packages/flutter/test/cupertino/popup_surface_test.dart - mirrors/flutter.git - Git at Google

 // 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.

 // This file is run as part of a reduced test set in CI on Mac and Windows
 // machines.
 @Tags(<String>['reduced-test-set'])
 library;

 import 'package:flutter/cupertino.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter_test/flutter_test.dart';

 class _FilterTest extends StatelessWidget {
   const _FilterTest(Widget child, {this.brightness = Brightness.light}) : _child = child;
   final Brightness brightness;
   final Widget _child;

   @override
   Widget build(BuildContext context) {
     final Size size = MediaQuery.sizeOf(context);
     final double tileHeight = size.height / 4;
     final double tileWidth = size.width / 8;
     return CupertinoApp(
       home: Stack(
         fit: StackFit.expand,
         children: <Widget>[
           // 512 color tiles
           // 4 alpha levels (0.416, 0.25, 0.5, 0.75)
           for (int a = 0; a < 4; a++)
             for (int h = 0; h < 8; h++) // 8 hues
               for (int s = 0; s < 4; s++) // 4 saturation levels
                 for (int b = 0; b < 4; b++) // 4 brightness levels
                   Positioned(
                     left: h * tileWidth + b * tileWidth / 4,
                     top: a * tileHeight + s * tileHeight / 4,
                     height: tileHeight,
                     width: tileWidth,
                     child: ColoredBox(
                       color: HSVColor.fromAHSV(
                         0.5 + a / 8,
                         h * 45,
                         0.5 + s / 8,
                         0.5 + b / 8,
                       ).toColor(),
                     ),
                   ),
           Padding(
             padding: const EdgeInsets.all(32),
             child: CupertinoTheme(
               data: CupertinoThemeData(brightness: brightness),
               child: _child,
             ),
           ),
         ],
       ),
     );
   }
 }

 void main() {
   void disableVibranceForTest() {
     CupertinoPopupSurface.debugIsVibrancePainted = false;
     addTearDown(() {
       CupertinoPopupSurface.debugIsVibrancePainted = true;
     });
   }

   // Golden displays the color filter effect of the CupertinoPopupSurface
   // when the ambient brightness is light.
   testWidgets(
     'Brightness.light color filter',
     (WidgetTester tester) async {
       await tester.pumpWidget(
         const _FilterTest(
           CupertinoPopupSurface(blurSigma: 0, isSurfacePainted: false, child: SizedBox()),
         ),
       );

       await expectLater(
         find.byType(CupertinoApp),
         matchesGoldenFile('cupertinoPopupSurface.color-filter.light.png'),
       );
     },
     skip: kIsWasm, // https://github.com/flutter/flutter/issues/152026
   );

   // Golden displays the color filter effect of the CupertinoPopupSurface
   // when the ambient brightness is dark.
   testWidgets(
     'Brightness.dark color filter',
     (WidgetTester tester) async {
       await tester.pumpWidget(
         const _FilterTest(
           CupertinoPopupSurface(blurSigma: 0, isSurfacePainted: false, child: SizedBox()),
           brightness: Brightness.dark,
         ),
       );

       await expectLater(
         find.byType(CupertinoApp),
         matchesGoldenFile('cupertinoPopupSurface.color-filter.dark.png'),
       );
     },
     skip: kIsWasm, // https://github.com/flutter/flutter/issues/152026
   );

   // Golden displays color tiles without CupertinoPopupSurface being
   // displayed.
   testWidgets('Setting debugIsVibrancePainted to false removes the color filter', (
     WidgetTester tester,
   ) async {
     disableVibranceForTest();
     await tester.pumpWidget(
       const _FilterTest(
         CupertinoPopupSurface(blurSigma: 0, isSurfacePainted: false, child: SizedBox()),
       ),
     );

     // The BackdropFilter widget should not be mounted when blurSigma is 0 and
     // CupertinoPopupSurface.debugIsVibrancePainted is false.
     expect(
       find.descendant(
         of: find.byType(CupertinoPopupSurface),
         matching: find.byType(BackdropFilter),
       ),
       findsNothing,
     );

     await expectLater(
       find.byType(CupertinoApp),
       matchesGoldenFile('cupertinoPopupSurface.color-filter.removed.png'),
     );
   });

