From 2a88fa0f23fa66a33f6b5637007fa2ea803ffd28 Mon Sep 17 00:00:00 2001
From: Ahmed Mohamed Sameh <ahmedsameha1@gmail.com>
Date: Sat, 6 Dec 2025 01:45:03 +0200
Subject: [PATCH] Make sure that a CupertinoScrollbar doesn't crash in 0x0
 environment (#179442)

This is my attempt to handle
https://github.com/flutter/flutter/issues/6537 for the
CupertinoScrollbar widget.

Co-authored-by: Tong Mu <dkwingsmt@users.noreply.github.com>
---
 packages/flutter/test/cupertino/scrollbar_test.dart | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/packages/flutter/test/cupertino/scrollbar_test.dart b/packages/flutter/test/cupertino/scrollbar_test.dart
index bec7944cecb..91ca7f42244 100644
--- a/packages/flutter/test/cupertino/scrollbar_test.dart
+++ b/packages/flutter/test/cupertino/scrollbar_test.dart
@@ -1347,4 +1347,15 @@ void main() {
         ),
     );
   });
+
+  testWidgets('CupertinoScrollbar does not crash at zero area', (WidgetTester tester) async {
+    await tester.pumpWidget(
+      const CupertinoApp(
+        home: Center(
+          child: SizedBox.shrink(child: CupertinoScrollbar(child: CustomScrollView())),
+        ),
+      ),
+    );
+    expect(tester.getSize(find.byType(CupertinoScrollbar)), Size.zero);
+  });
 }