[android] - zoom to at least 2 when tracking is enabled (#7795)

* [android] - zoom to at least 2 when tracking is enabled, introduce interface for zoom invalidation, simplify example

* fixup unit test, added test for new interface + focal point interface

1 files changed, 30 insertions, 1 deletions

diff --git a/platform/android/MapboxGLAndroidSDKTestApp/src/test/java/com/mapbox/mapboxsdk/maps/TrackingSettingsTest.java b/platform/android/MapboxGLAndroidSDKTestApp/src/test/java/com/mapbox/mapboxsdk/maps/TrackingSettingsTest.java
index 150f638e1c..de5f364a5b 100644
--- a/platform/android/MapboxGLAndroidSDKTestApp/src/test/java/com/mapbox/mapboxsdk/maps/TrackingSettingsTest.java
+++ b/platform/android/MapboxGLAndroidSDKTestApp/src/test/java/com/mapbox/mapboxsdk/maps/TrackingSettingsTest.java
@@ -3,6 +3,7 @@ package com.mapbox.mapboxsdk.maps;
 import android.Manifest;
 import android.content.Context;
 import android.content.pm.PackageManager;
+import android.graphics.PointF;
 
 import com.mapbox.mapboxsdk.constants.MyLocationTracking;
 import com.mapbox.mapboxsdk.maps.widgets.MyLocationView;
@@ -16,7 +17,9 @@ import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.atLeast;
 import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
 public class TrackingSettingsTest {
@@ -30,11 +33,14 @@ public class TrackingSettingsTest {
   @InjectMocks
   FocalPointChangeListener focalPointChangeListener = mock(FocalPointChangeListener.class);
 
+  @InjectMocks
+  TrackingSettings.CameraZoomInvalidator zoomInvalidator = mock(TrackingSettings.CameraZoomInvalidator.class);
+
   private TrackingSettings trackingSettings;
 
   @Before
   public void beforeTest() {
-    trackingSettings = new TrackingSettings(myLocationView, uiSettings, focalPointChangeListener);
+    trackingSettings = new TrackingSettings(myLocationView, uiSettings, focalPointChangeListener, zoomInvalidator);
   }
 
   @Test
@@ -67,4 +73,27 @@ public class TrackingSettingsTest {
     trackingSettings.setMyLocationEnabled(true);
     assertTrue("Location should be enabled", trackingSettings.isMyLocationEnabled());
   }
+
+  @Test
+  public void testCameraZoomTo2forTracking() {
+    trackingSettings.setMyLocationTrackingMode(MyLocationTracking.TRACKING_FOLLOW);
+    verify(zoomInvalidator, atLeast(1)).zoomTo(2.0);
+  }
+
+  @Test
+  public void testFocalPointChangeForTracking() {
+    final float centerX = 32.3f;
+    final float centerY = 46.3f;
+    final PointF pointF = new PointF(centerX, centerY);
+    when(myLocationView.getCenter()).thenReturn(pointF);
+
+    trackingSettings.setMyLocationTrackingMode(MyLocationTracking.TRACKING_FOLLOW);
+    verify(focalPointChangeListener, atLeast(1)).onFocalPointChanged(pointF);
+  }
+
+  @Test
+  public void testFocalPointChangeForNonTracking() {
+    trackingSettings.setMyLocationTrackingMode(MyLocationTracking.TRACKING_NONE);
+    verify(focalPointChangeListener, atLeast(1)).onFocalPointChanged(null);
+  }
 }