Add support for getClusters method to the google_maps_inpector_web

Author: jokerttu

packages/google_maps_flutter/google_maps_flutter/example/integration_test/src/maps_inspector.dart

@@ -565,9 +565,9 @@ void runTests() {
     final Completer<GoogleMapController> controllerCompleter =
         Completer<GoogleMapController>();
 
-    await tester.pumpWidget(Directionality(
-      textDirection: TextDirection.ltr,
-      child: GoogleMap(
+    await pumpMap(
+      tester,
+      GoogleMap(
         key: key,
         initialCameraPosition: kInitialCameraPosition,
         clusterManagers: clusterManagers,
@@ -576,7 +576,7 @@ void runTests() {
           controllerCompleter.complete(googleMapController);
         },
       ),
-    ));
+    );
 
     final GoogleMapController controller = await controllerCompleter.future;
 
@@ -596,14 +596,15 @@ void runTests() {
     for (final MapEntry<MarkerId, Marker> entry in markers.entries) {
       markers[entry.key] = _copyMarkerWithClusterManagerId(entry.value, null);
     }
-    await tester.pumpWidget(Directionality(
-      textDirection: TextDirection.ltr,
-      child: GoogleMap(
+
+    await pumpMap(
+      tester,
+      GoogleMap(
           key: key,
           initialCameraPosition: kInitialCameraPosition,
           clusterManagers: clusterManagers,
           markers: Set<Marker>.of(markers.values)),
-    ));
+    );
 
     for (final ClusterManager cm in clusterManagers) {
       final List<Cluster> clusters = await inspector.getClusters(

packages/google_maps_flutter/google_maps_flutter_web/example/integration_test/markers_test.dart

@@ -353,7 +353,7 @@ void main() {
       expect((event as InfoWindowTapEvent).value, equals(const MarkerId('1')));
     });
 
-    testWidgets('clustering', (WidgetTester tester) async {
+    testWidgets('marker clustering', (WidgetTester tester) async {
       const ClusterManagerId clusterManagerId = ClusterManagerId('cluster 1');
 
       final Set<ClusterManager> clusterManagers = <ClusterManager>{
@@ -381,7 +381,7 @@ void main() {
 
       expect(clusters.length, 1);
 
-      // Update the marker with null clusterManagerId.
+      // Copy the marker with null clusterManagerId.
       final Set<Marker> updatedMarkers = <Marker>{
         _copyMarkerWithClusterManagerId(markers.first, null)
       };

packages/google_maps_flutter/google_maps_flutter_web/lib/src/google_maps_controller.dart

@@ -122,6 +122,11 @@ class GoogleMapController {
   // Keeps track if the map is moving or not.
   bool _mapIsMoving = false;
 
+  /// The ClusterManagersController of this Map. Only for integration testing.
+  @visibleForTesting
+  ClusterManagersController? get clusterManagersController =>
+      _clusterManagersController;
+
   /// Overrides certain properties to install mocks defined during testing.
   @visibleForTesting
   void debugSetOverrides({

packages/google_maps_flutter/google_maps_flutter_web/lib/src/google_maps_flutter_web.dart

@@ -347,6 +347,7 @@ class GoogleMapsPlugin extends GoogleMapsFlutterPlatform {
   void enableDebugInspection() {
     GoogleMapsInspectorPlatform.instance = GoogleMapsInspectorWeb(
       (int mapId) => _map(mapId).configuration,
+      (int mapId) => _map(mapId).clusterManagersController,
     );
   }
 }

packages/google_maps_flutter/google_maps_flutter_web/lib/src/google_maps_inspector_web.dart

@@ -3,17 +3,25 @@
 // found in the LICENSE file.
 
 import 'package:google_maps_flutter_platform_interface/google_maps_flutter_platform_interface.dart';
+import '../google_maps_flutter_web.dart';
 
 /// Function that gets the [MapConfiguration] for a given `mapId`.
 typedef ConfigurationProvider = MapConfiguration Function(int mapId);
 
+/// Function that gets the [ClusterManagersController] for a given `mapId`.
+typedef ClusterManagersControllerProvider = ClusterManagersController? Function(
+    int mapId);
+
 /// This platform implementation allows inspecting the running maps.
 class GoogleMapsInspectorWeb extends GoogleMapsInspectorPlatform {
   /// Build an "inspector" that is able to look into maps.
-  GoogleMapsInspectorWeb(ConfigurationProvider configurationProvider)
-      : _configurationProvider = configurationProvider;
+  GoogleMapsInspectorWeb(ConfigurationProvider configurationProvider,
+      ClusterManagersControllerProvider clusterManagersControllerProvider)
+      : _configurationProvider = configurationProvider,
+        _clusterManagersControllerProvider = clusterManagersControllerProvider;
 
   final ConfigurationProvider _configurationProvider;
+  final ClusterManagersControllerProvider _clusterManagersControllerProvider;
 
   @override
   Future<bool> areBuildingsEnabled({required int mapId}) async {
@@ -85,4 +93,14 @@ class GoogleMapsInspectorWeb extends GoogleMapsInspectorPlatform {
   Future<bool> isTrafficEnabled({required int mapId}) async {
     return _configurationProvider(mapId).trafficEnabled ?? false;
   }
+
+  @override
+  Future<List<Cluster>> getClusters({
+    required int mapId,
+    required ClusterManagerId clusterManagerId,
+  }) async {
+    return _clusterManagersControllerProvider(mapId)
+            ?.getClusters(clusterManagerId) ??
+        <Cluster>[];
+  }
 }