Updated NUnit testing tutorials

docs/core/porting/porting-approaches.md

@@ -80,7 +80,7 @@ The best way to make sure everything works when you've ported your code is to te
   - [Getting Started](https://xunit.net/docs/getting-started/netcore/cmdline)
   - [Tool to convert an MSTest project to xUnit](https://github.com/dotnet/codeformatter/tree/main/src/XUnitConverter)
 - [NUnit](https://nunit.org/)
-  - [Getting Started](https://github.com/nunit/docs/wiki/Installation)
+  - [Getting Started](https://docs.nunit.org/articles/nunit/getting-started/installation)
   - [Blog post about migrating from MSTest to NUnit](https://www.florian-rappl.de/News/Page/275/convert-mstest-to-nunit)
 - [MSTest](/visualstudio/test/unit-test-basics)
 

docs/core/testing/order-unit-tests.md

@@ -71,7 +71,7 @@ Then in a test class you set the test case order with the `TestCaseOrdererAttrib
 
 ## Order by priority
 
-To order tests explicitly, NUnit provides an [`OrderAttribute`](https://github.com/nunit/docs/wiki/Order-Attribute). Tests with this attribute are started before tests without. The order value is used to determine the order to run the unit tests.
+To order tests explicitly, NUnit provides an [`OrderAttribute`](https://docs.nunit.org/articles/nunit/writing-tests/attributes/order). Tests with this attribute are started before tests without. The order value is used to determine the order to run the unit tests.
 
 :::code language="csharp" source="snippets/order-unit-tests/csharp/NUnit.TestProject/ByOrder.cs":::
 

docs/core/testing/snippets/order-unit-tests/csharp/MSTest.Project/MSTest.Project.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <IsPackable>false</IsPackable>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>

docs/core/testing/snippets/order-unit-tests/csharp/XUnit.TestProject/XUnit.Project.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <IsPackable>false</IsPackable>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>

docs/core/testing/snippets/unit-testing-using-mstest/csharp/PrimeService.Tests/PrimeService.Tests.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>

docs/core/testing/snippets/unit-testing-using-mstest/csharp/PrimeService/PrimeService.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>

docs/core/testing/unit-testing-fsharp-with-nunit.md

@@ -14,7 +14,7 @@ This tutorial takes you through an interactive experience building a sample solu
 
 ## Prerequisites
 
-- [.NET Core 2.1 SDK](https://dotnet.microsoft.com/download) or later versions.
+- [.NET 8 SDK](https://dotnet.microsoft.com/download) or later versions.
 - A text editor or code editor of your choice.
 
 ## Creating the source project
@@ -76,9 +76,9 @@ This creates a test project that uses NUnit as the test framework. The generated
 
 ```xml
 <ItemGroup>
-  <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.5.0" />
-  <PackageReference Include="NUnit" Version="3.9.0" />
-  <PackageReference Include="NUnit3TestAdapter" Version="3.9.0" />
+  <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
+  <PackageReference Include="NUnit" Version="4.1.0" />
+  <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
 </ItemGroup>
 ```
 
@@ -125,10 +125,10 @@ type TestClass () =
 
     [<Test>]
     member this.TestMethodPassing() =
-        Assert.True(true)
+        Assert.That(true, Is.True)
 
     [<Test>]
-     member this.FailEveryTime() = Assert.True(false)
+     member this.FailEveryTime() = Assert.That(false, Is.True)
 ```
 
 The `[<TestFixture>]` attribute denotes a class that contains tests. The `[<Test>]` attribute denotes a test method that is run by the test runner. From the *unit-testing-with-fsharp* directory, execute `dotnet test` to build the tests and the class library and then run the tests. The NUnit test runner contains the program entry point to run your tests. `dotnet test` starts the test runner using the unit test project you've created.

docs/core/testing/unit-testing-visual-basic-with-nunit.md

@@ -2,7 +2,7 @@
 title: Unit testing Visual Basic in .NET Core with dotnet test and NUnit
 description: Learn unit test concepts in .NET Core through an interactive experience building a sample Visual Basic solution step-by-step using NUnit.
 author: rprouse
-ms.date: 10/04/2018
+ms.date: 03/27/2024
 ---
 # Unit testing Visual Basic .NET Core libraries using dotnet test and NUnit
 
@@ -12,7 +12,7 @@ This tutorial takes you through an interactive experience building a sample solu
 
 ## Prerequisites
 
-- [.NET Core 2.1 SDK](https://dotnet.microsoft.com/download) or later versions.
+- [.NET 8 SDK](https://dotnet.microsoft.com/download) or later versions.
 - A text editor or code editor of your choice.
 
 ## Creating the source project
@@ -78,6 +78,9 @@ The [dotnet new](../tools/dotnet-new.md) command creates a test project that use
 
 [!code-xml[Packages](~/samples/snippets/core/testing/unit-testing-vb-nunit/vb/PrimeService.Tests/PrimeService.Tests.vbproj#Packages)]
 
+> [!NOTE]
+> Prior to .NET 9, the generated code may reference older versions of the NUnit test framework. You may use [dotnet CLI](/nuget/consume-packages/install-use-packages-dotnet-cli) to update the packages. Alternatively, open the *PrimeService.Tests.vbproj* file and replace the contents of the package references item group with the code above.
+
 The test project requires other packages to create and run unit tests. `dotnet new` in the previous step added NUnit and the NUnit test adapter. Now, add the `PrimeService` class library as another dependency to the project. Use the [`dotnet add reference`](../tools/dotnet-add-reference.md) command:
 
