docs: Show new LifeCycle attribute

Author: linkdotnet

docs/samples/tests/nunit/HelloWorldInstancePerTestCase.cs

@@ -0,0 +1,17 @@
+using NUnit.Framework;
+
+namespace Bunit.Docs.Samples;
+
+[FixtureLifeCycle(LifeCycle.InstancePerTestCase)]
+public class HelloWorldInstancePerTestCase : Bunit.TestContext
+{
+  [Test]
+  public void HelloWorldComponentRendersCorrectly()
+  {
+    // Act
+    var cut = RenderComponent<HelloWorld>();
+
+    // Assert
+    cut.MarkupMatches("<h1>Hello world from Blazor</h1>");
+  }
+}

docs/samples/tests/nunit/HelloWorldRazorInstancePerTestCase.razor

@@ -0,0 +1,14 @@
+@attribute [FixtureLifeCycle(LifeCycle.InstancePerTestCase)]
+@inherits Bunit.TestContext
+
+@code {
+  [Test]
+  public void HelloWorldComponentRendersCorrectly()
+  {
+    // Act
+    var cut = Render(@<HelloWorld />);
+
+    // Assert
+    cut.MarkupMatches(@<h1>Hello world from Blazor</h1>);
+  }
+}

docs/samples/tests/nunit/bunit.docs.nunit.samples.csproj

@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="nunit" Version="3.12.0" />
+    <PackageReference Include="nunit" Version="3.13.3" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.15.1" />
     <PackageReference Include="Moq" Version="4.16.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.0.0" />

docs/site/docs/getting-started/writing-tests.md

@@ -68,6 +68,10 @@ The test above does the following:
 2. Renders the `<HelloWorld>` component using <xref:Bunit.TestContext>, which is done through the `Render(RenderFragment)` method. We cover passing parameters to components on the <xref:passing-parameters-to-components> page.
 3. Verifies the rendered markup from the `<HelloWorld>` component using the `MarkupMatches` method. The `MarkupMatches` method performs a semantic comparison of the expected markup with the rendered markup.
 
+Alternatively, use the [LifeCycle.InstancePerTestCase](https://docs.nunit.org/articles/nunit/writing-tests/attributes/fixturelifecycle.html) attribute (introduced in NUnit 3.13) so that a new instance of the test class is created for each test removing the need for the wrapper.
+
+[!code-csharp[HelloWorldInstancePerTestCase.cs](../../../samples/tests/nunit/HelloWorldInstancePerTestCase.cs#L5-L17)]
+
 # [MSTest](#tab/mstest)
 
 [!code-cshtml[HelloWorldRazorTest.razor](../../../samples/tests/mstest/HelloWorldRazorTest.razor)]
@@ -150,6 +154,10 @@ The test above does the following:
 2. Renders the `<HelloWorld>` component using <xref:Bunit.TestContext>, which is done through the <xref:Bunit.TestContext.RenderComponent``1(Action{Bunit.ComponentParameterCollectionBuilder{``0}})> method. We cover passing parameters to components on the <xref:passing-parameters-to-components> page.
 3. Verifies the rendered markup from the `<HelloWorld>` component using the `MarkupMatches` method. The `MarkupMatches` method performs a semantic comparison of the expected markup with the rendered markup.
 
+Alternatively, use the [LifeCycle.InstancePerTestCase](https://docs.nunit.org/articles/nunit/writing-tests/attributes/fixturelifecycle.html) attribute (introduced in NUnit 3.13) so that a new instance of the test class is created for each test removing the need for the wrapper.
+
+[!code-csharp[HelloWorldRazorInstancePerTestCase.razor](../../../samples/tests/nunit/HelloWorldInstancePerTestCase.cs)]
+
 # [MSTest](#tab/mstest)
 
 [!code-csharp[HelloWorldTest.cs](../../../samples/tests/mstest/HelloWorldTest.cs#L3-L20)]