From 507e6cd7074511d05f1388848f4f0856f7308864 Mon Sep 17 00:00:00 2001
From: Vladimir Babin <vovababin@gmail.com>
Date: Thu, 3 Sep 2026 06:46:42 +0300
Subject: [PATCH] fix(battery_plus): invoke client.close() on Linux
 batteryState getter

The Linux batteryState getter passed a tear-off (client.close) to
whenComplete instead of calling it (client.close()), so the UPower
client was never closed after reading the state. The sibling
batteryLevel getter already calls client.close() correctly.
---
 .../battery_plus/lib/src/battery_plus_linux.dart      |  2 +-
 .../battery_plus/test/battery_plus_linux_test.dart    | 11 +++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/packages/battery_plus/battery_plus/lib/src/battery_plus_linux.dart b/packages/battery_plus/battery_plus/lib/src/battery_plus_linux.dart
index 89ab9b778f..7bd4fc2c3f 100644
--- a/packages/battery_plus/battery_plus/lib/src/battery_plus_linux.dart
+++ b/packages/battery_plus/battery_plus/lib/src/battery_plus_linux.dart
@@ -54,7 +54,7 @@ class BatteryPlusLinuxPlugin extends BatteryPlatform {
     return client
         .connect()
         .then((_) => client.displayDevice.state.toBatteryState())
-        .whenComplete(() => client.close);
+        .whenComplete(() => client.close());
   }
 
   /// Fires whenever the battery state changes.
diff --git a/packages/battery_plus/battery_plus/test/battery_plus_linux_test.dart b/packages/battery_plus/battery_plus/test/battery_plus_linux_test.dart
index 7f86b691eb..a41880521c 100644
--- a/packages/battery_plus/battery_plus/test/battery_plus_linux_test.dart
+++ b/packages/battery_plus/battery_plus/test/battery_plus_linux_test.dart
@@ -29,6 +29,17 @@ void main() {
     expect(battery.batteryState, completion(BatteryState.charging));
   });
 
+  test('battery state closes the client', () async {
+    late MockUPowerClient client;
+    final battery = BatteryPlusLinuxPlugin();
+    battery.createClient = () {
+      client = createMockClient(state: UPowerDeviceState.charging);
+      return client;
+    };
+    await battery.batteryState;
+    verify(client.close()).called(1);
+  });
+
   test('battery state changes', () {
     final battery = BatteryPlusLinuxPlugin();
     battery.createClient = () {