m3_lightmeter/test/utils/golden_test_set_theme.dart

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import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:lightmeter/data/models/theme_type.dart';
import 'package:lightmeter/providers/user_preferences_provider.dart';
Future<void> setTheme<T>(WidgetTester tester, Key scenarioWidgetKey, ThemeType themeType) async {
final flow = find.descendant(
of: find.byKey(scenarioWidgetKey),
matching: find.byType(T),
);
final BuildContext context = tester.element(flow);
UserPreferencesProvider.of(context).setThemeType(themeType);
await tester.pumpAndSettle();
}