diff --git a/Verax_API_EF/Verax_API_EF/TestsUnitaires/Properties/AssemblyInfo.cs b/Verax_API_EF/Verax_API_EF/TestsUnitaires/Properties/AssemblyInfo.cs
deleted file mode 100644
index c3f33a7..0000000
--- a/Verax_API_EF/Verax_API_EF/TestsUnitaires/Properties/AssemblyInfo.cs
+++ /dev/null
@@ -1,35 +0,0 @@
-using System.Reflection;
-using System.Runtime.InteropServices;
-
-// General Information about an assembly is controlled through the following 
-// set of attributes. Change these attribute values to modify the information
-// associated with an assembly.
-[assembly: AssemblyTitle("TestsUnitaires")]
-[assembly: AssemblyDescription("")]
-[assembly: AssemblyConfiguration("")]
-[assembly: AssemblyCompany("")]
-[assembly: AssemblyProduct("TestsUnitaires")]
-[assembly: AssemblyCopyright("Copyright ©  2024")]
-[assembly: AssemblyTrademark("")]
-[assembly: AssemblyCulture("")]
-
-// Setting ComVisible to false makes the types in this assembly not visible 
-// to COM components.  If you need to access a type in this assembly from 
-// COM, set the ComVisible attribute to true on that type.
-[assembly: ComVisible(false)]
-
-// The following GUID is for the ID of the typelib if this project is exposed to COM
-[assembly: Guid("FF8AFA55-12FE-4856-A0A1-21344D366E12")]
-
-// Version information for an assembly consists of the following four values:
-//
-//      Major Version
-//      Minor Version 
-//      Build Number
-//      Revision
-//
-// You can specify all the values or you can default the Build and Revision Numbers 
-// by using the '*' as shown below:
-// [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.0.0.0")]
-[assembly: AssemblyFileVersion("1.0.0.0")]
\ No newline at end of file
diff --git a/Verax_API_EF/Verax_API_EF/TestsUnitaires/Tests.cs b/Verax_API_EF/Verax_API_EF/TestsUnitaires/Tests.cs
deleted file mode 100644
index f0b4fcb..0000000
--- a/Verax_API_EF/Verax_API_EF/TestsUnitaires/Tests.cs
+++ /dev/null
@@ -1,14 +0,0 @@
-using System;
-using Xunit;
-
-namespace TestsUnitaires
-{
-    public class Tests
-    {
-        [Fact]
-        public void Test1()
-        {
-            Assert.True(true);
-        }
-    }
-}
\ No newline at end of file
diff --git a/Verax_API_EF/Verax_API_EF/TestsUnitaires/TestsArticleEntity.cs b/Verax_API_EF/Verax_API_EF/TestsUnitaires/TestsArticleEntity.cs
new file mode 100644
index 0000000..fce41a3
--- /dev/null
+++ b/Verax_API_EF/Verax_API_EF/TestsUnitaires/TestsArticleEntity.cs
@@ -0,0 +1,103 @@
+using DbContextLib;
+using Entities;
+using Microsoft.Data.Sqlite;
+using Microsoft.EntityFrameworkCore;
+using Xunit;
+
+namespace Tests;
+
+public class ArticleDB_Tests
+{
+    [Fact]
+    public void Add_Test()
+    {
+        var connection = new SqliteConnection("DataSource=:memory:");
+        connection.Open();
+
+        var options = new DbContextOptionsBuilder<LibraryContext>()
+            .UseSqlite(connection)
+            .Options;
+
+        using (var context = new LibraryContext(options))
+        {
+            context.Database.EnsureCreated();
+            ArticleEntity a1 = new ArticleEntity { Id = 1, Title = "Breaking News Elisabeth 2 Died", Description = "The queen of England died today at the age of 95", DatePublished = "2022-02-06", LectureTime = 2, Author = "Tom Smith" };
+            ArticleEntity a2 = new ArticleEntity { Id = 2, Title = "The new iPhone 15", Description = "The new iPhone 15 is out and it's the best phone ever", DatePublished = "2022-02-06", LectureTime = 3, Author = "Tom Smith" };
+            ArticleEntity a3 = new ArticleEntity { Id = 3, Title = "M&M's new recipe", Description = "M&M's new recipe is out and it's the best chocolate ever", DatePublished = "2022-02-06", LectureTime = 1, Author = "M&M's Red" };
+
+            context.Add(a1);
+            context.Add(a2);
+            context.Add(a3);
+
+            context.SaveChanges();
+
+            Assert.Equal(3, context.ArticleSet.Count());
+            Assert.Equal("Tom Smith", context.ArticleSet.First().Author);
+            connection.Close();
+        }
+    }
+
+    [Fact]
+    public void Modify_Test()
+    {
+        var connection = new SqliteConnection("DataSource=:memory:");
