diff --git a/lib/model/entry/extensions/metadata_edition.dart b/lib/model/entry/extensions/metadata_edition.dart
index c28c26d8d..725505ee8 100644
--- a/lib/model/entry/extensions/metadata_edition.dart
+++ b/lib/model/entry/extensions/metadata_edition.dart
@@ -82,7 +82,7 @@ extension ExtraAvesEntryMetadataEdition on AvesEntry {
     return dataTypes;
   }
 
-  static final removalLocation = LatLng(0, 0);
+  static const removalLocation = LatLng(0, 0);
 
   Future<Set<EntryDataType>> editLocation(LatLng? latLng) async {
     final dataTypes = <EntryDataType>{};
diff --git a/lib/ref/poi.dart b/lib/ref/poi.dart
index 951239d39..1b7b3ee01 100644
--- a/lib/ref/poi.dart
+++ b/lib/ref/poi.dart
@@ -1,9 +1,9 @@
 import 'package:latlong2/latlong.dart';
 
 class PointsOfInterest {
-  static final pointNemo = LatLng(-48.876667, -123.393333);
+  static const pointNemo = LatLng(-48.876667, -123.393333);
 
-  static final wonders = [
+  static const wonders = [
     LatLng(29.979167, 31.134167),
     LatLng(36.451000, 28.223615),
     LatLng(32.5355, 44.4275),
diff --git a/lib/widgets/common/map/leaflet/latlng_utils.dart b/lib/widgets/common/map/leaflet/latlng_utils.dart
index 35867b4ec..adec5d192 100644
--- a/lib/widgets/common/map/leaflet/latlng_utils.dart
+++ b/lib/widgets/common/map/leaflet/latlng_utils.dart
@@ -4,8 +4,8 @@ class LatLngUtils {
   static LatLng? lerp(LatLng? a, LatLng? b, double t) {
     if (a == null && b == null) return null;
 
-    final _a = a ?? LatLng(0, 0);
-    final _b = b ?? LatLng(0, 0);
+    final _a = a ?? const LatLng(0, 0);
+    final _b = b ?? const LatLng(0, 0);
     return LatLng(
       _a.latitude + (_b.latitude - _a.latitude) * t,
       _a.longitude + (_b.longitude - _a.longitude) * t,
diff --git a/plugins/aves_magnifier/lib/src/core/core.dart b/plugins/aves_magnifier/lib/src/core/core.dart
index 53cb4da9a..bbb9fa2f3 100644
--- a/plugins/aves_magnifier/lib/src/core/core.dart
+++ b/plugins/aves_magnifier/lib/src/core/core.dart
@@ -12,7 +12,6 @@ import 'package:aves_utils/aves_utils.dart';
 import 'package:equatable/equatable.dart';
 import 'package:flutter/gestures.dart';
 import 'package:flutter/widgets.dart';
-import 'package:tuple/tuple.dart';
 
 /*
   adapted from package `photo_view` v0.9.2:
@@ -162,7 +161,7 @@ class _AvesMagnifierState extends State<AvesMagnifier> with TickerProviderStateM
 
   Stopwatch? _scaleStopwatch;
   VelocityTracker? _velocityTracker;
-  var _mayFlingLTRB = const Tuple4(false, false, false, false);
+  var _mayFlingLTRB = const (false, false, false, false);
 
   void onScaleStart(ScaleStartDetails details, bool doubleTap) {
     final boundaries = scaleBoundaries;
@@ -172,7 +171,7 @@ class _AvesMagnifierState extends State<AvesMagnifier> with TickerProviderStateM
 
     _scaleStopwatch = Stopwatch()..start();
     _velocityTracker = VelocityTracker.withKind(_flingPointerKind);
-    _mayFlingLTRB = const Tuple4(true, true, true, true);
+    _mayFlingLTRB = const (true, true, true, true);
     _updateMayFling();
 
