// 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/material.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter_test/flutter_test.dart';

import '../rendering/mock_canvas.dart';

void main() {

  // The "can be constructed" tests that follow are primarily to ensure that any
  // animations started by the progress indicators are stopped at dispose() time.

  testWidgets('LinearProgressIndicator(value: 0.0) can be constructed and has empty semantics by default', (WidgetTester tester) async {
    final SemanticsHandle handle = tester.ensureSemantics();
    await tester.pumpWidget(
      const Directionality(
        textDirection: TextDirection.ltr,
        child: Center(
          child: SizedBox(
            width: 200.0,
            child: LinearProgressIndicator(value: 0.0),
          ),
        ),
      ),
    );

    expect(tester.getSemantics(find.byType(LinearProgressIndicator)), matchesSemantics());
    handle.dispose();
  });

  testWidgets('LinearProgressIndicator(value: null) can be constructed and has empty semantics by default', (WidgetTester tester) async {
    final SemanticsHandle handle = tester.ensureSemantics();
    await tester.pumpWidget(
      const Directionality(
        textDirection: TextDirection.rtl,
        child: Center(
          child: SizedBox(
            width: 200.0,
            child: LinearProgressIndicator(value: null),
          ),
        ),
      ),
    );

    expect(tester.getSemantics(find.byType(LinearProgressIndicator)), matchesSemantics());
    handle.dispose();
  });

  testWidgets('LinearProgressIndicator custom minHeight', (WidgetTester tester) async {
    await tester.pumpWidget(
      const Directionality(
        textDirection: TextDirection.ltr,
        child: Center(
          child: SizedBox(
            width: 200.0,
            child: LinearProgressIndicator(value: 0.25, minHeight: 2.0),
          ),
        ),
      ),
    );
    expect(
      find.byType(LinearProgressIndicator),
      paints
        ..rect(rect: const Rect.fromLTRB(0.0, 0.0, 200.0, 2.0))
        ..rect(rect: const Rect.fromLTRB(0.0, 0.0, 50.0, 2.0)),
    );

    // Same test, but using the theme
    await tester.pumpWidget(
      Theme(
        data: ThemeData(
          progressIndicatorTheme: const ProgressIndicatorThemeData(
            linearMinHeight: 2.0,
          ),
        ),
        child: const Directionality(
          textDirection: TextDirection.ltr,
          child: Center(
            child: SizedBox(
              width: 200.0,
              child: LinearProgressIndicator(value: 0.25),
            ),
          ),
        ),
      ),
    );
    expect(
      find.byType(LinearProgressIndicator),
      paints
        ..rect(rect: const Rect.fromLTRB(0.0, 0.0, 200.0, 2.0))
        ..rect(rect: const Rect.fromLTRB(0.0, 0.0, 50.0, 2.0)),
    );
  });

  testWidgets('LinearProgressIndicator paint (LTR)', (WidgetTester tester) async {
    await tester.pumpWidget(
      const Directionality(
        textDirection: TextDirection.ltr,
        child: Center(
          child: SizedBox(
            width: 200.0,
            child: LinearProgressIndicator(value: 0.25),
          ),
        ),
      ),
    );

    expect(
      find.byType(LinearProgressIndicator),
      paints
        ..rect(rect: const Rect.fromLTRB(0.0, 0.0, 200.0, 4.0))
        ..rect(rect: const Rect.fromLTRB(0.0, 0.0, 50.0, 4.0)),
    );

    expect(tester.binding.transientCallbackCount, 0);
  });

  testWidgets('LinearProgressIndicator paint (RTL)', (WidgetTester tester) async {
    await tester.pumpWidget(
      const Directionality(
        textDirection: TextDirection.rtl,
        child: Center(
          child: SizedBox(
            width: 200.0,
            child: LinearProgressIndicator(value: 0.25),
          ),
        ),
      ),
    );

    expect(
      find.byType(LinearProgressIndicator),
      paints
        ..rect(rect: const Rect.fromLTRB(0.0, 0.0, 200.0, 4.0))
        ..rect(rect: const Rect.fromLTRB(150.0, 0.0, 200.0, 4.0)),
    );