+        connection.Open();
+
+        var options = new DbContextOptionsBuilder<LibraryContext>()
+            .UseSqlite(connection)
+            .Options;
+        using (var context = new LibraryContext(options))
+        {
+            context.Database.EnsureCreated();
+            ArticleEntity a1 = new ArticleEntity { Id = 1, Title = "Breaking News Elisabeth 2 Died", Description = "The queen of England died today at the age of 95", DatePublished = "2022-02-06", LectureTime = 2, Author = "Tom Smith" };
+            ArticleEntity a2 = new ArticleEntity { Id = 2, Title = "The new iPhone 15", Description = "The new iPhone 15 is out and it's the best phone ever", DatePublished = "2022-02-06", LectureTime = 3, Author = "Tom Smith" };
+            ArticleEntity a3 = new ArticleEntity { Id = 3, Title = "M&M's new recipe", Description = "M&M's new recipe is out and it's the best chocolate ever", DatePublished = "2022-02-06", LectureTime = 1, Author = "M&M's Red" };
+            context.Add(a1);
+            context.Add(a2);
+            context.Add(a3);
+
+            context.SaveChanges();
+
+            var article = context.ArticleSet.First(a => a.Title.Equals("Breaking News Elisabeth 2 Died"));
+            article.Author = "Louis Laborie";
+            context.SaveChanges();
+            string persRemove = "Tom Smith";
+            string persNew = "Louis Laborie";
+            Assert.Equal(1, context.ArticleSet.Count(a => a.Author.Equals(persRemove)));
+            Assert.Equal(1, context.ArticleSet.Count(a => a.Author.Equals(persNew)));
+            connection.Close();
+        }
+    }
+
+    [Fact]
+    public void Remove_Test()
+    {
+        var connection = new SqliteConnection("DataSource=:memory:");
+        connection.Open();
+
+        var options = new DbContextOptionsBuilder<LibraryContext>()
+            .UseSqlite(connection)
+            .Options;
+        using (var context = new LibraryContext(options))
+        {
+            context.Database.EnsureCreated();
+            ArticleEntity a1 = new ArticleEntity { Id = 1, Title = "Breaking News Elisabeth 2 Died", Description = "The queen of England died today at the age of 95", DatePublished = "2022-02-06", LectureTime = 2, Author = "Tom Smith" };
+            ArticleEntity a2 = new ArticleEntity { Id = 2, Title = "The new iPhone 15", Description = "The new iPhone 15 is out and it's the best phone ever", DatePublished = "2022-02-06", LectureTime = 3, Author = "Tom Smith" };
+            ArticleEntity a3 = new ArticleEntity { Id = 3, Title = "M&M's new recipe", Description = "M&M's new recipe is out and it's the best chocolate ever", DatePublished = "2022-02-06", LectureTime = 1, Author = "M&M's Red" };
+
+            context.Add(a1);
+            context.Add(a2);
+            context.Add(a3);
+
+            context.SaveChanges();
+
+            var article = context.ArticleSet.First(a => a.Title.Equals("Breaking News Elisabeth 2 Died"));
+            context.Remove(article);
+            context.SaveChanges();
+            Assert.Equal(2, context.ArticleSet.Count());
+            Assert.Equal(0, context.ArticleSet.Count(a => a.Title.Equals("Breaking News Elisabeth 2 Died")));
+            connection.Close();
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/Verax_API_EF/Verax_API_EF/TestsUnitaires/TestsUnitaires.csproj b/Verax_API_EF/Verax_API_EF/TestsUnitaires/TestsUnitaires.csproj
index 6242cf4..d068dfd 100644
--- a/Verax_API_EF/Verax_API_EF/TestsUnitaires/TestsUnitaires.csproj
+++ b/Verax_API_EF/Verax_API_EF/TestsUnitaires/TestsUnitaires.csproj
@@ -1,66 +1,34 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-    <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props"
-            Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')"/>
-    <PropertyGroup>
-        <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
-        <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
-        <ProjectGuid>{FF8AFA55-12FE-4856-A0A1-21344D366E12}</ProjectGuid>
-        <ProjectTypeGuids>{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
-        <OutputType>Library</OutputType>
-        <AppDesignerFolder>Properties</AppDesignerFolder>
