1 files changed, 51 insertions, 0 deletions
diff --git a/platform/android/MapboxGLAndroidSDKTestApp/src/androidTest/java/com/mapbox/mapboxsdk/testapp/espresso/utils/OnMapReadyIdlingResource.java b/platform/android/MapboxGLAndroidSDKTestApp/src/androidTest/java/com/mapbox/mapboxsdk/testapp/espresso/utils/OnMapReadyIdlingResource.java
new file mode 100644
index 0000000000..cb046c58bb
--- /dev/null
+++ b/platform/android/MapboxGLAndroidSDKTestApp/src/androidTest/java/com/mapbox/mapboxsdk/testapp/espresso/utils/OnMapReadyIdlingResource.java
@@ -0,0 +1,51 @@
+package com.mapbox.mapboxsdk.testapp.espresso.utils;
+
+import android.app.Activity;
+import android.support.test.espresso.IdlingResource;
+import android.util.Log;
+
+import com.mapbox.mapboxsdk.constants.MapboxConstants;
+
+import java.lang.reflect.Field;
+
+public class OnMapReadyIdlingResource implements IdlingResource {
+
+    private final Activity activity;
+    private IdlingResource.ResourceCallback resourceCallback;
+
+    public OnMapReadyIdlingResource(Activity activity) {
+        this.activity = activity;
+    }
+
+    @Override
+    public String getName() {
+        return getClass().getSimpleName();
+    }
+
+    @Override
+    public boolean isIdleNow() {
+        boolean idle = isMapboxMapReady();
+        if (idle && resourceCallback != null) {
+            resourceCallback.onTransitionToIdle();
+        }
+        return idle;
+    }
+
+    @Override
+    public void registerIdleTransitionCallback(ResourceCallback resourceCallback) {
+        this.resourceCallback = resourceCallback;
+    }
+
+    private boolean isMapboxMapReady() {
+        try {
+            Field field = activity.getClass().getDeclaredField("mapboxMap");
+            field.setAccessible(true);
+            Object value = field.get(activity);
+            Log.e(MapboxConstants.TAG, "isMapboxReady called with value " + (value != null));
+            return value != null;
+        } catch (Exception e) {
+            Log.e(MapboxConstants.TAG, "could not reflect", e);
+            return false;
+        }
+    }
+}