    expect(tester.binding.transientCallbackCount, 0);
  });

  testWidgets('LinearProgressIndicator indeterminate (LTR)', (WidgetTester tester) async {
    await tester.pumpWidget(
      const Directionality(
        textDirection: TextDirection.ltr,
        child: Center(
          child: SizedBox(
            width: 200.0,
            child: LinearProgressIndicator(),
          ),
        ),
      ),
    );

    await tester.pump(const Duration(milliseconds: 300));
    final double animationValue = const Interval(0.0, 750.0 / 1800.0, curve: Cubic(0.2, 0.0, 0.8, 1.0))
      .transform(300.0 / 1800.0);

    expect(
      find.byType(LinearProgressIndicator),
      paints
        ..rect(rect: const Rect.fromLTRB(0.0, 0.0, 200.0, 4.0))
        ..rect(rect: Rect.fromLTRB(0.0, 0.0, animationValue * 200.0, 4.0)),
    );

    expect(tester.binding.transientCallbackCount, 1);
  });

  testWidgets('LinearProgressIndicator paint (RTL)', (WidgetTester tester) async {
    await tester.pumpWidget(
      const Directionality(
        textDirection: TextDirection.rtl,
        child: Center(
          child: SizedBox(
            width: 200.0,
            child: LinearProgressIndicator(),
          ),
        ),
      ),
    );

    await tester.pump(const Duration(milliseconds: 300));
    final double animationValue = const Interval(0.0, 750.0 / 1800.0, curve: Cubic(0.2, 0.0, 0.8, 1.0))
      .transform(300.0 / 1800.0);

    expect(
      find.byType(LinearProgressIndicator),
      paints
        ..rect(rect: const Rect.fromLTRB(0.0, 0.0, 200.0, 4.0))
        ..rect(rect: Rect.fromLTRB(200.0 - animationValue * 200.0, 0.0, 200.0, 4.0)),
    );

    expect(tester.binding.transientCallbackCount, 1);
  });

  testWidgets('LinearProgressIndicator with colors', (WidgetTester tester) async {
    // With valueColor & color provided
    await tester.pumpWidget(
      const Directionality(
        textDirection: TextDirection.ltr,
        child: Center(
          child: SizedBox(
            width: 200.0,
            child: LinearProgressIndicator(
              value: 0.25,
              backgroundColor: Colors.black,
              color: Colors.blue,
              valueColor: AlwaysStoppedAnimation<Color>(Colors.white),
            ),
          ),
        ),
      ),
    );

    // Should use valueColor
    expect(
      find.byType(LinearProgressIndicator),
      paints
        ..rect(rect: const Rect.fromLTRB(0.0, 0.0, 200.0, 4.0))
        ..rect(rect: const Rect.fromLTRB(0.0, 0.0, 50.0, 4.0), color: Colors.white),
    );

    // With just color provided
    await tester.pumpWidget(
      const Directionality(
        textDirection: TextDirection.ltr,
        child: Center(
          child: SizedBox(
            width: 200.0,
            child: LinearProgressIndicator(
              value: 0.25,
              backgroundColor: Colors.black,
              color: Colors.white12,
            ),
          ),
        ),
      ),
    );

    // Should use color
    expect(
      find.byType(LinearProgressIndicator),
      paints
        ..rect(rect: const Rect.fromLTRB(0.0, 0.0, 200.0, 4.0))
        ..rect(rect: const Rect.fromLTRB(0.0, 0.0, 50.0, 4.0), color: Colors.white12),
    );

    // With no color provided
    const Color primaryColor = Color(0xff008800);
    final ThemeData theme = ThemeData(colorScheme: ColorScheme.fromSwatch().copyWith(primary: primaryColor));
    await tester.pumpWidget(
      Theme(
        data: theme,
        child: const Directionality(
          textDirection: TextDirection.ltr,
          child: Center(
            child: SizedBox(
              width: 200.0,
              child: LinearProgressIndicator(
                value: 0.25,
                backgroundColor: Colors.black,
              ),
            ),
          ),
        ),
      ),
    );

