// 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/widgets/sliver/decorated_sliver.0.dart'
    as example;
import 'package:flutter_test/flutter_test.dart';

void main() {
  testWidgets('Verify the texts are displayed', (WidgetTester tester) async {
    await tester.pumpWidget(const example.SliverDecorationExampleApp());

    final Finder moonText = find.text('A moon on a night sky');
    expect(moonText, findsOneWidget);

    final Finder blueSkyText = find.text('A blue sky');
    expect(blueSkyText, findsOneWidget);
  });

  testWidgets(
    'Verify the sliver with key `radial-gradient` has a RadialGradient',
    (WidgetTester tester) async {
      await tester.pumpWidget(const example.SliverDecorationExampleApp());

      final DecoratedSliver radialDecoratedSliver = tester
          .widget<DecoratedSliver>(
            find.byKey(const ValueKey<String>('radial-gradient')),
          );
      expect(
        radialDecoratedSliver.decoration,
        const BoxDecoration(
          gradient: RadialGradient(
            center: Alignment(-0.5, -0.6),
            radius: 0.15,
            colors: <Color>[Color(0xFFEEEEEE), Color(0xFF111133)],
            stops: <double>[0.4, 0.8],
          ),
        ),
      );
    },
  );

  testWidgets(
    'Verify that the sliver with key `linear-gradient` has a LinearGradient',
    (WidgetTester tester) async {
      await tester.pumpWidget(const example.SliverDecorationExampleApp());

      final DecoratedSliver linearDecoratedSliver = tester
          .widget<DecoratedSliver>(
            find.byKey(const ValueKey<String>('linear-gradient')),
          );
      expect(
        linearDecoratedSliver.decoration,
        const BoxDecoration(
          gradient: LinearGradient(
            begin: Alignment.topCenter,
            end: Alignment.bottomCenter,
            colors: <Color>[
              Color(0xFF111133),
              Color(0xFF1A237E),
              Color(0xFF283593),
              Color(0xFF3949AB),
              Color(0xFF3F51B5),
              Color(0xFF1976D2),
              Color(0xFF1E88E5),
              Color(0xFF42A5F5),
            ],
          ),
        ),
      );
    },
  );
}