.created = TelemetryUtils.obtainCurrentDate();
-    this.batteryLevel = 0;
-    this.pluggedIn = false;
-    this.cellularNetworkType = "";
+    this.created = phoneState.getCreated();
+    this.batteryLevel = phoneState.getBatteryLevel();
+    this.pluggedIn = phoneState.isPluggedIn();
+    this.cellularNetworkType = phoneState.getCellularNetworkType();
+    this.wifi = phoneState.isWifi();
+    this.orientation = phoneState.getOrientation();
+    this.carrier = phoneState.getCarrier();
+  }
+
+  String getCreated() {
+    return created;
   }
 
-  MapDragendEvent setDeviceInfo(Context context) {
-    this.batteryLevel = TelemetryUtils.obtainBatteryLevel(context);
-    this.pluggedIn = TelemetryUtils.isPluggedIn(context);
-    this.cellularNetworkType = TelemetryUtils.obtainCellularNetworkType(context);
-    return this;
+  String getOrientation() {
+    return orientation;
   }
 
-  void setOrientation(String orientation) {
-    this.orientation = orientation;
+  String getCarrier() {
+    return carrier;
   }
 
-  void setCarrier(String carrier) {
-    this.carrier = carrier;
+  String getCellularNetworkType() {
+    return cellularNetworkType;
   }
 
-  void setWifi(boolean wifi) {
-    this.wifi = wifi;
+  int getBatteryLevel() {
+    return batteryLevel;
   }
 
-  private MapDragendEvent(Parcel in) {
-    event = in.readString();
-    created = in.readString();
-    latitude = in.readDouble();
-    longitude = in.readDouble();
-    zoom = in.readDouble();
-    orientation = in.readString();
-    batteryLevel = in.readInt();
-    pluggedIn = in.readByte() != 0x00;
-    carrier = in.readString();
-    cellularNetworkType = in.readString();
-    byte wifiVal = in.readByte();
-    wifi = wifiVal == 0x02 ? null : wifiVal != 0x00;
+  double getLat() {
+    return lat;
+  }
+
+  double getLng() {
+    return lng;
+  }
+
+  double getZoom() {
+    return zoom;
+  }
+
+  boolean isPluggedIn() {
+    return pluggedIn;
+  }
+
+  boolean isWifi() {
+    return wifi;
   }
 
   @Override
@@ -86,32 +82,5 @@ class MapDragendEvent extends Event implements Parcelable {
 
   @Override
   public void writeToParcel(Parcel dest, int flags) {
-    dest.writeString(event);
-    dest.writeString(created);
-    dest.writeDouble(latitude);
-    dest.writeDouble(longitude);
-    dest.writeDouble(zoom);
-    dest.writeString(orientation);
-    dest.writeInt(batteryLevel);
-    dest.writeByte((byte) (pluggedIn ? 0x01 : 0x00));
-    dest.writeString(carrier);
-    dest.writeString(cellularNetworkType);
-    if (wifi == null) {
-      dest.writeByte((byte) (0x02));
-    } else {
-      dest.writeByte((byte) (wifi ? 0x01 : 0x00));
-    }
   }
-
-  public static final Creator<MapDragendEvent> CREATOR = new Creator<MapDragendEvent>() {
-    @Override
-    public MapDragendEvent createFromParcel(Parcel in) {
-      return new MapDragendEvent(in);
-    }
-
-    @Override
-    public MapDragendEvent[] newArray(int size) {
-      return new MapDragendEvent[size];
-    }
-  };
 }
\ No newline at end of file
diff --git a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/MapEventFactory.java b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/MapEventFactory.java
index 05d0cc0615..e041f2ae31 100644
--- a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/MapEventFactory.java
+++ b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/MapEventFactory.java
@@ -1,141 +1,50 @@
 package com.mapbox.mapboxsdk.module.telemetry;
 
-import android.content.Context;
-import android.content.res.Configuration;
-import android.net.wifi.WifiInfo;
-import android.net.wifi.WifiManager;
 import android.support.annotation.NonNull;
-import android.telephony.TelephonyManager;
-import android.text.TextUtils;
-import android.util.DisplayMetrics;
-import android.view.WindowManager;
 
-import com.mapbox.android.telemetry.Event;
 import com.mapbox.android.telemetry.TelemetryUtils;
 
-import java.util.HashMap;
-import java.util.Map;
+class MapEventFactory {
 
-public class MapEventFactory {
-  private static final String LANDSCAPE = "Landscape";
-  private static final String PORTRAIT = "Portrait";
-  private static final String NO_CARRIER = "EMPTY_CARRIER";
-  private static final int NO_NETWORK = -1;
-
-  private static final Map<Integer, String> ORIENTATIONS = new HashMap<Integer, String>() {
-    {
-      put(Configuration.ORIENTATION_LANDSCAPE, LANDSCAPE);
-      put(Configuration.ORIENTATION_PORTRAIT, PORTRAIT);
-    }
-  };
-
-  private final Context appContext;
-
-  MapEventFactory(Context appContext) {
-    this.appContext = appContext;
-  }
-
-  Event buildMapLoadEvent() {
+  static MapLoadEvent buildMapLoadEvent(@NonNull PhoneState phoneState) {
     String userId = TelemetryUtils.retrieveVendorId();
-    MapLoadEvent mapLoadEvent = new MapLoadEvent(userId).setDeviceInfo(appContext);
-    mapLoadEvent.setOrientation(obtainOrientation(appContext));
-    mapLoadEvent.setAccessibilityFontScale(obtainAccessibilityFontScaleSize(appContext));
-    mapLoadEvent.setCarrier(obtainCellularCarrier(appContext));
-    mapLoadEvent.setResolution(obtainDisplayDensity(appContext));
-    mapLoadEvent.setWifi(isConnectedToWifi(appContext));
-    return mapLoadEvent;
+    return new MapLoadEvent(userId, phoneState);
   }
 
