WIFI connection support added

app/test/services/app_settings_repository_test.dart

@@ -3,6 +3,7 @@ import 'package:flutter_test/flutter_test.dart';
 
 import 'package:dmc_app/services/database/app_database.dart';
 import 'package:dmc_app/services/database/app_settings_repository.dart';
+import 'package:dmc_app/transport/connection_type.dart';
 
 void main() {
   late AppDatabase db;
@@ -75,4 +76,34 @@ void main() {
     expect(settings.connectionDeviceAddress, 'AA:BB:CC:DD:EE:FF');
     expect(settings.connectionAutoConnect, isFalse);
   });
+
+  test('Verbindungsart: Standard ist Bluetooth, Port-Vorgabe 14550', () async {
+    final settings = await repository.load();
+    expect(settings.connectionType, ConnectionType.bluetooth);
+    expect(settings.connectionWifiHost, isNull);
+    expect(settings.connectionWifiPort, 14550);
+  });
+
+  test('setConnectionType merkt sich die gewaehlte Verbindungsart', () async {
+    await repository.setConnectionType(ConnectionType.wifi);
+
+    final settings = await repository.load();
+    expect(settings.connectionType, ConnectionType.wifi);
+  });
+
+  test('setConnectionWifiHost/-Port merken sich Host und Port unabhaengig',
+      () async {
+    await repository.setConnectionWifiHost('192.168.4.1');
+    await repository.setConnectionWifiPort(15000);
+
+    expect(await repository.loadConnectionWifiHost(), '192.168.4.1');
+    expect(await repository.loadConnectionWifiPort(), 15000);
+  });
+
+  test('setConnectionWifiHost(null) loescht die Vorgabe wieder', () async {
+    await repository.setConnectionWifiHost('192.168.4.1');
+    await repository.setConnectionWifiHost(null);
+
+    expect(await repository.loadConnectionWifiHost(), isNull);
+  });
 }