Failed to load dynamic library 'rive_native.dll' in test

Description

I upgraded Rive to 0.14.0-dev.10 to display a RiveWidgetBuilder. The app works but my tests are broken with the message Failed to load dynamic library 'rive_native.dll'.

I used rive 0.13.1 because of another problem in tests, described in this issue : https://github.com/rive-app/rive-flutter/issues/354.

Steps To Reproduce

Steps to reproduce the behavior:

1. Create an app with a RiveWidgetBuilder
2. Create a simple test file with

testWidgets("should display page", (tester) async {
    await tester.pumpWidget(MyRiveWidget());
    await tester.pumpAndSettle();
});

3. Run the test and you should see the message

The following ArgumentError was thrown building MyRiveWidget:
Invalid argument(s): Failed to load dynamic library 'rive_native.dll': error code 126

Source .riv/.rev file

Reproduced with this file : https://rive.app/marketplace/2997-6322-darklight-switch/
But I suppose it can be reproduced with any rive file

Expected behavior

The tests should run

Flutter Versions

Flutter 3.35.4 • channel stable • https://github.com/flutter/flutter.git
Framework • revision d693b4b9db (4 weeks ago) • 2025-09-16 14:27:41 +0000
Engine • hash feee8ee8fb8b975dd9990f86d3bda11e6e75faf3 (revision c298091351) (28 days ago) • 2025-09-15 14:04:24.000Z
Tools • Dart 3.9.2 • DevTools 2.48.0

Start by reproducing the simple widget test using RiveWidgetBuilder and the linked .riv asset, then trace where rive_native.dll is loaded during the test. Done means the test runs successfully with rive 0.14.0-dev.10 without the dynamic-library error.