     _startScale = scale;
@@ -246,9 +245,8 @@ class _AvesMagnifierState extends State<AvesMagnifier> with TickerProviderStateM
     final estimate = _velocityTracker?.getVelocityEstimate();
     final onFling = widget.onFling;
     if (estimate != null && onFling != null) {
+      final (left, up, right, down) = _mayFlingLTRB;
       if (_isFlingGesture(estimate, _flingPointerKind, Axis.horizontal)) {
-        final left = _mayFlingLTRB.item1;
-        final right = _mayFlingLTRB.item3;
         if (left ^ right) {
           if (left) {
             onFling(AxisDirection.left);
@@ -257,8 +255,6 @@ class _AvesMagnifierState extends State<AvesMagnifier> with TickerProviderStateM
           }
         }
       } else if (_isFlingGesture(estimate, _flingPointerKind, Axis.vertical)) {
-        final up = _mayFlingLTRB.item2;
-        final down = _mayFlingLTRB.item4;
         if (up ^ down) {
           if (up) {
             onFling(AxisDirection.up);
@@ -320,11 +316,12 @@ class _AvesMagnifierState extends State<AvesMagnifier> with TickerProviderStateM
   void _updateMayFling() {
     final xHit = getXEdgeHit();
     final yHit = getYEdgeHit();
-    _mayFlingLTRB = Tuple4(
-      _mayFlingLTRB.item1 && xHit.hasHitMin,
-      _mayFlingLTRB.item2 && yHit.hasHitMin,
-      _mayFlingLTRB.item3 && xHit.hasHitMax,
-      _mayFlingLTRB.item4 && yHit.hasHitMax,
+    final (left, up, right, down) = _mayFlingLTRB;
+    _mayFlingLTRB = (
+      xHit.hasHitMin && left,
+      yHit.hasHitMin && up,
+      xHit.hasHitMax && right,
+      yHit.hasHitMax && down,
     );
   }
 
diff --git a/plugins/aves_magnifier/pubspec.lock b/plugins/aves_magnifier/pubspec.lock
index 5f7bbc3f6..4ef092e2f 100644
--- a/plugins/aves_magnifier/pubspec.lock
+++ b/plugins/aves_magnifier/pubspec.lock
@@ -98,14 +98,6 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.99"
-  tuple:
-    dependency: "direct main"
-    description:
-      name: tuple
-      sha256: "0ea99cd2f9352b2586583ab2ce6489d1f95a5f6de6fb9492faaf97ae2060f0aa"
-      url: "https://pub.dev"
-    source: hosted
-    version: "2.0.1"
   vector_math:
     dependency: transitive
     description:
diff --git a/plugins/aves_magnifier/pubspec.yaml b/plugins/aves_magnifier/pubspec.yaml
index cb6f1a9c7..d51f0aa56 100644
--- a/plugins/aves_magnifier/pubspec.yaml
+++ b/plugins/aves_magnifier/pubspec.yaml
@@ -12,7 +12,6 @@ dependencies:
     path: ../aves_utils
   equatable:
   provider:
-  tuple:
 
 dev_dependencies:
   flutter_lints:
diff --git a/plugins/aves_map/lib/src/zoomed_bounds.dart b/plugins/aves_map/lib/src/zoomed_bounds.dart
index d0ccc1d73..a66b3c8f9 100644
--- a/plugins/aves_map/lib/src/zoomed_bounds.dart
+++ b/plugins/aves_map/lib/src/zoomed_bounds.dart
@@ -23,8 +23,7 @@ class ZoomedBounds extends Equatable {
     final swPoint = _crs.latLngToPoint(sw, zoom);
     final nePoint = _crs.latLngToPoint(ne, zoom);
     // assume no padding around bounds
-    final projectedCenter = _crs.pointToLatLng((swPoint + nePoint) / 2, zoom);
-    return projectedCenter ?? GeoUtils.getLatLngCenter([sw, ne]);
+    return _crs.pointToLatLng((swPoint + nePoint) / 2, zoom);
   }
 
