| // 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/foundation.dart'; |
| import 'package:flutter/material.dart'; |
| import 'package:flutter_test/flutter_test.dart'; |
| |
| void main() { |
| testWidgets('Stepper tap callback test', (WidgetTester tester) async { |
| int index = 0; |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Material( |
| child: Stepper( |
| onStepTapped: (int i) { |
| index = i; |
| }, |
| steps: const <Step>[ |
| Step( |
| title: Text('Step 1'), |
| content: SizedBox( |
| width: 100.0, |
| height: 100.0, |
| ), |
| ), |
| Step( |
| title: Text('Step 2'), |
| content: SizedBox( |
| width: 100.0, |
| height: 100.0, |
| ), |
| ), |
| ], |
| ), |
| ), |
| ), |
| ); |
| await tester.tap(find.text('Step 2')); |
| expect(index, 1); |
| }); |
| |
| testWidgets('Stepper expansion test', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Center( |
| child: Material( |
| child: Stepper( |
| steps: const <Step>[ |
| Step( |
| title: Text('Step 1'), |
| content: SizedBox( |
| width: 100.0, |
| height: 100.0, |
| ), |
| ), |
| Step( |
| title: Text('Step 2'), |
| content: SizedBox( |
| width: 200.0, |
| height: 200.0, |
| ), |
| ), |
| ], |
| ), |
| ), |
| ), |
| ), |
| ); |
| |
| RenderBox box = tester.renderObject(find.byType(Stepper)); |
| expect(box.size.height, 332.0); |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Center( |
| child: Material( |
| child: Stepper( |
| currentStep: 1, |
| steps: const <Step>[ |
| Step( |
| title: Text('Step 1'), |
| content: SizedBox( |
| width: 100.0, |
| height: 100.0, |
| ), |
| ), |
| Step( |
| title: Text('Step 2'), |
| content: SizedBox( |
| width: 200.0, |
| height: 200.0, |
| ), |
| ), |
| ], |
| ), |
| ), |
| ), |
| ), |
| ); |
| |
| await tester.pump(const Duration(milliseconds: 100)); |
| box = tester.renderObject(find.byType(Stepper)); |
| expect(box.size.height, greaterThan(332.0)); |
| await tester.pump(const Duration(milliseconds: 100)); |
| box = tester.renderObject(find.byType(Stepper)); |
| expect(box.size.height, 432.0); |
| }); |
| |
| testWidgets('Stepper horizontal size test', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Center( |
| child: Material( |
| child: Stepper( |
| type: StepperType.horizontal, |
| steps: const <Step>[ |
| Step( |
| title: Text('Step 1'), |
| content: SizedBox( |
| width: 100.0, |
| height: 100.0, |
| ), |
| ), |
| ], |
| ), |
| ), |
| ), |
| ), |
| ); |
| |
| final RenderBox box = tester.renderObject(find.byType(Stepper)); |
| expect(box.size.height, 600.0); |
| }); |
| |
| testWidgets('Stepper visibility test', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Material( |
| child: Stepper( |
| type: StepperType.horizontal, |
| steps: const <Step>[ |
| Step( |
| title: Text('Step 1'), |
| content: Text('A'), |
| ), |
| Step( |
| title: Text('Step 2'), |
| content: Text('B'), |
| ), |
| ], |
| ), |
| ), |
| ), |
| ); |
| |
| expect(find.text('A'), findsOneWidget); |
| expect(find.text('B'), findsNothing); |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Material( |
| child: Stepper( |
| currentStep: 1, |
| type: StepperType.horizontal, |
| steps: const <Step>[ |
| Step( |
| title: Text('Step 1'), |
| content: Text('A'), |
| ), |
| Step( |
| title: Text('Step 2'), |
| content: Text('B'), |
| ), |
| ], |
| ), |
| ), |
| ), |
| ); |
| |
| expect(find.text('A'), findsNothing); |
| expect(find.text('B'), findsOneWidget); |
| }); |
| |
| testWidgets('Stepper button test', (WidgetTester tester) async { |
| bool continuePressed = false; |
| bool cancelPressed = false; |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Material( |
| child: Stepper( |
| type: StepperType.horizontal, |
| onStepContinue: () { |
| continuePressed = true; |
| }, |
| onStepCancel: () { |
| cancelPressed = true; |
| }, |
| steps: const <Step>[ |
| Step( |
| title: Text('Step 1'), |
| content: SizedBox( |
| width: 100.0, |
| height: 100.0, |
| ), |
| ), |
| Step( |
| title: Text('Step 2'), |
| content: SizedBox( |
| width: 200.0, |