   // Golden displays the surface color of the CupertinoPopupSurface
   // in light mode.
   testWidgets('Brightness.light surface color', (WidgetTester tester) async {
     disableVibranceForTest();
     await tester.pumpWidget(
       const _FilterTest(CupertinoPopupSurface(blurSigma: 0, child: SizedBox())),
     );

     await expectLater(
       find.byType(CupertinoApp),
       matchesGoldenFile('cupertinoPopupSurface.surface-color.light.png'),
     );
   });

   // Golden displays the surface color of the CupertinoPopupSurface
   // in dark mode.
   testWidgets('Brightness.dark surface color', (WidgetTester tester) async {
     disableVibranceForTest();
     await tester.pumpWidget(
       const _FilterTest(
         CupertinoPopupSurface(blurSigma: 0, child: SizedBox()),
         brightness: Brightness.dark,
       ),
     );

     await expectLater(
       find.byType(CupertinoApp),
       matchesGoldenFile('cupertinoPopupSurface.surface-color.dark.png'),
     );
   });

   // Golden displays a CupertinoPopupSurface with the color removed. The result
   // should only display color tiles.
   testWidgets('Setting isSurfacePainted to false removes the surface color', (
     WidgetTester tester,
   ) async {
     disableVibranceForTest();
     await tester.pumpWidget(
       const _FilterTest(
         CupertinoPopupSurface(blurSigma: 0, isSurfacePainted: false, child: SizedBox()),
         brightness: Brightness.dark,
       ),
     );

     await expectLater(
       find.byType(CupertinoApp),
       matchesGoldenFile('cupertinoPopupSurface.surface-color.removed.png'),
     );
   });

   // Goldens display a CupertinoPopupSurface with no vibrance or surface
   // color, with blur sigmas of 5 and 30 (default).
   testWidgets(
     'Positive blurSigma applies blur',
     (WidgetTester tester) async {
       disableVibranceForTest();
       await tester.pumpWidget(
         const _FilterTest(
           CupertinoPopupSurface(isSurfacePainted: false, blurSigma: 5, child: SizedBox()),
         ),
       );

       await expectLater(
         find.byType(CupertinoApp),
         matchesGoldenFile('cupertinoPopupSurface.blur.5.png'),
       );

       await tester.pumpWidget(
         const _FilterTest(CupertinoPopupSurface(isSurfacePainted: false, child: SizedBox())),
       );

       await expectLater(
         find.byType(CupertinoApp),
         // 30 is the default blur sigma
         matchesGoldenFile('cupertinoPopupSurface.blur.30.png'),
       );
     },
     skip: kIsWasm, // https://github.com/flutter/flutter/issues/152026
   );

   // Golden displays a CupertinoPopupSurface with a blur sigma of 0. Because
   // the blur sigma is 0 and vibrance and surface are not painted, no popup
   // surface is displayed.
   testWidgets('Setting blurSigma to zero removes blur', (WidgetTester tester) async {
     disableVibranceForTest();
     await tester.pumpWidget(
       const _FilterTest(
         CupertinoPopupSurface(isSurfacePainted: false, blurSigma: 0, child: SizedBox()),
       ),
     );

     // The BackdropFilter widget should not be mounted when blurSigma is 0 and
     // CupertinoPopupSurface.isVibrancePainted is false.
     expect(
       find.descendant(
         of: find.byType(CupertinoPopupSurface),
         matching: find.byType(BackdropFilter),
       ),
       findsNothing,
     );

     await expectLater(
       find.byType(CupertinoApp),
       matchesGoldenFile('cupertinoPopupSurface.blur.0.png'),
     );

     await tester.pumpWidget(
       const _FilterTest(
         CupertinoPopupSurface(isSurfacePainted: false, blurSigma: 0, child: SizedBox()),
       ),
     );
   });

   testWidgets('Setting a blurSigma to a negative number throws', (WidgetTester tester) async {
     try {
       disableVibranceForTest();
       await tester.pumpWidget(
         _FilterTest(
           CupertinoPopupSurface(isSurfacePainted: false, blurSigma: -1, child: const SizedBox()),
         ),
       );

       fail('CupertinoPopupSurface did not throw when provided a negative blur sigma.');
     } on AssertionError catch (error) {
       expect(
         error.toString(),
         contains('CupertinoPopupSurface requires a non-negative blur sigma.'),
       );
     }
   });

