Add simple widget test for gym mode screen

test_data/exercises.dart

@@ -0,0 +1,57 @@
+/*
+ * This file is part of wger Workout Manager <https://github.com/wger-project>.
+ * Copyright (C) 2020, 2021 wger Team
+ *
+ * wger Workout Manager is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * wger Workout Manager is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import 'package:wger/models/exercises/category.dart';
+import 'package:wger/models/exercises/equipment.dart';
+import 'package:wger/models/exercises/exercise.dart';
+import 'package:wger/models/exercises/muscle.dart';
+
+const muscle1 = Muscle(id: 1, name: 'Flutterus maximus', isFront: true);
+const muscle2 = Muscle(id: 2, name: 'Biceps', isFront: true);
+
+const category1 = ExerciseCategory(id: 1, name: 'Arms');
+const category2 = ExerciseCategory(id: 2, name: 'Legs');
+const category3 = ExerciseCategory(id: 3, name: 'Abs');
+
+const equipment1 = Equipment(id: 1, name: 'Bench');
+const equipment2 = Equipment(id: 1, name: 'Dumbbell');
+
+final exercise1 = Exercise(
+  id: 1,
+  uuid: 'uuid',
+  creationDate: DateTime(2021, 1, 15),
+  name: 'test exercise 1',
+  description: 'add clever text',
+  categoryId: 1,
+  muscles: [muscle1, muscle2],
+  equipment: [equipment1, equipment2],
+  category: category1,
+);
+
+final exercise2 = Exercise(
+  id: 2,
+  uuid: '111-2222-44444',
+  creationDate: DateTime(2021, 1, 15),
+  name: 'test exercise 2',
+  description: 'Lorem ipsum etc',
+  categoryId: 2,
+  muscles: [muscle1],
+  musclesSecondary: [muscle2],
+  equipment: [equipment2],
+  category: category2,
+);