-  Event buildOfflineDownloadStartEvent(String shapeForOfflineRegion,
-                                       Double minZoom, Double maxZoom,
-                                       String styleURL) {
+  static OfflineDownloadStartEvent buildOfflineDownloadStartEvent(PhoneState phoneState,
+                                                                  String shapeForOfflineRegion,
+                                                                  Double minZoom, Double maxZoom,
+                                                                  String styleURL) {
 
     OfflineDownloadStartEvent offlineEvent =
-      new OfflineDownloadStartEvent(shapeForOfflineRegion, minZoom, maxZoom);
+      new OfflineDownloadStartEvent(phoneState, shapeForOfflineRegion, minZoom, maxZoom);
     offlineEvent.setStyleURL(styleURL);
     return offlineEvent;
   }
 
-  public Event buildOfflineDownloadCompleteEvent(String shapeForOfflineRegion,
-                                                 Double minZoom, Double maxZoom,
-                                                 String styleURL,
-                                                 Long sizeOfResourcesCompleted,
-                                                 Long numberOfTilesCompleted,
-                                                 String state) {
+  static OfflineDownloadEndEvent buildOfflineDownloadCompleteEvent(PhoneState phoneState,
+                                                                   String shapeForOfflineRegion,
+                                                                   Double minZoom, Double maxZoom,
+                                                                   String styleURL,
+                                                                   Long sizeOfResourcesCompleted,
+                                                                   Long numberOfTilesCompleted,
+                                                                   String state) {
 
     OfflineDownloadEndEvent offlineEvent =
-      new OfflineDownloadEndEvent(shapeForOfflineRegion, minZoom, maxZoom);
+      new OfflineDownloadEndEvent(phoneState, shapeForOfflineRegion, minZoom, maxZoom);
     offlineEvent.setStyleURL(styleURL);
     offlineEvent.setSizeOfResourcesCompleted(sizeOfResourcesCompleted);
     offlineEvent.setNumberOfTilesCompleted(numberOfTilesCompleted);
+    offlineEvent.setState(state);
     return offlineEvent;
   }
 
-  MapClickEvent buildMapClickEvent(@NonNull MapState mapState) {
-    MapClickEvent mapClickEvent = new MapClickEvent(mapState).setDeviceInfo(appContext);
-    mapClickEvent.setOrientation(obtainOrientation(appContext));
-    mapClickEvent.setCarrier(obtainCellularCarrier(appContext));
-    mapClickEvent.setWifi(isConnectedToWifi(appContext));
-
-    return mapClickEvent;
-  }
-
-  MapDragendEvent buildMapDragendEvent(@NonNull MapState mapState) {
-    MapDragendEvent mapDragendEvent = new MapDragendEvent(mapState).setDeviceInfo(appContext);
-    mapDragendEvent.setOrientation(obtainOrientation(appContext));
-    mapDragendEvent.setCarrier(obtainCellularCarrier(appContext));
-    mapDragendEvent.setWifi(isConnectedToWifi(appContext));
-
-    return mapDragendEvent;
-  }
-
-  private String obtainOrientation(Context context) {
-    return ORIENTATIONS.get(context.getResources().getConfiguration().orientation);
-  }
-
-  private float obtainAccessibilityFontScaleSize(Context context) {
-    return context.getResources().getConfiguration().fontScale;
-  }
-
-  private String obtainCellularCarrier(Context context) {
-    TelephonyManager manager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
-    if (manager == null) {
-      return NO_CARRIER;
-    }
-    String carrierName = manager.getNetworkOperatorName();
-
-    if (TextUtils.isEmpty(carrierName)) {
-      return NO_CARRIER;
-    }
-
-    return carrierName;
-  }
-
-  private float obtainDisplayDensity(Context context) {
-    DisplayMetrics displayMetrics = new DisplayMetrics();
-    ((WindowManager) context.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay().getMetrics(displayMetrics);
-
-    return displayMetrics.density;
-  }
-
-  private boolean isConnectedToWifi(Context context) {
-    try {
-      WifiManager wifiMgr = (WifiManager) context.getApplicationContext().getSystemService(Context.WIFI_SERVICE);
-      //noinspection MissingPermission
-      WifiInfo wifiInfo = wifiMgr.getConnectionInfo();
-
-      return isWifiConnected(wifiMgr, wifiInfo);
-    } catch (Exception exception) {
-      return false;
-    }
-  }
-
-  private boolean isWifiConnected(WifiManager wifiMgr, WifiInfo wifiInfo) {
-    return wifiMgr.isWifiEnabled() && networkConnected(wifiInfo);
+  static MapClickEvent buildMapClickEvent(@NonNull PhoneState phoneState, @NonNull MapState mapState) {
+    return new MapClickEvent(phoneState, mapState);
   }
 
-  private boolean networkConnected(WifiInfo wifiInfo) {
-    return wifiInfo.getNetworkId() != NO_NETWORK;
+  static MapDragendEvent buildMapDragendEvent(@NonNull PhoneState phoneState, @NonNull MapState mapState) {
+    return new MapDragendEvent(phoneState, mapState);
   }
 
 }
diff --git a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/MapLoadEvent.java b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/MapLoadEvent.java
index 132b620086..e0a7f17e01 100644
--- a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/MapLoadEvent.java
+++ b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/MapLoadEvent.java
@@ -1,112 +1,101 @@
 package com.mapbox.mapboxsdk.module.telemetry;
 
