Add missing constant for AssemblyDescriptionAttribute

Fixes #234

src/ThisAssembly.AssemblyInfo/AssemblyInfoGenerator.cs

@@ -21,6 +21,7 @@ public class AssemblyInfoGenerator : IIncrementalGenerator
             nameof(AssemblyCompanyAttribute),
             nameof(AssemblyCopyrightAttribute),
             nameof(AssemblyTitleAttribute),
+            nameof(AssemblyDescriptionAttribute),
             nameof(AssemblyProductAttribute),
             nameof(AssemblyVersionAttribute),
             nameof(AssemblyInformationalVersionAttribute),

src/ThisAssembly.Tests/Extensions.cs

@@ -0,0 +1,25 @@
+using System;
+
+public static class Extensions
+{
+    public static string ReplaceLineEndings(this string input) => ReplaceLineEndings(input, Environment.NewLine);
+
+    public static string ReplaceLineEndings(this string input, string replacementText)
+    {
+#if NET6_0_OR_GREATER
+        return input.ReplaceLineEndings(replacementText);
+#else
+        // First normalize to LF
+        var lineFeedInput = input
+            .Replace("\r\n", "\n")
+            .Replace("\r", "\n")
+            .Replace("\f", "\n")
+            .Replace("\x0085", "\n")
+            .Replace("\x2028", "\n")
+            .Replace("\x2029", "\n");
+
+        // Then normalize to the replacement text
+        return lineFeedInput.Replace("\n", replacementText);
+#endif
+    }
+}

src/ThisAssembly.Tests/Tests.cs

@@ -17,6 +17,11 @@ public void CanReadResourceFile()
     public void CanUseInfo()
         => Assert.Equal("ThisAssembly.Tests", ThisAssembly.Info.Title);
 
+    [Fact]
+    public void CanUseInfoDescription()
+        => Assert.Equal(@"A Description
+with a newline".ReplaceLineEndings(), ThisAssembly.Info.Description.ReplaceLineEndings());
+
     [Fact]
     public void CanUseConstants()
         => Assert.Equal("Baz", ThisAssembly.Constants.Foo.Bar);

src/ThisAssembly.Tests/ThisAssembly.Tests.csproj

@@ -2,7 +2,9 @@
 
   <PropertyGroup>
     <IsPackable>false</IsPackable>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
+    <Description>A Description
+with a newline</Description>
     <TargetFramework Condition="'$(BuildingInsideVisualStudio)' == 'true'">net472</TargetFramework>
     <RootNamespace>ThisAssemblyTests</RootNamespace>
     <CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>