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[ios] Check center coordinate in MGLMapViewDirectionTests

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Jason Wray
2019-07-12 13:38:11 -07:00
committed by Jason Wray
parent 4e1ba601b3
commit 866aa6a6f1
1 changed files with 20 additions and 4 deletions
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24
platform/ios/test/MGLMapViewDirectionTests.mm
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@@ -8,8 +8,11 @@
- (void)resetNorthAnimated:(BOOL)animated;
@end
@interface UIRotationGestureRecognizer (MGLMapViewDirectionTests)
@property (nonatomic, readwrite) UIGestureRecognizerState state;
@interface UIRotationGestureRecognizerMock : UIRotationGestureRecognizer
@end
@implementation UIRotationGestureRecognizerMock
- (CGPoint)locationInView:(nullable UIView*)view { return view.center; }
@end
@interface MGLMapViewDirectionTests : XCTestCase
@@ -38,22 +41,28 @@
XCTAssertEqual(self.mapView.direction, 0, @"Rotation is not allowed at world-scale zoom levels.");
self.mapView.zoomLevel = 15;
CLLocationCoordinate2D originalCenterCoordinate = self.mapView.centerCoordinate;
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.);
self.mapView.direction = inputDegrees;
XCTAssertEqualWithAccuracy(self.mapView.direction, wrappedDegrees, 0.001);
XCTAssertEqual(originalCenterCoordinate.latitude, self.mapView.centerCoordinate.latitude, "@Map center coordinate latitude should remain constant when direction is set to %@°.", degrees);
XCTAssertEqual(originalCenterCoordinate.longitude, self.mapView.centerCoordinate.longitude, @"Map center coordinate longitude should remain constant when direction is set to %@°.", degrees);
}
[self.mapView resetNorthAnimated:NO];
XCTAssertEqual(self.mapView.direction, 0, @"Reset-to-north should set direction to 0°.");
XCTAssertEqual(originalCenterCoordinate.latitude, self.mapView.centerCoordinate.latitude, "@Map center coordinate latitude should remain constant when direction is reset.");
XCTAssertEqual(originalCenterCoordinate.longitude, self.mapView.centerCoordinate.longitude, @"Map center coordinate latitude should remain constant when direction is reset.");
}
- (void)testRotateEnabled {
self.mapView.zoomLevel = 10;
UIRotationGestureRecognizer *gesture = [[UIRotationGestureRecognizer alloc] initWithTarget:nil action:nil];
UIRotationGestureRecognizerMock *gesture = [[UIRotationGestureRecognizerMock alloc] initWithTarget:nil action:nil];
gesture.state = UIGestureRecognizerStateBegan;
gesture.rotation = MGLRadiansFromDegrees(30);
CGFloat wrappedRotation = mbgl::util::wrap(-MGLDegreesFromRadians(gesture.rotation), 0., 360.);
@@ -85,10 +94,12 @@
- (void)testRotationGesture {
self.mapView.zoomLevel = 15;
CLLocationCoordinate2D originalCenterCoordinate = self.mapView.centerCoordinate;
UIRotationGestureRecognizer *gesture = [[UIRotationGestureRecognizer alloc] initWithTarget:nil action:nil];
UIRotationGestureRecognizerMock *gesture = [[UIRotationGestureRecognizerMock alloc] initWithTarget:self.mapView action:nil];
gesture.state = UIGestureRecognizerStateBegan;
gesture.rotation = 0;
[self.mapView addGestureRecognizer:gesture];
[self.mapView handleRotateGesture:gesture];
XCTAssertEqual(self.mapView.direction, gesture.rotation);
@@ -98,6 +109,11 @@
[self.mapView handleRotateGesture:gesture];
CGFloat wrappedRotation = mbgl::util::wrap(-MGLDegreesFromRadians(gesture.rotation), 0., 360.);
XCTAssertEqualWithAccuracy(self.mapView.direction, wrappedRotation, 0.001, @"Map direction should match gesture rotation for input of %@°.", degrees);
// Given a hypothetical rotation around the exact center of the map, the center coordinate should remain the same.
// See above where we override -[UIRotationGestureRecognizer locationInView:] to always return the center of the target view.
XCTAssertEqualWithAccuracy(originalCenterCoordinate.latitude, self.mapView.centerCoordinate.latitude, 0.0000001, "@Map center coordinate latitude should remain constant during rotation of %@°.", degrees);
XCTAssertEqualWithAccuracy(originalCenterCoordinate.longitude, self.mapView.centerCoordinate.longitude, 0.0000001, @"Map center coordinate longitude should remain constant during rotation of %@°.", degrees);
}
}