-import android.content.Context;
+import android.annotation.SuppressLint;
 import android.os.Build;
 import android.os.Parcel;
-import android.os.Parcelable;
 
-import com.google.gson.annotations.SerializedName;
 import com.mapbox.android.telemetry.Event;
-import com.mapbox.android.telemetry.TelemetryUtils;
-
-class MapLoadEvent extends Event implements Parcelable {
-  private static final String MAP_LOAD = "map.load";
-  private static final String OPERATING_SYSTEM = "Android - " + Build.VERSION.RELEASE;
-
-  @SerializedName("event")
-  private final String event;
-  @SerializedName("created")
-  private String created;
-  @SerializedName("userId")
-  private String userId;
-  @SerializedName("model")
-  private String model = null;
-  @SerializedName("operatingSystem")
-  private String operatingSystem = null;
-  @SerializedName("resolution")
-  private Float resolution = null;
-  @SerializedName("accessibilityFontScale")
-  private Float accessibilityFontScale = null;
-  @SerializedName("orientation")
-  private String orientation = null;
-  @SerializedName("batteryLevel")
-  private Integer batteryLevel;
-  @SerializedName("pluggedIn")
-  private Boolean pluggedIn;
-  @SerializedName("carrier")
-  private String carrier = null;
-  @SerializedName("cellularNetworkType")
-  private String cellularNetworkType;
-  @SerializedName("wifi")
-  private Boolean wifi = null;
-  @SerializedName("sdkIdentifier")
-  private String sdkIdentifier = null;
-  @SerializedName("sdkVersion")
-  private String sdkVersion = null;
-
-  MapLoadEvent(String userId) {
-    this.event = MAP_LOAD;
-    this.model = Build.MODEL;
-    this.operatingSystem = OPERATING_SYSTEM;
-    this.created = TelemetryUtils.obtainCurrentDate();
+import com.mapbox.mapboxsdk.BuildConfig;
+
+/**
+ * Event will be sent while map is loaded.
+ */
+@SuppressLint("ParcelCreator")
+class MapLoadEvent extends Event {
+  private final String event = "map.load";
+  private final String operatingSystem = "Android - " + Build.VERSION.RELEASE;
+  private final String sdkIdentifier = BuildConfig.MAPBOX_SDK_IDENTIFIER;
+  private final String sdkVersion = BuildConfig.MAPBOX_SDK_VERSION;
+  private final String model = Build.MODEL;
+  private final String created;
+  private final String userId;
+  private final String carrier;
+  private final String cellularNetworkType;
+  private final String orientation;
+  private final float resolution;
+  private final float accessibilityFontScale;
+  private final int batteryLevel;
+  private final boolean pluggedIn;
+  private final boolean wifi;
+
+
+  MapLoadEvent(String userId, PhoneState phoneState) {
+    this.created = phoneState.getCreated();
     this.userId = userId;
-    this.batteryLevel = 0;
-    this.pluggedIn = false;
-    this.cellularNetworkType = "";
+    this.batteryLevel = phoneState.getBatteryLevel();
+    this.pluggedIn = phoneState.isPluggedIn();
+    this.cellularNetworkType = phoneState.getCellularNetworkType();
+    this.carrier = phoneState.getCarrier();
+    this.resolution = phoneState.getResolution();
+    this.accessibilityFontScale = phoneState.getAccessibilityFontScale();
+    this.wifi = phoneState.isWifi();
+    this.orientation = phoneState.getOrientation();
   }
 
-  MapLoadEvent setDeviceInfo(Context context) {
-    this.batteryLevel = TelemetryUtils.obtainBatteryLevel(context);
-    this.pluggedIn = TelemetryUtils.isPluggedIn(context);
-    this.cellularNetworkType = TelemetryUtils.obtainCellularNetworkType(context);
-    return this;
+  String getOperatingSystem() {
+    return operatingSystem;
   }
 
-  void setResolution(float resolution) {
-    this.resolution = resolution;
+  String getSdkIdentifier() {
+    return sdkIdentifier;
   }
 
-  void setAccessibilityFontScale(float accessibilityFontScale) {
-    this.accessibilityFontScale = accessibilityFontScale;
+  String getSdkVersion() {
+    return sdkVersion;
   }
 
-  void setOrientation(String orientation) {
-    this.orientation = orientation;
+  String getModel() {
+    return model;
   }
 
-  void setCarrier(String carrier) {
-    this.carrier = carrier;
+  String getCreated() {
+    return created;
   }
 
-  void setWifi(boolean wifi) {
-    this.wifi = wifi;
+  String getUserId() {
+    return userId;
   }
 
-  void setSdkIdentifier(String sdkIdentifier) {
-    this.sdkIdentifier = sdkIdentifier;
+  String getCarrier() {
+    return carrier;
   }
 
-  void setSdkVersion(String sdkVersion) {
-    this.sdkVersion = sdkVersion;
+  String getCellularNetworkType() {
+    return cellularNetworkType;
   }
 
