diff --git a/EPAServeur.Tests/Services/NoteServiceTests.cs b/EPAServeur.Tests/Services/NoteServiceTests.cs
index 762f0a1..9aa7ea3 100644
--- a/EPAServeur.Tests/Services/NoteServiceTests.cs
+++ b/EPAServeur.Tests/Services/NoteServiceTests.cs
@@ -309,6 +309,63 @@ namespace EPAServeur.Tests.Services
 		#endregion
 
 		#region Tests GetNoteById
+		[TestCase(1)]
+		[TestCase(2)]
+		[TestCase(4)]
+		[TestCase(5)]
+		[TestCase(6)]
+		[TestCase(9)]
+		public async Task GetNote_NoteNotNull(long id)
+		{
+			INoteService noteService = new NoteService(collaborateurApi, collaborateurService, context);
+			DetailsNoteDTO detailsNoteDTO = await noteService.GetNoteByIdAsync(id);
+
+			Assert.NotNull(detailsNoteDTO);
+			Assert.NotNull(detailsNoteDTO.Titre);
+			Assert.NotNull(detailsNoteDTO.Texte);
+			Assert.NotNull(detailsNoteDTO.IdAuteur);
+			Assert.NotNull(detailsNoteDTO.Collaborateur);
+			Assert.NotNull(detailsNoteDTO.DateCreation);
+			Assert.NotNull(detailsNoteDTO.DateMiseAjour);
+			Assert.AreEqual(id, detailsNoteDTO.Id);
+
+		}
+
+
+		[TestCase(-999)]
+		[TestCase(-1)]
+		[TestCase(0)]
+		[TestCase(11)]
+		[TestCase(20)]
+		[TestCase(30)]
+		[TestCase(100)]
+		public void GetNote_NoteNotFoundException(long id)
+		{
+			INoteService noteService = new NoteService(collaborateurApi, collaborateurService, context);
+			AsyncTestDelegate exception = () => noteService.GetNoteByIdAsync(id);
+			Assert.ThrowsAsync(typeof(NoteNotFoundException), exception);
+		}
+
+		[TestCase(3)]
+		[TestCase(7)]
+		public void GetNote_ReferentNotFoundException(long id)
+		{
+			INoteService noteService = new NoteService(collaborateurApi, collaborateurService, context);
+			AsyncTestDelegate exception = () => noteService.GetNoteByIdAsync(id);
+			Assert.ThrowsAsync(typeof(ReferentNotFoundException), exception);
+		}
+
+		[TestCase(8)]
+		[TestCase(10)]
+		public void GetNote_CollaborateurNotFoundException(long id)
+		{
+			INoteService noteService = new NoteService(collaborateurApi, collaborateurService, context);
+			AsyncTestDelegate exception = () => noteService.GetNoteByIdAsync(id);
+			Assert.ThrowsAsync(typeof(CollaborateurNotFoundException), exception);
+		}
+
+
+
 		#endregion
 
 
diff --git a/EPAServeur/Context/DataSeeder.cs b/EPAServeur/Context/DataSeeder.cs
index e91a242..cda13b0 100644
--- a/EPAServeur/Context/DataSeeder.cs
+++ b/EPAServeur/Context/DataSeeder.cs
@@ -829,7 +829,7 @@ namespace EPAServeur.Context
                 Titre = "Titre1",
                 Texte = "Texte1",
                 IdAuteur = new Guid("ecf528c3-e509-402f-87bb-c8821467e350"),
-                IdCollaborateur = new Guid("779bf1cf-4d38-48fb-8550-3d583384523b"),
+                IdCollaborateur = new Guid("fc1d7593-83c3-44de-b3f5-53dbe53c0830"),
                 DateCreation = DateTime.Now,
                 DateMiseAJour = DateTime.Now
 
@@ -842,7 +842,7 @@ namespace EPAServeur.Context
                 Titre = "Titre2",
                 Texte = "Texte2",
                 IdAuteur = new Guid("ecf528c3-e509-402f-87bb-c8821467e350"),
-                IdCollaborateur = new Guid("779bf1cf-4d38-48fb-8550-3d583384523b"),
+                IdCollaborateur = new Guid("fc1d7593-83c3-44de-b3f5-53dbe53c0830"),
                 DateCreation = DateTime.Now,
                 DateMiseAJour = DateTime.Now
 
@@ -854,8 +854,8 @@ namespace EPAServeur.Context
                 IdNote = 3,
                 Titre = "Titre3",
                 Texte = "Texte3",
-                IdAuteur = new Guid("ecf528c3-e509-402f-87bb-c8821467e350"),
-                IdCollaborateur = new Guid("779bf1cf-4d38-48fb-8550-3d583384523b"),
+                IdAuteur = new Guid("073a4fb0-45c3-11eb-b378-0242ac130002"),
+                IdCollaborateur = new Guid("fc1d7593-83c3-44de-b3f5-53dbe53c0830"),
                 DateCreation = DateTime.Now,
                 DateMiseAJour = DateTime.Now
 
@@ -906,7 +906,7 @@ namespace EPAServeur.Context
                 IdNote = 7,
                 Titre = "Titre7",
                 Texte = "Texte7",
-                IdAuteur = new Guid("6aa62dcb-f7c9-4c0c-af40-e934a4d6a7eb"),
+                IdAuteur = new Guid("073a4fb0-45c3-11eb-b378-0242ac130002"),
                 IdCollaborateur = new Guid("006226f6-51b2-4a02-a302-7447f7fccc04"),
                 DateCreation = DateTime.Now,
                 DateMiseAJour = DateTime.Now
@@ -920,7 +920,7 @@ namespace EPAServeur.Context
                 Titre = "Titre8",
                 Texte = "Texte8",
                 IdAuteur = new Guid("571463f3-b286-4a21-9eab-0707dc506dec"),
-                IdCollaborateur = new Guid("006226f6-51b2-4a02-a302-7447f7fccc04"),
+                IdCollaborateur = new Guid("227e0e1a-45c3-11eb-b378-0242ac130002"),
                 DateCreation = DateTime.Now,
                 DateMiseAJour = DateTime.Now
 
@@ -946,7 +946,7 @@ namespace EPAServeur.Context
                 Titre = "Titre10",
                 Texte = "Texte10",
                 IdAuteur = new Guid("6aa62dcb-f7c9-4c0c-af40-e934a4d6a7eb"),
-                IdCollaborateur = new Guid("006226f6-51b2-4a02-a302-7447f7fccc04"),
+                IdCollaborateur = new Guid("694ffef2-45c3-11eb-b378-0242ac130002"),
                 DateCreation = DateTime.Now,
                 DateMiseAJour = DateTime.Now