fix test

lib/models/nutrition/nutritional_goals.dart

@@ -139,4 +139,21 @@ class NutritionalGoals {
   //ignore: avoid_equals_and_hash_code_on_mutable_classes
   int get hashCode => Object.hash(
       energy, protein, carbohydrates, carbohydratesSugar, fat, fatSaturated, fibres, sodium);
+
+  @override
+  // ignore: avoid_equals_and_hash_code_on_mutable_classes
+  bool operator ==(Object other) {
+    if (identical(this, other)) {
+      return true;
+    }
+    return other is NutritionalGoals &&
+        other.energy == energy &&
+        other.protein == protein &&
+        other.carbohydrates == carbohydrates &&
+        other.carbohydratesSugar == carbohydratesSugar &&
+        other.fat == fat &&
+        other.fatSaturated == fatSaturated &&
+        other.fibres == fibres &&
+        other.sodium == sodium;
+  }
 }

test/nutrition/nutritional_plan_model_test.dart

@@ -32,8 +32,17 @@ void main() {
 
   group('model tests', () {
     test('Test the nutritionalValues method for nutritional plans', () {
-      final values = NutritionalValues.values(4118.75, 32.75, 347.5, 9.5, 59.0, 37.75, 52.5, 30.5);
-      expect(plan.nutritionalGoals, values);
+      expect(
+          plan.nutritionalGoals,
+          NutritionalGoals(
+              energy: 4118.75,
+              protein: 32.75,
+              carbohydrates: 347.5,
+              carbohydratesSugar: 9.5,
+              fat: 59.0,
+              fatSaturated: 37.75,
+              fibres: 52.5,
+              sodium: 30.5));
     });
 
     test('Test the nutritionalValues method for meals', () {