flutter/packages/unit/test/widget/block_test.dart
2015-09-24 10:26:27 -07:00

64 lines
2.0 KiB
Dart

import 'package:sky/widgets.dart';
import 'package:test/test.dart';
import '../engine/mock_events.dart';
import 'widget_tester.dart';
final Key blockKey = new Key('test');
void main() {
test('Cannot scroll a non-overflowing block', () {
WidgetTester tester = new WidgetTester();
tester.pumpFrame(() {
return new Block([
new Container(
height: 200.0, // less than 600, the height of the test area
child: new Text('Hello')
)
],
key: blockKey);
});
tester.pumpFrameWithoutChange(); // for SizeObservers
Point middleOfContainer = tester.getCenter(tester.findText('Hello'));
Point target = tester.getCenter(tester.findWidget((widget) => widget.key == blockKey));
TestPointer pointer = new TestPointer();
tester.dispatchEvent(pointer.down(target), target);
tester.dispatchEvent(pointer.move(target + const Offset(0.0, -10.0)), target);
tester.pumpFrameWithoutChange(1.0);
expect(tester.getCenter(tester.findText('Hello')) == middleOfContainer, isTrue);
tester.dispatchEvent(pointer.up(), target);
});
test('Can scroll an overflowing block', () {
WidgetTester tester = new WidgetTester();
tester.pumpFrame(() {
return new Block([
new Container(
height: 2000.0, // more than 600, the height of the test area
child: new Text('Hello')
)
],
key: blockKey);
});
tester.pumpFrameWithoutChange(); // for SizeObservers
Point middleOfContainer = tester.getCenter(tester.findText('Hello'));
Point target = tester.getCenter(tester.findWidget((widget) => widget.key == blockKey));
TestPointer pointer = new TestPointer();
tester.dispatchEvent(pointer.down(target), target);
tester.dispatchEvent(pointer.move(target + const Offset(0.0, -10.0)), target);
tester.pumpFrameWithoutChange(1.0);
expect(tester.getCenter(tester.findText('Hello')) == middleOfContainer, isFalse);
tester.dispatchEvent(pointer.up(), target);
});
}