packages/flutter/test/cupertino/activity_indicator_test.dart

// 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/scheduler.dart';
import 'package:flutter_test/flutter_test.dart';

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

void main() {
  testWidgets('Activity indicator animate property works',
      (WidgetTester tester) async {
    await tester.pumpWidget(buildCupertinoActivityIndicator());
    expect(SchedulerBinding.instance!.transientCallbackCount, equals(1));

    await tester.pumpWidget(buildCupertinoActivityIndicator(false));
    expect(SchedulerBinding.instance!.transientCallbackCount, equals(0));

    await tester.pumpWidget(Container());

    await tester.pumpWidget(buildCupertinoActivityIndicator(false));
    expect(SchedulerBinding.instance!.transientCallbackCount, equals(0));

    await tester.pumpWidget(buildCupertinoActivityIndicator());
    expect(SchedulerBinding.instance!.transientCallbackCount, equals(1));
  });

  testWidgets('Activity indicator dark mode', (WidgetTester tester) async {
    final Key key = UniqueKey();
    await tester.pumpWidget(
      Center(
        child: MediaQuery(
          data: const MediaQueryData(platformBrightness: Brightness.light),
          child: RepaintBoundary(
            key: key,
            child: Container(
              color: CupertinoColors.white,
              child: const CupertinoActivityIndicator(
                animating: false,
                radius: 35,
              ),
            ),
          ),
        ),
      ),
    );

    await expectLater(
      find.byKey(key),
      matchesGoldenFile('activityIndicator.paused.light.png'),
    );

    await tester.pumpWidget(
      Center(
        child: MediaQuery(
          data: const MediaQueryData(platformBrightness: Brightness.dark),
          child: RepaintBoundary(
            key: key,
            child: Container(
              color: CupertinoColors.black,
              child: const CupertinoActivityIndicator(
                animating: false,
                radius: 35,
              ),
            ),
          ),
        ),
      ),
    );

    await expectLater(
      find.byKey(key),
      matchesGoldenFile('activityIndicator.paused.dark.png'),
    );
  });

  testWidgets('Activity indicator 0% in progress', (WidgetTester tester) async {
    final Key key = UniqueKey();
    await tester.pumpWidget(
      Center(
        child: RepaintBoundary(
          key: key,
          child: Container(
            color: CupertinoColors.white,
            child:
                const CupertinoActivityIndicator.partiallyRevealed(progress: 0),
          ),
        ),
      ),
    );

    await expectLater(
      find.byKey(key),
      matchesGoldenFile('activityIndicator.inprogress.0.0.png'),
    );
  });

  testWidgets('Activity indicator 30% in progress',
      (WidgetTester tester) async {
    final Key key = UniqueKey();
    await tester.pumpWidget(
      Center(
        child: RepaintBoundary(
          key: key,
          child: Container(
            color: CupertinoColors.white,
            child: const CupertinoActivityIndicator.partiallyRevealed(
              progress: 0.5,
            ),
          ),
        ),
      ),
    );

    await expectLater(
      find.byKey(key),
      matchesGoldenFile('activityIndicator.inprogress.0.3.png'),
    );
  });

  testWidgets('Activity indicator 100% in progress',
      (WidgetTester tester) async {
    final Key key = UniqueKey();
    await tester.pumpWidget(
      Center(
        child: RepaintBoundary(
          key: key,
          child: Container(
            color: CupertinoColors.white,
            child:
                const CupertinoActivityIndicator.partiallyRevealed(progress: 1),
          ),
        ),
      ),
    );

    await expectLater(
      find.byKey(key),
      matchesGoldenFile('activityIndicator.inprogress.1.0.png'),
    );
  });

  // Regression test for https://github.com/flutter/flutter/issues/41345.
  testWidgets('has the correct corner radius', (WidgetTester tester) async {
    await tester.pumpWidget(
      const CupertinoActivityIndicator(animating: false, radius: 100),
    );

    // An earlier implementation for the activity indicator started drawing
    // the ticks at 9 o'clock, however, in order to support partially revealed
    // indicator (https://github.com/flutter/flutter/issues/29159), the
    // first tick was changed to be at 12 o'clock.
    expect(
      find.byType(CupertinoActivityIndicator),
      paints
        ..rrect(rrect: const RRect.fromLTRBXY(-10, -100 / 3, 10, -100, 10, 10)),
    );
  });
}

Widget buildCupertinoActivityIndicator([bool? animating]) {
  return MediaQuery(
    data: const MediaQueryData(platformBrightness: Brightness.light),
    child: CupertinoActivityIndicator(
      animating: animating ?? true,
    ),
  );
}