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#import "MGLMapViewIntegrationTest.h"
@interface MGLEmptyStopsTests : MGLMapViewIntegrationTest
@end
@implementation MGLEmptyStopsTests
- (void)testEmptyStops {
// From https://www.mapbox.com/ios-sdk/examples/dds-circle-layer/
self.mapView.centerCoordinate = CLLocationCoordinate2DMake(38.897,-77.039);
self.mapView.zoomLevel = 10.5;
// "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";
{
NSExpression *interpExpression = [NSExpression mgl_expressionForInterpolatingExpression:NSExpression.zoomLevelVariableExpression
withCurveType:MGLExpressionInterpolationModeLinear
parameters:nil
stops:[NSExpression expressionForConstantValue:@{}]];
@try {
layer.circleColor = interpExpression;
XCTFail();
}
@catch (NSException *exception) {
XCTAssertNotNil(exception);
XCTAssert(exception.name == NSInvalidArgumentException);
}
}
{
NSExpression *steppingExpression = [NSExpression mgl_expressionForSteppingExpression:NSExpression.zoomLevelVariableExpression
fromExpression:[NSExpression expressionForConstantValue:[UIColor greenColor]]
stops:[NSExpression expressionForConstantValue:@{}]];
@try {
layer.circleColor = steppingExpression;
XCTFail();
}
@catch (NSException *exception) {
XCTAssertNotNil(exception);
XCTAssert(exception.name == NSInvalidArgumentException);
}
}
[self.mapView.style addLayer:layer];
[self waitForMapViewToBeRenderedWithTimeout:5.0];
}
@end
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