    // Should use the theme's primary color
    expect(
      find.byType(LinearProgressIndicator),
      paints
        ..rect(rect: const Rect.fromLTRB(0.0, 0.0, 200.0, 4.0))
        ..rect(rect: const Rect.fromLTRB(0.0, 0.0, 50.0, 4.0), color: primaryColor),
    );

    // With ProgressIndicatorTheme colors
    const Color indicatorColor = Color(0xff0000ff);
    await tester.pumpWidget(
      Theme(
        data: ThemeData(
          progressIndicatorTheme: const ProgressIndicatorThemeData(
            color: indicatorColor,
            linearTrackColor: Colors.black,
          ),
        ),
        child: const Directionality(
          textDirection: TextDirection.ltr,
          child: Center(
            child: SizedBox(
              width: 200.0,
              child: LinearProgressIndicator(
                value: 0.25,
              ),
            ),
          ),
        ),
      ),
    );

    // Should use the progress indicator theme colors
    expect(
      find.byType(LinearProgressIndicator),
      paints
        ..rect(rect: const Rect.fromLTRB(0.0, 0.0, 200.0, 4.0))
        ..rect(rect: const Rect.fromLTRB(0.0, 0.0, 50.0, 4.0), color: indicatorColor),
    );

  });

  testWidgets('LinearProgressIndicator with animation with null colors', (WidgetTester tester) async {
    await tester.pumpWidget(
      const Directionality(
        textDirection: TextDirection.ltr,
        child: Center(
          child: SizedBox(
            width: 200.0,
            child: LinearProgressIndicator(
              value: 0.25,
              valueColor: AlwaysStoppedAnimation<Color?>(null),
              backgroundColor: Colors.black,
            ),
          ),
        ),
      ),
    );

    expect(
      find.byType(LinearProgressIndicator),
      paints
        ..rect(rect: const Rect.fromLTRB(0.0, 0.0, 200.0, 4.0))
        ..rect(rect: const Rect.fromLTRB(0.0, 0.0, 50.0, 4.0)),
    );
  });

  testWidgets('CircularProgressIndicator(value: 0.0) can be constructed and has value semantics by default', (WidgetTester tester) async {
    final SemanticsHandle handle = tester.ensureSemantics();
    await tester.pumpWidget(
      const Directionality(
        textDirection: TextDirection.ltr,
        child: Center(
          child: CircularProgressIndicator(value: 0.0),
        ),
      ),
    );

    expect(tester.getSemantics(find.byType(CircularProgressIndicator)), matchesSemantics(
      value: '0%',
      textDirection: TextDirection.ltr,
    ));
    handle.dispose();
  });

  testWidgets('CircularProgressIndicator(value: null) can be constructed and has empty semantics by default', (WidgetTester tester) async {
    final SemanticsHandle handle = tester.ensureSemantics();
    await tester.pumpWidget(
      const Center(
        child: CircularProgressIndicator(value: null),
      ),
    );

    expect(tester.getSemantics(find.byType(CircularProgressIndicator)), matchesSemantics());
    handle.dispose();
  });

  testWidgets('LinearProgressIndicator causes a repaint when it changes', (WidgetTester tester) async {
    await tester.pumpWidget(Directionality(
      textDirection: TextDirection.ltr,
      child: ListView(children: const <Widget>[LinearProgressIndicator(value: 0.0)]),
    ));
    final List<Layer> layers1 = tester.layers;
    await tester.pumpWidget(Directionality(
      textDirection: TextDirection.ltr,
      child: ListView(children: const <Widget>[LinearProgressIndicator(value: 0.5)]),
    ));
    final List<Layer> layers2 = tester.layers;
    expect(layers1, isNot(equals(layers2)));
  });

  testWidgets('CircularProgressIndicator stoke width', (WidgetTester tester) async {
    await tester.pumpWidget(const CircularProgressIndicator());

    expect(find.byType(CircularProgressIndicator), paints..arc(strokeWidth: 4.0));

    await tester.pumpWidget(const CircularProgressIndicator(strokeWidth: 16.0));

    expect(find.byType(CircularProgressIndicator), paints..arc(strokeWidth: 16.0));
  });

  testWidgets('CircularProgressIndicator paint colors', (WidgetTester tester) async {
    const Color green = Color(0xFF00FF00);
    const Color blue = Color(0xFF0000FF);
    const Color red = Color(0xFFFF0000);

