Make sure that a CupertinoButton doesn't crash in 0x0 environment (#178629)

This is my attempt to handle
#6537 for the CupertinoButton
widget.

Co-authored-by: Tong Mu <dkwingsmt@users.noreply.github.com>

Author: ahmedsameha1

packages/flutter/test/cupertino/button_test.dart

@@ -1124,6 +1124,19 @@ void main() {
     );
     expect(text.text.style?.color, customForegroundColor);
   });
+
+  testWidgets('CupertinoButton does not crash at zero area', (WidgetTester tester) async {
+    await tester.pumpWidget(
+      CupertinoApp(
+        home: Center(
+          child: SizedBox.shrink(
+            child: CupertinoButton(child: const Text('X'), onPressed: () {}),
+          ),
+        ),
+      ),
+    );
+    expect(tester.getSize(find.byType(CupertinoButton)), Size.zero);
+  });
 }
 
 Widget boilerplate({required Widget child}) {