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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.
// @dart = 2.8
import 'package:flutter/gestures.dart';
import '../flutter_test_alternative.dart';
typedef GestureArenaCallback = void Function(Object key);
const int primaryKey = 4;
class TestGestureArenaMember extends GestureArenaMember {
bool acceptRan = false;
@override
void acceptGesture(int key) {
expect(key, equals(primaryKey));
acceptRan = true;
}
bool rejectRan = false;
@override
void rejectGesture(int key) {
expect(key, equals(primaryKey));
rejectRan = true;
}
}
class GestureTester {
GestureArenaManager arena = GestureArenaManager();
TestGestureArenaMember first = TestGestureArenaMember();
TestGestureArenaMember second = TestGestureArenaMember();
GestureArenaEntry firstEntry;
void addFirst() {
firstEntry = arena.add(primaryKey, first);
}
GestureArenaEntry secondEntry;
void addSecond() {
secondEntry = arena.add(primaryKey, second);
}
void expectNothing() {
expect(first.acceptRan, isFalse);
expect(first.rejectRan, isFalse);
expect(second.acceptRan, isFalse);
expect(second.rejectRan, isFalse);
}
void expectFirstWin() {
expect(first.acceptRan, isTrue);
expect(first.rejectRan, isFalse);
expect(second.acceptRan, isFalse);
expect(second.rejectRan, isTrue);
}
void expectSecondWin() {
expect(first.acceptRan, isFalse);
expect(first.rejectRan, isTrue);
expect(second.acceptRan, isTrue);
expect(second.rejectRan, isFalse);
}
}
void main() {
test('Should win by accepting', () {
final GestureTester tester = GestureTester();
tester.addFirst();
tester.addSecond();
tester.arena.close(primaryKey);
tester.expectNothing();
tester.firstEntry.resolve(GestureDisposition.accepted);
tester.expectFirstWin();
});
test('Should win by sweep', () {
final GestureTester tester = GestureTester();
tester.addFirst();
tester.addSecond();
tester.arena.close(primaryKey);
tester.expectNothing();
tester.arena.sweep(primaryKey);
tester.expectFirstWin();
});
test('Should win on release after hold sweep release', () {
final GestureTester tester = GestureTester();
tester.addFirst();
tester.addSecond();
tester.arena.close(primaryKey);
tester.expectNothing();
tester.arena.hold(primaryKey);
tester.expectNothing();
tester.arena.sweep(primaryKey);
tester.expectNothing();
tester.arena.release(primaryKey);
tester.expectFirstWin();
});
test('Should win on sweep after hold release sweep', () {
final GestureTester tester = GestureTester();
tester.addFirst();
tester.addSecond();
tester.arena.close(primaryKey);
tester.expectNothing();
tester.arena.hold(primaryKey);
tester.expectNothing();
tester.arena.release(primaryKey);
tester.expectNothing();
tester.arena.sweep(primaryKey);
tester.expectFirstWin();
});
test('Only first winner should win', () {
final GestureTester tester = GestureTester();
tester.addFirst();
tester.addSecond();
tester.arena.close(primaryKey);
tester.expectNothing();
tester.firstEntry.resolve(GestureDisposition.accepted);
tester.secondEntry.resolve(GestureDisposition.accepted);
tester.expectFirstWin();
});
test('Only first winner should win, regardless of order', () {
final GestureTester tester = GestureTester();
tester.addFirst();
tester.addSecond();
tester.arena.close(primaryKey);
tester.expectNothing();
tester.secondEntry.resolve(GestureDisposition.accepted);
tester.firstEntry.resolve(GestureDisposition.accepted);
tester.expectSecondWin();
});
test('Win before close is delayed to close', () {
final GestureTester tester = GestureTester();
tester.addFirst();
tester.addSecond();
tester.expectNothing();
tester.firstEntry.resolve(GestureDisposition.accepted);
tester.expectNothing();
tester.arena.close(primaryKey);
tester.expectFirstWin();
});
test('Win before close is delayed to close, and only first winner should win', () {
final GestureTester tester = GestureTester();
tester.addFirst();
tester.addSecond();
tester.expectNothing();
tester.firstEntry.resolve(GestureDisposition.accepted);
tester.secondEntry.resolve(GestureDisposition.accepted);
tester.expectNothing();
tester.arena.close(primaryKey);
tester.expectFirstWin();
});
test('Win before close is delayed to close, and only first winner should win, regardless of order', () {
final GestureTester tester = GestureTester();
tester.addFirst();
tester.addSecond();
tester.expectNothing();
tester.secondEntry.resolve(GestureDisposition.accepted);
tester.firstEntry.resolve(GestureDisposition.accepted);
tester.expectNothing();
tester.arena.close(primaryKey);
tester.expectSecondWin();
});
}