[ios] Fixed test name (since validAccessToken has been removed in another PR). Added some more asserts. (#15643)

2 files changed, 42 insertions, 13 deletions

diff --git a/platform/ios/Integration Tests/Snapshotter Tests/MGLMapSnapshotterSwiftTests.swift b/platform/ios/Integration Tests/Snapshotter Tests/MGLMapSnapshotterSwiftTests.swift
index c3400b1fa2..d33a986beb 100644
--- a/platform/ios/Integration Tests/Snapshotter Tests/MGLMapSnapshotterSwiftTests.swift
+++ b/platform/ios/Integration Tests/Snapshotter Tests/MGLMapSnapshotterSwiftTests.swift
@@ -56,4 +56,22 @@ class MGLMapSnapshotterSwiftTests: MGLMapViewIntegrationTest {
 
         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)
+    }
 }
diff --git a/platform/ios/Integration Tests/Snapshotter Tests/MGLMapSnapshotterTest.m b/platform/ios/Integration Tests/Snapshotter Tests/MGLMapSnapshotterTest.m
index 7707896203..19718165b3 100644
--- a/platform/ios/Integration Tests/Snapshotter Tests/MGLMapSnapshotterTest.m
+++ b/platform/ios/Integration Tests/Snapshotter Tests/MGLMapSnapshotterTest.m
@@ -393,11 +393,7 @@ MGLMapSnapshotter* snapshotterWithCoordinates(CLLocationCoordinate2D coordinates
     [self waitForExpectations:@[expectation] timeout:10.0];
 }
 
-- (void)testSnapshotWithOverlayHandlerFailure {
-    if (![self validAccessToken]) {
-        return;
-    }
-
+- (void)testSnapshotWithOverlayHandlerFailure🔒 {
     CGSize size = self.mapView.bounds.size;
 
     XCTestExpectation *expectation = [self expectationWithDescription:@"snapshot with overlay fails"];
@@ -408,23 +404,25 @@ MGLMapSnapshotter* snapshotterWithCoordinates(CLLocationCoordinate2D coordinates
     MGLMapSnapshotter *snapshotter = snapshotterWithCoordinates(coord, size);
     XCTAssertNotNil(snapshotter);
 
-    [snapshotter startWithOverlayHandler:^(MGLMapSnapshotOverlay * _Nullable snapshotOverlay) {
+    [snapshotter startWithOverlayHandler:^(MGLMapSnapshotOverlay *snapshotOverlay) {
+        XCTAssertNotNil(snapshotOverlay);
+        
         UIGraphicsEndImageContext();
         [expectation fulfill];
     } completionHandler:^(MGLMapSnapshot * _Nullable snapshot, NSError * _Nullable error) {
         XCTAssertNil(snapshot);
         XCTAssertNotNil(error);
+        XCTAssertEqualObjects(error.domain, MGLErrorDomain);
+        XCTAssertEqual(error.code, MGLErrorCodeSnapshotFailed);
+        XCTAssertEqualObjects(error.localizedDescription, @"Failed to generate composited snapshot.");
+                
         [expectation fulfill];
     }];
 
     [self waitForExpectations:@[expectation] timeout:10.0];
 }
 
-- (void)testSnapshotWithOverlayHandlerSuccess {
-    if (![self validAccessToken]) {
-        return;
-    }
-
+- (void)testSnapshotWithOverlayHandlerSuccess🔒 {
     CGSize size = self.mapView.bounds.size;
     CGRect snapshotRect = CGRectMake(0, 0, size.width, size.height);
 
@@ -435,8 +433,21 @@ MGLMapSnapshotter* snapshotterWithCoordinates(CLLocationCoordinate2D coordinates
 
     MGLMapSnapshotter *snapshotter = snapshotterWithCoordinates(coord, size);
     XCTAssertNotNil(snapshotter);
-
-    [snapshotter startWithOverlayHandler:^(MGLMapSnapshotOverlay * _Nullable snapshotOverlay) {
+    
+    CGFloat scale = snapshotter.options.scale;
+    
+    [snapshotter startWithOverlayHandler:^(MGLMapSnapshotOverlay *snapshotOverlay) {
+        XCTAssertNotNil(snapshotOverlay);
+        
+        CGFloat width = CGBitmapContextGetWidth(snapshotOverlay.context);
+        CGFloat height = CGBitmapContextGetHeight(snapshotOverlay.context);
+
+        CGRect contextRect = CGContextConvertRectToDeviceSpace(snapshotOverlay.context, CGRectMake(0, 0, 1, 0));
+        CGFloat scaleFromContext = contextRect.size.width;
+        XCTAssertEqual(scale, scaleFromContext);
+        XCTAssertEqual(width, size.width*scale);
+        XCTAssertEqual(height, size.height*scale);
+        
         CGContextSetFillColorWithColor(snapshotOverlay.context, [UIColor.greenColor CGColor]);
         CGContextSetAlpha(snapshotOverlay.context, 0.2);
         CGContextAddRect(snapshotOverlay.context, snapshotRect);