Add two potential fixes for flaky interactions tests (#8093)

This PR includes 2 potential fixes to our interactions tests, which have
been flaky (for example
[here](https://github.com/mapbox/mapbox-sdk/actions/runs/19340074549/job/55401597566?pr=7250)).

1. Added layoutIfNeeded() before camera setup

Potential root cause: iOS doesn't immediately layout subviews when added
to the view hierarchy. Without forcing layout, the MapView's bounds
weren't finalized, causing `map.point(for: coordinate)` to return
incorrect screen coordinates. This
 made taps miss their intended features.

Fix: `rootView.layoutIfNeeded()` forces a layout pass before setting the
camera, ensuring coordinate-to-screen-point
conversions are accurate.

2. Moved observer setup before `map.load()`

Potential root cause: Since the test style is inline JSON (not a network
fetch), it could load synchronously. Attaching the
onMapLoaded observer after calling `load()` created a race condition
where the event might fire before the observer
was ready.

Fix: Moved `map.onMapLoaded.observeNext { }` before `map.load()`,
guaranteeing we capture the event.

cc @mapbox/maps-ios

GitOrigin-RevId: ff6ace82571c77e2b1d2e0fdf675f4e248c61e2e

Author: pjleonard37

Tests/MapboxMapsTests/Foundation/FeaturesetsTests.swift

@@ -11,15 +11,22 @@ final class FeaturesetsTests: IntegrationTestCase {
 
         let rootView = try XCTUnwrap(rootViewController?.view)
         let size = CGSize(width: 200, height: 200)
-        mapView = MapView(frame: .init(origin: CGPoint(x: 100, y: 100), size: size))
+
+        // Pass style and camera in mapInitOptions to avoid loading default style first
+        let mapInitOptions = MapInitOptions(
+            mapStyle: .featuresetTestsStyle,
+            cameraOptions: CameraOptions(center: CLLocationCoordinate2D(latitude: 0, longitude: 0), zoom: 10)
+        )
+        mapView = MapView(frame: .init(origin: CGPoint(x: 100, y: 100), size: size), mapInitOptions: mapInitOptions)
         rootView.addSubview(mapView)
 
-        map.setCamera(to: CameraOptions(center: CLLocationCoordinate2D(latitude: 0, longitude: 0), zoom: 10))
+        // Force layout pass to ensure map view has correct bounds before rendering
+        // This ensures coordinate-to-screen-point conversions are accurate
+        rootView.layoutIfNeeded()
 
         let expectation = expectation(description: "Load the map")
 
-        map.load(mapStyle: .featuresetTestsStyle)
-
+        // Set up observer to wait for map to be fully loaded
         map.onMapLoaded.observeNext { _ in
             expectation.fulfill()
         }.store(in: &cancelables)

Tests/MapboxMapsTests/Foundation/InteractionsTests.swift

@@ -11,15 +11,22 @@ final class InteractionsTests: IntegrationTestCase {
 
         let rootView = try XCTUnwrap(rootViewController?.view)
         let size = CGSize(width: 200, height: 200)
-        mapView = MapView(frame: .init(origin: CGPoint(x: 100, y: 100), size: size))
+
+        // Pass style and camera in mapInitOptions to avoid loading default style first
+        let mapInitOptions = MapInitOptions(
+            mapStyle: .featuresetTestsStyle,
+            cameraOptions: CameraOptions(center: CLLocationCoordinate2D(latitude: 0, longitude: 0), zoom: 10)
+        )
+        mapView = MapView(frame: .init(origin: CGPoint(x: 100, y: 100), size: size), mapInitOptions: mapInitOptions)
         rootView.addSubview(mapView)
 
-        map.setCamera(to: CameraOptions(center: CLLocationCoordinate2D(latitude: 0, longitude: 0), zoom: 10))
+        // Force layout pass to ensure map view has correct bounds before rendering
+        // This ensures coordinate-to-screen-point conversions are accurate
+        rootView.layoutIfNeeded()
 
         let expectation = expectation(description: "Load the map")
 
-        map.load(mapStyle: .featuresetTestsStyle)
-
+        // Set up observer to wait for map to be fully loaded
         map.onMapLoaded.observeNext { _ in
             expectation.fulfill()
         }.store(in: &cancelables)