| height: 200.0, |
| ), |
| ), |
| ], |
| ), |
| ), |
| ), |
| ); |
| |
| await tester.tap(find.text('CONTINUE')); |
| await tester.tap(find.text('CANCEL')); |
| |
| expect(continuePressed, isTrue); |
| expect(cancelPressed, isTrue); |
| }); |
| |
| testWidgets('Stepper disabled step test', (WidgetTester tester) async { |
| int index = 0; |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Material( |
| child: Stepper( |
| onStepTapped: (int i) { |
| index = i; |
| }, |
| steps: const <Step>[ |
| Step( |
| title: Text('Step 1'), |
| content: SizedBox( |
| width: 100.0, |
| height: 100.0, |
| ), |
| ), |
| Step( |
| title: Text('Step 2'), |
| state: StepState.disabled, |
| content: SizedBox( |
| width: 100.0, |
| height: 100.0, |
| ), |
| ), |
| ], |
| ), |
| ), |
| ), |
| ); |
| |
| await tester.tap(find.text('Step 2')); |
| expect(index, 0); |
| }); |
| |
| testWidgets('Stepper scroll test', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Material( |
| child: Stepper( |
| steps: const <Step>[ |
| Step( |
| title: Text('Step 1'), |
| content: SizedBox( |
| width: 100.0, |
| height: 300.0, |
| ), |
| ), |
| Step( |
| title: Text('Step 2'), |
| content: SizedBox( |
| width: 100.0, |
| height: 300.0, |
| ), |
| ), |
| Step( |
| title: Text('Step 3'), |
| content: SizedBox( |
| width: 100.0, |
| height: 100.0, |
| ), |
| ), |
| ], |
| ), |
| ), |
| ), |
| ); |
| |
| final ScrollableState scrollableState = tester.firstState(find.byType(Scrollable)); |
| expect(scrollableState.position.pixels, 0.0); |
| |
| await tester.tap(find.text('Step 3')); |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Material( |
| child: Stepper( |
| currentStep: 2, |
| steps: const <Step>[ |
| Step( |
| title: Text('Step 1'), |
| content: SizedBox( |
| width: 100.0, |
| height: 300.0, |
| ), |
| ), |
| Step( |
| title: Text('Step 2'), |
| content: SizedBox( |
| width: 100.0, |
| height: 300.0, |
| ), |
| ), |
| Step( |
| title: Text('Step 3'), |
| content: SizedBox( |
| width: 100.0, |
| height: 100.0, |
| ), |
| ), |
| ], |
| ), |
| ), |
| ), |
| ); |
| |
| await tester.pump(const Duration(milliseconds: 100)); |
| expect(scrollableState.position.pixels, greaterThan(0.0)); |
| }); |
| |
| testWidgets('Stepper index test', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Center( |
| child: Material( |
| child: Stepper( |
| steps: const <Step>[ |
| Step( |
| title: Text('A'), |
| state: StepState.complete, |
| content: SizedBox( |
| width: 100.0, |
| height: 100.0, |
| ), |
| ), |
| Step( |
| title: Text('B'), |
| content: SizedBox( |
| width: 100.0, |
| height: 100.0, |
| ), |
| ), |
| ], |
| ), |
| ), |
| ), |
| ), |
| ); |
| |
| expect(find.text('1'), findsNothing); |
| expect(find.text('2'), findsOneWidget); |
| }); |
| |
| testWidgets('Stepper custom controls test', (WidgetTester tester) async { |
| bool continuePressed = false; |
| void setContinue() { |
| continuePressed = true; |
| } |
| |
| bool canceledPressed = false; |
| void setCanceled() { |
| canceledPressed = true; |
| } |
| |
| final ControlsWidgetBuilder builder = |
| (BuildContext context, { VoidCallback? onStepContinue, VoidCallback? onStepCancel }) { |
| return Container( |
| margin: const EdgeInsets.only(top: 16.0), |
| child: ConstrainedBox( |
| constraints: const BoxConstraints.tightFor(height: 48.0), |
| child: Row( |
| children: <Widget>[ |
| TextButton( |
| onPressed: onStepContinue, |
| child: const Text('Let us continue!'), |
| ), |
| Container( |
| margin: const EdgeInsetsDirectional.only(start: 8.0), |
| child: TextButton( |
| onPressed: onStepCancel, |
| child: const Text('Cancel This!'), |
| ), |
| ), |
| ], |
| ), |
| ), |
| ); |
| }; |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Center( |
| child: Material( |
| child: Stepper( |
| controlsBuilder: builder, |
| onStepCancel: setCanceled, |
| onStepContinue: setContinue, |
| steps: const <Step>[ |
| Step( |
| title: Text('A'), |
| state: StepState.complete, |
| content: SizedBox( |
| width: 100.0, |