-  private MapLoadEvent(Parcel in) {
-    event = in.readString();
-    created = in.readString();
-    userId = in.readString();
-    model = in.readString();
-    operatingSystem = in.readString();
-    resolution = in.readByte() == 0x00 ? null : in.readFloat();
-    accessibilityFontScale = in.readByte() == 0x00 ? null : in.readFloat();
-    orientation = in.readString();
-    batteryLevel = in.readInt();
-    pluggedIn = in.readByte() != 0x00;
-    carrier = in.readString();
-    cellularNetworkType = in.readString();
-    byte wifiVal = in.readByte();
-    wifi = wifiVal == 0x02 ? null : wifiVal != 0x00;
-    sdkIdentifier = in.readString();
-    sdkVersion = in.readString();
+  String getOrientation() {
+    return orientation;
+  }
+
+  float getResolution() {
+    return resolution;
+  }
+
+  float getAccessibilityFontScale() {
+    return accessibilityFontScale;
+  }
+
+  int getBatteryLevel() {
+    return batteryLevel;
+  }
+
+  boolean isPluggedIn() {
+    return pluggedIn;
+  }
+
+  boolean isWifi() {
+    return wifi;
   }
 
   @Override
@@ -116,47 +105,5 @@ class MapLoadEvent extends Event implements Parcelable {
 
   @Override
   public void writeToParcel(Parcel dest, int flags) {
-    dest.writeString(event);
-    dest.writeString(created);
-    dest.writeString(userId);
-    dest.writeString(model);
-    dest.writeString(operatingSystem);
-    if (resolution == null) {
-      dest.writeByte((byte) (0x00));
-    } else {
-      dest.writeByte((byte) (0x01));
-      dest.writeFloat(resolution);
-    }
-    if (accessibilityFontScale == null) {
-      dest.writeByte((byte) (0x00));
-    } else {
-      dest.writeByte((byte) (0x01));
-      dest.writeFloat(accessibilityFontScale);
-    }
-    dest.writeString(orientation);
-    dest.writeInt(batteryLevel);
-    dest.writeByte((byte) (pluggedIn ? 0x01 : 0x00));
-    dest.writeString(carrier);
-    dest.writeString(cellularNetworkType);
-    if (wifi == null) {
-      dest.writeByte((byte) (0x02));
-    } else {
-      dest.writeByte((byte) (wifi ? 0x01 : 0x00));
-    }
-    dest.writeString(sdkIdentifier);
-    dest.writeString(sdkVersion);
-  }
-
-  @SuppressWarnings("unused")
-  public static final Creator<MapLoadEvent> CREATOR = new Creator<MapLoadEvent>() {
-    @Override
-    public MapLoadEvent createFromParcel(Parcel in) {
-      return new MapLoadEvent(in);
-    }
-
-    @Override
-    public MapLoadEvent[] newArray(int size) {
-      return new MapLoadEvent[size];
-    }
-  };
+  }
 }
diff --git a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/MapState.java b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/MapState.java
index 507ed2906f..d44be49224 100644
--- a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/MapState.java
+++ b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/MapState.java
@@ -6,13 +6,13 @@ public class MapState {
   private double zoom;
   private String gesture;
 
-  public MapState(double latitude, double longitude, double zoom) {
+  MapState(double latitude, double longitude, double zoom) {
     this.latitude = latitude;
     this.longitude = longitude;
     this.zoom = zoom;
   }
 
-  public void setGesture(String gesture) {
+  void setGesture(String gesture) {
     this.gesture = gesture;
   }
 
diff --git a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/OfflineDownloadEndEvent.java b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/OfflineDownloadEndEvent.java
index 71d59eb3bb..cbc79c7b60 100644
--- a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/OfflineDownloadEndEvent.java
+++ b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/OfflineDownloadEndEvent.java
@@ -1,79 +1,78 @@
 package com.mapbox.mapboxsdk.module.telemetry;
 
+import android.annotation.SuppressLint;
 import android.os.Parcel;
-import android.os.Parcelable;
 
-import com.google.gson.annotations.SerializedName;
 import com.mapbox.android.telemetry.Event;
-import com.mapbox.android.telemetry.TelemetryUtils;
 
-
-public class OfflineDownloadEndEvent extends Event implements Parcelable {
-
-  private static final String OFFLINE_DOWNLOAD_COMPLETE = "map.offlineDownload.end";
-
-  @SerializedName("event")
-  private final String event;
-
-  @SerializedName("created")
+/**
+ * Event will be sent while offline download end.
+ */
+@SuppressLint("ParcelCreator")
+public class OfflineDownloadEndEvent extends Event {
+  private final String event = "map.offlineDownload.end";
   private final String created;
-
-  @SerializedName("minZoom")
   private final Double minZoom;
-
-  @SerializedName("maxZoom")
   private final Double maxZoom;
-
-  @SerializedName("shapeForOfflineRegion")
   private final String shapeForOfflineRegion;
-
-  @SerializedName("styleURL")
   private String styleURL;
-
-  @SerializedName("sizeOfResourcesCompleted")
   private Long sizeOfResourcesCompleted;
-
-  @SerializedName("numberOfTilesCompleted")
   private Long numberOfTilesCompleted;
-
-  @SerializedName("state")
   private String state;
 
-  public void setStyleURL(String styleURL) {
+  void setStyleURL(String styleURL) {
     this.styleURL = styleURL;
   }
 
-  public void setSizeOfResourcesCompleted(Long sizeOfResourcesCompleted) {
+  void setSizeOfResourcesCompleted(Long sizeOfResourcesCompleted) {
     this.sizeOfResourcesCompleted = sizeOfResourcesCompleted;
   }
 
-  public void setNumberOfTilesCompleted(Long numberOfTilesCompleted) {
+  void setNumberOfTilesCompleted(Long numberOfTilesCompleted) {
     this.numberOfTilesCompleted = numberOfTilesCompleted;
   }
 
-  public void setState(String state) {
+  void setState(String state) {
     this.state = state;
   }
 