   @override
diff --git a/plugins/aves_map/pubspec.lock b/plugins/aves_map/pubspec.lock
index a3e069de4..74fd8aa4e 100644
--- a/plugins/aves_map/pubspec.lock
+++ b/plugins/aves_map/pubspec.lock
@@ -81,18 +81,18 @@ packages:
     dependency: "direct main"
     description:
       name: flutter_map
-      sha256: "52c65a977daae42f9aae6748418dd1535eaf27186e9bac9bf431843082bc75a3"
+      sha256: "5286f72f87deb132daa1489442d6cc46e986fc105cb727d9ae1b602b35b1d1f3"
       url: "https://pub.dev"
     source: hosted
-    version: "4.0.0"
+    version: "5.0.0"
   http:
     dependency: transitive
     description:
       name: http
-      sha256: "5895291c13fa8a3bd82e76d5627f69e0d85ca6a30dcac95c4ea19a5d555879c2"
+      sha256: "4c3f04bfb64d3efd508d06b41b825542f08122d30bda4933fb95c069d22a4fa3"
       url: "https://pub.dev"
     source: hosted
-    version: "0.13.6"
+    version: "1.0.0"
   http_parser:
     dependency: transitive
     description:
@@ -121,10 +121,10 @@ packages:
     dependency: "direct main"
     description:
       name: latlong2
-      sha256: "08ef7282ba9f76e8495e49e2dc4d653015ac929dce5f92b375a415d30b407ea0"
+      sha256: "18712164760cee655bc790122b0fd8f3d5b3c36da2cb7bf94b68a197fbb0811b"
       url: "https://pub.dev"
     source: hosted
-    version: "0.8.2"
+    version: "0.9.0"
   lints:
     dependency: transitive
     description:
@@ -234,14 +234,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.2.1"
-  tuple:
-    dependency: transitive
-    description:
-      name: tuple
-      sha256: "0ea99cd2f9352b2586583ab2ce6489d1f95a5f6de6fb9492faaf97ae2060f0aa"
-      url: "https://pub.dev"
-    source: hosted
-    version: "2.0.1"
   typed_data:
     dependency: transitive
     description:
@@ -276,4 +268,4 @@ packages:
     version: "2.0.0"
 sdks:
   dart: ">=3.0.0 <4.0.0"
-  flutter: ">=3.3.0"
+  flutter: ">=3.10.0"
diff --git a/plugins/aves_services/pubspec.lock b/plugins/aves_services/pubspec.lock
index 2855f37c9..33f4d23e7 100644
--- a/plugins/aves_services/pubspec.lock
+++ b/plugins/aves_services/pubspec.lock
@@ -88,18 +88,18 @@ packages:
     dependency: transitive
     description:
       name: flutter_map
-      sha256: "52c65a977daae42f9aae6748418dd1535eaf27186e9bac9bf431843082bc75a3"
+      sha256: "5286f72f87deb132daa1489442d6cc46e986fc105cb727d9ae1b602b35b1d1f3"
       url: "https://pub.dev"
     source: hosted
-    version: "4.0.0"
+    version: "5.0.0"
   http:
     dependency: transitive
     description:
       name: http
-      sha256: "5895291c13fa8a3bd82e76d5627f69e0d85ca6a30dcac95c4ea19a5d555879c2"
+      sha256: "4c3f04bfb64d3efd508d06b41b825542f08122d30bda4933fb95c069d22a4fa3"
       url: "https://pub.dev"
     source: hosted
-    version: "0.13.6"
+    version: "1.0.0"
   http_parser:
     dependency: transitive
     description:
@@ -128,10 +128,10 @@ packages:
     dependency: "direct main"
     description:
       name: latlong2
-      sha256: "08ef7282ba9f76e8495e49e2dc4d653015ac929dce5f92b375a415d30b407ea0"
+      sha256: "18712164760cee655bc790122b0fd8f3d5b3c36da2cb7bf94b68a197fbb0811b"
       url: "https://pub.dev"
     source: hosted
-    version: "0.8.2"
+    version: "0.9.0"
   lints:
     dependency: transitive
     description:
@@ -241,14 +241,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.2.1"
-  tuple:
-    dependency: transitive
-    description:
-      name: tuple
-      sha256: "0ea99cd2f9352b2586583ab2ce6489d1f95a5f6de6fb9492faaf97ae2060f0aa"
-      url: "https://pub.dev"
-    source: hosted
-    version: "2.0.1"
   typed_data:
     dependency: transitive
     description:
@@ -283,4 +275,4 @@ packages:
     version: "2.0.0"
 sdks:
   dart: ">=3.0.0 <4.0.0"
-  flutter: ">=3.3.0"
+  flutter: ">=3.10.0"
diff --git a/plugins/aves_services_google/pubspec.lock b/plugins/aves_services_google/pubspec.lock
index 0c9a30818..455169328 100644
--- a/plugins/aves_services_google/pubspec.lock
+++ b/plugins/aves_services_google/pubspec.lock
@@ -127,10 +127,10 @@ packages:
     dependency: transitive
     description:
       name: flutter_map
-      sha256: "52c65a977daae42f9aae6748418dd1535eaf27186e9bac9bf431843082bc75a3"
+      sha256: "5286f72f87deb132daa1489442d6cc46e986fc105cb727d9ae1b602b35b1d1f3"
       url: "https://pub.dev"
     source: hosted
-    version: "4.0.0"
+    version: "5.0.0"
   flutter_plugin_android_lifecycle:
     dependency: transitive
     description:
@@ -204,10 +204,10 @@ packages:
     dependency: transitive
     description:
       name: http
-      sha256: "5895291c13fa8a3bd82e76d5627f69e0d85ca6a30dcac95c4ea19a5d555879c2"
+      sha256: "4c3f04bfb64d3efd508d06b41b825542f08122d30bda4933fb95c069d22a4fa3"
       url: "https://pub.dev"
     source: hosted
-    version: "0.13.6"
+    version: "1.0.0"
   http_parser:
     dependency: transitive
     description:
@@ -236,10 +236,10 @@ packages:
     dependency: "direct main"
     description:
       name: latlong2
-      sha256: "08ef7282ba9f76e8495e49e2dc4d653015ac929dce5f92b375a415d30b407ea0"
+      sha256: "18712164760cee655bc790122b0fd8f3d5b3c36da2cb7bf94b68a197fbb0811b"
       url: "https://pub.dev"
     source: hosted
-    version: "0.8.2"
+    version: "0.9.0"
   lints:
     dependency: transitive
     description:
@@ -365,14 +365,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.2.1"
-  tuple:
-    dependency: transitive
-    description:
-      name: tuple
-      sha256: "0ea99cd2f9352b2586583ab2ce6489d1f95a5f6de6fb9492faaf97ae2060f0aa"
-      url: "https://pub.dev"
-    source: hosted
-    version: "2.0.1"
   typed_data:
     dependency: transitive
     description:
@@ -423,4 +415,4 @@ packages:
     version: "2.0.0"
 sdks:
   dart: ">=3.0.0 <4.0.0"
-  flutter: ">=3.3.0"
+  flutter: ">=3.10.0"
diff --git a/plugins/aves_services_huawei/pubspec.lock b/plugins/aves_services_huawei/pubspec.lock
index 4460f1bde..b4b26f4e8 100644
--- a/plugins/aves_services_huawei/pubspec.lock
+++ b/plugins/aves_services_huawei/pubspec.lock
@@ -102,18 +102,18 @@ packages:
     dependency: transitive
     description:
       name: flutter_map
-      sha256: "52c65a977daae42f9aae6748418dd1535eaf27186e9bac9bf431843082bc75a3"
+      sha256: "5286f72f87deb132daa1489442d6cc46e986fc105cb727d9ae1b602b35b1d1f3"
       url: "https://pub.dev"
     source: hosted
-    version: "4.0.0"
+    version: "5.0.0"
   http:
     dependency: transitive
     description:
       name: http
-      sha256: "5895291c13fa8a3bd82e76d5627f69e0d85ca6a30dcac95c4ea19a5d555879c2"
+      sha256: "4c3f04bfb64d3efd508d06b41b825542f08122d30bda4933fb95c069d22a4fa3"
       url: "https://pub.dev"
     source: hosted
-    version: "0.13.6"
+    version: "1.0.0"
   http_parser:
     dependency: transitive
     description:
@@ -160,10 +160,10 @@ packages:
     dependency: "direct main"
     description:
       name: latlong2
-      sha256: "08ef7282ba9f76e8495e49e2dc4d653015ac929dce5f92b375a415d30b407ea0"
+      sha256: "18712164760cee655bc790122b0fd8f3d5b3c36da2cb7bf94b68a197fbb0811b"
       url: "https://pub.dev"
     source: hosted
-    version: "0.8.2"
+    version: "0.9.0"
   lints:
     dependency: transitive
     description:
@@ -281,14 +281,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.2.1"
-  tuple:
-    dependency: transitive
-    description:
-      name: tuple
-      sha256: "0ea99cd2f9352b2586583ab2ce6489d1f95a5f6de6fb9492faaf97ae2060f0aa"
-      url: "https://pub.dev"
-    source: hosted
-    version: "2.0.1"
   typed_data:
     dependency: transitive
     description:
@@ -323,4 +315,4 @@ packages:
     version: "2.0.0"
 sdks:
   dart: ">=3.0.0 <4.0.0"
-  flutter: ">=3.3.0"
+  flutter: ">=3.10.0"
diff --git a/plugins/aves_services_none/pubspec.lock b/plugins/aves_services_none/pubspec.lock
index c5c70e4c5..ece40bb07 100644
--- a/plugins/aves_services_none/pubspec.lock
+++ b/plugins/aves_services_none/pubspec.lock
@@ -95,18 +95,18 @@ packages:
     dependency: transitive
     description:
       name: flutter_map
-      sha256: "52c65a977daae42f9aae6748418dd1535eaf27186e9bac9bf431843082bc75a3"
+      sha256: "5286f72f87deb132daa1489442d6cc46e986fc105cb727d9ae1b602b35b1d1f3"
       url: "https://pub.dev"
     source: hosted
-    version: "4.0.0"
+    version: "5.0.0"
   http:
     dependency: transitive
     description:
       name: http
-      sha256: "5895291c13fa8a3bd82e76d5627f69e0d85ca6a30dcac95c4ea19a5d555879c2"
+      sha256: "4c3f04bfb64d3efd508d06b41b825542f08122d30bda4933fb95c069d22a4fa3"
