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#import <Mapbox/Mapbox.h>
#import <XCTest/XCTest.h>
#import <mbgl/math/wrap.hpp>
static MGLMapView *mapView;
@interface MGLMapView (MGLMapViewDirectionTests)
- (void)handleRotateGesture:(UIRotationGestureRecognizer *)rotate;
- (void)resetNorthAnimated:(BOOL)animated;
@end
@interface UIRotationGestureRecognizer (MGLMapViewDirectionTests)
@property (nonatomic, readwrite) UIGestureRecognizerState state;
@end
@interface MGLMapViewDirectionTests : XCTestCase
@end
@implementation MGLMapViewDirectionTests
- (void)setUp {
[super setUp];
[MGLAccountManager setAccessToken:@"pk.feedcafedeadbeefbadebede"];
NSURL *styleURL = [[NSBundle bundleForClass:[self class]] URLForResource:@"one-liner" withExtension:@"json"];
mapView = [[MGLMapView alloc] initWithFrame:CGRectMake(0, 0, 64, 64) styleURL:styleURL];
}
- (void)tearDown {
mapView = nil;
[MGLAccountManager setAccessToken:nil];
[super tearDown];
}
- (void)testDirection {
mapView.zoomLevel = 0;
mapView.direction = 30;
XCTAssertEqual(mapView.direction, 0, @"Rotation is not allowed at world-scale zoom levels.");
mapView.zoomLevel = 15;
for (NSNumber *degrees in @[@-999, @-359, @-240, @-180, @-90, @-45, @0, @45, @90, @180, @240, @360, @999]) {
double inputDegrees = [degrees doubleValue];
double wrappedDegrees = mbgl::util::wrap(inputDegrees, 0., 360.);
mapView.direction = inputDegrees;
XCTAssertEqualWithAccuracy(mapView.direction, wrappedDegrees, 0.001);
}
[mapView resetNorthAnimated:NO];
XCTAssertEqual(mapView.direction, 0, @"Reset-to-north should set direction to 0°.");
}
- (void)testRotateEnabled {
mapView.zoomLevel = 10;
UIRotationGestureRecognizer *gesture = [[UIRotationGestureRecognizer alloc] initWithTarget:nil action:nil];
gesture.state = UIGestureRecognizerStateBegan;
gesture.rotation = MGLRadiansFromDegrees(30);
CGFloat wrappedRotation = mbgl::util::wrap(-MGLDegreesFromRadians(gesture.rotation), 0., 360.);
// Disabled
{
mapView.rotateEnabled = NO;
XCTAssertEqual(mapView.allowsRotating, NO);
[mapView handleRotateGesture:gesture];
XCTAssertNotEqual(mapView.direction, wrappedRotation, @"Gestural rotation should not work when rotation is disabled.");
mapView.direction = 45.f;
XCTAssertEqualWithAccuracy(mapView.direction, 45, 0.001, @"Programmatic rotation is allowed when rotateEnabled = NO.");
}
// Enabled
{
[mapView resetNorthAnimated:NO];
mapView.rotateEnabled = YES;
XCTAssertEqual(mapView.allowsRotating, YES);
gesture.state = UIGestureRecognizerStateChanged;
gesture.rotation = MGLRadiansFromDegrees(30);
[mapView handleRotateGesture:gesture];
XCTAssertEqualWithAccuracy(mapView.direction, wrappedRotation, 0.001, @"Gestural rotation should work when rotation is enabled.");
}
}
- (void)testRotateGesture {
mapView.zoomLevel = 15;
UIRotationGestureRecognizer *gesture = [[UIRotationGestureRecognizer alloc] initWithTarget:nil action:nil];
gesture.state = UIGestureRecognizerStateBegan;
gesture.rotation = 0;
[mapView handleRotateGesture:gesture];
XCTAssertEqual(mapView.direction, gesture.rotation);
for (NSNumber *degrees in @[@-999, @-360, @-240, @-180, @-90, @-45, @0, @45, @90, @180, @240, @359, @999]) {
gesture.state = UIGestureRecognizerStateChanged;
gesture.rotation = MGLRadiansFromDegrees([degrees doubleValue]);
[mapView handleRotateGesture:gesture];
CGFloat wrappedRotation = mbgl::util::wrap(-MGLDegreesFromRadians(gesture.rotation), 0., 360.);
XCTAssertEqualWithAccuracy(mapView.direction, wrappedRotation, 0.001, @"Map direction should match gesture rotation for input of %@°.", degrees);
}
}
- (void)testCompassRotation {
mapView.zoomLevel = 15;
for (NSNumber *degrees in @[@-999, @-359, @-240, @-180, @-90, @-45, @0, @45, @90, @180, @240, @360, @999]) {
mapView.direction = [degrees doubleValue];
CGFloat wrappedDirection = mbgl::util::wrap(-mapView.direction, 0., 360.);
CGAffineTransform rotation = CGAffineTransformMakeRotation(MGLRadiansFromDegrees(wrappedDirection));
XCTAssertTrue(CGAffineTransformEqualToTransform(mapView.compassView.transform, rotation),
@"Compass transform direction %f° should equal wrapped transform direction %f° (~%.f°).", [self degreesFromAffineTransform:mapView.compassView.transform], [self degreesFromAffineTransform:rotation], wrappedDirection);
}
}
- (void)testResetPosition {
[mapView resetPosition];
MGLMapCamera *defaultCamera = [MGLMapCamera cameraLookingAtCenterCoordinate:CLLocationCoordinate2DMake(0, 0) altitude:mapView.camera.altitude pitch:0 heading:0];
XCTAssertTrue([mapView.camera isEqualToMapCamera:defaultCamera], @"Map camera %@ should be equal to default camera %@.", mapView.camera, defaultCamera);
}
- (CGFloat)degreesFromAffineTransform:(CGAffineTransform)transform {
CGFloat angle = atan2f(transform.b, transform.a);
return MGLDegreesFromRadians(angle);
}
@end
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