From 85f3bb8ae9fecf8164b2cdea2e6c5ecae1e261d0 Mon Sep 17 00:00:00 2001
From: Lukas Klingsbo <me@lukas.fyi>
Date: Sat, 4 Jun 2022 14:54:43 +0200
Subject: [PATCH] Add ButtonComponentTest

---
 .../components/button_component_test.dart     | 112 ++++++++++++++++++
 1 file changed, 112 insertions(+)
 create mode 100644 packages/flame/test/components/button_component_test.dart

diff --git a/packages/flame/test/components/button_component_test.dart b/packages/flame/test/components/button_component_test.dart
new file mode 100644
index 00000000000..542c3f59999
--- /dev/null
+++ b/packages/flame/test/components/button_component_test.dart
@@ -0,0 +1,112 @@
+import 'package:flame/components.dart';
+import 'package:flame/extensions.dart';
+import 'package:flame/input.dart';
+import 'package:flame_test/flame_test.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+import '../game/flame_game_test.dart';
+
+void main() async {
+  group('ButtonComponent', () {
+    testWithGame<GameWithTappables>(
+        'correctly registers taps', GameWithTappables.new, (game) async {
+      var pressedTimes = 0;
+      var releasedTimes = 0;
+      final initialGameSize = Vector2.all(100);
+      final componentSize = Vector2.all(10);
+      final buttonPosition = Vector2.all(100);
+      late final ButtonComponent button;
+      game.onGameResize(initialGameSize);
+      await game.ensureAdd(
+        button = ButtonComponent(
+          button: RectangleComponent(size: componentSize),
+          onPressed: () => pressedTimes++,
+          onReleased: () => releasedTimes++,
+          position: buttonPosition,
+          size: componentSize,
+        ),
+      );
+
+      expect(pressedTimes, 0);
+      expect(releasedTimes, 0);
+
+      game.onTapDown(1, createTapDownEvent(game));
+      expect(pressedTimes, 0);
+      expect(releasedTimes, 0);
+
+      game.onTapUp(
+        1,
+        createTapUpEvent(
+          game,
+          globalPosition: button.positionOfAnchor(Anchor.center).toOffset(),
+        ),
+      );
+      expect(pressedTimes, 0);
+      expect(releasedTimes, 0);
+
+      game.onTapDown(
+        1,
+        createTapDownEvent(
+          game,
+          globalPosition: buttonPosition.toOffset(),
+        ),
+      );
+      expect(pressedTimes, 1);
+      expect(releasedTimes, 0);
+
+      game.onTapUp(
+        1,
+        createTapUpEvent(
+          game,
+          globalPosition: buttonPosition.toOffset(),
+        ),
+      );
+      expect(pressedTimes, 1);
+      expect(releasedTimes, 1);
+    });
+
+    testWithGame<GameWithTappables>(
+        'correctly registers taps onGameResize', GameWithTappables.new,
+        (game) async {
+      var pressedTimes = 0;
+      var releasedTimes = 0;
+      final initialGameSize = Vector2.all(100);
+      final componentSize = Vector2.all(10);
+      final buttonPosition = Vector2.all(100);
+      late final ButtonComponent button;
+      game.onGameResize(initialGameSize);
+      await game.ensureAdd(
+        button = ButtonComponent(
+          button: RectangleComponent(size: componentSize),
+          onPressed: () => pressedTimes++,
+          onReleased: () => releasedTimes++,
+          position: buttonPosition,
+          size: componentSize,
+        ),
+      );
+      final previousPosition =
+          button.positionOfAnchor(Anchor.center).toOffset();
+      game.onGameResize(initialGameSize * 2);
+
+      game.onTapDown(
+        1,
+        createTapDownEvent(
+          game,
+          globalPosition: previousPosition,
+        ),
+      );
+      expect(pressedTimes, 1);
+      expect(releasedTimes, 0);
+
+      game.onTapUp(
+        1,
+        createTapUpEvent(
+          game,
+          globalPosition: previousPosition,
+        ),
+      );
+      expect(pressedTimes, 1);
+      expect(releasedTimes, 1);
+    });
+  });
+}