media_query_test.dart 19 KB
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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

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import 'dart:ui' show Brightness;
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import 'package:flutter_test/flutter_test.dart';
import 'package:flutter/widgets.dart';

void main() {
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  testWidgets('MediaQuery does not have a default', (WidgetTester tester) async {
    bool tested = false;
    await tester.pumpWidget(
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      Builder(
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        builder: (BuildContext context) {
          tested = true;
          MediaQuery.of(context); // should throw
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          return Container();
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        },
      ),
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    );
    expect(tested, isTrue);
    expect(tester.takeException(), isFlutterError);
  });
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  testWidgets('MediaQuery defaults to null', (WidgetTester tester) async {
    bool tested = false;
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    await tester.pumpWidget(
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      Builder(
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        builder: (BuildContext context) {
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          final MediaQueryData data = MediaQuery.of(context, nullOk: true);
          expect(data, isNull);
          tested = true;
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          return Container();
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        },
      ),
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    );
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    expect(tested, isTrue);
  });
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  testWidgets('MediaQueryData is sane', (WidgetTester tester) async {
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    final MediaQueryData data = MediaQueryData.fromWindow(WidgetsBinding.instance.window);
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    expect(data, hasOneLineDescription);
    expect(data.hashCode, equals(data.copyWith().hashCode));
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    expect(data.size, equals(WidgetsBinding.instance.window.physicalSize / WidgetsBinding.instance.window.devicePixelRatio));
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    expect(data.accessibleNavigation, false);
    expect(data.invertColors, false);
    expect(data.disableAnimations, false);
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    expect(data.boldText, false);
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    expect(data.platformBrightness, Brightness.light);
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    expect(data.physicalDepth, equals(WidgetsBinding.instance.window.physicalDepth));
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  });
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  testWidgets('MediaQueryData.copyWith defaults to source', (WidgetTester tester) async {
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    final MediaQueryData data = MediaQueryData.fromWindow(WidgetsBinding.instance.window);
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    final MediaQueryData copied = data.copyWith();
    expect(copied.size, data.size);
    expect(copied.devicePixelRatio, data.devicePixelRatio);
    expect(copied.textScaleFactor, data.textScaleFactor);
    expect(copied.padding, data.padding);
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    expect(copied.viewPadding, data.viewPadding);
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    expect(copied.viewInsets, data.viewInsets);
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    expect(copied.systemGestureInsets, data.systemGestureInsets);
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    expect(copied.physicalDepth, data.physicalDepth);
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    expect(copied.alwaysUse24HourFormat, data.alwaysUse24HourFormat);
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    expect(copied.accessibleNavigation, data.accessibleNavigation);
    expect(copied.invertColors, data.invertColors);
    expect(copied.disableAnimations, data.disableAnimations);
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    expect(copied.boldText, data.boldText);
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    expect(copied.platformBrightness, data.platformBrightness);
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  });

  testWidgets('MediaQuery.copyWith copies specified values', (WidgetTester tester) async {
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    // Random and unique double values are used to ensure that the correct
    // values are copied over exactly
    const Size customSize = Size(3.14, 2.72);
    const double customDevicePixelRatio = 1.41;
    const double customTextScaleFactor = 1.62;
    const EdgeInsets customPadding = EdgeInsets.all(9.10938);
    const EdgeInsets customViewPadding = EdgeInsets.all(11.24031);
    const EdgeInsets customViewInsets = EdgeInsets.all(1.67262);
    const EdgeInsets customSystemGestureInsets = EdgeInsets.all(1.5556);
    const double customPhysicalDepth = 120.0;

