// 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/gestures.dart'; import 'package:flutter_test/flutter_test.dart'; void main() { testWidgets('debugPrintGestureArenaDiagnostics', (WidgetTester tester) async { PointerEvent event; debugPrintGestureArenaDiagnostics = true; final DebugPrintCallback oldCallback = debugPrint; final List<String> log = <String>[]; debugPrint = (String? s, { int? wrapWidth }) { log.add(s ?? ''); }; final TapGestureRecognizer tap = TapGestureRecognizer() ..onTapDown = (TapDownDetails details) { } ..onTapUp = (TapUpDetails details) { } ..onTap = () { } ..onTapCancel = () { }; expect(log, isEmpty); event = const PointerDownEvent(pointer: 1, position: Offset(10.0, 10.0)); tap.addPointer(event as PointerDownEvent); expect(log, hasLength(2)); expect(log[0], equalsIgnoringHashCodes('Gesture arena 1 ❙ ★ Opening new gesture arena.')); expect(log[1], equalsIgnoringHashCodes('Gesture arena 1 ❙ Adding: TapGestureRecognizer#00000(state: ready, button: 1)')); log.clear(); GestureBinding.instance.gestureArena.close(1); expect(log, hasLength(1)); expect(log[0], equalsIgnoringHashCodes('Gesture arena 1 ❙ Closing with 1 member.')); log.clear(); GestureBinding.instance.pointerRouter.route(event); expect(log, isEmpty); event = const PointerUpEvent(pointer: 1, position: Offset(12.0, 8.0)); GestureBinding.instance.pointerRouter.route(event); expect(log, isEmpty); GestureBinding.instance.gestureArena.sweep(1); expect(log, hasLength(2)); expect(log[0], equalsIgnoringHashCodes('Gesture arena 1 ❙ Sweeping with 1 member.')); expect(log[1], equalsIgnoringHashCodes('Gesture arena 1 ❙ Winner: TapGestureRecognizer#00000(state: ready, finalPosition: Offset(12.0, 8.0), button: 1)')); log.clear(); tap.dispose(); expect(log, isEmpty); debugPrintGestureArenaDiagnostics = false; debugPrint = oldCallback; }); testWidgets('debugPrintRecognizerCallbacksTrace', (WidgetTester tester) async { PointerEvent event; debugPrintRecognizerCallbacksTrace = true; final DebugPrintCallback oldCallback = debugPrint; final List<String> log = <String>[]; debugPrint = (String? s, { int? wrapWidth }) { log.add(s ?? ''); }; final TapGestureRecognizer tap = TapGestureRecognizer() ..onTapDown = (TapDownDetails details) { } ..onTapUp = (TapUpDetails details) { } ..onTap = () { } ..onTapCancel = () { }; expect(log, isEmpty); event = const PointerDownEvent(pointer: 1, position: Offset(10.0, 10.0)); tap.addPointer(event as PointerDownEvent); expect(log, isEmpty); GestureBinding.instance.gestureArena.close(1); expect(log, isEmpty); GestureBinding.instance.pointerRouter.route(event); expect(log, isEmpty); event = const PointerUpEvent(pointer: 1, position: Offset(12.0, 8.0)); GestureBinding.instance.pointerRouter.route(event); expect(log, isEmpty); GestureBinding.instance.gestureArena.sweep(1); expect(log, hasLength(3)); expect(log[0], equalsIgnoringHashCodes('TapGestureRecognizer#00000(state: ready, finalPosition: Offset(12.0, 8.0), button: 1) calling onTapDown callback.')); expect(log[1], equalsIgnoringHashCodes('TapGestureRecognizer#00000(state: ready, won arena, finalPosition: Offset(12.0, 8.0), button: 1, sent tap down) calling onTapUp callback.')); expect(log[2], equalsIgnoringHashCodes('TapGestureRecognizer#00000(state: ready, won arena, finalPosition: Offset(12.0, 8.0), button: 1, sent tap down) calling onTap callback.')); log.clear(); tap.dispose(); expect(log, isEmpty); debugPrintRecognizerCallbacksTrace = false; debugPrint = oldCallback; }); testWidgets('debugPrintGestureArenaDiagnostics and debugPrintRecognizerCallbacksTrace', (WidgetTester tester) async { PointerEvent event; debugPrintGestureArenaDiagnostics = true; debugPrintRecognizerCallbacksTrace = true; final DebugPrintCallback oldCallback = debugPrint; final List<String> log = <String>[]; debugPrint = (String? s, { int? wrapWidth }) { log.add(s ?? ''); }; final TapGestureRecognizer tap = TapGestureRecognizer() ..onTapDown = (TapDownDetails details) { } ..onTapUp = (TapUpDetails details) { } ..onTap = () { } ..onTapCancel = () { }; expect(log, isEmpty); event = const PointerDownEvent(pointer: 1, position: Offset(10.0, 10.0)); tap.addPointer(event as PointerDownEvent); expect(log, hasLength(2)); expect(log[0], equalsIgnoringHashCodes('Gesture arena 1 ❙ ★ Opening new gesture arena.')); expect(log[1], equalsIgnoringHashCodes('Gesture arena 1 ❙ Adding: TapGestureRecognizer#00000(state: ready, button: 1)')); log.clear(); GestureBinding.instance.gestureArena.close(1); expect(log, hasLength(1)); expect(log[0], equalsIgnoringHashCodes('Gesture arena 1 ❙ Closing with 1 member.')); log.clear(); GestureBinding.instance.pointerRouter.route(event); expect(log, isEmpty); event = const PointerUpEvent(pointer: 1, position: Offset(12.0, 8.0)); GestureBinding.instance.pointerRouter.route(event); expect(log, isEmpty); GestureBinding.instance.gestureArena.sweep(1); expect(log, hasLength(5)); expect(log[0], equalsIgnoringHashCodes('Gesture arena 1 ❙ Sweeping with 1 member.')); expect(log[1], equalsIgnoringHashCodes('Gesture arena 1 ❙ Winner: TapGestureRecognizer#00000(state: ready, finalPosition: Offset(12.0, 8.0), button: 1)')); expect(log[2], equalsIgnoringHashCodes(' ❙ TapGestureRecognizer#00000(state: ready, finalPosition: Offset(12.0, 8.0), button: 1) calling onTapDown callback.')); expect(log[3], equalsIgnoringHashCodes(' ❙ TapGestureRecognizer#00000(state: ready, won arena, finalPosition: Offset(12.0, 8.0), button: 1, sent tap down) calling onTapUp callback.')); expect(log[4], equalsIgnoringHashCodes(' ❙ TapGestureRecognizer#00000(state: ready, won arena, finalPosition: Offset(12.0, 8.0), button: 1, sent tap down) calling onTap callback.')); log.clear(); tap.dispose(); expect(log, isEmpty); debugPrintGestureArenaDiagnostics = false; debugPrintRecognizerCallbacksTrace = false; debugPrint = oldCallback; }); test('TapGestureRecognizer _sentTapDown toString', () { final TapGestureRecognizer tap = TapGestureRecognizer() ..onTap = () {}; // Add a callback so that event can be added expect(tap.toString(), equalsIgnoringHashCodes('TapGestureRecognizer#00000(state: ready)')); const PointerDownEvent event = PointerDownEvent(pointer: 1, position: Offset(10.0, 10.0)); tap.addPointer(event); tap.didExceedDeadline(); expect(tap.toString(), equalsIgnoringHashCodes('TapGestureRecognizer#00000(state: possible, button: 1, sent tap down)')); GestureBinding.instance.gestureArena.close(1); tap.dispose(); }); }