-  OfflineDownloadEndEvent(String shapeForOfflineRegion, Double minZoom, Double maxZoom) {
-    this.event = OFFLINE_DOWNLOAD_COMPLETE;
-    this.created = TelemetryUtils.obtainCurrentDate();
+  OfflineDownloadEndEvent(PhoneState phoneState, String shapeForOfflineRegion, Double minZoom, Double maxZoom) {
+    this.created = phoneState.getCreated();
     this.shapeForOfflineRegion = shapeForOfflineRegion;
     this.minZoom = minZoom;
     this.maxZoom = maxZoom;
   }
 
-  private OfflineDownloadEndEvent(Parcel in) {
-    event = in.readString();
-    created = in.readString();
-    shapeForOfflineRegion = in.readString();
-    minZoom = in.readDouble();
-    maxZoom = in.readDouble();
-    styleURL = in.readString();
-    sizeOfResourcesCompleted = in.readLong();
-    numberOfTilesCompleted = in.readLong();
-    state = in.readString();
+  String getCreated() {
+    return created;
+  }
 
+  Double getMinZoom() {
+    return minZoom;
+  }
+
+  Double getMaxZoom() {
+    return maxZoom;
+  }
+
+  String getShapeForOfflineRegion() {
+    return shapeForOfflineRegion;
+  }
+
+  String getStyleURL() {
+    return styleURL;
+  }
+
+  Long getSizeOfResourcesCompleted() {
+    return sizeOfResourcesCompleted;
+  }
+
+  Long getNumberOfTilesCompleted() {
+    return numberOfTilesCompleted;
+  }
+
+  String getState() {
+    return state;
   }
 
   @Override
@@ -83,26 +82,5 @@ public class OfflineDownloadEndEvent extends Event implements Parcelable {
 
   @Override
   public void writeToParcel(Parcel dest, int flags) {
-    dest.writeString(event);
-    dest.writeString(created);
-    dest.writeString(shapeForOfflineRegion);
-    dest.writeDouble(minZoom);
-    dest.writeDouble(maxZoom);
-    dest.writeString(styleURL);
-    dest.writeLong(sizeOfResourcesCompleted);
-    dest.writeLong(numberOfTilesCompleted);
-    dest.writeString(state);
   }
-
-  public static final Creator<OfflineDownloadEndEvent> CREATOR = new Creator<OfflineDownloadEndEvent>() {
-    @Override
-    public OfflineDownloadEndEvent createFromParcel(Parcel in) {
-      return new OfflineDownloadEndEvent(in);
-    }
-
-    @Override
-    public OfflineDownloadEndEvent[] newArray(int size) {
-      return new OfflineDownloadEndEvent[size];
-    }
-  };
 }
diff --git a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/OfflineDownloadStartEvent.java b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/OfflineDownloadStartEvent.java
index a7f28ac371..ab39e2d820 100644
--- a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/OfflineDownloadStartEvent.java
+++ b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/OfflineDownloadStartEvent.java
@@ -1,54 +1,51 @@
 package com.mapbox.mapboxsdk.module.telemetry;
 
+import android.annotation.SuppressLint;
 import android.os.Parcel;
-import android.os.Parcelable;
 
-import com.google.gson.annotations.SerializedName;
 import com.mapbox.android.telemetry.Event;
-import com.mapbox.android.telemetry.TelemetryUtils;
 
-
-public class OfflineDownloadStartEvent extends Event implements Parcelable {
-
-  private static final String OFFLINE_DOWNLOAD_START = "map.offlineDownload.start";
-
-  @SerializedName("event")
-  private final String event;
-
-  @SerializedName("created")
+/**
+ * Event will be sent while offline download start.
+ */
+@SuppressLint("ParcelCreator")
+public class OfflineDownloadStartEvent extends Event {
+  private final String event = "map.offlineDownload.start";
   private final String created;
-
-  @SerializedName("minZoom")
   private final Double minZoom;
-
-  @SerializedName("maxZoom")
   private final Double maxZoom;
-
-  @SerializedName("shapeForOfflineRegion")
   private final String shapeForOfflineRegion;
-
-  @SerializedName("styleURL")
   private String styleURL;
 
-  public void setStyleURL(String styleURL) {
+  void setStyleURL(String styleURL) {
     this.styleURL = styleURL;
   }
 
-  OfflineDownloadStartEvent(String shapeForOfflineRegion, Double minZoom, Double maxZoom) {
-    this.event = OFFLINE_DOWNLOAD_START;
-    this.created = TelemetryUtils.obtainCurrentDate();
+  OfflineDownloadStartEvent(PhoneState phoneState, String shapeForOfflineRegion, Double minZoom, Double maxZoom) {
+    this.created = phoneState.getCreated();
     this.shapeForOfflineRegion = shapeForOfflineRegion;
     this.minZoom = minZoom;
     this.maxZoom = maxZoom;
   }
 
-  private OfflineDownloadStartEvent(Parcel in) {
-    event = in.readString();
-    created = in.readString();
-    shapeForOfflineRegion = in.readString();
-    minZoom = in.readDouble();
-    maxZoom = in.readDouble();
-    styleURL = in.readString();
+  String getCreated() {
+    return created;
+  }
+
+  Double getMinZoom() {
+    return minZoom;
+  }
+
+  Double getMaxZoom() {
+    return maxZoom;
+  }
+
+  String getShapeForOfflineRegion() {
+    return shapeForOfflineRegion;
+  }
+
+  String getStyleURL() {
+    return styleURL;
   }
 
   @Override
@@ -58,23 +55,5 @@ public class OfflineDownloadStartEvent extends Event implements Parcelable {
 
