[google_maps_flutter_platform_interface] cloud-based map styling tests

packages/google_maps_flutter/google_maps_flutter_platform_interface/lib/src/types/utils/map_configuration_serialization.dart

@@ -58,5 +58,7 @@ Map<String, Object> jsonForMapConfiguration(MapConfiguration config) {
     if (config.trafficEnabled != null) 'trafficEnabled': config.trafficEnabled!,
     if (config.buildingsEnabled != null)
       'buildingsEnabled': config.buildingsEnabled!,
+    if (config.cloudMapId != null)
+      'cloudMapId': config.cloudMapId!,
   };
 }

packages/google_maps_flutter/google_maps_flutter_platform_interface/test/types/map_configuration_test.dart

@@ -6,6 +6,8 @@ import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:google_maps_flutter_platform_interface/google_maps_flutter_platform_interface.dart';
 
+const String _kCloudMapId = '000000000000000'; // Dummy map ID.
+
 void main() {
   group('diffs', () {
     // A options instance with every field set, to test diffs against.
@@ -53,6 +55,7 @@ void main() {
       expect(updated.liteModeEnabled, isNot(null));
       expect(updated.padding, isNot(null));
       expect(updated.trafficEnabled, isNot(null));
+      expect(updated.cloudMapId, null);
     });
 
     test('handle compassEnabled', () async {
@@ -281,6 +284,18 @@ void main() {
       // A diff applied to non-empty options should update that field.
       expect(updated.buildingsEnabled, true);
     });
+
+    test('handle cloudMapId', () async {
+      const MapConfiguration diff = MapConfiguration(cloudMapId: _kCloudMapId);
+
+      const MapConfiguration empty = MapConfiguration();
+      final MapConfiguration updated = diffBase.applyDiff(diff);
+
+      // A diff applied to empty options should be the diff itself.
+      expect(empty.applyDiff(diff), diff);
+      // A diff applied to non-empty options should update that field.
+      expect(updated.cloudMapId, _kCloudMapId);
+    });
   });
 
   group('isEmpty', () {
@@ -408,5 +423,11 @@ void main() {
 
       expect(diff.isEmpty, false);
     });
+
+    test('is false with cloudMapId', () async {
+      const MapConfiguration diff = MapConfiguration(cloudMapId: _kCloudMapId);
+
+      expect(diff.isEmpty, false);
+    });
   });
 }

packages/google_maps_flutter/google_maps_flutter_platform_interface/test/utils/map_configuration_serialization_test.dart

@@ -7,6 +7,8 @@ import 'package:flutter_test/flutter_test.dart';
 import 'package:google_maps_flutter_platform_interface/google_maps_flutter_platform_interface.dart';
 import 'package:google_maps_flutter_platform_interface/src/types/utils/map_configuration_serialization.dart';
 
+const String _kCloudMapId = '000000000000000'; // Dummy map ID.
+
 void main() {
   test('empty serialization', () async {
     const MapConfiguration config = MapConfiguration();
@@ -37,6 +39,7 @@ void main() {
       indoorViewEnabled: false,
       trafficEnabled: false,
       buildingsEnabled: false,
+      cloudMapId: _kCloudMapId
     );
 
     final Map<String, Object> json = jsonForMapConfiguration(config);
@@ -69,7 +72,8 @@ void main() {
       'padding': <double>[5.0, 5.0, 5.0, 5.0],
       'indoorEnabled': false,
       'trafficEnabled': false,
-      'buildingsEnabled': false
+      'buildingsEnabled': false,
+      'cloudMapId': _kCloudMapId
     });
   });
 }