diff --git a/MCTG/ConsoleApp/Program.cs b/MCTG/ConsoleApp/Program.cs
index ac9a1e9..2ee01cb 100644
--- a/MCTG/ConsoleApp/Program.cs
+++ b/MCTG/ConsoleApp/Program.cs
@@ -13,17 +13,13 @@ Console.WriteLine("Hello, World!\n\n");
 
 Stub stub = new Stub();
 
-List<Recipe> recipes = stub.LoadRecipes();
-List<RecipeCollection> recipeCollections = stub.LoadRecipeCollection();
-
-RecipeCollection? allRecipe = recipeCollections.Find(x => x.Description.Equals("All"));
-if (allRecipe == null)
-    throw new ArgumentException("Load AllRecipe in stub: can't find 'All'.");
-
-Manager manager = new Manager(allRecipe);
-
-Recipe? ret = SearcherRecipe.ResearchOn(allRecipe);
-Console.WriteLine(ret);
+List<User> users = stub.ConstrucList();
+RecipeCollection recipes = new RecipeCollection("all", stub.LoadRecipes().ToArray());
+
+Console.WriteLine(recipes);
+Console.WriteLine("\n---------------------------\n");
+
+recipes[]
 
 // press any key to quit
 Console.ReadKey();
diff --git a/MCTG/ConsoleApp/Stubs/Stub.cs b/MCTG/ConsoleApp/Stubs/Stub.cs
index f116321..8ec1b68 100644
--- a/MCTG/ConsoleApp/Stubs/Stub.cs
+++ b/MCTG/ConsoleApp/Stubs/Stub.cs
@@ -15,24 +15,24 @@ namespace ConsoleApp
             List<Recipe> stub = new List<Recipe>();
             stub.AddRange(new[]
             {
-                new Recipe(),
+                new Recipe(""),
                 new Recipe(
                     title: "Cookies"),
                 new Recipe(
-                    title: "Cookies", id: 23),
+                    title: "Cookies"),
                 new Recipe(
-                    title: "Cookies au chocolat", id: null),
+                    title: "Cookies au chocolat"),
                 new Recipe(
-                    title: "", id: null),
+                    title: ""),
                 new Recipe(
-                    title: "", id: 24),
+                    title: ""),
                 new Recipe(
-                    title: "Cookies", id: 24,
+                    title: "Cookies",
                     preparationSteps: new[]{
                         new PreparationStep(1)
                     }),
                 new Recipe(
-                    title: "Cookies", id: 26,
+                    title: "Cookies",
                     preparationSteps: new[]{
                         new PreparationStep(1),
                         new PreparationStep(2, "Faire cuire.")
diff --git a/MCTG/Tests/Model_UnitTests/RecipeCollection_UT.cs b/MCTG/Tests/Model_UnitTests/RecipeCollection_UT.cs
index 36008b1..b79b884 100644
--- a/MCTG/Tests/Model_UnitTests/RecipeCollection_UT.cs
+++ b/MCTG/Tests/Model_UnitTests/RecipeCollection_UT.cs
@@ -17,12 +17,14 @@ namespace Model_UnitTests
                 description: "test recipe",
                 recipes: new[]
                 {
-                    new Recipe(title: "Gateau à la crème", id: 1),
-                    new Recipe(title: "Gateau au chocolat", id: 2),
-                    new Recipe(title: "Gateau aux cerises", id: 3)
+                    new Recipe(title: "Gateau à la crème"),
+                    new Recipe(title: "Gateau au chocolat"),
+                    new Recipe(title: "Gateau aux cerises")
                 });
 
-            Assert.Equal(2, recipes.ResearchByName("chocolat").FirstOrDefault().Id);
+            Recipe? search_result = recipes.ResearchByName("chocolat").FirstOrDefault();
+            Assert.NotNull(search_result);
+            Assert.Equal("Gateau au chocolat", search_result.Title);
         }
     }
 }
diff --git a/MCTG/Tests/Model_UnitTests/Recipe_UT.cs b/MCTG/Tests/Model_UnitTests/Recipe_UT.cs
index 9655041..4fdce86 100644
--- a/MCTG/Tests/Model_UnitTests/Recipe_UT.cs
+++ b/MCTG/Tests/Model_UnitTests/Recipe_UT.cs
@@ -7,22 +7,8 @@ namespace Model_UnitTests
         [Fact]
         public void TestVoidConstructor()
         {
-            Recipe r = new Recipe(id: 999); // id is given to avoid tests errors with the static atrribute 'idCreator'.
+            Recipe r = new Recipe(""); // id is given to avoid tests errors with the static atrribute 'idCreator'.
             Assert.NotNull(r.Title);
         }
-
-        [Theory]
-        [InlineData("Cookies", 23, "Cookies", 23)]
-        [InlineData("Cookies", 1, "Cookies", 1)]
-        [InlineData("No title.", 1, "", 1)]
-        public void TestConstructor(string expectedTitle, int expectedId, string title, int? id)
-        {
-            Recipe r = new Recipe(title, id);
-            Assert.NotNull(r.Title);
-            Assert.Equal(expectedId, r.Id);
-            Assert.Equal(expectedTitle, r.Title);
-        }
-
-
     }
 }