[android] avoid converting float to long in android_conversion.hpp (#15557)

2 files changed, 30 insertions, 2 deletions

diff --git a/platform/android/MapboxGLAndroidSDKTestApp/src/androidTest/java/com/mapbox/mapboxsdk/testapp/style/ExpressionTest.java b/platform/android/MapboxGLAndroidSDKTestApp/src/androidTest/java/com/mapbox/mapboxsdk/testapp/style/ExpressionTest.java
index 3cbdf016b4..95bd651cff 100644
--- a/platform/android/MapboxGLAndroidSDKTestApp/src/androidTest/java/com/mapbox/mapboxsdk/testapp/style/ExpressionTest.java
+++ b/platform/android/MapboxGLAndroidSDKTestApp/src/androidTest/java/com/mapbox/mapboxsdk/testapp/style/ExpressionTest.java
@@ -37,6 +37,7 @@ import static com.mapbox.mapboxsdk.style.expressions.Expression.NumberFormatOpti
 import static com.mapbox.mapboxsdk.style.expressions.Expression.NumberFormatOption.maxFractionDigits;
 import static com.mapbox.mapboxsdk.style.expressions.Expression.NumberFormatOption.minFractionDigits;
 import static com.mapbox.mapboxsdk.style.expressions.Expression.collator;
+import static com.mapbox.mapboxsdk.style.expressions.Expression.color;
 import static com.mapbox.mapboxsdk.style.expressions.Expression.eq;
 import static com.mapbox.mapboxsdk.style.expressions.Expression.exponential;
 import static com.mapbox.mapboxsdk.style.expressions.Expression.format;
@@ -732,6 +733,34 @@ public class ExpressionTest extends EspressoTest {
 
   }
 
+  /**
+   * Regression test for #15532
+   */
+  @Test
+  public void testDoubleConversion() {
+    validateTestSetup();
+    invoke(mapboxMap, (uiController, mapboxMap) -> {
+      LatLng latLng = new LatLng(51, 17);
+      mapboxMap.getStyle().addSource(
+        new GeoJsonSource("source", Point.fromLngLat(latLng.getLongitude(), latLng.getLatitude()))
+      );
+
+      CircleLayer layer = new CircleLayer("layer", "source");
+      mapboxMap.getStyle().addLayer(layer);
+
+      Expression input =  interpolate(
+        exponential(0.5f), zoom(),
+        stop(-0.1, color(Color.RED)),
+        stop(0, color(Color.BLUE))
+      );
+
+      layer.setProperties(circleColor(input));
+
+      Expression output = layer.getCircleColor().getExpression();
+      assertArrayEquals("Expression should match", input.toArray(), output.toArray());
+    });
+  }
+
   private void setupStyle() {
     invoke(mapboxMap, (uiController, mapboxMap) -> {
       // Add a source
diff --git a/platform/android/src/style/android_conversion.hpp b/platform/android/src/style/android_conversion.hpp
index d38dbfa684..dc0a0acb31 100644
--- a/platform/android/src/style/android_conversion.hpp
+++ b/platform/android/src/style/android_conversion.hpp
@@ -103,8 +103,7 @@ public:
         } else if (value.isString()) {
             return { value.toString() };
         } else if (value.isNumber()) {
-            auto doubleVal = value.toDouble();
-            return { doubleVal - (int) doubleVal > 0.0 ? doubleVal : value.toLong() };
+            return { value.toDouble() };
         } else {
             return {};
         }