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    final MediaQueryData data = MediaQueryData.fromWindow(WidgetsBinding.instance.window);
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    final MediaQueryData copied = data.copyWith(
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      size: customSize,
      devicePixelRatio: customDevicePixelRatio,
      textScaleFactor: customTextScaleFactor,
      padding: customPadding,
      viewPadding: customViewPadding,
      viewInsets: customViewInsets,
      systemGestureInsets: customSystemGestureInsets,
      physicalDepth: customPhysicalDepth,
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      alwaysUse24HourFormat: true,
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      accessibleNavigation: true,
      invertColors: true,
      disableAnimations: true,
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      boldText: true,
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      platformBrightness: Brightness.dark,
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    );
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    expect(copied.size, customSize);
    expect(copied.devicePixelRatio, customDevicePixelRatio);
    expect(copied.textScaleFactor, customTextScaleFactor);
    expect(copied.padding, customPadding);
    expect(copied.viewPadding, customViewPadding);
    expect(copied.viewInsets, customViewInsets);
    expect(copied.systemGestureInsets, customSystemGestureInsets);
    expect(copied.physicalDepth, customPhysicalDepth);
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    expect(copied.alwaysUse24HourFormat, true);
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    expect(copied.accessibleNavigation, true);
    expect(copied.invertColors, true);
    expect(copied.disableAnimations, true);
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    expect(copied.boldText, true);
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    expect(copied.platformBrightness, Brightness.dark);
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  });
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  testWidgets('MediaQuery.removePadding removes specified padding', (WidgetTester tester) async {
    const Size size = Size(2.0, 4.0);
    const double devicePixelRatio = 2.0;
    const double textScaleFactor = 1.2;
    const EdgeInsets padding = EdgeInsets.only(top: 1.0, right: 2.0, left: 3.0, bottom: 4.0);
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    const EdgeInsets viewPadding = EdgeInsets.only(top: 6.0, right: 8.0, left: 10.0, bottom: 12.0);
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    const EdgeInsets viewInsets = EdgeInsets.only(top: 5.0, right: 6.0, left: 7.0, bottom: 8.0);

    MediaQueryData unpadded;
    await tester.pumpWidget(
      MediaQuery(
        data: const MediaQueryData(
          size: size,
          devicePixelRatio: devicePixelRatio,
          textScaleFactor: textScaleFactor,
          padding: padding,
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          viewPadding: viewPadding,
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          viewInsets: viewInsets,
          alwaysUse24HourFormat: true,
          accessibleNavigation: true,
          invertColors: true,
          disableAnimations: true,
          boldText: true,
        ),
        child: Builder(
          builder: (BuildContext context) {
            return MediaQuery.removePadding(
              context: context,
              removeLeft: true,
              removeTop: true,
              removeRight: true,
              removeBottom: true,
              child: Builder(
                builder: (BuildContext context) {
                  unpadded = MediaQuery.of(context);
                  return Container();
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                },
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              ),
            );
          },
        ),
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      ),
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    );

    expect(unpadded.size, size);
    expect(unpadded.devicePixelRatio, devicePixelRatio);
    expect(unpadded.textScaleFactor, textScaleFactor);
    expect(unpadded.padding, EdgeInsets.zero);
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    expect(unpadded.viewPadding, viewInsets);
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    expect(unpadded.viewInsets, viewInsets);
    expect(unpadded.alwaysUse24HourFormat, true);
    expect(unpadded.accessibleNavigation, true);
    expect(unpadded.invertColors, true);
    expect(unpadded.disableAnimations, true);
    expect(unpadded.boldText, true);
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  });
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  testWidgets('MediaQuery.removePadding only removes specified padding', (WidgetTester tester) async {
    const Size size = Size(2.0, 4.0);
    const double devicePixelRatio = 2.0;
    const double textScaleFactor = 1.2;
    const EdgeInsets padding = EdgeInsets.only(top: 1.0, right: 2.0, left: 3.0, bottom: 4.0);
    const EdgeInsets viewPadding = EdgeInsets.only(top: 6.0, right: 8.0, left: 10.0, bottom: 12.0);
    const EdgeInsets viewInsets = EdgeInsets.only(top: 5.0, right: 6.0, left: 7.0, bottom: 8.0);