   @Override
   public void writeToParcel(Parcel dest, int flags) {
-    dest.writeString(event);
-    dest.writeString(created);
-    dest.writeString(shapeForOfflineRegion);
-    dest.writeDouble(minZoom);
-    dest.writeDouble(maxZoom);
-    dest.writeString(styleURL);
   }
-
-  public static final Creator<OfflineDownloadStartEvent> CREATOR = new Creator<OfflineDownloadStartEvent>() {
-    @Override
-    public OfflineDownloadStartEvent createFromParcel(Parcel in) {
-      return new OfflineDownloadStartEvent(in);
-    }
-
-    @Override
-    public OfflineDownloadStartEvent[] newArray(int size) {
-      return new OfflineDownloadStartEvent[size];
-    }
-  };
 }
diff --git a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/PhoneState.java b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/PhoneState.java
new file mode 100644
index 0000000000..8cd388357b
--- /dev/null
+++ b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/PhoneState.java
@@ -0,0 +1,162 @@
+package com.mapbox.mapboxsdk.module.telemetry;
+
+import android.content.Context;
+import android.content.res.Configuration;
+import android.net.wifi.WifiInfo;
+import android.net.wifi.WifiManager;
+import android.telephony.TelephonyManager;
+import android.text.TextUtils;
+import android.util.DisplayMetrics;
+import android.view.WindowManager;
+
+import com.mapbox.android.telemetry.TelemetryUtils;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Class that holds kinds of states of the current phone.
+ */
+class PhoneState {
+  static final String LANDSCAPE = "Landscape";
+  static final String PORTRAIT = "Portrait";
+  private static final String NO_CARRIER = "EMPTY_CARRIER";
+  private static final int NO_NETWORK = -1;
+
+  private static final Map<Integer, String> ORIENTATIONS = new HashMap<Integer, String>() {
+    {
+      put(Configuration.ORIENTATION_LANDSCAPE, LANDSCAPE);
+      put(Configuration.ORIENTATION_PORTRAIT, PORTRAIT);
+    }
+  };
+
+  private String created;
+  private String cellularNetworkType;
+  private String orientation;
+  private String carrier;
+  private int batteryLevel;
+  private boolean pluggedIn;
+  private boolean wifi;
+  private float accessibilityFontScale;
+  private float resolution;
+
+  PhoneState() {
+
+  }
+
+  PhoneState(Context context) {
+    this.created = TelemetryUtils.obtainCurrentDate();
+    this.batteryLevel = TelemetryUtils.obtainBatteryLevel(context);
+    this.pluggedIn = TelemetryUtils.isPluggedIn(context);
+    this.cellularNetworkType = TelemetryUtils.obtainCellularNetworkType(context);
+    this.orientation = ORIENTATIONS.get(context.getResources().getConfiguration().orientation);
+    this.accessibilityFontScale = context.getResources().getConfiguration().fontScale;
+    this.carrier = obtainCellularCarrier(context);
+    this.resolution = obtainDisplayDensity(context);
+    this.wifi = isConnectedToWifi(context);
+  }
+
+  private String obtainCellularCarrier(Context context) {
+    TelephonyManager manager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
+    if (manager == null) {
+      return NO_CARRIER;
+    }
+    String carrierName = manager.getNetworkOperatorName();
+    if (TextUtils.isEmpty(carrierName)) {
+      return NO_CARRIER;
+    }
+    return carrierName;
+  }
+
+  private float obtainDisplayDensity(Context context) {
+    DisplayMetrics displayMetrics = new DisplayMetrics();
+    ((WindowManager) context.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay().getMetrics(displayMetrics);
+    return displayMetrics.density;
+  }
+
+  private boolean isConnectedToWifi(Context context) {
+    try {
+      WifiManager wifiMgr = (WifiManager) context.getApplicationContext().getSystemService(Context.WIFI_SERVICE);
+      if (wifiMgr == null) {
+        return false;
+      }
+      //noinspection MissingPermission
+      WifiInfo wifiInfo = wifiMgr.getConnectionInfo();
+      return wifiMgr.isWifiEnabled() && wifiInfo.getNetworkId() != NO_NETWORK;
+    } catch (Exception exception) {
+      return false;
+    }
+  }
+
+  String getCreated() {
+    return created;
+  }
+
+  void setCreated(String created) {
+    this.created = created;
+  }
+
+  int getBatteryLevel() {
+    return batteryLevel;
+  }
+
+  void setBatteryLevel(int batteryLevel) {
+    this.batteryLevel = batteryLevel;
+  }
+
+  boolean isPluggedIn() {
+    return pluggedIn;
+  }
+
+  void setPluggedIn(boolean pluggedIn) {
+    this.pluggedIn = pluggedIn;
+  }
+
+  String getCellularNetworkType() {
+    return cellularNetworkType;
+  }
+
+  void setCellularNetworkType(String cellularNetworkType) {
+    this.cellularNetworkType = cellularNetworkType;
+  }
+
+  String getOrientation() {
+    return orientation;
+  }
+
+  void setOrientation(String orientation) {
+    this.orientation = orientation;
+  }
+
+  String getCarrier() {
+    return carrier;
+  }
+
+  void setCarrier(String carrier) {
+    this.carrier = carrier;
+  }
+
+  boolean isWifi() {
+    return wifi;
+  }
+
+  void setWifi(boolean wifi) {
+    this.wifi = wifi;
+  }
+
+  float getAccessibilityFontScale() {
+    return accessibilityFontScale;
+  }
+
+  void setAccessibilityFontScale(float accessibilityFontScale) {
+    this.accessibilityFontScale = accessibilityFontScale;
+  }
+
+  float getResolution() {
+    return resolution;
+  }
+
+  void setResolution(float resolution) {
+    this.resolution = resolution;
+  }
+}
diff --git a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/TelemetryImpl.java b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/TelemetryImpl.java
index 026045ef66..5b14fe249a 100644
--- a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/TelemetryImpl.java
+++ b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/module/telemetry/TelemetryImpl.java
@@ -21,18 +21,16 @@ public class TelemetryImpl implements TelemetryDefinition {
 