-        <RootNamespace>TestsUnitaires</RootNamespace>
-        <AssemblyName>TestsUnitaires</AssemblyName>
-        <TargetFrameworkVersion>v4.8</TargetFrameworkVersion>
-        <FileAlignment>512</FileAlignment>
-    </PropertyGroup>
-    <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
-        <PlatformTarget>AnyCPU</PlatformTarget>
-        <DebugSymbols>true</DebugSymbols>
-        <DebugType>full</DebugType>
-        <Optimize>false</Optimize>
-        <OutputPath>bin\Debug\</OutputPath>
-        <DefineConstants>DEBUG;TRACE</DefineConstants>
-        <ErrorReport>prompt</ErrorReport>
-        <WarningLevel>4</WarningLevel>
-    </PropertyGroup>
-    <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
-        <PlatformTarget>AnyCPU</PlatformTarget>
-        <DebugType>pdbonly</DebugType>
-        <Optimize>true</Optimize>
-        <OutputPath>bin\Release\</OutputPath>
-        <DefineConstants>TRACE</DefineConstants>
-        <ErrorReport>prompt</ErrorReport>
-        <WarningLevel>4</WarningLevel>
-    </PropertyGroup>
-    <ItemGroup>
-        <Reference Include="System"/>
-        <Reference Include="System.Core"/>
-        <Reference Include="System.Data"/>
-        <Reference Include="System.Xml"/>
-        <Reference Include="xunit.abstractions, Version=2.0.0.0, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c">
-            <HintPath>..\packages\xunit.abstractions.2.0.0\lib\net35\xunit.abstractions.dll</HintPath>
-        </Reference>
-        <Reference Include="xunit.assert, Version=2.1.0.3179, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c">
-            <HintPath>..\packages\xunit.assert.2.1.0\lib\dotnet\xunit.assert.dll</HintPath>
-        </Reference>
-        <Reference Include="xunit.core, Version=2.1.0.3179, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c">
-            <HintPath>..\packages\xunit.extensibility.core.2.1.0\lib\dotnet\xunit.core.dll</HintPath>
-        </Reference>
-        <Reference Include="xunit.execution.desktop, Version=2.1.0.3179, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c">
-            <HintPath>..\packages\xunit.extensibility.execution.2.1.0\lib\net45\xunit.execution.desktop.dll</HintPath>
-        </Reference>
-    </ItemGroup>
-    <ItemGroup>
-        <Compile Include="Tests.cs"/>
-        <Compile Include="Properties\AssemblyInfo.cs"/>
-    </ItemGroup>
-    <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets"/>
-    <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
-         Other similar extension points exist, see Microsoft.Common.targets.
-    <Target Name="BeforeBuild">
-    </Target>
-    <Target Name="AfterBuild">
-    </Target>
-    -->
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+
+    <IsPackable>false</IsPackable>
+    <IsTestProject>true</IsTestProject>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="coverlet.collector" Version="6.0.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="8.0.2" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="8.0.2" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="8.0.2" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
+    <PackageReference Include="xunit" Version="2.7.0" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.5.7">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\DbContextLib\DbContextLib.csproj" />
+    <ProjectReference Include="..\Entities\Entities.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Using Include="Xunit" />
+  </ItemGroup>
+
 </Project>
diff --git a/Verax_API_EF/Verax_API_EF/TestsUnitaires/packages.config b/Verax_API_EF/Verax_API_EF/TestsUnitaires/packages.config
deleted file mode 100644
index 69a4ec4..0000000
--- a/Verax_API_EF/Verax_API_EF/TestsUnitaires/packages.config
+++ /dev/null
@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<packages>
-  <package id="xunit" version="2.1.0" targetFramework="net45" />
-  <package id="xunit.abstractions" version="2.0.0" targetFramework="net45" />
-  <package id="xunit.assert" version="2.1.0" targetFramework="net45" />
-  <package id="xunit.core" version="2.1.0" targetFramework="net45" />