    // With valueColor & color provided
    await tester.pumpWidget(const CircularProgressIndicator(
      color: red,
      valueColor: AlwaysStoppedAnimation<Color>(blue),
    ));
    expect(find.byType(CircularProgressIndicator), paintsExactlyCountTimes(#drawArc, 1));
    expect(find.byType(CircularProgressIndicator), paints..arc(color: blue));

    // With just color provided
    await tester.pumpWidget(const CircularProgressIndicator(
      color: red,
    ));
    expect(find.byType(CircularProgressIndicator), paintsExactlyCountTimes(#drawArc, 1));
    expect(find.byType(CircularProgressIndicator), paints..arc(color: red));

    // With no color provided
    await tester.pumpWidget(Theme(
      data: ThemeData(colorScheme: ColorScheme.fromSwatch().copyWith(primary: green)),
      child: const CircularProgressIndicator(),
    ));
    expect(find.byType(CircularProgressIndicator), paintsExactlyCountTimes(#drawArc, 1));
    expect(find.byType(CircularProgressIndicator), paints..arc(color: green));

    // With background
    await tester.pumpWidget(const CircularProgressIndicator(
      backgroundColor: green,
      color: blue,
    ));
    expect(find.byType(CircularProgressIndicator), paintsExactlyCountTimes(#drawArc, 2));
    expect(find.byType(CircularProgressIndicator), paints..arc(color: green)..arc(color: blue));

    // With ProgressIndicatorTheme
    await tester.pumpWidget(Theme(
      data: ThemeData(progressIndicatorTheme: const ProgressIndicatorThemeData(
        color: green,
        circularTrackColor: blue,
      )),
      child: const CircularProgressIndicator(),
    ));
    expect(find.byType(CircularProgressIndicator), paintsExactlyCountTimes(#drawArc, 2));
    expect(find.byType(CircularProgressIndicator), paints..arc(color: blue)..arc(color: green));
  });

  testWidgets('RefreshProgressIndicator paint colors', (WidgetTester tester) async {
    const Color green = Color(0xFF00FF00);
    const Color blue = Color(0xFF0000FF);
    const Color red = Color(0xFFFF0000);

    // With valueColor & color provided
    await tester.pumpWidget(const RefreshProgressIndicator(
      color: red,
      valueColor: AlwaysStoppedAnimation<Color>(blue),
    ));
    expect(find.byType(RefreshProgressIndicator), paintsExactlyCountTimes(#drawArc, 1));
    expect(find.byType(RefreshProgressIndicator), paints..arc(color: blue));

    // With just color provided
    await tester.pumpWidget(const RefreshProgressIndicator(
      color: red,
    ));
    expect(find.byType(RefreshProgressIndicator), paintsExactlyCountTimes(#drawArc, 1));
    expect(find.byType(RefreshProgressIndicator), paints..arc(color: red));

    // With no color provided
    await tester.pumpWidget(Theme(
      data: ThemeData(colorScheme: ColorScheme.fromSwatch().copyWith(primary: green)),
      child: const RefreshProgressIndicator(),
    ));
    expect(find.byType(RefreshProgressIndicator), paintsExactlyCountTimes(#drawArc, 1));
    expect(find.byType(RefreshProgressIndicator), paints..arc(color: green));

    // With background
    await tester.pumpWidget(const RefreshProgressIndicator(
      color: blue,
      backgroundColor: green,
    ));
    expect(find.byType(RefreshProgressIndicator), paintsExactlyCountTimes(#drawArc, 1));
    expect(find.byType(RefreshProgressIndicator), paints..arc(color: blue));
    final Material backgroundMaterial = tester.widget(find.descendant(
      of: find.byType(RefreshProgressIndicator),
      matching: find.byType(Material),
    ));
    expect(backgroundMaterial.type, MaterialType.circle);
    expect(backgroundMaterial.color, green);