   // Regression test for https://github.com/flutter/flutter/issues/154887.
   testWidgets(
     "Applying a FadeTransition to the CupertinoPopupSurface doesn't cause transparency",
     (WidgetTester tester) async {
       final controller = AnimationController(
         duration: const Duration(milliseconds: 100),
         vsync: const TestVSync(),
       );
       addTearDown(controller.dispose);
       controller.forward();

       await tester.pumpWidget(
         _FilterTest(
           FadeTransition(
             opacity: controller,
             child: const CupertinoPopupSurface(child: SizedBox()),
           ),
         ),
       );

       await tester.pump(const Duration(milliseconds: 50));

       // Golden should display a CupertinoPopupSurface with no transparency
       // directly underneath the surface. A small amount of transparency should be
       // present on the upper-left corner of the screen.
       //
       // If transparency (gray and white grid) is present underneath the surface,
       // the blendmode is being incorrectly applied.
       await expectLater(
         find.byType(CupertinoApp),
         matchesGoldenFile('cupertinoPopupSurface.blendmode-fix.0.png'),
       );

       await tester.pumpAndSettle();
     },
     variant: TargetPlatformVariant.only(TargetPlatform.iOS),
   );

   // Golden displays a CupertinoPopupSurface with all enabled features.
   //
   // CupertinoPopupSurface uses ImageFilter.compose, which applies an inner
   // filter first, followed by an outer filter (e.g. result =
   // outer(inner(source))).
   //
   // For CupertinoPopupSurface, this means that the pixels underlying the
   // surface are first saturated with a ColorFilter, and the resulting saturated
   // pixels are blurred with an ImageFilter.blur. This test verifies that this
   // order does not change.
   testWidgets('Saturation is applied before blur', (WidgetTester tester) async {
     await tester.pumpWidget(const _FilterTest(CupertinoPopupSurface(child: SizedBox())));

     await expectLater(
       find.byType(CupertinoApp),
       matchesGoldenFile('cupertinoPopupSurface.composition.png'),
     );

     disableVibranceForTest();
     await tester.pumpWidget(
       const _FilterTest(
         Stack(
           fit: StackFit.expand,
           children: <Widget>[
             CupertinoPopupSurface(isSurfacePainted: false, blurSigma: 0, child: SizedBox()),
             CupertinoPopupSurface(child: SizedBox()),
           ],
         ),
       ),
     );

     await expectLater(
       find.byType(CupertinoApp),
       matchesGoldenFile('cupertinoPopupSurface.composition.png'),
     );
   });
 }
	// 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.

	// This file is run as part of a reduced test set in CI on Mac and Windows
	// machines.
	@Tags(<String>['reduced-test-set'])
	library;

	import 'package:flutter/cupertino.dart';
	import 'package:flutter/foundation.dart';
	import 'package:flutter_test/flutter_test.dart';

	class _FilterTest extends StatelessWidget {
	const _FilterTest(Widget child, {this.brightness = Brightness.light}) : _child = child;
	final Brightness brightness;
	final Widget _child;

	@override
	Widget build(BuildContext context) {
	final Size size = MediaQuery.sizeOf(context);
	final double tileHeight = size.height / 4;
	final double tileWidth = size.width / 8;
	return CupertinoApp(
	home: Stack(
	fit: StackFit.expand,
	children: <Widget>[
	// 512 color tiles
	// 4 alpha levels (0.416, 0.25, 0.5, 0.75)
	for (int a = 0; a < 4; a++)
	for (int h = 0; h < 8; h++) // 8 hues
	for (int s = 0; s < 4; s++) // 4 saturation levels
	for (int b = 0; b < 4; b++) // 4 brightness levels
	Positioned(
	left: h * tileWidth + b * tileWidth / 4,
	top: a * tileHeight + s * tileHeight / 4,
	height: tileHeight,
	width: tileWidth,
	child: ColoredBox(
	color: HSVColor.fromAHSV(
	0.5 + a / 8,
	h * 45,
	0.5 + s / 8,
	0.5 + b / 8,
	).toColor(),
	),
	),
	Padding(
	padding: const EdgeInsets.all(32),
	child: CupertinoTheme(
	data: CupertinoThemeData(brightness: brightness),
	child: _child,
	),
	),
	],
	),
	);
	}
	}

	void main() {
	void disableVibranceForTest() {
	CupertinoPopupSurface.debugIsVibrancePainted = false;
	addTearDown(() {
	CupertinoPopupSurface.debugIsVibrancePainted = true;
	});
	}