| height: 100.0, |
| ), |
| ), |
| Step( |
| title: Text('B'), |
| content: SizedBox( |
| width: 100.0, |
| height: 100.0, |
| ), |
| ), |
| ], |
| ), |
| ), |
| ), |
| ), |
| ); |
| |
| // 2 because stepper creates a set of controls for each step |
| expect(find.text('Let us continue!'), findsNWidgets(2)); |
| expect(find.text('Cancel This!'), findsNWidgets(2)); |
| |
| await tester.tap(find.text('Cancel This!').first); |
| await tester.pumpAndSettle(); |
| await tester.tap(find.text('Let us continue!').first); |
| await tester.pumpAndSettle(); |
| |
| expect(canceledPressed, isTrue); |
| expect(continuePressed, isTrue); |
| }); |
| |
| testWidgets('Stepper error test', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Center( |
| child: Material( |
| child: Stepper( |
| steps: const <Step>[ |
| Step( |
| title: Text('A'), |
| state: StepState.error, |
| content: SizedBox( |
| width: 100.0, |
| height: 100.0, |
| ), |
| ), |
| ], |
| ), |
| ), |
| ), |
| ), |
| ); |
| |
| expect(find.text('!'), findsOneWidget); |
| }); |
| |
| testWidgets('Nested stepper error test', (WidgetTester tester) async { |
| late FlutterErrorDetails errorDetails; |
| final FlutterExceptionHandler? oldHandler = FlutterError.onError; |
| FlutterError.onError = (FlutterErrorDetails details) { |
| errorDetails = details; |
| }; |
| try { |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Material( |
| child: Stepper( |
| type: StepperType.horizontal, |
| steps: <Step>[ |
| Step( |
| title: const Text('Step 2'), |
| content: Stepper( |
| type: StepperType.vertical, |
| steps: const <Step>[ |
| Step( |
| title: Text('Nested step 1'), |
| content: Text('A'), |
| ), |
| Step( |
| title: Text('Nested step 2'), |
| content: Text('A'), |
| ), |
| ], |
| ), |
| ), |
| const Step( |
| title: Text('Step 1'), |
| content: Text('A'), |
| ), |
| ], |
| ), |
| ), |
| ), |
| ); |
| } finally { |
| FlutterError.onError = oldHandler; |
| } |
| |
| expect(errorDetails.stack, isNotNull); |
| // Check the ErrorDetails without the stack trace |
| final String fullErrorMessage = errorDetails.toString(); |
| final List<String> lines = fullErrorMessage.split('\n'); |
| // The lines in the middle of the error message contain the stack trace |
| // which will change depending on where the test is run. |
| final String errorMessage = lines.takeWhile( |
| (String line) => line != '', |
| ).join('\n'); |
| expect(errorMessage.length, lessThan(fullErrorMessage.length)); |
| expect(errorMessage, startsWith( |
| '══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞════════════════════════\n' |
| 'The following assertion was thrown building Stepper(' |
| )); |
| // The description string of the stepper looks slightly different depending |
| // on the platform and is omitted here. |
| expect(errorMessage, endsWith( |
| '):\n' |
| 'Steppers must not be nested.\n' |
| 'The material specification advises that one should avoid\n' |
| 'embedding steppers within steppers.\n' |
| 'https://material.io/archive/guidelines/components/steppers.html#steppers-usage' |
| )); |
| }); |
| |
| ///https://github.com/flutter/flutter/issues/16920 |
| testWidgets('Stepper icons size test', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Material( |
| child: Stepper( |
| steps: const <Step>[ |
| Step( |
| title: Text('A'), |
| state: StepState.editing, |
| content: SizedBox(width: 100.0, height: 100.0), |
| ), |
| Step( |
| title: Text('B'), |
| state: StepState.complete, |
| content: SizedBox(width: 100.0, height: 100.0), |
| ), |
| ], |
| ), |
| ), |
| ), |
| ); |
| |
| RenderBox renderObject = tester.renderObject(find.byIcon(Icons.edit)); |
| expect(renderObject.size, equals(const Size.square(18.0))); |
| |
| renderObject = tester.renderObject(find.byIcon(Icons.check)); |
| expect(renderObject.size, equals(const Size.square(18.0))); |
| }); |
| |
| testWidgets('Stepper physics scroll error test', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Material( |
| child: ListView( |
| children: <Widget>[ |