    // With ProgressIndicatorTheme
    await tester.pumpWidget(Theme(
      data: ThemeData(progressIndicatorTheme: const ProgressIndicatorThemeData(
        color: green,
        refreshBackgroundColor: blue,
      )),
      child: const RefreshProgressIndicator(),
    ));
    expect(find.byType(RefreshProgressIndicator), paintsExactlyCountTimes(#drawArc, 1));
    expect(find.byType(RefreshProgressIndicator), paints..arc(color: green));
    final Material themeBackgroundMaterial = tester.widget(find.descendant(
      of: find.byType(RefreshProgressIndicator),
      matching: find.byType(Material),
    ));
    expect(themeBackgroundMaterial.type, MaterialType.circle);
    expect(themeBackgroundMaterial.color, blue);
  });

  testWidgets('Indeterminate RefreshProgressIndicator keeps spinning until end of time (approximate)', (WidgetTester tester) async {
    // Regression test for https://github.com/flutter/flutter/issues/13782

    await tester.pumpWidget(
      const Directionality(
        textDirection: TextDirection.ltr,
        child: Center(
          child: SizedBox(
            width: 200.0,
            child: RefreshProgressIndicator(),
          ),
        ),
      ),
    );
    expect(tester.hasRunningAnimations, isTrue);

    await tester.pump(const Duration(seconds: 5));
    expect(tester.hasRunningAnimations, isTrue);

    await tester.pump(const Duration(milliseconds: 1));
    expect(tester.hasRunningAnimations, isTrue);

    await tester.pump(const Duration(days: 9999));
    expect(tester.hasRunningAnimations, isTrue);
  });

  testWidgets('Determinate CircularProgressIndicator stops the animator', (WidgetTester tester) async {
    double? progressValue;
    late StateSetter setState;
    await tester.pumpWidget(
      Directionality(
        textDirection: TextDirection.ltr,
        child: Center(
          child: StatefulBuilder(
            builder: (BuildContext context, StateSetter setter) {
              setState = setter;
              return CircularProgressIndicator(value: progressValue);
            },
          ),
        ),
      ),
    );
    expect(tester.hasRunningAnimations, isTrue);

    setState(() { progressValue = 1.0; });
    await tester.pump(const Duration(milliseconds: 1));
    expect(tester.hasRunningAnimations, isFalse);

    setState(() { progressValue = null; });
    await tester.pump(const Duration(milliseconds: 1));
    expect(tester.hasRunningAnimations, isTrue);
  });

  testWidgets('LinearProgressIndicator with height 12.0', (WidgetTester tester) async {
    await tester.pumpWidget(
      const Directionality(
        textDirection: TextDirection.ltr,
        child: Center(
          child: SizedBox(
            width: 100.0,
            height: 12.0,
            child: LinearProgressIndicator(value: 0.25),
          ),
        ),
      ),
    );
    expect(
        find.byType(LinearProgressIndicator),
        paints
          ..rect(rect: const Rect.fromLTRB(0.0, 0.0, 100.0, 12.0))
          ..rect(rect: const Rect.fromLTRB(0.0, 0.0, 25.0, 12.0)),
    );
    expect(tester.binding.transientCallbackCount, 0);
  });

  testWidgets('LinearProgressIndicator with a height less than the minimum', (WidgetTester tester) async {
    await tester.pumpWidget(
      const Directionality(
        textDirection: TextDirection.ltr,
        child: Center(
          child: SizedBox(
            width: 100.0,
            height: 3.0,
            child: LinearProgressIndicator(value: 0.25),
          ),
        ),
      ),
    );
    expect(
        find.byType(LinearProgressIndicator),
        paints
          ..rect(rect: const Rect.fromLTRB(0.0, 0.0, 100.0, 3.0))
          ..rect(rect: const Rect.fromLTRB(0.0, 0.0, 25.0, 3.0)),
    );
    expect(tester.binding.transientCallbackCount, 0);
  });

