flutter/packages/unit/test/widget/dismissable_test.dart

283 lines
9.7 KiB
Dart

import 'package:flutter/rendering.dart';
import 'package:flutter/widgets.dart';
import 'package:test/test.dart';
import '../engine/mock_events.dart';
import 'widget_tester.dart';
const double itemExtent = 100.0;
ScrollDirection scrollDirection = ScrollDirection.vertical;
DismissDirection dismissDirection = DismissDirection.horizontal;
List<int> dismissedItems = <int>[];
void handleOnResized(item) {
expect(dismissedItems.contains(item), isFalse);
}
void handleOnDismissed(item) {
expect(dismissedItems.contains(item), isFalse);
dismissedItems.add(item);
}
Widget buildDismissableItem(BuildContext context, int item) {
return new Dismissable(
key: new ValueKey<int>(item),
direction: dismissDirection,
onDismissed: () { handleOnDismissed(item); },
onResized: () { handleOnResized(item); },
child: new Container(
width: itemExtent,
height: itemExtent,
child: new Text(item.toString())
)
);
}
Widget widgetBuilder() {
return new Container(
padding: const EdgeDims.all(10.0),
child: new ScrollableList<int>(
items: [0, 1, 2, 3, 4].where((int i) => !dismissedItems.contains(i)).toList(),
itemBuilder: buildDismissableItem,
scrollDirection: scrollDirection,
itemExtent: itemExtent
)
);
}
void dismissElement(WidgetTester tester, Element itemElement, { DismissDirection gestureDirection }) {
assert(itemElement != null);
assert(gestureDirection != DismissDirection.horizontal);
assert(gestureDirection != DismissDirection.vertical);
Point downLocation;
Point upLocation;
switch(gestureDirection) {
case DismissDirection.left:
// Note: getTopRight() returns a point that's just beyond
// itemWidget's right edge and outside the Dismissable event
// listener's bounds.
downLocation = tester.getTopRight(itemElement) + const Offset(-0.1, 0.0);
upLocation = tester.getTopLeft(itemElement);
break;
case DismissDirection.right:
downLocation = tester.getTopLeft(itemElement);
upLocation = tester.getTopRight(itemElement);
break;
case DismissDirection.up:
// Note: getBottomLeft() returns a point that's just below
// itemWidget's bottom edge and outside the Dismissable event
// listener's bounds.
downLocation = tester.getBottomLeft(itemElement) + const Offset(0.0, -0.1);
upLocation = tester.getTopLeft(itemElement);
break;
case DismissDirection.down:
downLocation = tester.getTopLeft(itemElement);
upLocation = tester.getBottomLeft(itemElement);
break;
default:
fail("unsupported gestureDirection");
}
TestPointer pointer = new TestPointer(5);
tester.dispatchEvent(pointer.down(downLocation), downLocation);
tester.dispatchEvent(pointer.move(upLocation), downLocation);
tester.dispatchEvent(pointer.up(), downLocation);
}
void dismissItem(WidgetTester tester, int item, { DismissDirection gestureDirection }) {
assert(gestureDirection != DismissDirection.horizontal);
assert(gestureDirection != DismissDirection.vertical);
Element itemElement = tester.findText(item.toString());
expect(itemElement, isNotNull);
dismissElement(tester, itemElement, gestureDirection: gestureDirection);
tester.pumpWidget(widgetBuilder()); // start the resize animation
tester.pumpWidget(widgetBuilder(), const Duration(seconds: 1)); // finish the resize animation
tester.pumpWidget(widgetBuilder(), const Duration(seconds: 1)); // dismiss
}
class Test1215DismissableComponent extends StatelessComponent {
Test1215DismissableComponent(this.text);
final String text;
Widget build(BuildContext context) {
return new Dismissable(
child: new AspectRatio(
aspectRatio: 1.0,
child: new Text(this.text)
)
);
}
}
void main() {
test('Horizontal drag triggers dismiss scrollDirection=vertical', () {
testWidgets((WidgetTester tester) {
scrollDirection = ScrollDirection.vertical;
dismissDirection = DismissDirection.horizontal;
dismissedItems = <int>[];
tester.pumpWidget(widgetBuilder());
expect(dismissedItems, isEmpty);
dismissItem(tester, 0, gestureDirection: DismissDirection.right);
expect(tester.findText('0'), isNull);
expect(dismissedItems, equals([0]));
dismissItem(tester, 1, gestureDirection: DismissDirection.left);
expect(tester.findText('1'), isNull);
expect(dismissedItems, equals([0, 1]));
});
});
test('Vertical drag triggers dismiss scrollDirection=horizontal', () {
testWidgets((WidgetTester tester) {
scrollDirection = ScrollDirection.horizontal;
dismissDirection = DismissDirection.vertical;
dismissedItems = <int>[];
tester.pumpWidget(widgetBuilder());