| Stepper( |
| steps: const <Step>[ |
| Step(title: Text('Step 1'), content: Text('Text 1')), |
| Step(title: Text('Step 2'), content: Text('Text 2')), |
| Step(title: Text('Step 3'), content: Text('Text 3')), |
| Step(title: Text('Step 4'), content: Text('Text 4')), |
| Step(title: Text('Step 5'), content: Text('Text 5')), |
| Step(title: Text('Step 6'), content: Text('Text 6')), |
| Step(title: Text('Step 7'), content: Text('Text 7')), |
| Step(title: Text('Step 8'), content: Text('Text 8')), |
| Step(title: Text('Step 9'), content: Text('Text 9')), |
| Step(title: Text('Step 10'), content: Text('Text 10')), |
| ], |
| ), |
| const Text('Text After Stepper'), |
| ], |
| ), |
| ), |
| ), |
| ); |
| |
| await tester.fling(find.byType(Stepper), const Offset(0.0, -100.0), 1000.0); |
| await tester.pumpAndSettle(); |
| |
| expect(find.text('Text After Stepper'), findsNothing); |
| }); |
| |
| testWidgets("Vertical Stepper can't be focused when disabled.", (WidgetTester tester) async { |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Material( |
| child: Stepper( |
| currentStep: 0, |
| type: StepperType.vertical, |
| steps: const <Step>[ |
| Step( |
| title: Text('Step 0'), |
| state: StepState.disabled, |
| content: Text('Text 0'), |
| ), |
| ], |
| ), |
| ), |
| ), |
| ); |
| await tester.pump(); |
| |
| final FocusNode disabledNode = Focus.of(tester.element(find.text('Step 0')), nullOk: true, scopeOk: true)!; |
| disabledNode.requestFocus(); |
| await tester.pump(); |
| expect(disabledNode.hasPrimaryFocus, isFalse); |
| }); |
| |
| testWidgets("Horizontal Stepper can't be focused when disabled.", (WidgetTester tester) async { |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Material( |
| child: Stepper( |
| currentStep: 0, |
| type: StepperType.horizontal, |
| steps: const <Step>[ |
| Step( |
| title: Text('Step 0'), |
| state: StepState.disabled, |
| content: Text('Text 0'), |
| ), |
| ], |
| ), |
| ), |
| ), |
| ); |
| await tester.pump(); |
| |
| final FocusNode disabledNode = Focus.of(tester.element(find.text('Step 0')), nullOk: true, scopeOk: true)!; |
| disabledNode.requestFocus(); |
| await tester.pump(); |
| expect(disabledNode.hasPrimaryFocus, isFalse); |
| }); |
| |
| testWidgets('Stepper header title should not overflow', (WidgetTester tester) async { |
| const String longText = |
| 'A long long long long long long long long long long long long text'; |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Material( |
| child: ListView( |
| children: <Widget>[ |
| Stepper( |
| steps: const <Step>[ |
| Step( |
| title: Text(longText), |
| content: Text('Text content') |
| ), |
| ], |
| ), |
| ], |
| ), |
| ), |
| ), |
| ); |
| |
| expect(tester.takeException(), isNull); |
| }); |
| |
| testWidgets('Stepper header subtitle should not overflow', (WidgetTester tester) async { |
| const String longText = |
| 'A long long long long long long long long long long long long text'; |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Material( |
| child: ListView( |
| children: <Widget>[ |
| Stepper( |
| steps: const <Step>[ |
| Step( |
| title: Text('Regular title'), |
| subtitle: Text(longText), |
| content: Text('Text content') |
| ), |
| ], |
| ), |
| ], |
| ), |
| ), |
| ), |
| ); |
| |
| expect(tester.takeException(), isNull); |
| }); |
| |
| testWidgets('Stepper enabled button styles', (WidgetTester tester) async { |
| Widget buildFrame(ThemeData theme) { |
| return MaterialApp( |
| theme: theme, |
| home: Material( |
| child: Stepper( |
| type: StepperType.horizontal, |
| onStepCancel: () { }, |
| onStepContinue: () { }, |
| steps: const <Step>[ |
| Step( |
| title: Text('step1'), |
| content: SizedBox(width: 100, height: 100), |
| ), |
| ], |
| ), |
| ), |
| ); |
| } |
| |
| Material buttonMaterial(String label) { |
| return tester.widget<Material>( |
| find.descendant(of: find.widgetWithText(TextButton, label), matching: find.byType(Material)) |
| ); |
| } |
| |
| // The checks that follow verify that the layout and appearance of |