-  <package id="xunit.extensibility.core" version="2.1.0" targetFramework="net45" />
-  <package id="xunit.extensibility.execution" version="2.1.0" targetFramework="net45" />
-</packages>
\ No newline at end of file
diff --git a/Verax_API_EF/Verax_API_EF/Verax_API_EF.sln b/Verax_API_EF/Verax_API_EF/Verax_API_EF.sln
index 2b1c5b3..6fdbffa 100644
--- a/Verax_API_EF/Verax_API_EF/Verax_API_EF.sln
+++ b/Verax_API_EF/Verax_API_EF/Verax_API_EF.sln
@@ -1,24 +1,29 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Test_Console_EF", "Test_Console_EF\Test_Console_EF.csproj", "{E27E2617-28A1-4675-B12B-89430582C05E}"
+# Visual Studio Version 17
+VisualStudioVersion = 17.8.34525.116
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Test_Console_EF", "Test_Console_EF\Test_Console_EF.csproj", "{E27E2617-28A1-4675-B12B-89430582C05E}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Entities", "Entities\Entities.csproj", "{40BD34D7-3F07-410A-BC04-2A5B09E758C0}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Entities", "Entities\Entities.csproj", "{40BD34D7-3F07-410A-BC04-2A5B09E758C0}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DbContextLib", "DbContextLib\DbContextLib.csproj", "{F94BEE1F-302F-4654-8D85-AD41E0BACD03}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DbContextLib", "DbContextLib\DbContextLib.csproj", "{F94BEE1F-302F-4654-8D85-AD41E0BACD03}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "StubbedContextLib", "StubbedContextLib\StubbedContextLib.csproj", "{F1B4BCE5-8DE7-4EFB-8BC1-D7E04EA75302}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "StubbedContextLib", "StubbedContextLib\StubbedContextLib.csproj", "{F1B4BCE5-8DE7-4EFB-8BC1-D7E04EA75302}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "API_DbDataManager", "API_DbDataManager\API_DbDataManager.csproj", "{FBA0CF18-7488-4088-A7C5-5D2071D19CCB}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "API_DbDataManager", "API_DbDataManager\API_DbDataManager.csproj", "{FBA0CF18-7488-4088-A7C5-5D2071D19CCB}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "API_Services", "API_Services\API_Services.csproj", "{4FB7D286-B583-44BC-BB79-4AE3058AFEDE}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "API_Services", "API_Services\API_Services.csproj", "{4FB7D286-B583-44BC-BB79-4AE3058AFEDE}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "API_Model", "API_Model\API_Model.csproj", "{F09B566E-8D25-4D70-B9F0-99E6969D4D1F}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "API_Model", "API_Model\API_Model.csproj", "{F09B566E-8D25-4D70-B9F0-99E6969D4D1F}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "API_Mapping", "API_Mapping\API_Mapping.csproj", "{BECFAD2C-E442-4300-8121-5AE6610B92DF}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "API_Mapping", "API_Mapping\API_Mapping.csproj", "{BECFAD2C-E442-4300-8121-5AE6610B92DF}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Model", "Model\Model.csproj", "{96FDB5DE-6707-4856-94CD-EFAF0C7CEB4B}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Model", "Model\Model.csproj", "{96FDB5DE-6707-4856-94CD-EFAF0C7CEB4B}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "API", "API\API.csproj", "{6AACD337-70A0-429B-979C-1B1E004BF2E0}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "API", "API\API.csproj", "{6AACD337-70A0-429B-979C-1B1E004BF2E0}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TestsUnitaires", "TestsUnitaires\TestsUnitaires.csproj", "{C1982C7C-AE09-4E96-B1A9-B6ADE4097452}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -66,5 +71,12 @@ Global
 		{6AACD337-70A0-429B-979C-1B1E004BF2E0}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{6AACD337-70A0-429B-979C-1B1E004BF2E0}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{6AACD337-70A0-429B-979C-1B1E004BF2E0}.Release|Any CPU.Build.0 = Release|Any CPU
+		{C1982C7C-AE09-4E96-B1A9-B6ADE4097452}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C1982C7C-AE09-4E96-B1A9-B6ADE4097452}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C1982C7C-AE09-4E96-B1A9-B6ADE4097452}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C1982C7C-AE09-4E96-B1A9-B6ADE4097452}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
 	EndGlobalSection
 EndGlobal