// Copyright 2014 The Flutter Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. import 'package:flutter/cupertino.dart'; import 'package:flutter_test/flutter_test.dart'; void main() { TestWidgetsFlutterBinding.ensureInitialized(); testWidgets('can press', (WidgetTester tester) async { bool pressed = false; await tester.pumpWidget( CupertinoApp( home: Center( child: CupertinoDesktopTextSelectionToolbarButton( child: const Text('Tap me'), onPressed: () { pressed = true; }, ), ), ), ); expect(pressed, false); await tester.tap(find.byType(CupertinoDesktopTextSelectionToolbarButton)); expect(pressed, true); }); testWidgets('pressedOpacity defaults to 0.1', (WidgetTester tester) async { await tester.pumpWidget( CupertinoApp( home: Center( child: CupertinoDesktopTextSelectionToolbarButton( child: const Text('Tap me'), onPressed: () { }, ), ), ), ); // Original at full opacity. FadeTransition opacity = tester.widget(find.descendant( of: find.byType(CupertinoDesktopTextSelectionToolbarButton), matching: find.byType(FadeTransition), )); expect(opacity.opacity.value, 1.0); // Make a "down" gesture on the button. final Offset center = tester.getCenter(find.byType(CupertinoDesktopTextSelectionToolbarButton)); final TestGesture gesture = await tester.startGesture(center); await tester.pumpAndSettle(); // Opacity reduces during the down gesture. opacity = tester.widget(find.descendant( of: find.byType(CupertinoDesktopTextSelectionToolbarButton), matching: find.byType(FadeTransition), )); expect(opacity.opacity.value, 0.7); // Release the down gesture. await gesture.up(); await tester.pumpAndSettle(); // Opacity is back to normal. opacity = tester.widget(find.descendant( of: find.byType(CupertinoDesktopTextSelectionToolbarButton), matching: find.byType(FadeTransition), )); expect(opacity.opacity.value, 1.0); }); }