// 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/material.dart';
import 'package:flutter_api_samples/material/scaffold/scaffold_messenger_state.show_snack_bar.2.dart'
    as example;
import 'package:flutter_test/flutter_test.dart';

void main() {
  testWidgets(
    'ScaffoldMessenger showSnackBar animation can be customized using AnimationStyle',
    (WidgetTester tester) async {
      await tester.pumpWidget(const example.SnackBarApp());

      // Tap the button to show the SnackBar with default animation style.
      await tester.tap(find.byType(ElevatedButton));
      await tester.pump();
      await tester.pump(
        const Duration(milliseconds: 125),
      ); // Advance the animation by 125ms.

      expect(
        tester.getTopLeft(find.text('I am a snack bar.')).dy,
        closeTo(576.7, 0.1),
      );

      await tester.pump(
        const Duration(milliseconds: 125),
      ); // Advance the animation by 125ms.

      expect(
        tester.getTopLeft(find.text('I am a snack bar.')).dy,
        closeTo(566, 0.1),
      );

      // Tap the close button to dismiss the SnackBar.
      await tester.tap(find.byType(IconButton));
      await tester.pump();
      await tester.pump(
        const Duration(milliseconds: 250),
      ); // Advance the animation by 250ms.

      expect(
        tester.getTopLeft(find.text('I am a snack bar.')).dy,
        closeTo(614, 0.1),
      );

      // Select custom animation style.
      await tester.tap(find.text('Custom'));
      await tester.pumpAndSettle();

      // Tap the button to show the SnackBar with custom animation style.
      await tester.tap(find.byType(ElevatedButton));
      await tester.pump();
      await tester.pump(
        const Duration(milliseconds: 1500),
      ); // Advance the animation by 125ms.

      expect(
        tester.getTopLeft(find.text('I am a snack bar.')).dy,
        closeTo(576.7, 0.1),
      );

      await tester.pump(
        const Duration(milliseconds: 1500),
      ); // Advance the animation by 125ms.

      expect(
        tester.getTopLeft(find.text('I am a snack bar.')).dy,
        closeTo(566, 0.1),
      );

      // Tap the close button to dismiss the SnackBar.
      await tester.tap(find.byType(IconButton));
      await tester.pump();
      await tester.pump(
        const Duration(seconds: 1),
      ); // Advance the animation by 1sec.

      expect(
        tester.getTopLeft(find.text('I am a snack bar.')).dy,
        closeTo(614, 0.1),
      );

      // Select no animation style.
      await tester.tap(find.text('None'));
      await tester.pumpAndSettle();

      // Tap the button to show the SnackBar with no animation style.
      await tester.tap(find.byType(ElevatedButton));
      await tester.pump();

      expect(
        tester.getTopLeft(find.text('I am a snack bar.')).dy,
        closeTo(566, 0.1),
      );

      // Tap the close button to dismiss the SnackBar.
      await tester.tap(find.byType(IconButton));
      await tester.pump();

      expect(find.text('I am a snack bar.'), findsNothing);
    },
  );
}