    MediaQueryData unpadded;
    await tester.pumpWidget(
      MediaQuery(
        data: const MediaQueryData(
          size: size,
          devicePixelRatio: devicePixelRatio,
          textScaleFactor: textScaleFactor,
          padding: padding,
          viewPadding: viewPadding,
          viewInsets: viewInsets,
          alwaysUse24HourFormat: true,
          accessibleNavigation: true,
          invertColors: true,
          disableAnimations: true,
          boldText: true,
        ),
        child: Builder(
          builder: (BuildContext context) {
            return MediaQuery.removePadding(
              removeTop: true,
              context: context,
              child: Builder(
                builder: (BuildContext context) {
                  unpadded = MediaQuery.of(context);
                  return Container();
                },
              ),
            );
          },
        ),
      ),
    );

    expect(unpadded.size, size);
    expect(unpadded.devicePixelRatio, devicePixelRatio);
    expect(unpadded.textScaleFactor, textScaleFactor);
    expect(unpadded.padding, padding.copyWith(top: 0));
    expect(unpadded.viewPadding, viewPadding.copyWith(top: viewInsets.top));
    expect(unpadded.viewInsets, viewInsets);
    expect(unpadded.alwaysUse24HourFormat, true);
    expect(unpadded.accessibleNavigation, true);
    expect(unpadded.invertColors, true);
    expect(unpadded.disableAnimations, true);
    expect(unpadded.boldText, true);
  });

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  testWidgets('MediaQuery.removeViewInsets removes specified viewInsets', (WidgetTester tester) async {
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    const Size size = Size(2.0, 4.0);
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    const double devicePixelRatio = 2.0;
    const double textScaleFactor = 1.2;
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    const EdgeInsets padding = EdgeInsets.only(top: 5.0, right: 6.0, left: 7.0, bottom: 8.0);
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    const EdgeInsets viewPadding = EdgeInsets.only(top: 6.0, right: 8.0, left: 10.0, bottom: 12.0);
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    const EdgeInsets viewInsets = EdgeInsets.only(top: 1.0, right: 2.0, left: 3.0, bottom: 4.0);
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    MediaQueryData unpadded;
    await tester.pumpWidget(
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      MediaQuery(
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        data: const MediaQueryData(
          size: size,
          devicePixelRatio: devicePixelRatio,
          textScaleFactor: textScaleFactor,
          padding: padding,
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          viewPadding: viewPadding,
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          viewInsets: viewInsets,
          alwaysUse24HourFormat: true,
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          accessibleNavigation: true,
          invertColors: true,
          disableAnimations: true,
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          boldText: true,
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        ),
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        child: Builder(
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          builder: (BuildContext context) {
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            return MediaQuery.removeViewInsets(
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              context: context,
              removeLeft: true,
              removeTop: true,
              removeRight: true,
              removeBottom: true,
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              child: Builder(
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                builder: (BuildContext context) {
                  unpadded = MediaQuery.of(context);
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                  return Container();
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                },
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              ),
            );
          },
        ),
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      ),
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    );

    expect(unpadded.size, size);
    expect(unpadded.devicePixelRatio, devicePixelRatio);
    expect(unpadded.textScaleFactor, textScaleFactor);
    expect(unpadded.padding, padding);
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    expect(unpadded.viewPadding, padding);
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    expect(unpadded.viewInsets, EdgeInsets.zero);
    expect(unpadded.alwaysUse24HourFormat, true);
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    expect(unpadded.accessibleNavigation, true);
    expect(unpadded.invertColors, true);
    expect(unpadded.disableAnimations, true);
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    expect(unpadded.boldText, true);
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  });
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  testWidgets('MediaQuery.removeViewInsets removes only specified viewInsets', (WidgetTester tester) async {
    const Size size = Size(2.0, 4.0);
    const double devicePixelRatio = 2.0;
    const double textScaleFactor = 1.2;
    const EdgeInsets padding = EdgeInsets.only(top: 5.0, right: 6.0, left: 7.0, bottom: 8.0);
    const EdgeInsets viewPadding = EdgeInsets.only(top: 6.0, right: 8.0, left: 10.0, bottom: 12.0);
    const EdgeInsets viewInsets = EdgeInsets.only(top: 1.0, right: 2.0, left: 3.0, bottom: 4.0);

