Verify that the generated assembly info contains the GitVersionInformationAttribute and that it has the correct values.

Author: asbjornu

src/GitVersionTask.Tests/AssemblyInfoBuilderTests.cs

@@ -1,6 +1,7 @@
 using System;
 using System.IO;
 using System.Linq;
+using System.Reflection;
 using System.Runtime.CompilerServices;
 using ApprovalTests;
 using GitVersion;
@@ -29,12 +30,20 @@ public void VerifyCreatedCode()
         Approvals.Verify(assemblyInfoText);
 
         var compilation = CSharpCompilation.Create("Fake.dll")
-            .WithOptions(new CSharpCompilationOptions(OutputKind.NetModule))
+            .WithOptions(new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary))
             .AddReferences(MetadataReference.CreateFromFile(typeof(object).Assembly.Location))
             .AddSyntaxTrees(CSharpSyntaxTree.ParseText(assemblyInfoText));
 
-        var emitResult = compilation.Emit(new MemoryStream());
-        Assert.IsTrue(emitResult.Success, string.Join(Environment.NewLine, emitResult.Diagnostics.Select(x => x.Descriptor)));
+        using (var stream = new MemoryStream())
+        {
+            var emitResult = compilation.Emit(stream);
+            
+            Assert.IsTrue(emitResult.Success, string.Join(Environment.NewLine, emitResult.Diagnostics.Select(x => x.Descriptor)));
+
+            stream.Seek(0, SeekOrigin.Begin);
+            var assembly = Assembly.Load(stream.ToArray());
+            VerifyGitVersionInformationAttribute(assembly, versionVariables);
+        }
     }
 
     [Test]
@@ -89,4 +98,30 @@ static void VerifyAssemblyVersion(AssemblyVersioningScheme avs)
         var emitResult = compilation.Emit(new MemoryStream());
         Assert.IsTrue(emitResult.Success, string.Join(Environment.NewLine, emitResult.Diagnostics.Select(x => x.Descriptor)));
     }
+
+    static void VerifyGitVersionInformationAttribute(Assembly assembly, VersionVariables versionVariables)
+    {
+        var gitVersionInformationAttributeData = assembly.CustomAttributes
+            .FirstOrDefault(a => a.AttributeType.Name == "GitVersionInformationAttribute");
+
+        Assert.IsNotNull(gitVersionInformationAttributeData);
+
+        var gitVersionInformationAttributeType = gitVersionInformationAttributeData.AttributeType;
+        var gitVersionInformationAttribute = assembly
+            .GetCustomAttributes(gitVersionInformationAttributeType)
+            .FirstOrDefault();
+
+        Assert.IsNotNull(gitVersionInformationAttribute);
+
+        var properties = gitVersionInformationAttributeType.GetProperties(BindingFlags.Instance | BindingFlags.Public);
+
+        foreach (var variable in versionVariables)
+        {
+            var property = properties.FirstOrDefault(p => p.Name == variable.Key);
+            Assert.IsNotNull(property);
+
+            var propertyValue = property.GetValue(gitVersionInformationAttribute, null);
+            Assert.AreEqual(variable.Value, propertyValue, "{0} had an invalid value.", property.Name);
+        }
+    }
 }

src/GitVersionTask/AssemblyInfoBuilder/AssemblyInfoBuilder.cs

@@ -23,7 +23,7 @@ public string GetAssemblyInfoText(VersionVariables vars, string assemblyName)
 namespace {6}
 {{
     [System.Runtime.CompilerServices.CompilerGenerated]
-[AttributeUsage(AttributeTargets.Assembly)]
+    [AttributeUsage(AttributeTargets.Assembly)]
     sealed class ReleaseDateAttribute : System.Attribute
     {{
         public string Date {{ get; private set; }}
@@ -41,7 +41,7 @@ static class GitVersionInformation
     }}
 
     [System.Runtime.CompilerServices.CompilerGenerated]
-[AttributeUsage(AttributeTargets.Assembly)]
+    [AttributeUsage(AttributeTargets.Assembly)]
     sealed class GitVersionInformationAttribute : System.Attribute
     {{
 {5}