Merge branch 'release-boba' into masterupstream/fabian-merge-v4.0.0

# Conflicts:
#	circle.yml
#	include/mbgl/style/expression/let.hpp
#	platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/geometry/LatLngBounds.java
#	platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/MapGestureDetector.java
#	platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/MapKeyListener.java
#	platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/MapView.java
#	platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/MapboxMap.java
#	platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/Projection.java
#	platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/Transform.java
#	platform/android/MapboxGLAndroidSDK/src/test/java/com/mapbox/mapboxsdk/geometry/LatLngBoundsTest.java
#	platform/android/MapboxGLAndroidSDKTestApp/src/main/AndroidManifest.xml
#	platform/android/gradle/dependencies.gradle
#	platform/android/src/example_custom_layer.cpp
#	platform/android/src/geojson/point.cpp
#	platform/darwin/src/NSPredicate+MGLAdditions.mm
#	platform/darwin/test/MGLExpressionTests.mm
#	platform/ios/Mapbox-iOS-SDK-nightly-dynamic.podspec
#	platform/ios/Mapbox-iOS-SDK-symbols.podspec
#	platform/ios/Mapbox-iOS-SDK.podspec
#	platform/ios/app/MBXViewController.m
#	src/mbgl/renderer/layers/render_custom_layer.cpp
#	src/mbgl/style/conversion/filter.cpp
#	src/mbgl/style/expression/interpolate.cpp
#	src/mbgl/style/expression/value.cpp
#	test/style/filter.test.cpp

1 files changed, 77 insertions, 0 deletions

diff --git a/platform/android/MapboxGLAndroidSDKTestApp/src/androidTest/java/com/mapbox/mapboxsdk/testapp/style/StyleLoaderTest.java b/platform/android/MapboxGLAndroidSDKTestApp/src/androidTest/java/com/mapbox/mapboxsdk/testapp/style/StyleLoaderTest.java
new file mode 100644
index 0000000000..1a5201193c
--- /dev/null
+++ b/platform/android/MapboxGLAndroidSDKTestApp/src/androidTest/java/com/mapbox/mapboxsdk/testapp/style/StyleLoaderTest.java
@@ -0,0 +1,77 @@
+package com.mapbox.mapboxsdk.testapp.style;
+
+
+import android.support.test.espresso.UiController;
+
+import com.mapbox.mapboxsdk.maps.MapView;
+import com.mapbox.mapboxsdk.maps.MapboxMap;
+import com.mapbox.mapboxsdk.testapp.R;
+import com.mapbox.mapboxsdk.testapp.action.MapboxMapAction;
+import com.mapbox.mapboxsdk.testapp.activity.BaseActivityTest;
+import com.mapbox.mapboxsdk.testapp.activity.espresso.EspressoTestActivity;
+import com.mapbox.mapboxsdk.testapp.utils.ResourceUtils;
+
+import org.junit.Test;
+
+import java.io.IOException;
+
+import static com.mapbox.mapboxsdk.testapp.action.MapboxMapAction.invoke;
+import static org.junit.Assert.assertEquals;
+
+/**
+ * Tests around style loading
+ */
+public class StyleLoaderTest extends BaseActivityTest {
+
+
+  @Override
+  protected Class getActivityClass() {
+    return EspressoTestActivity.class;
+  }
+
+  @Test
+  public void testSetGetStyleJsonString() throws Exception {
+    validateTestSetup();
+    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
+      @Override
+      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
+        try {
+          String expected = ResourceUtils.readRawResource(rule.getActivity(), R.raw.local_style);
+          mapboxMap.setStyleJson(expected);
+          String actual = mapboxMap.getStyleJson();
+          assertEquals("Style json should match", expected, actual);
+        } catch (IOException exception) {
+          exception.printStackTrace();
+        }
+      }
+    });
+  }
+
+  @Test
+  public void testDefaultStyleLoadWithActivityLifecycleChange() throws Exception {
+    validateTestSetup();
+    invoke(mapboxMap, new MapboxMapAction.OnInvokeActionListener() {
+      @Override
+      public void onInvokeAction(UiController uiController, MapboxMap mapboxMap) {
+        try {
+          String expected = ResourceUtils.readRawResource(rule.getActivity(), R.raw.local_style);
+          mapboxMap.setStyleJson(expected);
+
+          // fake activity stop/start
+          MapView mapView = (MapView) rule.getActivity().findViewById(R.id.mapView);
+          mapView.onPause();
+          mapView.onStop();
+
+          mapView.onStart();
+          mapView.onResume();
+
+          String actual = mapboxMap.getStyleJson();
+          assertEquals("Style URL should be empty", "", mapboxMap.getStyleUrl());
+          assertEquals("Style json should match", expected, actual);
+        } catch (IOException exception) {
+          exception.printStackTrace();
+        }
+      }
+    });
+  }
+}
\ No newline at end of file