expect(dismissedItems, isEmpty);
dismissItem(tester, 0, gestureDirection: DismissDirection.up);
expect(tester.findText('0'), isNull);
expect(dismissedItems, equals([0]));
dismissItem(tester, 1, gestureDirection: DismissDirection.down);
expect(tester.findText('1'), isNull);
expect(dismissedItems, equals([0, 1]));
});
});
test('drag-left with DismissDirection.left triggers dismiss', () {
testWidgets((WidgetTester tester) {
scrollDirection = ScrollDirection.vertical;
dismissDirection = DismissDirection.left;
dismissedItems = <int>[];
tester.pumpWidget(widgetBuilder());
expect(dismissedItems, isEmpty);
dismissItem(tester, 0, gestureDirection: DismissDirection.right);
expect(tester.findText('0'), isNotNull);
expect(dismissedItems, isEmpty);
dismissItem(tester, 0, gestureDirection: DismissDirection.left);
expect(tester.findText('0'), isNull);
expect(dismissedItems, equals([0]));
});
});
test('drag-right with DismissDirection.right triggers dismiss', () {
testWidgets((WidgetTester tester) {
scrollDirection = ScrollDirection.vertical;
dismissDirection = DismissDirection.right;
dismissedItems = <int>[];
tester.pumpWidget(widgetBuilder());
expect(dismissedItems, isEmpty);
dismissItem(tester, 0, gestureDirection: DismissDirection.left);
expect(tester.findText('0'), isNotNull);
expect(dismissedItems, isEmpty);
dismissItem(tester, 0, gestureDirection: DismissDirection.right);
expect(tester.findText('0'), isNull);
expect(dismissedItems, equals([0]));
});
});
test('drag-up with DismissDirection.up triggers dismiss', () {
testWidgets((WidgetTester tester) {
scrollDirection = ScrollDirection.horizontal;
dismissDirection = DismissDirection.up;
dismissedItems = <int>[];
tester.pumpWidget(widgetBuilder());
expect(dismissedItems, isEmpty);
dismissItem(tester, 0, gestureDirection: DismissDirection.down);
expect(tester.findText('0'), isNotNull);
expect(dismissedItems, isEmpty);
dismissItem(tester, 0, gestureDirection: DismissDirection.up);
expect(tester.findText('0'), isNull);
expect(dismissedItems, equals([0]));
});
});
test('drag-down with DismissDirection.down triggers dismiss', () {
testWidgets((WidgetTester tester) {
scrollDirection = ScrollDirection.horizontal;
dismissDirection = DismissDirection.down;
dismissedItems = <int>[];
tester.pumpWidget(widgetBuilder());
expect(dismissedItems, isEmpty);
dismissItem(tester, 0, gestureDirection: DismissDirection.up);
expect(tester.findText('0'), isNotNull);
expect(dismissedItems, isEmpty);
dismissItem(tester, 0, gestureDirection: DismissDirection.down);
expect(tester.findText('0'), isNull);
expect(dismissedItems, equals([0]));
});
});
// This is a regression test for
// https://github.com/domokit/sky_engine/issues/1068
test('Verify that drag-move events do not assert', () {
testWidgets((WidgetTester tester) {
scrollDirection = ScrollDirection.horizontal;
dismissDirection = DismissDirection.down;
dismissedItems = <int>[];
tester.pumpWidget(widgetBuilder());
Element itemElement = tester.findText('0');
TestPointer pointer = new TestPointer(5);
Point location = tester.getTopLeft(itemElement);
Offset offset = new Offset(0.0, 5.0);
tester.dispatchEvent(pointer.down(location), location);
tester.dispatchEvent(pointer.move(location + offset), location);
tester.pumpWidget(widgetBuilder());
tester.dispatchEvent(pointer.move(location + (offset * 2.0)), location);
tester.pumpWidget(widgetBuilder());
tester.dispatchEvent(pointer.move(location + (offset * 3.0)), location);
tester.pumpWidget(widgetBuilder());
tester.dispatchEvent(pointer.move(location + (offset * 4.0)), location);
tester.pumpWidget(widgetBuilder());
});
});
// This one is for
// https://github.com/flutter/engine/issues/1215
test('dismissing bottom then top (smoketest)', () {
testWidgets((WidgetTester tester) {
tester.pumpWidget(new Center(
child: new Container(
width: 100.0,
height: 1000.0,
child: new Column(<Widget>[
new Test1215DismissableComponent('1'),
new Test1215DismissableComponent('2')
])
)
));
expect(tester.findText('1'), isNotNull);
expect(tester.findText('2'), isNotNull);
dismissElement(tester, tester.findText('2'), gestureDirection: DismissDirection.right);
tester.pump(new Duration(seconds: 1));
expect(tester.findText('1'), isNotNull);
expect(tester.findText('2'), isNull);
dismissElement(tester, tester.findText('1'), gestureDirection: DismissDirection.right);
tester.pump(new Duration(seconds: 1));
expect(tester.findText('1'), isNull);
expect(tester.findText('2'), isNull);
});
});
}