       url: "https://pub.dev"
     source: hosted
-    version: "0.13.6"
+    version: "1.0.0"
   http_parser:
     dependency: transitive
     description:
@@ -135,10 +135,10 @@ packages:
     dependency: "direct main"
     description:
       name: latlong2
-      sha256: "08ef7282ba9f76e8495e49e2dc4d653015ac929dce5f92b375a415d30b407ea0"
+      sha256: "18712164760cee655bc790122b0fd8f3d5b3c36da2cb7bf94b68a197fbb0811b"
       url: "https://pub.dev"
     source: hosted
-    version: "0.8.2"
+    version: "0.9.0"
   lints:
     dependency: transitive
     description:
@@ -248,14 +248,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.2.1"
-  tuple:
-    dependency: transitive
-    description:
-      name: tuple
-      sha256: "0ea99cd2f9352b2586583ab2ce6489d1f95a5f6de6fb9492faaf97ae2060f0aa"
-      url: "https://pub.dev"
-    source: hosted
-    version: "2.0.1"
   typed_data:
     dependency: transitive
     description:
@@ -290,4 +282,4 @@ packages:
     version: "2.0.0"
 sdks:
   dart: ">=3.0.0 <4.0.0"
-  flutter: ">=3.3.0"
+  flutter: ">=3.10.0"
diff --git a/pubspec.lock b/pubspec.lock
index b541bac71..54c1bb117 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -479,10 +479,10 @@ packages:
     dependency: "direct main"
     description:
       name: flutter_map
-      sha256: "52c65a977daae42f9aae6748418dd1535eaf27186e9bac9bf431843082bc75a3"
+      sha256: "5286f72f87deb132daa1489442d6cc46e986fc105cb727d9ae1b602b35b1d1f3"
       url: "https://pub.dev"
     source: hosted
-    version: "4.0.0"
+    version: "5.0.0"
   flutter_markdown:
     dependency: "direct main"
     description:
@@ -614,10 +614,10 @@ packages:
     dependency: transitive
     description:
       name: http
-      sha256: "5895291c13fa8a3bd82e76d5627f69e0d85ca6a30dcac95c4ea19a5d555879c2"
+      sha256: "4c3f04bfb64d3efd508d06b41b825542f08122d30bda4933fb95c069d22a4fa3"
       url: "https://pub.dev"
     source: hosted
-    version: "0.13.6"
+    version: "1.0.0"
   http_multi_server:
     dependency: transitive
     description:
@@ -670,10 +670,10 @@ packages:
     dependency: "direct main"
     description:
       name: latlong2
-      sha256: "08ef7282ba9f76e8495e49e2dc4d653015ac929dce5f92b375a415d30b407ea0"
+      sha256: "18712164760cee655bc790122b0fd8f3d5b3c36da2cb7bf94b68a197fbb0811b"
       url: "https://pub.dev"
     source: hosted
-    version: "0.8.2"
+    version: "0.9.0"
   lints:
     dependency: transitive
     description:
diff --git a/test/model/collection_source_test.dart b/test/model/collection_source_test.dart
index a8249b240..7a0dee3bd 100644
--- a/test/model/collection_source_test.dart
+++ b/test/model/collection_source_test.dart
@@ -46,7 +46,7 @@ void main() {
   const destinationAlbum = '${FakeStorageService.primaryPath}Pictures/destination';
 
