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import XCTest
class MGLMapSnapshotterSwiftTests: MGLMapViewIntegrationTest {
// Create snapshot options
private class func snapshotterOptions(size: CGSize) -> MGLMapSnapshotOptions {
let camera = MGLMapCamera()
let options = MGLMapSnapshotOptions(styleURL: MGLStyle.satelliteStreetsStyleURL, camera: camera, size: size)
let sw = CLLocationCoordinate2D(latitude: 52.3, longitude: 13.0)
let ne = CLLocationCoordinate2D(latitude: 52.5, longitude: 13.2)
options.coordinateBounds = MGLCoordinateBounds(sw:sw, ne:ne)
return options
}
func testCapturingSnapshotterInSnapshotCompletion🔒() {
// See the Obj-C testDeallocatingSnapshotterDuringSnapshot
// This Swift test, is essentially the same except for capturing the snapshotter
let timeout: TimeInterval = 10.0
let expectation = self.expectation(description: "snapshot")
let options = MGLMapSnapshotterSwiftTests.snapshotterOptions(size: mapView.bounds.size)
let backgroundQueue = DispatchQueue.main
backgroundQueue.async {
let dg = DispatchGroup()
dg.enter()
DispatchQueue.main.async {
let snapshotter = MGLMapSnapshotter(options: options)
snapshotter.start(completionHandler: { (snapshot, error) in
// // Without capturing snapshotter:
// XCTAssertNil(snapshot)
// XCTAssertNotNil(error)
// Capture snapshotter
dump(snapshotter)
XCTAssertNotNil(snapshot)
XCTAssertNil(error)
dg.leave()
})
}
dg.notify(queue: .main) {
expectation.fulfill()
}
}
wait(for: [expectation], timeout: timeout)
}
func testSnapshotOverlaySwiftErgonomics🔒() {
let options = MGLMapSnapshotterSwiftTests.snapshotterOptions(size: mapView.bounds.size)
let snapshotter = MGLMapSnapshotter(options: options)
let expectation = self.expectation(description: "snapshot")
expectation.expectedFulfillmentCount = 2
snapshotter.start(overlayHandler: { (overlay) in
guard let _ = overlay.context.makeImage() else {
XCTFail()
return
}
expectation.fulfill()
}) { (_, _) in
expectation.fulfill()
}
wait(for: [expectation], timeout: 10)
}
}
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