  testWidgets('LinearProgressIndicator with default height', (WidgetTester tester) async {
    await tester.pumpWidget(
      const Directionality(
        textDirection: TextDirection.ltr,
        child: Center(
          child: SizedBox(
            width: 100.0,
            height: 4.0,
            child: LinearProgressIndicator(value: 0.25),
          ),
        ),
      ),
    );
    expect(
        find.byType(LinearProgressIndicator),
        paints
          ..rect(rect: const Rect.fromLTRB(0.0, 0.0, 100.0, 4.0))
          ..rect(rect: const Rect.fromLTRB(0.0, 0.0, 25.0, 4.0)),
    );
    expect(tester.binding.transientCallbackCount, 0);
  });

  testWidgets('LinearProgressIndicator can be made accessible', (WidgetTester tester) async {
    final SemanticsHandle handle = tester.ensureSemantics();
    final GlobalKey key = GlobalKey();
    const String label = 'Label';
    const String value = '25%';
    await tester.pumpWidget(
      Directionality(
        textDirection: TextDirection.ltr,
        child: LinearProgressIndicator(
          key: key,
          value: 0.25,
          semanticsLabel: label,
          semanticsValue: value,
        ),
      ),
    );

    expect(tester.getSemantics(find.byKey(key)), matchesSemantics(
      textDirection: TextDirection.ltr,
      label: label,
      value: value,
    ));

    handle.dispose();
  });

  testWidgets('LinearProgressIndicator that is determinate gets default a11y value', (WidgetTester tester) async {
    final SemanticsHandle handle = tester.ensureSemantics();
    final GlobalKey key = GlobalKey();
    const String label = 'Label';
    await tester.pumpWidget(
      Directionality(
        textDirection: TextDirection.ltr,
        child: LinearProgressIndicator(
          key: key,
          value: 0.25,
          semanticsLabel: label,
        ),
      ),
    );

    expect(tester.getSemantics(find.byKey(key)), matchesSemantics(
      textDirection: TextDirection.ltr,
      label: label,
      value: '25%',
    ));

    handle.dispose();
  });

  testWidgets('LinearProgressIndicator that is determinate does not default a11y value when label is null', (WidgetTester tester) async {
    final SemanticsHandle handle = tester.ensureSemantics();
    final GlobalKey key = GlobalKey();
    await tester.pumpWidget(
      Directionality(
        textDirection: TextDirection.ltr,
        child: LinearProgressIndicator(
          key: key,
          value: 0.25,
        ),
      ),
    );

    expect(tester.getSemantics(find.byKey(key)), matchesSemantics());

    handle.dispose();
  });

  testWidgets('LinearProgressIndicator that is indeterminate does not default a11y value', (WidgetTester tester) async {
    final SemanticsHandle handle = tester.ensureSemantics();
    final GlobalKey key = GlobalKey();
    const String label = 'Progress';
    await tester.pumpWidget(
      Directionality(
        textDirection: TextDirection.ltr,
        child: LinearProgressIndicator(
          key: key,
          value: 0.25,
          semanticsLabel: label,
        ),
      ),
    );

    expect(tester.getSemantics(find.byKey(key)), matchesSemantics(
      textDirection: TextDirection.ltr,
      label: label,
    ));

    handle.dispose();
  });

  testWidgets('CircularProgressIndicator can be made accessible', (WidgetTester tester) async {
    final SemanticsHandle handle = tester.ensureSemantics();
    final GlobalKey key = GlobalKey();
    const String label = 'Label';
    const String value = '25%';
    await tester.pumpWidget(
      Directionality(
        textDirection: TextDirection.ltr,
        child: CircularProgressIndicator(
          key: key,
          value: 0.25,
          semanticsLabel: label,
          semanticsValue: value,
        ),
      ),
    );

    expect(tester.getSemantics(find.byKey(key)), matchesSemantics(
      textDirection: TextDirection.ltr,
      label: label,
      value: value,
    ));

