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// 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/material.dart';
import 'package:flutter_test/flutter_test.dart';
import '../rendering/mock_canvas.dart';
void main() {
testWidgets('Divider control test', (WidgetTester tester) async {
await tester.pumpWidget(
const Directionality(
textDirection: TextDirection.ltr,
child: Center(
child: Divider(),
),
),
);
final RenderBox box = tester.firstRenderObject(find.byType(Divider));
expect(box.size.height, 16.0);
final Container container = tester.widget(find.byType(Container));
final BoxDecoration decoration = container.decoration! as BoxDecoration;
expect(decoration.border!.bottom.width, 0.0);
});
testWidgets('Divider custom thickness', (WidgetTester tester) async {
await tester.pumpWidget(
const Directionality(
textDirection: TextDirection.ltr,
child: Center(
child: Divider(
thickness: 5.0,
),
),
),
);
final Container container = tester.widget(find.byType(Container));
final BoxDecoration decoration = container.decoration! as BoxDecoration;
expect(decoration.border!.bottom.width, 5.0);
});
testWidgets('Horizontal divider custom indentation', (WidgetTester tester) async {
const double customIndent = 10.0;
Rect dividerRect;
Rect lineRect;
await tester.pumpWidget(
const Directionality(
textDirection: TextDirection.ltr,
child: Center(
child: Divider(
indent: customIndent,
),
),
),
);
// The divider line is drawn with a DecoratedBox with a border
dividerRect = tester.getRect(find.byType(Divider));
lineRect = tester.getRect(find.byType(DecoratedBox));
expect(lineRect.left, dividerRect.left + customIndent);
expect(lineRect.right, dividerRect.right);
await tester.pumpWidget(
const Directionality(
textDirection: TextDirection.ltr,
child: Center(
child: Divider(
endIndent: customIndent,
),
),
),
);
dividerRect = tester.getRect(find.byType(Divider));
lineRect = tester.getRect(find.byType(DecoratedBox));
expect(lineRect.left, dividerRect.left);
expect(lineRect.right, dividerRect.right - customIndent);
await tester.pumpWidget(
const Directionality(
textDirection: TextDirection.ltr,
child: Center(
child: Divider(
indent: customIndent,
endIndent: customIndent,
),
),
),
);
dividerRect = tester.getRect(find.byType(Divider));
lineRect = tester.getRect(find.byType(DecoratedBox));
expect(lineRect.left, dividerRect.left + customIndent);
expect(lineRect.right, dividerRect.right - customIndent);
});
testWidgets('Vertical Divider Test', (WidgetTester tester) async {
await tester.pumpWidget(
const Directionality(
textDirection: TextDirection.ltr,
child: Center(
child: VerticalDivider(),
),
),
);
final RenderBox box = tester.firstRenderObject(find.byType(VerticalDivider));
expect(box.size.width, 16.0);
final Container container = tester.widget(find.byType(Container));
final BoxDecoration decoration = container.decoration! as BoxDecoration;
final Border border = decoration.border! as Border;
expect(border.left.width, 0.0);
});
testWidgets('Divider custom thickness', (WidgetTester tester) async {
await tester.pumpWidget(
const Directionality(
textDirection: TextDirection.ltr,
child: Center(
child: VerticalDivider(
thickness: 5.0,
),
),
),
);
final Container container = tester.widget(find.byType(Container));
final BoxDecoration decoration = container.decoration! as BoxDecoration;
final Border border = decoration.border! as Border;
expect(border.left.width, 5.0);
});
testWidgets('Vertical Divider Test 2', (WidgetTester tester) async {
await tester.pumpWidget(
MaterialApp(
home: Material(
child: SizedBox(
height: 24.0,
child: Row(
children: const <Widget>[
Text('Hey.'),
VerticalDivider(),
],
),
),
),
),
);
final RenderBox box = tester.firstRenderObject(find.byType(VerticalDivider));
final RenderBox containerBox = tester.firstRenderObject(find.byType(Container).last);
expect(box.size.width, 16.0);
expect(containerBox.size.height, 600.0);
expect(find.byType(VerticalDivider), paints..path(strokeWidth: 0.0));
});
testWidgets('Vertical divider custom indentation', (WidgetTester tester) async {
const double customIndent = 10.0;
Rect dividerRect;
Rect lineRect;
await tester.pumpWidget(
const Directionality(
textDirection: TextDirection.ltr,
child: Center(
child: VerticalDivider(
indent: customIndent,
),
),
),
);
// The divider line is drawn with a DecoratedBox with a border
dividerRect = tester.getRect(find.byType(VerticalDivider));
lineRect = tester.getRect(find.byType(DecoratedBox));
expect(lineRect.top, dividerRect.top + customIndent);
expect(lineRect.bottom, dividerRect.bottom);
await tester.pumpWidget(
const Directionality(
textDirection: TextDirection.ltr,
child: Center(
child: VerticalDivider(
endIndent: customIndent,
),
),
),
);
dividerRect = tester.getRect(find.byType(VerticalDivider));
lineRect = tester.getRect(find.byType(DecoratedBox));
expect(lineRect.top, dividerRect.top);
expect(lineRect.bottom, dividerRect.bottom - customIndent);
await tester.pumpWidget(
const Directionality(
textDirection: TextDirection.ltr,
child: Center(
child: VerticalDivider(
indent: customIndent,
endIndent: customIndent,
),
),
),
);
dividerRect = tester.getRect(find.byType(VerticalDivider));
lineRect = tester.getRect(find.byType(DecoratedBox));
expect(lineRect.top, dividerRect.top + customIndent);
expect(lineRect.bottom, dividerRect.bottom - customIndent);
});
// Regression test for https://github.com/flutter/flutter/issues/39533
testWidgets('createBorderSide does not throw exception with null context', (WidgetTester tester) async {
// Passing a null context used to throw an exception but no longer does.
expect(() => Divider.createBorderSide(null), isNot(throwsAssertionError));
expect(() => Divider.createBorderSide(null), isNot(throwsNoSuchMethodError));
});
}