   @Nullable
   private MapboxTelemetry telemetry;
-  private MapEventFactory mapEventFactory;
+  private Context appContext;
 
   public TelemetryImpl() {
-    Context appContext = Mapbox.getApplicationContext();
+    appContext = Mapbox.getApplicationContext();
     String accessToken = Mapbox.getAccessToken();
     telemetry = new MapboxTelemetry(appContext, accessToken, BuildConfig.MAPBOX_EVENTS_USER_AGENT);
     TelemetryEnabler.State telemetryState = TelemetryEnabler.retrieveTelemetryStateFromPreferences();
     if (TelemetryEnabler.State.ENABLED.equals(telemetryState)) {
       telemetry.enable();
     }
-    mapEventFactory = new MapEventFactory(appContext);
-
   }
 
   /**
@@ -43,7 +41,7 @@ public class TelemetryImpl implements TelemetryDefinition {
     AppUserTurnstile turnstileEvent = new AppUserTurnstile(BuildConfig.MAPBOX_SDK_IDENTIFIER,
       BuildConfig.MAPBOX_SDK_VERSION);
     telemetry.push(turnstileEvent);
-    telemetry.push(mapEventFactory.buildMapLoadEvent());
+    telemetry.push(MapEventFactory.buildMapLoadEvent(new PhoneState(appContext)));
   }
 
   /**
@@ -58,7 +56,7 @@ public class TelemetryImpl implements TelemetryDefinition {
   public void onGestureInteraction(String eventType, double latitude, double longitude, double zoom) {
     MapState state = new MapState(latitude, longitude, zoom);
     state.setGesture(eventType);
-    telemetry.push(mapEventFactory.buildMapClickEvent(state));
+    telemetry.push(MapEventFactory.buildMapClickEvent(new PhoneState(appContext), state));
   }
 
   /**
@@ -98,7 +96,7 @@ public class TelemetryImpl implements TelemetryDefinition {
 