 ```dotnetcli
@@ -121,7 +124,7 @@ Namespace PrimeService.Tests
         Sub IsPrime_InputIs1_ReturnFalse()
             Dim result As Boolean = _primeService.IsPrime(1)
 
-            Assert.False(result, "1 should not be prime")
+            Assert.That(result, [Is].False, $"1 should not be prime")
         End Sub
 
     End Class

docs/core/testing/unit-testing-with-nunit.md

@@ -2,7 +2,7 @@
 title: Unit testing C# with NUnit and .NET Core
 description: Learn unit test concepts in C# and .NET Core through an interactive experience building a sample solution step-by-step using dotnet test and NUnit.
 author: rprouse
-ms.date: 07/26/2022
+ms.date: 03/27/2024
 ms.custom: devdivchpfy22
 ---
 # Unit testing C# with NUnit and .NET Core
@@ -13,7 +13,7 @@ This tutorial takes you through an interactive experience building a sample solu
 
 ## Prerequisites
 
-- [.NET 6.0](https://dotnet.microsoft.com/download) or later versions.
+- [.NET 8.0](https://dotnet.microsoft.com/download) or later versions.
 - A text editor or code editor of your choice.
 
 ## Creating the source project
@@ -84,6 +84,9 @@ The [dotnet new](../tools/dotnet-new.md) command creates a test project that use
 
 [!code-xml[Packages](~/samples/snippets/core/testing/unit-testing-using-nunit/csharp/PrimeService.Tests/PrimeService.Tests.csproj#Packages)]
 
+> [!NOTE]
+> Prior to .NET 9, the generated code may reference older versions of the NUnit test framework. You may use [dotnet CLI](/nuget/consume-packages/install-use-packages-dotnet-cli) to update the packages. Alternatively, open the *PrimeService.Tests.csproj* file and replace the contents of the package references item group with the code above.
+
 The test project requires other packages to create and run unit tests. The `dotnet new` command in the previous step added the Microsoft test SDK, the NUnit test framework, and the NUnit test adapter. Now, add the `PrimeService` class library as another dependency to the project. Use the [`dotnet add reference`](../tools/dotnet-add-reference.md) command:
 
 ```dotnetcli
@@ -137,7 +140,7 @@ namespace Prime.UnitTests.Services
         {
             var result = _primeService.IsPrime(1);
 
-            Assert.IsFalse(result, "1 should not be prime");
+            Assert.That(result, Is.False, "1 should not be prime");
         }
     }
 }

samples/snippets/core/testing/unit-testing-best-practices/csharp/after/unit-testing-best-practices-after.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <Nullable>enable</Nullable>
 
     <IsPackable>false</IsPackable>

samples/snippets/core/testing/unit-testing-best-practices/csharp/before/unit-testing-best-practices-before.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <Nullable>enable</Nullable>
 
     <IsPackable>false</IsPackable>

samples/snippets/core/testing/unit-testing-best-practices/csharp/unit-testing-best-practices/unit-testing-best-practices.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 

samples/snippets/core/testing/unit-testing-using-dotnet-test/csharp/PrimeService.Tests/PrimeService.Tests.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <Nullable>enable</Nullable>
     <IsPackable>false</IsPackable>
   </PropertyGroup>

samples/snippets/core/testing/unit-testing-vb-mstest/vb/PrimeService.Tests/PrimeService.Tests.vbproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
 
     <IsPackable>false</IsPackable>
   </PropertyGroup>

samples/snippets/core/testing/unit-testing-vb-nunit/vb/PrimeService.Tests/PrimeService.Tests.vbproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
 
     <IsPackable>false</IsPackable>
   </PropertyGroup>