    MediaQueryData unpadded;
    await tester.pumpWidget(
      MediaQuery(
        data: const MediaQueryData(
          size: size,
          devicePixelRatio: devicePixelRatio,
          textScaleFactor: textScaleFactor,
          padding: padding,
          viewPadding: viewPadding,
          viewInsets: viewInsets,
          alwaysUse24HourFormat: true,
          accessibleNavigation: true,
          invertColors: true,
          disableAnimations: true,
          boldText: true,
        ),
        child: Builder(
          builder: (BuildContext context) {
            return MediaQuery.removeViewInsets(
              context: context,
              removeBottom: true,
              child: Builder(
                builder: (BuildContext context) {
                  unpadded = MediaQuery.of(context);
                  return Container();
                },
              ),
            );
          },
        ),
      ),
    );

    expect(unpadded.size, size);
    expect(unpadded.devicePixelRatio, devicePixelRatio);
    expect(unpadded.textScaleFactor, textScaleFactor);
    expect(unpadded.padding, padding);
    expect(unpadded.viewPadding, viewPadding.copyWith(bottom: 8));
    expect(unpadded.viewInsets, viewInsets.copyWith(bottom: 0));
    expect(unpadded.alwaysUse24HourFormat, true);
    expect(unpadded.accessibleNavigation, true);
    expect(unpadded.invertColors, true);
    expect(unpadded.disableAnimations, true);
    expect(unpadded.boldText, true);
  });

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  testWidgets('MediaQuery.removeViewPadding removes specified viewPadding', (WidgetTester tester) async {
    const Size size = Size(2.0, 4.0);
    const double devicePixelRatio = 2.0;
    const double textScaleFactor = 1.2;
    const EdgeInsets padding = EdgeInsets.only(top: 5.0, right: 6.0, left: 7.0, bottom: 8.0);
    const EdgeInsets viewPadding = EdgeInsets.only(top: 6.0, right: 8.0, left: 10.0, bottom: 12.0);
    const EdgeInsets viewInsets = EdgeInsets.only(top: 1.0, right: 2.0, left: 3.0, bottom: 4.0);

    MediaQueryData unpadded;
    await tester.pumpWidget(
      MediaQuery(
        data: const MediaQueryData(
          size: size,
          devicePixelRatio: devicePixelRatio,
          textScaleFactor: textScaleFactor,
          padding: padding,
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          viewPadding: viewPadding,
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          viewInsets: viewInsets,
          alwaysUse24HourFormat: true,
          accessibleNavigation: true,
          invertColors: true,
          disableAnimations: true,
          boldText: true,
        ),
        child: Builder(
          builder: (BuildContext context) {
            return MediaQuery.removeViewPadding(
              context: context,
              removeLeft: true,
              removeTop: true,
              removeRight: true,
              removeBottom: true,
              child: Builder(
                builder: (BuildContext context) {
                  unpadded = MediaQuery.of(context);
                  return Container();
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                },
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              ),
            );
          },
        ),
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      ),
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    );

    expect(unpadded.size, size);
    expect(unpadded.devicePixelRatio, devicePixelRatio);
    expect(unpadded.textScaleFactor, textScaleFactor);
    expect(unpadded.padding, EdgeInsets.zero);
    expect(unpadded.viewPadding, EdgeInsets.zero);
    expect(unpadded.viewInsets, viewInsets);
    expect(unpadded.alwaysUse24HourFormat, true);
    expect(unpadded.accessibleNavigation, true);
    expect(unpadded.invertColors, true);
    expect(unpadded.disableAnimations, true);
    expect(unpadded.boldText, true);
  });