| // the default enabled Stepper buttons have not changed even |
| // though the FlatButtons have been replaced by TextButtons. |
| |
| const OutlinedBorder buttonShape = RoundedRectangleBorder(borderRadius: BorderRadius.all(Radius.circular(2))); |
| const Rect continueButtonRect = Rect.fromLTRB(24.0, 212.0, 168.0, 260.0); |
| const Rect cancelButtonRect = Rect.fromLTRB(176.0, 212.0, 292.0, 260.0); |
| |
| await tester.pumpWidget(buildFrame(ThemeData.light())); |
| |
| expect(buttonMaterial('CONTINUE').color!.value, 0xff2196f3); |
| expect(buttonMaterial('CONTINUE').textStyle!.color!.value, 0xffffffff); |
| expect(buttonMaterial('CONTINUE').shape, buttonShape); |
| expect(tester.getRect(find.widgetWithText(TextButton, 'CONTINUE')), continueButtonRect); |
| |
| expect(buttonMaterial('CANCEL').color!.value, 0); |
| expect(buttonMaterial('CANCEL').textStyle!.color!.value, 0x8a000000); |
| expect(buttonMaterial('CANCEL').shape, buttonShape); |
| expect(tester.getRect(find.widgetWithText(TextButton, 'CANCEL')), cancelButtonRect); |
| |
| await tester.pumpWidget(buildFrame(ThemeData.dark())); |
| await tester.pumpAndSettle(); // Complete the theme animation. |
| |
| expect(buttonMaterial('CONTINUE').color!.value, 0); |
| expect(buttonMaterial('CONTINUE').textStyle!.color!.value, 0xffffffff); |
| expect(buttonMaterial('CONTINUE').shape, buttonShape); |
| expect(tester.getRect(find.widgetWithText(TextButton, 'CONTINUE')), continueButtonRect); |
| |
| expect(buttonMaterial('CANCEL').color!.value, 0); |
| expect(buttonMaterial('CANCEL').textStyle!.color!.value, 0xb3ffffff); |
| expect(buttonMaterial('CANCEL').shape, buttonShape); |
| expect(tester.getRect(find.widgetWithText(TextButton, 'CANCEL')), cancelButtonRect); |
| }); |
| |
| testWidgets('Stepper disabled button styles', (WidgetTester tester) async { |
| Widget buildFrame(ThemeData theme) { |
| return MaterialApp( |
| theme: theme, |
| home: Material( |
| child: Stepper( |
| type: StepperType.horizontal, |
| steps: const <Step>[ |
| Step( |
| title: Text('step1'), |
| content: SizedBox(width: 100, height: 100), |
| ), |
| ], |
| ), |
| ), |
| ); |
| } |
| |
| Material buttonMaterial(String label) { |
| return tester.widget<Material>( |
| find.descendant(of: find.widgetWithText(TextButton, label), matching: find.byType(Material)) |
| ); |
| } |
| |
| // The checks that follow verify that the appearance of the |
| // default disabled Stepper buttons have not changed even though |
| // the FlatButtons have been replaced by TextButtons. |
| |
| await tester.pumpWidget(buildFrame(ThemeData.light())); |
| |
| expect(buttonMaterial('CONTINUE').color!.value, 0); |
| expect(buttonMaterial('CONTINUE').textStyle!.color!.value, 0x61000000); |
| |
| expect(buttonMaterial('CANCEL').color!.value, 0); |
| expect(buttonMaterial('CANCEL').textStyle!.color!.value, 0x61000000); |
| |
| await tester.pumpWidget(buildFrame(ThemeData.dark())); |
| await tester.pumpAndSettle(); // Complete the theme animation. |
| |
| expect(buttonMaterial('CONTINUE').color!.value, 0); |
| expect(buttonMaterial('CONTINUE').textStyle!.color!.value, 0x61ffffff); |
| |
| expect(buttonMaterial('CANCEL').color!.value, 0); |
| expect(buttonMaterial('CANCEL').textStyle!.color!.value, 0x61ffffff); |
| }); |
| |
| testWidgets('Vertical and Horizontal Stepper physics test', (WidgetTester tester) async { |
| const ScrollPhysics physics = NeverScrollableScrollPhysics(); |
| |
| for(final StepperType type in StepperType.values) { |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Material( |
| child: Stepper( |
| physics: physics, |
| type: type, |
| steps: const <Step>[ |
| Step( |
| title: Text('Step 1'), |
| content: SizedBox( |
| width: 100.0, |
| height: 100.0, |
| ), |
| ), |
| ], |
| ), |
| ), |
| ), |
| ); |
| |
| final ListView listView = tester.widget<ListView>(find.descendant(of: find.byType(Stepper), matching: find.byType(ListView))); |
| expect(listView.physics, physics); |
| } |
| }); |
| } |
