1 files changed, 61 insertions, 0 deletions
diff --git a/platform/ios/Integration Tests/MGLStyleLayerIntegrationTests.m b/platform/ios/Integration Tests/MGLStyleLayerIntegrationTests.m
new file mode 100644
index 0000000000..015a58d2d2
--- /dev/null
+++ b/platform/ios/Integration Tests/MGLStyleLayerIntegrationTests.m
@@ -0,0 +1,61 @@
+#import "MGLMapViewIntegrationTest.h"
+
+@interface MGLStyleLayerIntegrationTests : MGLMapViewIntegrationTest
+@end
+
+@implementation MGLStyleLayerIntegrationTests
+
+- (MGLCircleStyleLayer*)setupCircleStyleLayer {
+    // Adapted from https://www.mapbox.com/ios-sdk/examples/dds-circle-layer/
+
+    // "mapbox://examples.2uf7qges" is a map ID referencing a tileset. For more
+    // more information, see mapbox.com/help/define-map-id/
+    MGLSource *source = [[MGLVectorTileSource alloc] initWithIdentifier:@"trees" configurationURL:[NSURL URLWithString:@"mapbox://examples.2uf7qges"]];
+    [self.mapView.style addSource:source];
+
+    MGLCircleStyleLayer *layer = [[MGLCircleStyleLayer alloc] initWithIdentifier: @"tree-style" source:source];
+
+    // The source name from the source's TileJSON metadata: mapbox.com/api-documentation/#retrieve-tilejson-metadata
+    layer.sourceLayerIdentifier = @"yoshino-trees-a0puw5";
+
+    return layer;
+}
+
+- (void)testForInterpolatingExpressionRenderCrashWithEmptyStops {
+    // Tests: https://github.com/mapbox/mapbox-gl-native/issues/9539
+    // Adapted from https://www.mapbox.com/ios-sdk/examples/dds-circle-layer/
+    self.mapView.centerCoordinate = CLLocationCoordinate2DMake(38.897,-77.039);
+    self.mapView.zoomLevel = 10.5;
+
+    MGLCircleStyleLayer *layer = [self setupCircleStyleLayer];
+
+    NSExpression *interpExpression = [NSExpression mgl_expressionForInterpolatingExpression:NSExpression.zoomLevelVariableExpression
+                                                                              withCurveType:MGLExpressionInterpolationModeLinear
+                                                                                 parameters:nil
+                                                                                      stops:[NSExpression expressionForConstantValue:@{}]];
+
+    XCTAssertThrowsSpecificNamed((layer.circleColor = interpExpression), NSException, NSInvalidArgumentException);
+
+    [self.mapView.style addLayer:layer];
+    [self waitForMapViewToBeRenderedWithTimeout:1.0];
+}
+
+- (void)testForSteppingExpressionRenderCrashWithEmptyStops {
+    // Tests: https://github.com/mapbox/mapbox-gl-native/issues/9539
+    // Adapted from https://www.mapbox.com/ios-sdk/examples/dds-circle-layer/
+    self.mapView.centerCoordinate = CLLocationCoordinate2DMake(38.897,-77.039);
+    self.mapView.zoomLevel = 10.5;
+
+    MGLCircleStyleLayer *layer = [self setupCircleStyleLayer];
+
+    NSExpression *steppingExpression = [NSExpression mgl_expressionForSteppingExpression:NSExpression.zoomLevelVariableExpression
+                                                                          fromExpression:[NSExpression expressionForConstantValue:[UIColor greenColor]]
+                                                                                   stops:[NSExpression expressionForConstantValue:@{}]];
+
+    XCTAssertThrowsSpecificNamed((layer.circleColor = steppingExpression), NSException, NSInvalidArgumentException);
+
+    [self.mapView.style addLayer:layer];
+    [self waitForMapViewToBeRenderedWithTimeout:1.0];
+}
+
+@end