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  testWidgets('MediaQuery.removeViewPadding removes only specified viewPadding', (WidgetTester tester) async {
    const Size size = Size(2.0, 4.0);
    const double devicePixelRatio = 2.0;
    const double textScaleFactor = 1.2;
    const EdgeInsets padding = EdgeInsets.only(top: 5.0, right: 6.0, left: 7.0, bottom: 8.0);
    const EdgeInsets viewPadding = EdgeInsets.only(top: 6.0, right: 8.0, left: 10.0, bottom: 12.0);
    const EdgeInsets viewInsets = EdgeInsets.only(top: 1.0, right: 2.0, left: 3.0, bottom: 4.0);

    MediaQueryData unpadded;
    await tester.pumpWidget(
      MediaQuery(
        data: const MediaQueryData(
          size: size,
          devicePixelRatio: devicePixelRatio,
          textScaleFactor: textScaleFactor,
          padding: padding,
          viewPadding: viewPadding,
          viewInsets: viewInsets,
          alwaysUse24HourFormat: true,
          accessibleNavigation: true,
          invertColors: true,
          disableAnimations: true,
          boldText: true,
        ),
        child: Builder(
          builder: (BuildContext context) {
            return MediaQuery.removeViewPadding(
              context: context,
              removeLeft: true,
              child: Builder(
                builder: (BuildContext context) {
                  unpadded = MediaQuery.of(context);
                  return Container();
                },
              ),
            );
          },
        ),
      ),
    );

    expect(unpadded.size, size);
    expect(unpadded.devicePixelRatio, devicePixelRatio);
    expect(unpadded.textScaleFactor, textScaleFactor);
    expect(unpadded.padding, padding.copyWith(left: 0));
    expect(unpadded.viewPadding, viewPadding.copyWith(left: 0));
    expect(unpadded.viewInsets, viewInsets);
    expect(unpadded.alwaysUse24HourFormat, true);
    expect(unpadded.accessibleNavigation, true);
    expect(unpadded.invertColors, true);
    expect(unpadded.disableAnimations, true);
    expect(unpadded.boldText, true);
  });

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  testWidgets('MediaQuery.textScaleFactorOf', (WidgetTester tester) async {
    double outsideTextScaleFactor;
    double insideTextScaleFactor;

    await tester.pumpWidget(
      Builder(
        builder: (BuildContext context) {
          outsideTextScaleFactor = MediaQuery.textScaleFactorOf(context);
          return MediaQuery(
            data: const MediaQueryData(
              textScaleFactor: 4.0,
            ),
            child: Builder(
              builder: (BuildContext context) {
                insideTextScaleFactor = MediaQuery.textScaleFactorOf(context);
                return Container();
              },
            ),
          );
        },
      ),
    );

    expect(outsideTextScaleFactor, 1.0);
    expect(insideTextScaleFactor, 4.0);
  });
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  testWidgets('MediaQuery.platformBrightnessOf', (WidgetTester tester) async {
    Brightness outsideBrightness;
    Brightness insideBrightness;

    await tester.pumpWidget(
      Builder(
        builder: (BuildContext context) {
          outsideBrightness = MediaQuery.platformBrightnessOf(context);
          return MediaQuery(
            data: const MediaQueryData(
              platformBrightness: Brightness.dark,
            ),
            child: Builder(
              builder: (BuildContext context) {
                insideBrightness = MediaQuery.platformBrightnessOf(context);
                return Container();
              },
            ),
          );
        },
      ),
    );

    expect(outsideBrightness, Brightness.light);
    expect(insideBrightness, Brightness.dark);
  });

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  testWidgets('MediaQuery.boldTextOverride', (WidgetTester tester) async {
    bool outsideBoldTextOverride;
    bool insideBoldTextOverride;

    await tester.pumpWidget(
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      Builder(
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        builder: (BuildContext context) {
          outsideBoldTextOverride = MediaQuery.boldTextOverride(context);
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          return MediaQuery(
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            data: const MediaQueryData(
              boldText: true,
            ),
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            child: Builder(
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              builder: (BuildContext context) {
                insideBoldTextOverride = MediaQuery.boldTextOverride(context);
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                return Container();
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              },
            ),
          );
        },
      ),
    );

    expect(outsideBoldTextOverride, false);
    expect(insideBoldTextOverride, true);
  });
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}