defaultPrimeAssets function

Future<void> defaultPrimeAssets(WidgetTester tester)

A function that waits for all Image widgets found in the widget tree to finish decoding.

Currently this supports images included via Image widgets, or as part of BoxDecorations.

See also:

• GoldenToolkitConfiguration.primeAssets to configure a global asset prime function.

Implementation

Future<void> defaultPrimeAssets(WidgetTester tester) async {
  final imageElements = find.byType(Image, skipOffstage: false).evaluate();
  final containerElements =
      find.byType(DecoratedBox, skipOffstage: false).evaluate();
  await tester.runAsync(() async {
    for (final imageElement in imageElements) {
      final widget = imageElement.widget;
      if (widget is Image) {
        await precacheImage(widget.image, imageElement);
      }
    }
    for (final container in containerElements) {
      final widget = container.widget as DecoratedBox;
      final decoration = widget.decoration;
      if (decoration is BoxDecoration) {
        if (decoration.image != null) {
          await precacheImage(decoration.image!.image, container);
        }
      }
    }
  });
}