gistfile1.cs

            var generatedCode = generator.TransformText();

            var comparer = DesktopAssemblyIdentityComparer.Default;
            var options = new CSharpCompilationOptions(
                OutputKind.DynamicallyLinkedLibrary, 
                assemblyIdentityComparer:comparer);

            var tree = SyntaxFactory.ParseSyntaxTree(generatedCode);
            var compilation = CSharpCompilation
                .Create("measures.dll")
                .WithOptions(options)
                .AddSyntaxTrees(tree)
                .AddReferences(MetadataReference.CreateFromAssembly(typeof(object).Assembly),
                               MetadataReference.CreateFromAssembly(typeof(MeasureDocumentAdapter).Assembly),
                               MetadataReference.CreateFromAssembly(typeof(PatientRecord).Assembly),
                               MetadataReference.CreateFromAssembly(typeof(HashSet<>).Assembly),
                               MetadataReference.CreateFromAssembly(typeof(ObjectId).Assembly));

            var errorsAndWarnings = compilation.GetDiagnostics();
            foreach (var diagnostic in errorsAndWarnings)
            {
                Assert.Fail(diagnostic.GetMessage());
            }