    handle.dispose();
  });

  testWidgets('RefreshProgressIndicator can be made accessible', (WidgetTester tester) async {
    final SemanticsHandle handle = tester.ensureSemantics();
    final GlobalKey key = GlobalKey();
    const String label = 'Label';
    const String value = '25%';
    await tester.pumpWidget(
      Directionality(
        textDirection: TextDirection.ltr,
        child: RefreshProgressIndicator(
          key: key,
          semanticsLabel: label,
          semanticsValue: value,
        ),
      ),
    );

    expect(tester.getSemantics(find.byKey(key)), matchesSemantics(
      textDirection: TextDirection.ltr,
      label: label,
      value: value,
    ));

    handle.dispose();
  });

  testWidgets('Indeterminate CircularProgressIndicator uses expected animation', (WidgetTester tester) async {
    final AnimationSheetBuilder animationSheet = AnimationSheetBuilder(frameSize: const Size(40, 40));

    await tester.pumpFrames(animationSheet.record(
      const Directionality(
        textDirection: TextDirection.ltr,
        child: Padding(
          padding: EdgeInsets.all(4),
          child: CircularProgressIndicator(),
        ),
      ),
    ), const Duration(seconds: 2));

    tester.binding.setSurfaceSize(animationSheet.sheetSize());

    final Widget display = await animationSheet.display();
    await tester.pumpWidget(display);

    await expectLater(
      find.byWidget(display),
      matchesGoldenFile('material.circular_progress_indicator.indeterminate.png'),
    );
  }, skip: isBrowser); // https://github.com/flutter/flutter/issues/42767

  testWidgets(
    'Adaptive CircularProgressIndicator displays CupertinoActivityIndicator in iOS',
    (WidgetTester tester) async {
      await tester.pumpWidget(
        const MaterialApp(
          home: Scaffold(
            body: Material(
              child: CircularProgressIndicator.adaptive(),
            ),
          ),
        ),
      );

      expect(find.byType(CupertinoActivityIndicator), findsOneWidget);
    },
    variant: const TargetPlatformVariant(<TargetPlatform> {
      TargetPlatform.iOS,
      TargetPlatform.macOS,
    }),
  );

  testWidgets(
    'Adaptive CircularProgressIndicator does not display CupertinoActivityIndicator in non-iOS',
    (WidgetTester tester) async {
      await tester.pumpWidget(
        const MaterialApp(
          home: Scaffold(
            body: Material(
              child: CircularProgressIndicator.adaptive(),
            ),
          ),
        ),
      );

      expect(find.byType(CupertinoActivityIndicator), findsNothing);
    },
    variant: const TargetPlatformVariant(<TargetPlatform> {
      TargetPlatform.android,
      TargetPlatform.fuchsia,
      TargetPlatform.windows,
      TargetPlatform.linux,
    }),
  );

  testWidgets('ProgressIndicatorTheme.wrap() always creates a new ProgressIndicatorTheme', (WidgetTester tester) async {

    late BuildContext builderContext;

    const ProgressIndicatorThemeData themeData = ProgressIndicatorThemeData(
      color: Color(0xFFFF0000),
      linearTrackColor: Color(0xFF00FF00),
    );

    final ProgressIndicatorTheme progressTheme = ProgressIndicatorTheme(
      data: themeData,
      child: Builder(
        builder: (BuildContext context) {
          builderContext = context;
          return const LinearProgressIndicator(value: 0.5);
        }
      ),
    );

    await tester.pumpWidget(MaterialApp(
      home: progressTheme,
    ));
    final Widget wrappedTheme = progressTheme.wrap(builderContext, Container());

    // Make sure the returned widget is a new ProgressIndicatorTheme instance
    // with the same theme data as the original.
    expect(wrappedTheme, isNot(equals(progressTheme)));
    expect(wrappedTheme, isInstanceOf<ProgressIndicatorTheme>());
    expect((wrappedTheme as ProgressIndicatorTheme).data, themeData);
  });
}