	// Golden displays the color filter effect of the CupertinoPopupSurface
	// when the ambient brightness is light.
	testWidgets(
	'Brightness.light color filter',
	(WidgetTester tester) async {
	await tester.pumpWidget(
	const _FilterTest(
	CupertinoPopupSurface(blurSigma: 0, isSurfacePainted: false, child: SizedBox()),
	),
	);

	await expectLater(
	find.byType(CupertinoApp),
	matchesGoldenFile('cupertinoPopupSurface.color-filter.light.png'),
	);
	},
	skip: kIsWasm, // https://github.com/flutter/flutter/issues/152026
	);

	// Golden displays the color filter effect of the CupertinoPopupSurface
	// when the ambient brightness is dark.
	testWidgets(
	'Brightness.dark color filter',
	(WidgetTester tester) async {
	await tester.pumpWidget(
	const _FilterTest(
	CupertinoPopupSurface(blurSigma: 0, isSurfacePainted: false, child: SizedBox()),
	brightness: Brightness.dark,
	),
	);

	await expectLater(
	find.byType(CupertinoApp),
	matchesGoldenFile('cupertinoPopupSurface.color-filter.dark.png'),
	);
	},
	skip: kIsWasm, // https://github.com/flutter/flutter/issues/152026
	);

	// Golden displays color tiles without CupertinoPopupSurface being
	// displayed.
	testWidgets('Setting debugIsVibrancePainted to false removes the color filter', (
	WidgetTester tester,
	) async {
	disableVibranceForTest();
	await tester.pumpWidget(
	const _FilterTest(
	CupertinoPopupSurface(blurSigma: 0, isSurfacePainted: false, child: SizedBox()),
	),
	);

	// The BackdropFilter widget should not be mounted when blurSigma is 0 and
	// CupertinoPopupSurface.debugIsVibrancePainted is false.
	expect(
	find.descendant(
	of: find.byType(CupertinoPopupSurface),
	matching: find.byType(BackdropFilter),
	),
	findsNothing,
	);

	await expectLater(
	find.byType(CupertinoApp),
	matchesGoldenFile('cupertinoPopupSurface.color-filter.removed.png'),
	);
	});

	// Golden displays the surface color of the CupertinoPopupSurface
	// in light mode.
	testWidgets('Brightness.light surface color', (WidgetTester tester) async {
	disableVibranceForTest();
	await tester.pumpWidget(
	const _FilterTest(CupertinoPopupSurface(blurSigma: 0, child: SizedBox())),
	);

	await expectLater(
	find.byType(CupertinoApp),
	matchesGoldenFile('cupertinoPopupSurface.surface-color.light.png'),
	);
	});

	// Golden displays the surface color of the CupertinoPopupSurface
	// in dark mode.
	testWidgets('Brightness.dark surface color', (WidgetTester tester) async {
	disableVibranceForTest();
	await tester.pumpWidget(
	const _FilterTest(
	CupertinoPopupSurface(blurSigma: 0, child: SizedBox()),
	brightness: Brightness.dark,
	),
	);

	await expectLater(
	find.byType(CupertinoApp),
	matchesGoldenFile('cupertinoPopupSurface.surface-color.dark.png'),
	);
	});

	// Golden displays a CupertinoPopupSurface with the color removed. The result
	// should only display color tiles.
	testWidgets('Setting isSurfacePainted to false removes the surface color', (
	WidgetTester tester,
	) async {
	disableVibranceForTest();
	await tester.pumpWidget(
	const _FilterTest(
	CupertinoPopupSurface(blurSigma: 0, isSurfacePainted: false, child: SizedBox()),
	brightness: Brightness.dark,
	),
	);

	await expectLater(
	find.byType(CupertinoApp),
	matchesGoldenFile('cupertinoPopupSurface.surface-color.removed.png'),
	);
	});

	// Goldens display a CupertinoPopupSurface with no vibrance or surface
	// color, with blur sigmas of 5 and 30 (default).
	testWidgets(
	'Positive blurSigma applies blur',
	(WidgetTester tester) async {
	disableVibranceForTest();
	await tester.pumpWidget(
	const _FilterTest(
	CupertinoPopupSurface(isSurfacePainted: false, blurSigma: 5, child: SizedBox()),
	),
	);

	await expectLater(
	find.byType(CupertinoApp),
	matchesGoldenFile('cupertinoPopupSurface.blur.5.png'),
	);

	await tester.pumpWidget(
	const _FilterTest(CupertinoPopupSurface(isSurfacePainted: false, child: SizedBox())),
	);

	await expectLater(
	find.byType(CupertinoApp),
	// 30 is the default blur sigma
	matchesGoldenFile('cupertinoPopupSurface.blur.30.png'),
	);
	},
	skip: kIsWasm, // https://github.com/flutter/flutter/issues/152026
	);

