Source Code added

mobile/test/modules/utils/throttler_test.dart

@@ -0,0 +1,46 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:immich_mobile/utils/throttle.dart';
+import 'package:immich_mobile/utils/debug_print.dart';
+
+class _Counter {
+  int _count = 0;
+  _Counter();
+
+  int get count => _count;
+  void increment() {
+    dPrint(() => "Counter inside increment: $count");
+    _count = _count + 1;
+  }
+}
+
+void main() {
+  test('Executes the method immediately if no calls received previously', () async {
+    var counter = _Counter();
+    final throttler = Throttler(interval: const Duration(milliseconds: 300));
+    throttler.run(() => counter.increment());
+    expect(counter.count, 1);
+  });
+
+  test('Does not execute calls before throttle interval', () async {
+    var counter = _Counter();
+    final throttler = Throttler(interval: const Duration(milliseconds: 100));
+    throttler.run(() => counter.increment());
+    throttler.run(() => counter.increment());
+    throttler.run(() => counter.increment());
+    throttler.run(() => counter.increment());
+    throttler.run(() => counter.increment());
+    await Future.delayed(const Duration(seconds: 1));
+    expect(counter.count, 1);
+  });
+
+  test('Executes the method if received in intervals', () async {
+    var counter = _Counter();
+    final throttler = Throttler(interval: const Duration(milliseconds: 100));
+    for (final _ in Iterable<int>.generate(10)) {
+      throttler.run(() => counter.increment());
+      await Future.delayed(const Duration(milliseconds: 50));
+    }
+    await Future.delayed(const Duration(seconds: 1));
+    expect(counter.count, 5);
+  });
+}