   const aTag = 'sometag';
-  final australiaLatLng = LatLng(-26, 141);
+  const australiaLatLng = LatLng(-26, 141);
   const australiaAddress = AddressDetails(
     id: 0,
     countryCode: 'AU',
diff --git a/test/model/filters_test.dart b/test/model/filters_test.dart
index fe50208fe..44781b96c 100644
--- a/test/model/filters_test.dart
+++ b/test/model/filters_test.dart
@@ -41,7 +41,7 @@ void main() {
     final aspectRatio = AspectRatioFilter.landscape;
     expect(aspectRatio, jsonRoundTrip(aspectRatio));
 
-    final bounds = CoordinateFilter(LatLng(29.979167, 28.223615), LatLng(36.451000, 31.134167));
+    final bounds = CoordinateFilter(const LatLng(29.979167, 28.223615), const LatLng(36.451000, 31.134167));
     expect(bounds, jsonRoundTrip(bounds));
 
     final date = DateFilter(DateLevel.ym, DateTime(1969, 7));
diff --git a/test/utils/geo_utils_test.dart b/test/utils/geo_utils_test.dart
index 8fe3fef49..11f862a32 100644
--- a/test/utils/geo_utils_test.dart
+++ b/test/utils/geo_utils_test.dart
@@ -8,18 +8,18 @@ import 'package:test/test.dart';
 void main() {
   test('Decimal degrees to DMS (sexagesimal)', () {
     final l10n = lookupAppLocalizations(AvesApp.supportedLocales.first);
-    expect(ExtraCoordinateFormat.toDMS(l10n, LatLng(37.496667, 127.0275)), ['37° 29′ 48.00″ N', '127° 1′ 39.00″ E']); // Gangnam
-    expect(ExtraCoordinateFormat.toDMS(l10n, LatLng(78.9243503, 11.9230465)), ['78° 55′ 27.66″ N', '11° 55′ 22.97″ E']); // Ny-Ålesund
-    expect(ExtraCoordinateFormat.toDMS(l10n, LatLng(-38.6965891, 175.9830047)), ['38° 41′ 47.72″ S', '175° 58′ 58.82″ E']); // Taupo
-    expect(ExtraCoordinateFormat.toDMS(l10n, LatLng(-64.249391, -56.6556145)), ['64° 14′ 57.81″ S', '56° 39′ 20.21″ W']); // Marambio
-    expect(ExtraCoordinateFormat.toDMS(l10n, LatLng(0, 0)), ['0° 0′ 0.00″ N', '0° 0′ 0.00″ E']);
-    expect(ExtraCoordinateFormat.toDMS(l10n, LatLng(0, 0), minuteSecondPadding: true), ['0° 00′ 00.00″ N', '0° 00′ 00.00″ E']);
-    expect(ExtraCoordinateFormat.toDMS(l10n, LatLng(0, 0), secondDecimals: 0), ['0° 0′ 0″ N', '0° 0′ 0″ E']);
-    expect(ExtraCoordinateFormat.toDMS(l10n, LatLng(0, 0), secondDecimals: 4), ['0° 0′ 0.0000″ N', '0° 0′ 0.0000″ E']);
+    expect(ExtraCoordinateFormat.toDMS(l10n, const LatLng(37.496667, 127.0275)), ['37° 29′ 48.00″ N', '127° 1′ 39.00″ E']); // Gangnam
+    expect(ExtraCoordinateFormat.toDMS(l10n, const LatLng(78.9243503, 11.9230465)), ['78° 55′ 27.66″ N', '11° 55′ 22.97″ E']); // Ny-Ålesund
+    expect(ExtraCoordinateFormat.toDMS(l10n, const LatLng(-38.6965891, 175.9830047)), ['38° 41′ 47.72″ S', '175° 58′ 58.82″ E']); // Taupo
+    expect(ExtraCoordinateFormat.toDMS(l10n, const LatLng(-64.249391, -56.6556145)), ['64° 14′ 57.81″ S', '56° 39′ 20.21″ W']); // Marambio
+    expect(ExtraCoordinateFormat.toDMS(l10n, const LatLng(0, 0)), ['0° 0′ 0.00″ N', '0° 0′ 0.00″ E']);
+    expect(ExtraCoordinateFormat.toDMS(l10n, const LatLng(0, 0), minuteSecondPadding: true), ['0° 00′ 00.00″ N', '0° 00′ 00.00″ E']);
+    expect(ExtraCoordinateFormat.toDMS(l10n, const LatLng(0, 0), secondDecimals: 0), ['0° 0′ 0″ N', '0° 0′ 0″ E']);
+    expect(ExtraCoordinateFormat.toDMS(l10n, const LatLng(0, 0), secondDecimals: 4), ['0° 0′ 0.0000″ N', '0° 0′ 0.0000″ E']);
   });
 
   test('bounds center', () {
-    expect(GeoUtils.getLatLngCenter([LatLng(10, 30), LatLng(30, 50)]), LatLng(20.28236664671092, 39.351653000319956));
-    expect(GeoUtils.getLatLngCenter([LatLng(10, -179), LatLng(30, 179)]), LatLng(20.00279344048298, -179.9358157370226));
+    expect(GeoUtils.getLatLngCenter(const [LatLng(10, 30), LatLng(30, 50)]), const LatLng(20.28236664671092, 39.351653000319956));
+    expect(GeoUtils.getLatLngCenter(const [LatLng(10, -179), LatLng(30, 179)]), const LatLng(20.00279344048298, -179.9358157370226));
   });
 }