	// Golden displays a CupertinoPopupSurface with a blur sigma of 0. Because
	// the blur sigma is 0 and vibrance and surface are not painted, no popup
	// surface is displayed.
	testWidgets('Setting blurSigma to zero removes blur', (WidgetTester tester) async {
	disableVibranceForTest();
	await tester.pumpWidget(
	const _FilterTest(
	CupertinoPopupSurface(isSurfacePainted: false, blurSigma: 0, child: SizedBox()),
	),
	);

	// The BackdropFilter widget should not be mounted when blurSigma is 0 and
	// CupertinoPopupSurface.isVibrancePainted is false.
	expect(
	find.descendant(
	of: find.byType(CupertinoPopupSurface),
	matching: find.byType(BackdropFilter),
	),
	findsNothing,
	);

	await expectLater(
	find.byType(CupertinoApp),
	matchesGoldenFile('cupertinoPopupSurface.blur.0.png'),
	);

	await tester.pumpWidget(
	const _FilterTest(
	CupertinoPopupSurface(isSurfacePainted: false, blurSigma: 0, child: SizedBox()),
	),
	);
	});

	testWidgets('Setting a blurSigma to a negative number throws', (WidgetTester tester) async {
	try {
	disableVibranceForTest();
	await tester.pumpWidget(
	_FilterTest(
	CupertinoPopupSurface(isSurfacePainted: false, blurSigma: -1, child: const SizedBox()),
	),
	);

	fail('CupertinoPopupSurface did not throw when provided a negative blur sigma.');
	} on AssertionError catch (error) {
	expect(
	error.toString(),
	contains('CupertinoPopupSurface requires a non-negative blur sigma.'),
	);
	}
	});

	// Regression test for https://github.com/flutter/flutter/issues/154887.
	testWidgets(
	"Applying a FadeTransition to the CupertinoPopupSurface doesn't cause transparency",
	(WidgetTester tester) async {
	final controller = AnimationController(
	duration: const Duration(milliseconds: 100),
	vsync: const TestVSync(),
	);
	addTearDown(controller.dispose);
	controller.forward();

	await tester.pumpWidget(
	_FilterTest(
	FadeTransition(
	opacity: controller,
	child: const CupertinoPopupSurface(child: SizedBox()),
	),
	),
	);

	await tester.pump(const Duration(milliseconds: 50));

	// Golden should display a CupertinoPopupSurface with no transparency
	// directly underneath the surface. A small amount of transparency should be
	// present on the upper-left corner of the screen.
	//
	// If transparency (gray and white grid) is present underneath the surface,
	// the blendmode is being incorrectly applied.
	await expectLater(
	find.byType(CupertinoApp),
	matchesGoldenFile('cupertinoPopupSurface.blendmode-fix.0.png'),
	);

	await tester.pumpAndSettle();
	},
	variant: TargetPlatformVariant.only(TargetPlatform.iOS),
	);

	// Golden displays a CupertinoPopupSurface with all enabled features.
	//
	// CupertinoPopupSurface uses ImageFilter.compose, which applies an inner
	// filter first, followed by an outer filter (e.g. result =
	// outer(inner(source))).
	//
	// For CupertinoPopupSurface, this means that the pixels underlying the
	// surface are first saturated with a ColorFilter, and the resulting saturated
	// pixels are blurred with an ImageFilter.blur. This test verifies that this
	// order does not change.
	testWidgets('Saturation is applied before blur', (WidgetTester tester) async {
	await tester.pumpWidget(const _FilterTest(CupertinoPopupSurface(child: SizedBox())));

	await expectLater(
	find.byType(CupertinoApp),
	matchesGoldenFile('cupertinoPopupSurface.composition.png'),
	);

	disableVibranceForTest();
	await tester.pumpWidget(
	const _FilterTest(
	Stack(
	fit: StackFit.expand,
	children: <Widget>[
	CupertinoPopupSurface(isSurfacePainted: false, blurSigma: 0, child: SizedBox()),
	CupertinoPopupSurface(child: SizedBox()),
	],
	),
	),
	);

	await expectLater(
	find.byType(CupertinoApp),
	matchesGoldenFile('cupertinoPopupSurface.composition.png'),
	);
	});
	}