   @Override
   public void onCreateOfflineRegion(@NonNull OfflineRegionDefinition offlineDefinition) {
-    telemetry.push(mapEventFactory.buildOfflineDownloadStartEvent(
+    telemetry.push(MapEventFactory.buildOfflineDownloadStartEvent(new PhoneState(appContext),
       offlineDefinition instanceof OfflineTilePyramidRegionDefinition ? "tileregion" : "shaperegion",
       offlineDefinition.getMinZoom(),
       offlineDefinition.getMaxZoom(),
diff --git a/platform/android/MapboxGLAndroidSDK/src/test/java/com/mapbox/mapboxsdk/module/telemetry/MapEventFactoryTest.java b/platform/android/MapboxGLAndroidSDK/src/test/java/com/mapbox/mapboxsdk/module/telemetry/MapEventFactoryTest.java
new file mode 100644
index 0000000000..dfefb92aee
--- /dev/null
+++ b/platform/android/MapboxGLAndroidSDK/src/test/java/com/mapbox/mapboxsdk/module/telemetry/MapEventFactoryTest.java
@@ -0,0 +1,126 @@
+package com.mapbox.mapboxsdk.module.telemetry;
+
+import android.os.Build;
+
+import com.mapbox.mapboxsdk.BuildConfig;
+import com.mapbox.mapboxsdk.constants.TelemetryConstants;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+public class MapEventFactoryTest {
+  private static final float FONT_SCALE = 1.f;
+  private static final double LATITUDE = 10.0;
+  private static final double LONGITUDE = 11.0;
+  private static final double ZOOM = 10.0;
+  private static final int BATTERY_LEVEL = 50;
+  private static final String CARRIER = "carrier";
+  private static final String NETWORK_TYPE = "network";
+  private static final String CREATED = "2019-04-09";
+  private static final boolean PLUGIN = true;
+  private static final float RESOLUTION = 1024.f;
+  private static final boolean WIFI = true;
+  private static final String SHAPE = "shape";
+  private static final Double MIN_ZOOM = 1.0;
+  private static final Double MAX_ZOOM = 10.0;
+  private static final String STYLE_URL = "style url";
+  private static final Long SIZE_OF_RESOURCES_COMPLETED = 100L;
+  private static final Long NUMBER_OF_TILE_COMPLETED = 1000L;
+  private static final String STATE = "state";
+
+  MapState mapState;
+  PhoneState phoneState;
+
+  @Before
+  public void setUp() {
+    mapState = new MapState(LATITUDE, LONGITUDE, ZOOM);
+    phoneState = new PhoneState();
+    phoneState.setAccessibilityFontScale(FONT_SCALE);
+    phoneState.setBatteryLevel(BATTERY_LEVEL);
+    phoneState.setCarrier(CARRIER);
+    phoneState.setCellularNetworkType(NETWORK_TYPE);
+    phoneState.setCreated(CREATED);
+    phoneState.setOrientation(PhoneState.LANDSCAPE);
+    phoneState.setPluggedIn(PLUGIN);
+    phoneState.setResolution(RESOLUTION);
+    phoneState.setWifi(WIFI);
+  }
+
+  @Test
+  public void testClickEvent() {
+    mapState.setGesture(TelemetryConstants.DOUBLE_TAP);
+    MapClickEvent mapClickEvent = MapEventFactory.buildMapClickEvent(phoneState, mapState);
+    assertEquals(LATITUDE, mapClickEvent.getLatitude(), 0);
+    assertEquals(LONGITUDE, mapClickEvent.getLongitude(), 0);
+    assertEquals(ZOOM, mapClickEvent.getZoom(), 0);
+    assertEquals(BATTERY_LEVEL, mapClickEvent.getBatteryLevel());
+    assertEquals(CARRIER, mapClickEvent.getCarrier());
+    assertEquals(NETWORK_TYPE, mapClickEvent.getCellularNetworkType());
+    assertEquals(CREATED, mapClickEvent.getCreated());
+    assertEquals(TelemetryConstants.DOUBLE_TAP, mapClickEvent.getGesture());
+    assertEquals(PhoneState.LANDSCAPE, mapClickEvent.getOrientation());
+    assertEquals(PLUGIN, mapClickEvent.isPluggedIn());
+    assertEquals(WIFI, mapClickEvent.isWifi());
+  }
+
+  @Test
+  public void testMapLoadEvent() {
+    MapLoadEvent mapLoadEvent = MapEventFactory.buildMapLoadEvent(phoneState);
+    assertEquals("Android - " + Build.VERSION.RELEASE, mapLoadEvent.getOperatingSystem());
+    assertEquals(Build.MODEL, mapLoadEvent.getModel());
+    assertNotNull(mapLoadEvent.getUserId());
+    assertEquals(BATTERY_LEVEL, mapLoadEvent.getBatteryLevel());
+    assertEquals(CARRIER, mapLoadEvent.getCarrier());
+    assertEquals(NETWORK_TYPE, mapLoadEvent.getCellularNetworkType());
+    assertEquals(CREATED, mapLoadEvent.getCreated());
+    assertEquals(PhoneState.LANDSCAPE, mapLoadEvent.getOrientation());
+    assertEquals(BuildConfig.MAPBOX_SDK_IDENTIFIER, mapLoadEvent.getSdkIdentifier());
+    assertEquals(BuildConfig.MAPBOX_SDK_VERSION, mapLoadEvent.getSdkVersion());
+    assertEquals(PLUGIN, mapLoadEvent.isPluggedIn());
+    assertEquals(WIFI, mapLoadEvent.isWifi());
+    assertEquals(FONT_SCALE, mapLoadEvent.getAccessibilityFontScale(), 0);
+  }
+
+  @Test
+  public void testMapDraggedEvent() {
+    MapDragendEvent mapDraggedEvent = MapEventFactory.buildMapDragendEvent(phoneState, mapState);
+    assertEquals(LATITUDE, mapDraggedEvent.getLat(), 0);
+    assertEquals(LONGITUDE, mapDraggedEvent.getLng(), 0);
+    assertEquals(ZOOM, mapDraggedEvent.getZoom(), 0);
+    assertEquals(BATTERY_LEVEL, mapDraggedEvent.getBatteryLevel());
+    assertEquals(CARRIER, mapDraggedEvent.getCarrier());
+    assertEquals(NETWORK_TYPE, mapDraggedEvent.getCellularNetworkType());
+    assertEquals(CREATED, mapDraggedEvent.getCreated());
+    assertEquals(PhoneState.LANDSCAPE, mapDraggedEvent.getOrientation());
+    assertEquals(PLUGIN, mapDraggedEvent.isPluggedIn());
+    assertEquals(WIFI, mapDraggedEvent.isWifi());
+  }
+
+  @Test
+  public void testOfflineDownloadEndEvent() {
+    OfflineDownloadEndEvent offlineDownloadEndEvent = MapEventFactory.buildOfflineDownloadCompleteEvent(phoneState,
+      SHAPE, MIN_ZOOM, MAX_ZOOM, STYLE_URL, SIZE_OF_RESOURCES_COMPLETED, NUMBER_OF_TILE_COMPLETED, STATE);
+    assertEquals(SHAPE, offlineDownloadEndEvent.getShapeForOfflineRegion());
+    assertEquals(MIN_ZOOM, offlineDownloadEndEvent.getMinZoom());
+    assertEquals(MAX_ZOOM, offlineDownloadEndEvent.getMaxZoom());
+    assertEquals(STYLE_URL, offlineDownloadEndEvent.getStyleURL());
+    assertEquals(SIZE_OF_RESOURCES_COMPLETED, offlineDownloadEndEvent.getSizeOfResourcesCompleted());
+    assertEquals(NUMBER_OF_TILE_COMPLETED, offlineDownloadEndEvent.getNumberOfTilesCompleted());
+    assertEquals(STATE, offlineDownloadEndEvent.getState());
+    assertEquals(CREATED, offlineDownloadEndEvent.getCreated());
+  }
+
+  @Test
+  public void testOfflineDownloadStartEvent() {
+    OfflineDownloadStartEvent offlineDownloadStartEvent = MapEventFactory.buildOfflineDownloadStartEvent(phoneState,
+      SHAPE, MIN_ZOOM, MAX_ZOOM, STYLE_URL);
+    assertEquals(SHAPE, offlineDownloadStartEvent.getShapeForOfflineRegion());
+    assertEquals(MIN_ZOOM, offlineDownloadStartEvent.getMinZoom());
+    assertEquals(MAX_ZOOM, offlineDownloadStartEvent.getMaxZoom());
+    assertEquals(STYLE_URL, offlineDownloadStartEvent.getStyleURL());
+    assertEquals(CREATED, offlineDownloadStartEvent.getCreated());
+  }
+}